/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_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 21:00:39,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 21:00:39,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 21:00:39,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 21:00:39,371 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 21:00:39,390 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 21:00:39,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 21:00:39,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 21:00:39,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 21:00:39,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 21:00:39,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 21:00:39,392 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 21:00:39,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 21:00:39,392 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 21:00:39,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 21:00:39,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 21:00:39,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 21:00:39,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 21:00:39,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 21:00:39,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 21:00:39,393 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 21:00:39,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 21:00:39,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 21:00:39,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 21:00:39,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 21:00:39,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 21:00:39,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 21:00:39,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 21:00:39,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 21:00:39,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 21:00:39,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 21:00:39,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 21:00:39,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 21:00:39,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 21:00:39,395 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 21:00:39,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 21:00:39,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 21:00:39,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 21:00:39,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 21:00:39,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 21:00:39,699 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 21:00:39,701 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 21:00:39,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl [2021-06-05 21:00:39,702 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl' [2021-06-05 21:00:39,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 21:00:39,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 21:00:39,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 21:00:39,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 21:00:39,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 21:00:39,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/1) ... [2021-06-05 21:00:39,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/1) ... [2021-06-05 21:00:39,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 21:00:39,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 21:00:39,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 21:00:39,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 21:00:39,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/1) ... [2021-06-05 21:00:39,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/1) ... [2021-06-05 21:00:39,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/1) ... [2021-06-05 21:00:39,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/1) ... [2021-06-05 21:00:39,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/1) ... [2021-06-05 21:00:39,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/1) ... [2021-06-05 21:00:39,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/1) ... [2021-06-05 21:00:39,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 21:00:39,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 21:00:39,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 21:00:39,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 21:00:39,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (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 21:00:39,848 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-05 21:00:39,848 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-05 21:00:39,848 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-05 21:00:39,849 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-05 21:00:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-05 21:00:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-05 21:00:39,849 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-05 21:00:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-05 21:00:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-05 21:00:39,849 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-05 21:00:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-05 21:00:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-05 21:00:39,849 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-05 21:00:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-05 21:00:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-05 21:00:39,850 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 21:00:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 21:00:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 21:00:39,850 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-05 21:00:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-05 21:00:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-05 21:00:39,851 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-05 21:00:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-05 21:00:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-05 21:00:39,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-06-05 21:00:39,872 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-06-05 21:00:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-06-05 21:00:39,873 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 21:00:39,993 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 21:00:39,993 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 21:00:39,994 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 09:00:39 BoogieIcfgContainer [2021-06-05 21:00:39,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 21:00:39,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 21:00:39,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 21:00:39,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 21:00:39,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 09:00:39" (1/2) ... [2021-06-05 21:00:39,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d14f905 and model type example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 09:00:39, skipping insertion in model container [2021-06-05 21:00:39,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 09:00:39" (2/2) ... [2021-06-05 21:00:40,000 INFO L111 eAbstractionObserver]: Analyzing ICFG example_8.bpl [2021-06-05 21:00:40,004 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 21:00:40,004 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 21:00:40,004 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 21:00:40,004 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 21:00:40,097 INFO L149 ThreadInstanceAdder]: Constructed 64 joinOtherThreadTransitions. [2021-06-05 21:00:40,129 INFO L255 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-06-05 21:00:40,142 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 21:00:40,143 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 21:00:40,143 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 21:00:40,143 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 21:00:40,143 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 21:00:40,143 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 21:00:40,143 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 21:00:40,143 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 21:00:40,154 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 99 transitions, 430 flow [2021-06-05 21:00:52,615 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 68819 states, 68817 states have (on average 5.968220061903309) internal successors, (410715), 68818 states have internal predecessors, (410715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:00:52,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 68819 states, 68817 states have (on average 5.968220061903309) internal successors, (410715), 68818 states have internal predecessors, (410715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:00:53,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:00:53,381 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:00:53,382 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:00:53,382 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:00:53,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:00:53,386 INFO L82 PathProgramCache]: Analyzing trace with hash 322589815, now seen corresponding path program 1 times [2021-06-05 21:00:53,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:00:53,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160362024] [2021-06-05 21:00:53,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:00:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:00:53,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:00:53,489 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:00:53,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160362024] [2021-06-05 21:00:53,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160362024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:00:53,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:00:53,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:00:53,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632228924] [2021-06-05 21:00:53,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:00:53,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:00:53,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:00:53,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:00:53,604 INFO L87 Difference]: Start difference. First operand has 68819 states, 68817 states have (on average 5.968220061903309) internal successors, (410715), 68818 states have internal predecessors, (410715), 0 states have call successors, (0), 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 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:00:54,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:00:54,516 INFO L93 Difference]: Finished difference Result 66632 states and 393219 transitions. [2021-06-05 21:00:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:00:54,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:00:54,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:00:55,128 INFO L225 Difference]: With dead ends: 66632 [2021-06-05 21:00:55,128 INFO L226 Difference]: Without dead ends: 66630 [2021-06-05 21:00:55,129 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:00:57,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66630 states. [2021-06-05 21:00:59,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66630 to 66630. [2021-06-05 21:00:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66630 states, 66629 states have (on average 5.901589398009875) internal successors, (393217), 66629 states have internal predecessors, (393217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:00:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66630 states to 66630 states and 393217 transitions. [2021-06-05 21:00:59,882 INFO L78 Accepts]: Start accepts. Automaton has 66630 states and 393217 transitions. Word has length 33 [2021-06-05 21:00:59,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:00:59,883 INFO L482 AbstractCegarLoop]: Abstraction has 66630 states and 393217 transitions. [2021-06-05 21:00:59,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:00:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 66630 states and 393217 transitions. [2021-06-05 21:01:00,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:00,105 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:00,105 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:00,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 21:01:00,105 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:00,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:00,106 INFO L82 PathProgramCache]: Analyzing trace with hash -469237921, now seen corresponding path program 1 times [2021-06-05 21:01:00,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:00,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059697823] [2021-06-05 21:01:00,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:00,136 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 21:01:00,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:00,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059697823] [2021-06-05 21:01:00,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059697823] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:00,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:00,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:01:00,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428893361] [2021-06-05 21:01:00,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:01:00,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:00,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:01:00,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:00,147 INFO L87 Difference]: Start difference. First operand 66630 states and 393217 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:00,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:00,819 INFO L93 Difference]: Finished difference Result 59340 states and 340729 transitions. [2021-06-05 21:01:00,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:01:00,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:00,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:01,335 INFO L225 Difference]: With dead ends: 59340 [2021-06-05 21:01:01,335 INFO L226 Difference]: Without dead ends: 59340 [2021-06-05 21:01:01,336 INFO L810 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 21:01:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59340 states. [2021-06-05 21:01:04,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59340 to 59340. [2021-06-05 21:01:04,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59340 states, 59339 states have (on average 5.74207519506564) internal successors, (340729), 59339 states have internal predecessors, (340729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59340 states to 59340 states and 340729 transitions. [2021-06-05 21:01:04,850 INFO L78 Accepts]: Start accepts. Automaton has 59340 states and 340729 transitions. Word has length 33 [2021-06-05 21:01:04,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:04,850 INFO L482 AbstractCegarLoop]: Abstraction has 59340 states and 340729 transitions. [2021-06-05 21:01:04,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:04,851 INFO L276 IsEmpty]: Start isEmpty. Operand 59340 states and 340729 transitions. [2021-06-05 21:01:05,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:05,362 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:05,362 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:05,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 21:01:05,363 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:05,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:05,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1980580347, now seen corresponding path program 1 times [2021-06-05 21:01:05,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:05,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034404276] [2021-06-05 21:01:05,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:05,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:05,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034404276] [2021-06-05 21:01:05,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034404276] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:05,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:05,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:01:05,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076962609] [2021-06-05 21:01:05,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:01:05,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:05,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:01:05,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:05,430 INFO L87 Difference]: Start difference. First operand 59340 states and 340729 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:05,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:05,714 INFO L93 Difference]: Finished difference Result 43707 states and 246391 transitions. [2021-06-05 21:01:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:01:05,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:05,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:05,892 INFO L225 Difference]: With dead ends: 43707 [2021-06-05 21:01:05,892 INFO L226 Difference]: Without dead ends: 43707 [2021-06-05 21:01:05,892 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:07,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43707 states. [2021-06-05 21:01:08,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43707 to 43707. [2021-06-05 21:01:08,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43707 states, 43706 states have (on average 5.6374639637578365) internal successors, (246391), 43706 states have internal predecessors, (246391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:08,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43707 states to 43707 states and 246391 transitions. [2021-06-05 21:01:08,381 INFO L78 Accepts]: Start accepts. Automaton has 43707 states and 246391 transitions. Word has length 33 [2021-06-05 21:01:08,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:08,381 INFO L482 AbstractCegarLoop]: Abstraction has 43707 states and 246391 transitions. [2021-06-05 21:01:08,381 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:08,381 INFO L276 IsEmpty]: Start isEmpty. Operand 43707 states and 246391 transitions. [2021-06-05 21:01:08,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:08,489 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:08,489 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:08,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 21:01:08,489 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:08,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:08,490 INFO L82 PathProgramCache]: Analyzing trace with hash -876254783, now seen corresponding path program 1 times [2021-06-05 21:01:08,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:08,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106837363] [2021-06-05 21:01:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:08,529 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 21:01:08,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:08,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106837363] [2021-06-05 21:01:08,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106837363] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:08,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:08,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:01:08,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378217169] [2021-06-05 21:01:08,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:01:08,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:08,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:01:08,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:08,531 INFO L87 Difference]: Start difference. First operand 43707 states and 246391 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:09,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:09,103 INFO L93 Difference]: Finished difference Result 32205 states and 178297 transitions. [2021-06-05 21:01:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:01:09,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:09,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:09,220 INFO L225 Difference]: With dead ends: 32205 [2021-06-05 21:01:09,221 INFO L226 Difference]: Without dead ends: 32205 [2021-06-05 21:01:09,221 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:10,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32205 states. [2021-06-05 21:01:10,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32205 to 32205. [2021-06-05 21:01:11,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32205 states, 32204 states have (on average 5.536486150788722) internal successors, (178297), 32204 states have internal predecessors, (178297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:11,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32205 states to 32205 states and 178297 transitions. [2021-06-05 21:01:11,386 INFO L78 Accepts]: Start accepts. Automaton has 32205 states and 178297 transitions. Word has length 33 [2021-06-05 21:01:11,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:11,386 INFO L482 AbstractCegarLoop]: Abstraction has 32205 states and 178297 transitions. [2021-06-05 21:01:11,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:11,386 INFO L276 IsEmpty]: Start isEmpty. Operand 32205 states and 178297 transitions. [2021-06-05 21:01:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:11,466 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:11,466 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:11,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 21:01:11,467 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:11,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:11,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1891952389, now seen corresponding path program 1 times [2021-06-05 21:01:11,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:11,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964901420] [2021-06-05 21:01:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:11,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:11,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:11,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964901420] [2021-06-05 21:01:11,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964901420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:11,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:11,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:01:11,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538087365] [2021-06-05 21:01:11,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:01:11,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:11,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:01:11,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:11,523 INFO L87 Difference]: Start difference. First operand 32205 states and 178297 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:11,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:11,677 INFO L93 Difference]: Finished difference Result 24672 states and 133261 transitions. [2021-06-05 21:01:11,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:01:11,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:11,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:11,759 INFO L225 Difference]: With dead ends: 24672 [2021-06-05 21:01:11,760 INFO L226 Difference]: Without dead ends: 24672 [2021-06-05 21:01:11,760 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24672 states. [2021-06-05 21:01:13,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24672 to 24672. [2021-06-05 21:01:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24672 states, 24671 states have (on average 5.401524056584654) internal successors, (133261), 24671 states have internal predecessors, (133261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:13,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24672 states to 24672 states and 133261 transitions. [2021-06-05 21:01:13,326 INFO L78 Accepts]: Start accepts. Automaton has 24672 states and 133261 transitions. Word has length 33 [2021-06-05 21:01:13,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:13,326 INFO L482 AbstractCegarLoop]: Abstraction has 24672 states and 133261 transitions. [2021-06-05 21:01:13,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 24672 states and 133261 transitions. [2021-06-05 21:01:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:13,388 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:13,388 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:13,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 21:01:13,388 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:13,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:13,389 INFO L82 PathProgramCache]: Analyzing trace with hash -201567345, now seen corresponding path program 1 times [2021-06-05 21:01:13,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:13,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582477739] [2021-06-05 21:01:13,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:13,403 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 21:01:13,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:13,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582477739] [2021-06-05 21:01:13,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582477739] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:13,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:13,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:01:13,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683596225] [2021-06-05 21:01:13,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:01:13,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:13,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:01:13,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:13,409 INFO L87 Difference]: Start difference. First operand 24672 states and 133261 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:13,542 INFO L93 Difference]: Finished difference Result 17820 states and 95581 transitions. [2021-06-05 21:01:13,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:01:13,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:13,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:13,603 INFO L225 Difference]: With dead ends: 17820 [2021-06-05 21:01:13,604 INFO L226 Difference]: Without dead ends: 17820 [2021-06-05 21:01:13,604 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2021-06-05 21:01:14,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 17820. [2021-06-05 21:01:14,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17820 states, 17819 states have (on average 5.363993490094843) internal successors, (95581), 17819 states have internal predecessors, (95581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17820 states to 17820 states and 95581 transitions. [2021-06-05 21:01:14,815 INFO L78 Accepts]: Start accepts. Automaton has 17820 states and 95581 transitions. Word has length 33 [2021-06-05 21:01:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:14,816 INFO L482 AbstractCegarLoop]: Abstraction has 17820 states and 95581 transitions. [2021-06-05 21:01:14,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 17820 states and 95581 transitions. [2021-06-05 21:01:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:14,852 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:14,852 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:14,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 21:01:14,852 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:14,853 INFO L82 PathProgramCache]: Analyzing trace with hash 519047745, now seen corresponding path program 1 times [2021-06-05 21:01:14,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:14,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167481113] [2021-06-05 21:01:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:14,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:14,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:14,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167481113] [2021-06-05 21:01:14,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167481113] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:14,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:14,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 21:01:14,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002997753] [2021-06-05 21:01:14,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 21:01:14,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:14,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 21:01:14,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:14,874 INFO L87 Difference]: Start difference. First operand 17820 states and 95581 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:15,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:15,119 INFO L93 Difference]: Finished difference Result 13122 states and 69985 transitions. [2021-06-05 21:01:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 21:01:15,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:15,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:15,161 INFO L225 Difference]: With dead ends: 13122 [2021-06-05 21:01:15,162 INFO L226 Difference]: Without dead ends: 13122 [2021-06-05 21:01:15,162 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 21:01:15,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13122 states. [2021-06-05 21:01:15,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13122 to 13122. [2021-06-05 21:01:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13122 states, 13121 states have (on average 5.333816020120418) internal successors, (69985), 13121 states have internal predecessors, (69985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13122 states to 13122 states and 69985 transitions. [2021-06-05 21:01:15,979 INFO L78 Accepts]: Start accepts. Automaton has 13122 states and 69985 transitions. Word has length 33 [2021-06-05 21:01:15,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:15,979 INFO L482 AbstractCegarLoop]: Abstraction has 13122 states and 69985 transitions. [2021-06-05 21:01:15,979 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:15,979 INFO L276 IsEmpty]: Start isEmpty. Operand 13122 states and 69985 transitions. [2021-06-05 21:01:16,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:16,006 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:16,007 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:16,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 21:01:16,007 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:16,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:16,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1645366767, now seen corresponding path program 1 times [2021-06-05 21:01:16,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:16,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771890078] [2021-06-05 21:01:16,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:16,299 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 21:01:16,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:16,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771890078] [2021-06-05 21:01:16,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771890078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:16,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:16,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:16,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772039255] [2021-06-05 21:01:16,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:16,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:16,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:16,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:16,302 INFO L87 Difference]: Start difference. First operand 13122 states and 69985 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:16,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:16,734 INFO L93 Difference]: Finished difference Result 31785 states and 159982 transitions. [2021-06-05 21:01:16,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:16,735 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:16,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:16,838 INFO L225 Difference]: With dead ends: 31785 [2021-06-05 21:01:16,839 INFO L226 Difference]: Without dead ends: 31026 [2021-06-05 21:01:16,839 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 210.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:17,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31026 states. [2021-06-05 21:01:18,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31026 to 13439. [2021-06-05 21:01:18,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13439 states, 13438 states have (on average 5.328471498734931) internal successors, (71604), 13438 states have internal predecessors, (71604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 71604 transitions. [2021-06-05 21:01:18,134 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 71604 transitions. Word has length 33 [2021-06-05 21:01:18,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:18,135 INFO L482 AbstractCegarLoop]: Abstraction has 13439 states and 71604 transitions. [2021-06-05 21:01:18,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:18,135 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 71604 transitions. [2021-06-05 21:01:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:18,166 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:18,166 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:18,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 21:01:18,166 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:18,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:18,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1568537903, now seen corresponding path program 2 times [2021-06-05 21:01:18,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:18,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940778587] [2021-06-05 21:01:18,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:18,442 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 21:01:18,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:18,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940778587] [2021-06-05 21:01:18,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940778587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:18,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:18,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:18,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123545090] [2021-06-05 21:01:18,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:18,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:18,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:18,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:18,444 INFO L87 Difference]: Start difference. First operand 13439 states and 71604 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:18,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:18,752 INFO L93 Difference]: Finished difference Result 31777 states and 159834 transitions. [2021-06-05 21:01:18,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:18,753 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:18,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:18,872 INFO L225 Difference]: With dead ends: 31777 [2021-06-05 21:01:18,872 INFO L226 Difference]: Without dead ends: 30906 [2021-06-05 21:01:18,872 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 235.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:19,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30906 states. [2021-06-05 21:01:20,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30906 to 13319. [2021-06-05 21:01:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13319 states, 13318 states have (on average 5.335035290584171) internal successors, (71052), 13318 states have internal predecessors, (71052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13319 states to 13319 states and 71052 transitions. [2021-06-05 21:01:20,132 INFO L78 Accepts]: Start accepts. Automaton has 13319 states and 71052 transitions. Word has length 33 [2021-06-05 21:01:20,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:20,132 INFO L482 AbstractCegarLoop]: Abstraction has 13319 states and 71052 transitions. [2021-06-05 21:01:20,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:20,132 INFO L276 IsEmpty]: Start isEmpty. Operand 13319 states and 71052 transitions. [2021-06-05 21:01:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:20,160 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:20,160 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:20,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 21:01:20,160 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:20,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:20,161 INFO L82 PathProgramCache]: Analyzing trace with hash -930535953, now seen corresponding path program 3 times [2021-06-05 21:01:20,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:20,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589531899] [2021-06-05 21:01:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:20,408 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 21:01:20,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:20,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589531899] [2021-06-05 21:01:20,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589531899] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:20,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:20,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:20,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863654614] [2021-06-05 21:01:20,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:20,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:20,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:20,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:20,411 INFO L87 Difference]: Start difference. First operand 13319 states and 71052 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:20,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:20,870 INFO L93 Difference]: Finished difference Result 31996 states and 160881 transitions. [2021-06-05 21:01:20,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:20,871 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:20,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:20,976 INFO L225 Difference]: With dead ends: 31996 [2021-06-05 21:01:20,976 INFO L226 Difference]: Without dead ends: 31237 [2021-06-05 21:01:20,976 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 213.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:21,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31237 states. [2021-06-05 21:01:22,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31237 to 13507. [2021-06-05 21:01:22,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13507 states, 13506 states have (on average 5.321782911298682) internal successors, (71876), 13506 states have internal predecessors, (71876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:22,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 71876 transitions. [2021-06-05 21:01:22,304 INFO L78 Accepts]: Start accepts. Automaton has 13507 states and 71876 transitions. Word has length 33 [2021-06-05 21:01:22,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:22,304 INFO L482 AbstractCegarLoop]: Abstraction has 13507 states and 71876 transitions. [2021-06-05 21:01:22,304 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:22,304 INFO L276 IsEmpty]: Start isEmpty. Operand 13507 states and 71876 transitions. [2021-06-05 21:01:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:22,333 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:22,333 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:22,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 21:01:22,333 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:22,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:22,334 INFO L82 PathProgramCache]: Analyzing trace with hash -160764433, now seen corresponding path program 4 times [2021-06-05 21:01:22,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:22,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011448355] [2021-06-05 21:01:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:22,565 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 21:01:22,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:22,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011448355] [2021-06-05 21:01:22,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011448355] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:22,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:22,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:22,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710353909] [2021-06-05 21:01:22,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:22,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:22,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:22,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:22,568 INFO L87 Difference]: Start difference. First operand 13507 states and 71876 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:22,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:22,808 INFO L93 Difference]: Finished difference Result 32131 states and 161352 transitions. [2021-06-05 21:01:22,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:22,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:22,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:22,911 INFO L225 Difference]: With dead ends: 32131 [2021-06-05 21:01:22,911 INFO L226 Difference]: Without dead ends: 31049 [2021-06-05 21:01:22,912 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:23,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31049 states. [2021-06-05 21:01:24,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31049 to 13319. [2021-06-05 21:01:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13319 states, 13318 states have (on average 5.328127346448416) internal successors, (70960), 13318 states have internal predecessors, (70960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:24,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13319 states to 13319 states and 70960 transitions. [2021-06-05 21:01:24,258 INFO L78 Accepts]: Start accepts. Automaton has 13319 states and 70960 transitions. Word has length 33 [2021-06-05 21:01:24,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:24,259 INFO L482 AbstractCegarLoop]: Abstraction has 13319 states and 70960 transitions. [2021-06-05 21:01:24,259 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:24,259 INFO L276 IsEmpty]: Start isEmpty. Operand 13319 states and 70960 transitions. [2021-06-05 21:01:24,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:24,288 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:24,288 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:24,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 21:01:24,289 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:24,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:24,289 INFO L82 PathProgramCache]: Analyzing trace with hash -542530991, now seen corresponding path program 5 times [2021-06-05 21:01:24,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:24,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808694150] [2021-06-05 21:01:24,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:24,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:24,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:24,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808694150] [2021-06-05 21:01:24,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808694150] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:24,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:24,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:24,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419187937] [2021-06-05 21:01:24,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:24,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:24,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:24,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:24,517 INFO L87 Difference]: Start difference. First operand 13319 states and 70960 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:24,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:24,773 INFO L93 Difference]: Finished difference Result 31976 states and 160717 transitions. [2021-06-05 21:01:24,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:24,774 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:24,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:24,880 INFO L225 Difference]: With dead ends: 31976 [2021-06-05 21:01:24,881 INFO L226 Difference]: Without dead ends: 31225 [2021-06-05 21:01:24,881 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 209.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:25,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31225 states. [2021-06-05 21:01:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31225 to 13503. [2021-06-05 21:01:26,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.315656939712635) internal successors, (71772), 13502 states have internal predecessors, (71772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:26,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71772 transitions. [2021-06-05 21:01:26,105 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71772 transitions. Word has length 33 [2021-06-05 21:01:26,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:26,105 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71772 transitions. [2021-06-05 21:01:26,105 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:26,105 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71772 transitions. [2021-06-05 21:01:26,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:26,133 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:26,133 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:26,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 21:01:26,133 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:26,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:26,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1931400879, now seen corresponding path program 6 times [2021-06-05 21:01:26,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:26,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577022517] [2021-06-05 21:01:26,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:26,329 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 21:01:26,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:26,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577022517] [2021-06-05 21:01:26,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577022517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:26,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:26,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:26,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806952648] [2021-06-05 21:01:26,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:26,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:26,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:26,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:26,332 INFO L87 Difference]: Start difference. First operand 13503 states and 71772 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:26,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:26,682 INFO L93 Difference]: Finished difference Result 32119 states and 161220 transitions. [2021-06-05 21:01:26,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:26,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:26,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:26,783 INFO L225 Difference]: With dead ends: 32119 [2021-06-05 21:01:26,783 INFO L226 Difference]: Without dead ends: 30949 [2021-06-05 21:01:26,783 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30949 states. [2021-06-05 21:01:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30949 to 13227. [2021-06-05 21:01:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 5.334643883260245) internal successors, (70556), 13226 states have internal predecessors, (70556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 70556 transitions. [2021-06-05 21:01:27,981 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 70556 transitions. Word has length 33 [2021-06-05 21:01:27,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:27,981 INFO L482 AbstractCegarLoop]: Abstraction has 13227 states and 70556 transitions. [2021-06-05 21:01:27,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:27,981 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 70556 transitions. [2021-06-05 21:01:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:28,009 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:28,009 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:28,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 21:01:28,009 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:28,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:28,009 INFO L82 PathProgramCache]: Analyzing trace with hash 769553547, now seen corresponding path program 7 times [2021-06-05 21:01:28,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:28,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652125556] [2021-06-05 21:01:28,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:28,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:28,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:28,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652125556] [2021-06-05 21:01:28,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652125556] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:28,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:28,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:28,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412430076] [2021-06-05 21:01:28,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:28,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:28,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:28,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:28,204 INFO L87 Difference]: Start difference. First operand 13227 states and 70556 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:28,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:28,482 INFO L93 Difference]: Finished difference Result 31442 states and 158327 transitions. [2021-06-05 21:01:28,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:28,482 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:28,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:28,580 INFO L225 Difference]: With dead ends: 31442 [2021-06-05 21:01:28,580 INFO L226 Difference]: Without dead ends: 30683 [2021-06-05 21:01:28,580 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:29,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30683 states. [2021-06-05 21:01:29,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30683 to 13403. [2021-06-05 21:01:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13403 states, 13402 states have (on average 5.324876884047157) internal successors, (71364), 13402 states have internal predecessors, (71364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:29,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13403 states to 13403 states and 71364 transitions. [2021-06-05 21:01:29,863 INFO L78 Accepts]: Start accepts. Automaton has 13403 states and 71364 transitions. Word has length 33 [2021-06-05 21:01:29,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:29,863 INFO L482 AbstractCegarLoop]: Abstraction has 13403 states and 71364 transitions. [2021-06-05 21:01:29,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:29,863 INFO L276 IsEmpty]: Start isEmpty. Operand 13403 states and 71364 transitions. [2021-06-05 21:01:29,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:29,900 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:29,900 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:29,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 21:01:29,900 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:29,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:29,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1850616173, now seen corresponding path program 8 times [2021-06-05 21:01:29,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:29,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902403002] [2021-06-05 21:01:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:30,127 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 21:01:30,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:30,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902403002] [2021-06-05 21:01:30,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902403002] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:30,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:30,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:30,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261937104] [2021-06-05 21:01:30,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:30,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:30,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:30,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:30,129 INFO L87 Difference]: Start difference. First operand 13403 states and 71364 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:30,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:30,376 INFO L93 Difference]: Finished difference Result 31434 states and 158179 transitions. [2021-06-05 21:01:30,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:30,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:30,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:30,476 INFO L225 Difference]: With dead ends: 31434 [2021-06-05 21:01:30,476 INFO L226 Difference]: Without dead ends: 30563 [2021-06-05 21:01:30,476 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:31,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30563 states. [2021-06-05 21:01:31,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30563 to 13283. [2021-06-05 21:01:31,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13283 states, 13282 states have (on average 5.3317271495256735) internal successors, (70816), 13282 states have internal predecessors, (70816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:31,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 70816 transitions. [2021-06-05 21:01:31,869 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 70816 transitions. Word has length 33 [2021-06-05 21:01:31,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:31,869 INFO L482 AbstractCegarLoop]: Abstraction has 13283 states and 70816 transitions. [2021-06-05 21:01:31,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:31,869 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 70816 transitions. [2021-06-05 21:01:31,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:31,896 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:31,896 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:31,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 21:01:31,896 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:31,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:31,897 INFO L82 PathProgramCache]: Analyzing trace with hash 288651501, now seen corresponding path program 9 times [2021-06-05 21:01:31,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:31,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733168079] [2021-06-05 21:01:31,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:32,050 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 21:01:32,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:32,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733168079] [2021-06-05 21:01:32,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733168079] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:32,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:32,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:32,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216091272] [2021-06-05 21:01:32,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:32,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:32,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:32,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:32,053 INFO L87 Difference]: Start difference. First operand 13283 states and 70816 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:32,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:32,496 INFO L93 Difference]: Finished difference Result 31418 states and 158171 transitions. [2021-06-05 21:01:32,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:32,496 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:32,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:32,603 INFO L225 Difference]: With dead ends: 31418 [2021-06-05 21:01:32,603 INFO L226 Difference]: Without dead ends: 30659 [2021-06-05 21:01:32,604 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:33,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30659 states. [2021-06-05 21:01:33,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30659 to 13395. [2021-06-05 21:01:33,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.321785874272062) internal successors, (71280), 13394 states have internal predecessors, (71280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:33,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71280 transitions. [2021-06-05 21:01:33,827 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71280 transitions. Word has length 33 [2021-06-05 21:01:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:33,827 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71280 transitions. [2021-06-05 21:01:33,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:33,828 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71280 transitions. [2021-06-05 21:01:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:33,858 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:33,858 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:33,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 21:01:33,858 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:33,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:33,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1399594771, now seen corresponding path program 10 times [2021-06-05 21:01:33,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:33,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806568354] [2021-06-05 21:01:33,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:34,066 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 21:01:34,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:34,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806568354] [2021-06-05 21:01:34,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806568354] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:34,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:34,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:34,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255551814] [2021-06-05 21:01:34,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:34,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:34,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:34,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:34,068 INFO L87 Difference]: Start difference. First operand 13395 states and 71280 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:34,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:34,340 INFO L93 Difference]: Finished difference Result 31394 states and 157967 transitions. [2021-06-05 21:01:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:34,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:34,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:34,444 INFO L225 Difference]: With dead ends: 31394 [2021-06-05 21:01:34,444 INFO L226 Difference]: Without dead ends: 30547 [2021-06-05 21:01:34,444 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 215.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:35,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30547 states. [2021-06-05 21:01:35,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30547 to 13283. [2021-06-05 21:01:35,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13283 states, 13282 states have (on average 5.327510917030568) internal successors, (70760), 13282 states have internal predecessors, (70760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 70760 transitions. [2021-06-05 21:01:35,764 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 70760 transitions. Word has length 33 [2021-06-05 21:01:35,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:35,764 INFO L482 AbstractCegarLoop]: Abstraction has 13283 states and 70760 transitions. [2021-06-05 21:01:35,764 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 70760 transitions. [2021-06-05 21:01:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:35,794 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:35,795 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:35,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 21:01:35,795 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:35,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:35,795 INFO L82 PathProgramCache]: Analyzing trace with hash 676656463, now seen corresponding path program 11 times [2021-06-05 21:01:35,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:35,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212250137] [2021-06-05 21:01:35,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:35,980 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 21:01:35,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:35,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212250137] [2021-06-05 21:01:35,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212250137] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:35,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:35,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:35,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693689386] [2021-06-05 21:01:35,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:35,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:35,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:35,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:35,982 INFO L87 Difference]: Start difference. First operand 13283 states and 70760 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:36,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:36,258 INFO L93 Difference]: Finished difference Result 31402 states and 158059 transitions. [2021-06-05 21:01:36,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:36,266 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:36,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:36,365 INFO L225 Difference]: With dead ends: 31402 [2021-06-05 21:01:36,366 INFO L226 Difference]: Without dead ends: 30651 [2021-06-05 21:01:36,366 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 211.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:37,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30651 states. [2021-06-05 21:01:37,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30651 to 13395. [2021-06-05 21:01:37,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.317604897715395) internal successors, (71224), 13394 states have internal predecessors, (71224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:37,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71224 transitions. [2021-06-05 21:01:37,671 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71224 transitions. Word has length 33 [2021-06-05 21:01:37,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:37,671 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71224 transitions. [2021-06-05 21:01:37,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:37,671 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71224 transitions. [2021-06-05 21:01:37,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:37,699 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:37,700 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:37,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 21:01:37,700 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:37,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:37,700 INFO L82 PathProgramCache]: Analyzing trace with hash -170140499, now seen corresponding path program 12 times [2021-06-05 21:01:37,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:37,700 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752248207] [2021-06-05 21:01:37,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:37,892 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 21:01:37,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:37,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752248207] [2021-06-05 21:01:37,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752248207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:37,892 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:37,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:37,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847535774] [2021-06-05 21:01:37,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:37,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:37,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:37,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:37,894 INFO L87 Difference]: Start difference. First operand 13395 states and 71224 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:38,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:38,311 INFO L93 Difference]: Finished difference Result 31386 states and 157883 transitions. [2021-06-05 21:01:38,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:38,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:38,412 INFO L225 Difference]: With dead ends: 31386 [2021-06-05 21:01:38,412 INFO L226 Difference]: Without dead ends: 30483 [2021-06-05 21:01:38,412 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 201.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:39,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30483 states. [2021-06-05 21:01:39,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30483 to 13227. [2021-06-05 21:01:39,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 5.332526841070618) internal successors, (70528), 13226 states have internal predecessors, (70528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 70528 transitions. [2021-06-05 21:01:39,660 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 70528 transitions. Word has length 33 [2021-06-05 21:01:39,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:39,661 INFO L482 AbstractCegarLoop]: Abstraction has 13227 states and 70528 transitions. [2021-06-05 21:01:39,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 70528 transitions. [2021-06-05 21:01:39,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:39,689 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:39,689 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:39,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 21:01:39,689 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:39,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:39,690 INFO L82 PathProgramCache]: Analyzing trace with hash -445808689, now seen corresponding path program 13 times [2021-06-05 21:01:39,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:39,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451707159] [2021-06-05 21:01:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:39,883 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 21:01:39,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:39,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451707159] [2021-06-05 21:01:39,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451707159] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:39,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:39,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:39,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326611363] [2021-06-05 21:01:39,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:39,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:39,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:39,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:39,884 INFO L87 Difference]: Start difference. First operand 13227 states and 70528 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:40,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:40,124 INFO L93 Difference]: Finished difference Result 31725 states and 159654 transitions. [2021-06-05 21:01:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:40,124 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:40,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:40,225 INFO L225 Difference]: With dead ends: 31725 [2021-06-05 21:01:40,225 INFO L226 Difference]: Without dead ends: 30966 [2021-06-05 21:01:40,226 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:40,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30966 states. [2021-06-05 21:01:41,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30966 to 13427. [2021-06-05 21:01:41,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13427 states, 13426 states have (on average 5.32429614181439) internal successors, (71484), 13426 states have internal predecessors, (71484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:41,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13427 states to 13427 states and 71484 transitions. [2021-06-05 21:01:41,501 INFO L78 Accepts]: Start accepts. Automaton has 13427 states and 71484 transitions. Word has length 33 [2021-06-05 21:01:41,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:41,501 INFO L482 AbstractCegarLoop]: Abstraction has 13427 states and 71484 transitions. [2021-06-05 21:01:41,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:41,501 INFO L276 IsEmpty]: Start isEmpty. Operand 13427 states and 71484 transitions. [2021-06-05 21:01:41,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:41,531 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:41,531 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:41,531 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 21:01:41,531 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:41,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:41,532 INFO L82 PathProgramCache]: Analyzing trace with hash -2134054961, now seen corresponding path program 14 times [2021-06-05 21:01:41,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:41,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404696431] [2021-06-05 21:01:41,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:41,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:41,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404696431] [2021-06-05 21:01:41,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404696431] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:41,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:41,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:41,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355823092] [2021-06-05 21:01:41,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:41,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:41,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:41,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:41,703 INFO L87 Difference]: Start difference. First operand 13427 states and 71484 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:41,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:41,952 INFO L93 Difference]: Finished difference Result 31701 states and 159450 transitions. [2021-06-05 21:01:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:41,952 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:41,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:42,053 INFO L225 Difference]: With dead ends: 31701 [2021-06-05 21:01:42,054 INFO L226 Difference]: Without dead ends: 30854 [2021-06-05 21:01:42,054 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:42,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30854 states. [2021-06-05 21:01:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30854 to 13315. [2021-06-05 21:01:43,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.330028541385008) internal successors, (70964), 13314 states have internal predecessors, (70964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70964 transitions. [2021-06-05 21:01:43,244 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70964 transitions. Word has length 33 [2021-06-05 21:01:43,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:43,244 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70964 transitions. [2021-06-05 21:01:43,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:43,244 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70964 transitions. [2021-06-05 21:01:43,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:43,272 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:43,272 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:43,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 21:01:43,272 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:43,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:43,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1895754797, now seen corresponding path program 15 times [2021-06-05 21:01:43,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:43,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284171007] [2021-06-05 21:01:43,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:43,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:43,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284171007] [2021-06-05 21:01:43,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284171007] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:43,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:43,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:43,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518249404] [2021-06-05 21:01:43,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:43,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:43,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:43,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:43,460 INFO L87 Difference]: Start difference. First operand 13315 states and 70964 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:43,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:43,695 INFO L93 Difference]: Finished difference Result 31960 states and 160657 transitions. [2021-06-05 21:01:43,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:43,696 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:43,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:43,960 INFO L225 Difference]: With dead ends: 31960 [2021-06-05 21:01:43,960 INFO L226 Difference]: Without dead ends: 31201 [2021-06-05 21:01:43,961 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:44,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31201 states. [2021-06-05 21:01:44,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31201 to 13503. [2021-06-05 21:01:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.316841949340838) internal successors, (71788), 13502 states have internal predecessors, (71788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:45,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71788 transitions. [2021-06-05 21:01:45,026 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71788 transitions. Word has length 33 [2021-06-05 21:01:45,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:45,026 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71788 transitions. [2021-06-05 21:01:45,026 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:45,026 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71788 transitions. [2021-06-05 21:01:45,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:45,054 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:45,054 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:45,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 21:01:45,055 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:45,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:45,055 INFO L82 PathProgramCache]: Analyzing trace with hash 247048143, now seen corresponding path program 16 times [2021-06-05 21:01:45,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:45,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642214345] [2021-06-05 21:01:45,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:45,331 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2021-06-05 21:01:45,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:45,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:45,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642214345] [2021-06-05 21:01:45,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642214345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:45,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:45,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:45,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314126281] [2021-06-05 21:01:45,403 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:45,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:45,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:45,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:45,404 INFO L87 Difference]: Start difference. First operand 13503 states and 71788 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:45,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:45,650 INFO L93 Difference]: Finished difference Result 32095 states and 161128 transitions. [2021-06-05 21:01:45,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:45,650 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:45,750 INFO L225 Difference]: With dead ends: 32095 [2021-06-05 21:01:45,751 INFO L226 Difference]: Without dead ends: 31013 [2021-06-05 21:01:45,751 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 332.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:46,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31013 states. [2021-06-05 21:01:46,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31013 to 13315. [2021-06-05 21:01:46,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.323418957488358) internal successors, (70876), 13314 states have internal predecessors, (70876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70876 transitions. [2021-06-05 21:01:46,968 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70876 transitions. Word has length 33 [2021-06-05 21:01:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:46,968 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70876 transitions. [2021-06-05 21:01:46,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:46,968 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70876 transitions. [2021-06-05 21:01:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:46,995 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:46,995 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:46,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 21:01:46,996 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:46,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:46,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1117999153, now seen corresponding path program 17 times [2021-06-05 21:01:46,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:46,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157922058] [2021-06-05 21:01:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:47,199 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 21:01:47,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:47,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157922058] [2021-06-05 21:01:47,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157922058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:47,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:47,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:47,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469811404] [2021-06-05 21:01:47,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:47,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:47,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:47,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:47,200 INFO L87 Difference]: Start difference. First operand 13315 states and 70876 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:47,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:47,460 INFO L93 Difference]: Finished difference Result 31900 states and 160333 transitions. [2021-06-05 21:01:47,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:47,460 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:47,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:47,561 INFO L225 Difference]: With dead ends: 31900 [2021-06-05 21:01:47,561 INFO L226 Difference]: Without dead ends: 31165 [2021-06-05 21:01:47,561 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 200.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:48,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31165 states. [2021-06-05 21:01:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31165 to 13491. [2021-06-05 21:01:48,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.312083024462565) internal successors, (71660), 13490 states have internal predecessors, (71660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71660 transitions. [2021-06-05 21:01:48,770 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71660 transitions. Word has length 33 [2021-06-05 21:01:48,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:48,771 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71660 transitions. [2021-06-05 21:01:48,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:48,771 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71660 transitions. [2021-06-05 21:01:48,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:48,800 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:48,800 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:48,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 21:01:48,800 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:48,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:48,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1669751891, now seen corresponding path program 18 times [2021-06-05 21:01:48,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:48,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336110872] [2021-06-05 21:01:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:49,000 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 21:01:49,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:49,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336110872] [2021-06-05 21:01:49,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336110872] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:49,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:49,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:49,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269264757] [2021-06-05 21:01:49,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:49,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:49,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:49,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:49,002 INFO L87 Difference]: Start difference. First operand 13491 states and 71660 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:49,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:49,256 INFO L93 Difference]: Finished difference Result 32059 states and 160908 transitions. [2021-06-05 21:01:49,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:49,257 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:49,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:49,360 INFO L225 Difference]: With dead ends: 32059 [2021-06-05 21:01:49,360 INFO L226 Difference]: Without dead ends: 30901 [2021-06-05 21:01:49,360 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 191.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:50,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30901 states. [2021-06-05 21:01:50,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30901 to 13227. [2021-06-05 21:01:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13227 states, 13226 states have (on average 5.32920006048692) internal successors, (70484), 13226 states have internal predecessors, (70484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:50,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 70484 transitions. [2021-06-05 21:01:50,601 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 70484 transitions. Word has length 33 [2021-06-05 21:01:50,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:50,601 INFO L482 AbstractCegarLoop]: Abstraction has 13227 states and 70484 transitions. [2021-06-05 21:01:50,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 70484 transitions. [2021-06-05 21:01:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:50,629 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:50,629 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:50,629 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 21:01:50,629 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:50,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:50,629 INFO L82 PathProgramCache]: Analyzing trace with hash -366287951, now seen corresponding path program 19 times [2021-06-05 21:01:50,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:50,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707426202] [2021-06-05 21:01:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:50,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:50,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:50,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707426202] [2021-06-05 21:01:50,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707426202] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:50,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:50,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:50,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254723140] [2021-06-05 21:01:50,792 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:50,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:50,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:50,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:50,793 INFO L87 Difference]: Start difference. First operand 13227 states and 70484 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:51,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:51,205 INFO L93 Difference]: Finished difference Result 31697 states and 159510 transitions. [2021-06-05 21:01:51,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:51,206 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:51,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:51,306 INFO L225 Difference]: With dead ends: 31697 [2021-06-05 21:01:51,306 INFO L226 Difference]: Without dead ends: 30946 [2021-06-05 21:01:51,306 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:52,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30946 states. [2021-06-05 21:01:52,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30946 to 13427. [2021-06-05 21:01:52,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13427 states, 13426 states have (on average 5.3210189185163115) internal successors, (71440), 13426 states have internal predecessors, (71440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:52,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13427 states to 13427 states and 71440 transitions. [2021-06-05 21:01:52,547 INFO L78 Accepts]: Start accepts. Automaton has 13427 states and 71440 transitions. Word has length 33 [2021-06-05 21:01:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:52,547 INFO L482 AbstractCegarLoop]: Abstraction has 13427 states and 71440 transitions. [2021-06-05 21:01:52,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:52,548 INFO L276 IsEmpty]: Start isEmpty. Operand 13427 states and 71440 transitions. [2021-06-05 21:01:52,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:52,578 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:52,578 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:52,578 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 21:01:52,578 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:52,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:52,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1213084913, now seen corresponding path program 20 times [2021-06-05 21:01:52,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:52,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441450515] [2021-06-05 21:01:52,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:52,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:01:52,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:52,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441450515] [2021-06-05 21:01:52,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441450515] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:52,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:52,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:52,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559502386] [2021-06-05 21:01:52,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:52,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:52,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:52,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:52,750 INFO L87 Difference]: Start difference. First operand 13427 states and 71440 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:52,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:52,993 INFO L93 Difference]: Finished difference Result 31681 states and 159334 transitions. [2021-06-05 21:01:52,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:52,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:52,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:53,090 INFO L225 Difference]: With dead ends: 31681 [2021-06-05 21:01:53,090 INFO L226 Difference]: Without dead ends: 30834 [2021-06-05 21:01:53,091 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:53,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30834 states. [2021-06-05 21:01:54,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30834 to 13315. [2021-06-05 21:01:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.326723749436683) internal successors, (70920), 13314 states have internal predecessors, (70920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70920 transitions. [2021-06-05 21:01:54,271 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70920 transitions. Word has length 33 [2021-06-05 21:01:54,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:54,272 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70920 transitions. [2021-06-05 21:01:54,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:54,272 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70920 transitions. [2021-06-05 21:01:54,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:54,299 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:54,299 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:54,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 21:01:54,299 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:54,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:54,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1975275535, now seen corresponding path program 21 times [2021-06-05 21:01:54,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:54,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055529436] [2021-06-05 21:01:54,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:54,476 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 21:01:54,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:54,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055529436] [2021-06-05 21:01:54,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055529436] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:54,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:54,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:54,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188984744] [2021-06-05 21:01:54,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:54,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:54,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:54,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:54,478 INFO L87 Difference]: Start difference. First operand 13315 states and 70920 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:54,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:54,734 INFO L93 Difference]: Finished difference Result 31928 states and 160497 transitions. [2021-06-05 21:01:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:54,734 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:54,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:54,833 INFO L225 Difference]: With dead ends: 31928 [2021-06-05 21:01:54,833 INFO L226 Difference]: Without dead ends: 31177 [2021-06-05 21:01:54,833 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 191.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:55,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31177 states. [2021-06-05 21:01:55,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31177 to 13499. [2021-06-05 21:01:55,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13499 states, 13498 states have (on average 5.314268780560083) internal successors, (71732), 13498 states have internal predecessors, (71732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13499 states to 13499 states and 71732 transitions. [2021-06-05 21:01:55,996 INFO L78 Accepts]: Start accepts. Automaton has 13499 states and 71732 transitions. Word has length 33 [2021-06-05 21:01:55,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:55,996 INFO L482 AbstractCegarLoop]: Abstraction has 13499 states and 71732 transitions. [2021-06-05 21:01:55,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 13499 states and 71732 transitions. [2021-06-05 21:01:56,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:56,024 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:56,024 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:56,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 21:01:56,024 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:56,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:56,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2030729231, now seen corresponding path program 22 times [2021-06-05 21:01:56,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:56,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433337662] [2021-06-05 21:01:56,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:56,196 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 21:01:56,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:56,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433337662] [2021-06-05 21:01:56,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433337662] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:56,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:56,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:56,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420187271] [2021-06-05 21:01:56,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:56,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:56,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:56,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:56,197 INFO L87 Difference]: Start difference. First operand 13499 states and 71732 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:56,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:56,417 INFO L93 Difference]: Finished difference Result 32071 states and 161000 transitions. [2021-06-05 21:01:56,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:56,418 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:56,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:56,530 INFO L225 Difference]: With dead ends: 32071 [2021-06-05 21:01:56,530 INFO L226 Difference]: Without dead ends: 30993 [2021-06-05 21:01:56,532 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:57,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30993 states. [2021-06-05 21:01:57,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30993 to 13315. [2021-06-05 21:01:57,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.3201141655400335) internal successors, (70832), 13314 states have internal predecessors, (70832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:57,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70832 transitions. [2021-06-05 21:01:57,751 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70832 transitions. Word has length 33 [2021-06-05 21:01:57,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:57,751 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70832 transitions. [2021-06-05 21:01:57,751 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:57,751 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70832 transitions. [2021-06-05 21:01:57,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:57,778 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:57,778 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:57,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 21:01:57,778 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:57,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:57,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1118527469, now seen corresponding path program 23 times [2021-06-05 21:01:57,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:57,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826235354] [2021-06-05 21:01:57,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:57,960 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 21:01:57,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:57,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826235354] [2021-06-05 21:01:57,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826235354] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:57,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:57,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:57,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288391828] [2021-06-05 21:01:57,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:57,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:57,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:57,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:57,961 INFO L87 Difference]: Start difference. First operand 13315 states and 70832 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:01:58,321 INFO L93 Difference]: Finished difference Result 31888 states and 160245 transitions. [2021-06-05 21:01:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:01:58,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:01:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:01:58,423 INFO L225 Difference]: With dead ends: 31888 [2021-06-05 21:01:58,424 INFO L226 Difference]: Without dead ends: 31153 [2021-06-05 21:01:58,424 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:01:59,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31153 states. [2021-06-05 21:01:59,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31153 to 13491. [2021-06-05 21:01:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.308821349147516) internal successors, (71616), 13490 states have internal predecessors, (71616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71616 transitions. [2021-06-05 21:01:59,653 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71616 transitions. Word has length 33 [2021-06-05 21:01:59,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:01:59,654 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71616 transitions. [2021-06-05 21:01:59,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:01:59,654 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71616 transitions. [2021-06-05 21:01:59,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:01:59,683 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:01:59,684 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:01:59,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 21:01:59,684 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:01:59,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:01:59,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1194061775, now seen corresponding path program 24 times [2021-06-05 21:01:59,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:01:59,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017528526] [2021-06-05 21:01:59,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:01:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:01:59,882 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 21:01:59,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:01:59,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017528526] [2021-06-05 21:01:59,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017528526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:01:59,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:01:59,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:01:59,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631520005] [2021-06-05 21:01:59,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:01:59,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:01:59,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:01:59,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:01:59,884 INFO L87 Difference]: Start difference. First operand 13491 states and 71616 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:00,107 INFO L93 Difference]: Finished difference Result 32047 states and 160820 transitions. [2021-06-05 21:02:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:00,207 INFO L225 Difference]: With dead ends: 32047 [2021-06-05 21:02:00,207 INFO L226 Difference]: Without dead ends: 30845 [2021-06-05 21:02:00,208 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 188.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30845 states. [2021-06-05 21:02:01,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30845 to 13183. [2021-06-05 21:02:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13182 states have (on average 5.333788499468973) internal successors, (70310), 13182 states have internal predecessors, (70310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70310 transitions. [2021-06-05 21:02:01,417 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70310 transitions. Word has length 33 [2021-06-05 21:02:01,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:01,417 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70310 transitions. [2021-06-05 21:02:01,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:01,417 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70310 transitions. [2021-06-05 21:02:01,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:01,446 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:01,446 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:01,446 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 21:02:01,446 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:01,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:01,446 INFO L82 PathProgramCache]: Analyzing trace with hash -94747699, now seen corresponding path program 25 times [2021-06-05 21:02:01,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:01,447 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612776997] [2021-06-05 21:02:01,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:01,598 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 21:02:01,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:01,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612776997] [2021-06-05 21:02:01,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612776997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:01,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:01,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:01,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549261459] [2021-06-05 21:02:01,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:01,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:01,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:01,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:01,599 INFO L87 Difference]: Start difference. First operand 13183 states and 70310 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:01,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:01,839 INFO L93 Difference]: Finished difference Result 32010 states and 160923 transitions. [2021-06-05 21:02:01,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:01,839 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:01,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:01,937 INFO L225 Difference]: With dead ends: 32010 [2021-06-05 21:02:01,938 INFO L226 Difference]: Without dead ends: 31251 [2021-06-05 21:02:01,938 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:02,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31251 states. [2021-06-05 21:02:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31251 to 13457. [2021-06-05 21:02:03,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13457 states, 13456 states have (on average 5.32647146254459) internal successors, (71673), 13456 states have internal predecessors, (71673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13457 states to 13457 states and 71673 transitions. [2021-06-05 21:02:03,094 INFO L78 Accepts]: Start accepts. Automaton has 13457 states and 71673 transitions. Word has length 33 [2021-06-05 21:02:03,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:03,094 INFO L482 AbstractCegarLoop]: Abstraction has 13457 states and 71673 transitions. [2021-06-05 21:02:03,094 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:03,094 INFO L276 IsEmpty]: Start isEmpty. Operand 13457 states and 71673 transitions. [2021-06-05 21:02:03,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:03,122 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:03,122 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:03,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 21:02:03,122 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:03,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:03,122 INFO L82 PathProgramCache]: Analyzing trace with hash 986314927, now seen corresponding path program 26 times [2021-06-05 21:02:03,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:03,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090737297] [2021-06-05 21:02:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:03,289 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 21:02:03,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:03,290 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090737297] [2021-06-05 21:02:03,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090737297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:03,290 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:03,290 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:03,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871591371] [2021-06-05 21:02:03,290 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:03,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:03,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:03,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:03,291 INFO L87 Difference]: Start difference. First operand 13457 states and 71673 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:03,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:03,536 INFO L93 Difference]: Finished difference Result 32002 states and 160775 transitions. [2021-06-05 21:02:03,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:03,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:03,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:03,810 INFO L225 Difference]: With dead ends: 32002 [2021-06-05 21:02:03,810 INFO L226 Difference]: Without dead ends: 31131 [2021-06-05 21:02:03,813 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:04,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31131 states. [2021-06-05 21:02:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31131 to 13337. [2021-06-05 21:02:04,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13337 states, 13336 states have (on average 5.333008398320336) internal successors, (71121), 13336 states have internal predecessors, (71121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:04,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13337 states to 13337 states and 71121 transitions. [2021-06-05 21:02:04,852 INFO L78 Accepts]: Start accepts. Automaton has 13337 states and 71121 transitions. Word has length 33 [2021-06-05 21:02:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:04,852 INFO L482 AbstractCegarLoop]: Abstraction has 13337 states and 71121 transitions. [2021-06-05 21:02:04,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:04,852 INFO L276 IsEmpty]: Start isEmpty. Operand 13337 states and 71121 transitions. [2021-06-05 21:02:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:04,880 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:04,880 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:04,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 21:02:04,880 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:04,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:04,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1624316877, now seen corresponding path program 27 times [2021-06-05 21:02:04,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:04,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511639318] [2021-06-05 21:02:04,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:05,035 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 21:02:05,036 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:05,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511639318] [2021-06-05 21:02:05,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511639318] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:05,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:05,036 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:05,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245448500] [2021-06-05 21:02:05,036 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:05,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:05,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:05,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:05,037 INFO L87 Difference]: Start difference. First operand 13337 states and 71121 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:05,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:05,450 INFO L93 Difference]: Finished difference Result 32221 states and 161822 transitions. [2021-06-05 21:02:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:05,450 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:05,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:05,553 INFO L225 Difference]: With dead ends: 32221 [2021-06-05 21:02:05,553 INFO L226 Difference]: Without dead ends: 31462 [2021-06-05 21:02:05,553 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:06,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31462 states. [2021-06-05 21:02:06,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31462 to 13525. [2021-06-05 21:02:06,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13525 states, 13524 states have (on average 5.319801833776989) internal successors, (71945), 13524 states have internal predecessors, (71945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:06,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13525 states to 13525 states and 71945 transitions. [2021-06-05 21:02:06,792 INFO L78 Accepts]: Start accepts. Automaton has 13525 states and 71945 transitions. Word has length 33 [2021-06-05 21:02:06,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:06,792 INFO L482 AbstractCegarLoop]: Abstraction has 13525 states and 71945 transitions. [2021-06-05 21:02:06,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 13525 states and 71945 transitions. [2021-06-05 21:02:06,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:06,821 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:06,821 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:06,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 21:02:06,821 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:06,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:06,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1900878899, now seen corresponding path program 28 times [2021-06-05 21:02:06,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:06,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58798389] [2021-06-05 21:02:06,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:06,995 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 21:02:06,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:06,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58798389] [2021-06-05 21:02:06,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58798389] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:06,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:06,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:06,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550329043] [2021-06-05 21:02:06,996 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:06,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:06,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:06,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:06,997 INFO L87 Difference]: Start difference. First operand 13525 states and 71945 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:07,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:07,229 INFO L93 Difference]: Finished difference Result 32356 states and 162293 transitions. [2021-06-05 21:02:07,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:07,229 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:07,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:07,334 INFO L225 Difference]: With dead ends: 32356 [2021-06-05 21:02:07,334 INFO L226 Difference]: Without dead ends: 31274 [2021-06-05 21:02:07,334 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:08,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31274 states. [2021-06-05 21:02:08,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31274 to 13337. [2021-06-05 21:02:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13337 states, 13336 states have (on average 5.326109778044391) internal successors, (71029), 13336 states have internal predecessors, (71029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13337 states to 13337 states and 71029 transitions. [2021-06-05 21:02:08,550 INFO L78 Accepts]: Start accepts. Automaton has 13337 states and 71029 transitions. Word has length 33 [2021-06-05 21:02:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:08,550 INFO L482 AbstractCegarLoop]: Abstraction has 13337 states and 71029 transitions. [2021-06-05 21:02:08,550 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 13337 states and 71029 transitions. [2021-06-05 21:02:08,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:08,579 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:08,579 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:08,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 21:02:08,579 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:08,579 INFO L82 PathProgramCache]: Analyzing trace with hash 2012321839, now seen corresponding path program 29 times [2021-06-05 21:02:08,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:08,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339903638] [2021-06-05 21:02:08,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:08,744 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 21:02:08,744 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:08,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339903638] [2021-06-05 21:02:08,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339903638] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:08,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:08,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:08,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106778291] [2021-06-05 21:02:08,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:08,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:08,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:08,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:08,745 INFO L87 Difference]: Start difference. First operand 13337 states and 71029 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:08,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:08,996 INFO L93 Difference]: Finished difference Result 32201 states and 161658 transitions. [2021-06-05 21:02:08,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:08,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:09,096 INFO L225 Difference]: With dead ends: 32201 [2021-06-05 21:02:09,096 INFO L226 Difference]: Without dead ends: 31450 [2021-06-05 21:02:09,097 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:09,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31450 states. [2021-06-05 21:02:10,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31450 to 13521. [2021-06-05 21:02:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13521 states, 13520 states have (on average 5.313683431952663) internal successors, (71841), 13520 states have internal predecessors, (71841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:10,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 71841 transitions. [2021-06-05 21:02:10,314 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 71841 transitions. Word has length 33 [2021-06-05 21:02:10,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:10,314 INFO L482 AbstractCegarLoop]: Abstraction has 13521 states and 71841 transitions. [2021-06-05 21:02:10,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:10,314 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 71841 transitions. [2021-06-05 21:02:10,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:10,342 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:10,342 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:10,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 21:02:10,343 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:10,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:10,343 INFO L82 PathProgramCache]: Analyzing trace with hash 191286413, now seen corresponding path program 30 times [2021-06-05 21:02:10,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:10,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186718700] [2021-06-05 21:02:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:10,518 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 21:02:10,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:10,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186718700] [2021-06-05 21:02:10,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186718700] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:10,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:10,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:10,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653999504] [2021-06-05 21:02:10,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:10,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:10,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:10,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:10,520 INFO L87 Difference]: Start difference. First operand 13521 states and 71841 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:10,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:10,752 INFO L93 Difference]: Finished difference Result 32344 states and 162161 transitions. [2021-06-05 21:02:10,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:10,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:10,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:11,040 INFO L225 Difference]: With dead ends: 32344 [2021-06-05 21:02:11,040 INFO L226 Difference]: Without dead ends: 31174 [2021-06-05 21:02:11,040 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:11,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31174 states. [2021-06-05 21:02:12,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31174 to 13245. [2021-06-05 21:02:12,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13245 states, 13244 states have (on average 5.33245243128964) internal successors, (70623), 13244 states have internal predecessors, (70623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:12,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 70623 transitions. [2021-06-05 21:02:12,070 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 70623 transitions. Word has length 33 [2021-06-05 21:02:12,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:12,070 INFO L482 AbstractCegarLoop]: Abstraction has 13245 states and 70623 transitions. [2021-06-05 21:02:12,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:12,071 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 70623 transitions. [2021-06-05 21:02:12,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:12,097 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:12,098 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:12,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 21:02:12,098 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:12,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:12,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1214112333, now seen corresponding path program 31 times [2021-06-05 21:02:12,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:12,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839529650] [2021-06-05 21:02:12,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:12,235 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 21:02:12,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:12,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839529650] [2021-06-05 21:02:12,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839529650] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:12,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:12,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:12,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439928724] [2021-06-05 21:02:12,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:12,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:12,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:12,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:12,237 INFO L87 Difference]: Start difference. First operand 13245 states and 70623 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:12,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:12,683 INFO L93 Difference]: Finished difference Result 31721 states and 159483 transitions. [2021-06-05 21:02:12,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:12,683 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:12,786 INFO L225 Difference]: With dead ends: 31721 [2021-06-05 21:02:12,786 INFO L226 Difference]: Without dead ends: 30962 [2021-06-05 21:02:12,786 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30962 states. [2021-06-05 21:02:13,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30962 to 13425. [2021-06-05 21:02:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13425 states, 13424 states have (on average 5.322631108462455) internal successors, (71451), 13424 states have internal predecessors, (71451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:14,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13425 states to 13425 states and 71451 transitions. [2021-06-05 21:02:14,048 INFO L78 Accepts]: Start accepts. Automaton has 13425 states and 71451 transitions. Word has length 33 [2021-06-05 21:02:14,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:14,048 INFO L482 AbstractCegarLoop]: Abstraction has 13425 states and 71451 transitions. [2021-06-05 21:02:14,048 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:14,048 INFO L276 IsEmpty]: Start isEmpty. Operand 13425 states and 71451 transitions. [2021-06-05 21:02:14,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:14,076 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:14,076 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:14,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 21:02:14,076 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:14,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1999792337, now seen corresponding path program 32 times [2021-06-05 21:02:14,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:14,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374381548] [2021-06-05 21:02:14,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:14,204 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 21:02:14,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:14,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374381548] [2021-06-05 21:02:14,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374381548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:14,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:14,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:14,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997119830] [2021-06-05 21:02:14,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:14,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:14,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:14,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:14,205 INFO L87 Difference]: Start difference. First operand 13425 states and 71451 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:14,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:14,442 INFO L93 Difference]: Finished difference Result 31713 states and 159335 transitions. [2021-06-05 21:02:14,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:14,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:14,543 INFO L225 Difference]: With dead ends: 31713 [2021-06-05 21:02:14,543 INFO L226 Difference]: Without dead ends: 30842 [2021-06-05 21:02:14,543 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 149.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:15,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30842 states. [2021-06-05 21:02:15,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30842 to 13305. [2021-06-05 21:02:15,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13305 states, 13304 states have (on average 5.32914912808178) internal successors, (70899), 13304 states have internal predecessors, (70899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:15,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13305 states to 13305 states and 70899 transitions. [2021-06-05 21:02:15,784 INFO L78 Accepts]: Start accepts. Automaton has 13305 states and 70899 transitions. Word has length 33 [2021-06-05 21:02:15,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:15,784 INFO L482 AbstractCegarLoop]: Abstraction has 13305 states and 70899 transitions. [2021-06-05 21:02:15,784 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:15,784 INFO L276 IsEmpty]: Start isEmpty. Operand 13305 states and 70899 transitions. [2021-06-05 21:02:15,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:15,812 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:15,812 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:15,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 21:02:15,812 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:15,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:15,812 INFO L82 PathProgramCache]: Analyzing trace with hash -509439505, now seen corresponding path program 33 times [2021-06-05 21:02:15,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:15,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225188717] [2021-06-05 21:02:15,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:15,939 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 21:02:15,940 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:15,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225188717] [2021-06-05 21:02:15,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225188717] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:15,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:15,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:15,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728830912] [2021-06-05 21:02:15,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:15,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:15,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:15,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:15,941 INFO L87 Difference]: Start difference. First operand 13305 states and 70899 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:16,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:16,158 INFO L93 Difference]: Finished difference Result 31739 states and 159484 transitions. [2021-06-05 21:02:16,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:16,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:16,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:16,261 INFO L225 Difference]: With dead ends: 31739 [2021-06-05 21:02:16,261 INFO L226 Difference]: Without dead ends: 30980 [2021-06-05 21:02:16,261 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 136.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:17,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30980 states. [2021-06-05 21:02:17,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30980 to 13429. [2021-06-05 21:02:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13429 states, 13428 states have (on average 5.317470956210903) internal successors, (71403), 13428 states have internal predecessors, (71403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 71403 transitions. [2021-06-05 21:02:17,486 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 71403 transitions. Word has length 33 [2021-06-05 21:02:17,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:17,486 INFO L482 AbstractCegarLoop]: Abstraction has 13429 states and 71403 transitions. [2021-06-05 21:02:17,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:17,486 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 71403 transitions. [2021-06-05 21:02:17,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:17,514 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:17,514 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:17,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 21:02:17,514 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:17,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:17,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1998146031, now seen corresponding path program 34 times [2021-06-05 21:02:17,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:17,514 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774731558] [2021-06-05 21:02:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:17,665 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 21:02:17,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:17,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774731558] [2021-06-05 21:02:17,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774731558] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:17,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:17,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:17,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850566494] [2021-06-05 21:02:17,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:17,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:17,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:17,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:17,666 INFO L87 Difference]: Start difference. First operand 13429 states and 71403 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:17,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:17,914 INFO L93 Difference]: Finished difference Result 31745 states and 159377 transitions. [2021-06-05 21:02:17,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:17,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:17,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:18,012 INFO L225 Difference]: With dead ends: 31745 [2021-06-05 21:02:18,012 INFO L226 Difference]: Without dead ends: 30856 [2021-06-05 21:02:18,013 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:18,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30856 states. [2021-06-05 21:02:19,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30856 to 13305. [2021-06-05 21:02:19,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13305 states, 13304 states have (on average 5.324639206253758) internal successors, (70839), 13304 states have internal predecessors, (70839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13305 states to 13305 states and 70839 transitions. [2021-06-05 21:02:19,264 INFO L78 Accepts]: Start accepts. Automaton has 13305 states and 70839 transitions. Word has length 33 [2021-06-05 21:02:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:19,264 INFO L482 AbstractCegarLoop]: Abstraction has 13305 states and 70839 transitions. [2021-06-05 21:02:19,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 13305 states and 70839 transitions. [2021-06-05 21:02:19,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:19,292 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:19,292 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:19,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 21:02:19,293 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:19,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:19,294 INFO L82 PathProgramCache]: Analyzing trace with hash -121434543, now seen corresponding path program 35 times [2021-06-05 21:02:19,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:19,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605845103] [2021-06-05 21:02:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:19,442 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 21:02:19,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:19,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605845103] [2021-06-05 21:02:19,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605845103] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:19,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:19,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:19,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157465803] [2021-06-05 21:02:19,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:19,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:19,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:19,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:19,443 INFO L87 Difference]: Start difference. First operand 13305 states and 70839 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:19,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:19,957 INFO L93 Difference]: Finished difference Result 31719 states and 159352 transitions. [2021-06-05 21:02:19,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:19,957 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:20,056 INFO L225 Difference]: With dead ends: 31719 [2021-06-05 21:02:20,057 INFO L226 Difference]: Without dead ends: 30968 [2021-06-05 21:02:20,057 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:20,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30968 states. [2021-06-05 21:02:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30968 to 13425. [2021-06-05 21:02:21,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13425 states, 13424 states have (on average 5.31369189511323) internal successors, (71331), 13424 states have internal predecessors, (71331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:21,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13425 states to 13425 states and 71331 transitions. [2021-06-05 21:02:21,139 INFO L78 Accepts]: Start accepts. Automaton has 13425 states and 71331 transitions. Word has length 33 [2021-06-05 21:02:21,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:21,139 INFO L482 AbstractCegarLoop]: Abstraction has 13425 states and 71331 transitions. [2021-06-05 21:02:21,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:21,139 INFO L276 IsEmpty]: Start isEmpty. Operand 13425 states and 71331 transitions. [2021-06-05 21:02:21,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:21,168 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:21,168 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:21,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 21:02:21,168 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:21,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:21,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1083214639, now seen corresponding path program 36 times [2021-06-05 21:02:21,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:21,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755292516] [2021-06-05 21:02:21,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:21,363 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-06-05 21:02:21,462 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 21:02:21,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:21,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755292516] [2021-06-05 21:02:21,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755292516] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:21,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:21,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:21,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113308154] [2021-06-05 21:02:21,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:21,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:21,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:21,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:21,463 INFO L87 Difference]: Start difference. First operand 13425 states and 71331 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:21,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:21,730 INFO L93 Difference]: Finished difference Result 31733 states and 159277 transitions. [2021-06-05 21:02:21,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:21,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:21,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:21,832 INFO L225 Difference]: With dead ends: 31733 [2021-06-05 21:02:21,832 INFO L226 Difference]: Without dead ends: 30788 [2021-06-05 21:02:21,832 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:22,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30788 states. [2021-06-05 21:02:22,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30788 to 13245. [2021-06-05 21:02:22,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13245 states, 13244 states have (on average 5.3301872546058595) internal successors, (70593), 13244 states have internal predecessors, (70593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 70593 transitions. [2021-06-05 21:02:23,033 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 70593 transitions. Word has length 33 [2021-06-05 21:02:23,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:23,034 INFO L482 AbstractCegarLoop]: Abstraction has 13245 states and 70593 transitions. [2021-06-05 21:02:23,034 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:23,034 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 70593 transitions. [2021-06-05 21:02:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:23,061 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:23,061 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:23,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 21:02:23,061 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:23,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:23,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1347782161, now seen corresponding path program 37 times [2021-06-05 21:02:23,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:23,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943031966] [2021-06-05 21:02:23,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:02:23,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:23,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943031966] [2021-06-05 21:02:23,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943031966] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:23,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:23,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:23,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249317410] [2021-06-05 21:02:23,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:23,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:23,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:23,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:23,229 INFO L87 Difference]: Start difference. First operand 13245 states and 70593 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:23,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:23,469 INFO L93 Difference]: Finished difference Result 32344 states and 162302 transitions. [2021-06-05 21:02:23,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:23,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:23,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:23,569 INFO L225 Difference]: With dead ends: 32344 [2021-06-05 21:02:23,569 INFO L226 Difference]: Without dead ends: 31585 [2021-06-05 21:02:23,569 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:24,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31585 states. [2021-06-05 21:02:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31585 to 13559. [2021-06-05 21:02:24,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13559 states, 13558 states have (on average 5.316565865171854) internal successors, (72082), 13558 states have internal predecessors, (72082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:24,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13559 states to 13559 states and 72082 transitions. [2021-06-05 21:02:24,766 INFO L78 Accepts]: Start accepts. Automaton has 13559 states and 72082 transitions. Word has length 33 [2021-06-05 21:02:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:24,766 INFO L482 AbstractCegarLoop]: Abstraction has 13559 states and 72082 transitions. [2021-06-05 21:02:24,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:24,767 INFO L276 IsEmpty]: Start isEmpty. Operand 13559 states and 72082 transitions. [2021-06-05 21:02:24,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:24,794 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:24,794 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:24,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 21:02:24,795 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:24,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:24,795 INFO L82 PathProgramCache]: Analyzing trace with hash -578010641, now seen corresponding path program 38 times [2021-06-05 21:02:24,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:24,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724128318] [2021-06-05 21:02:24,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:02:24,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:24,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724128318] [2021-06-05 21:02:24,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724128318] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:24,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:24,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:24,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591050311] [2021-06-05 21:02:24,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:24,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:24,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:24,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:24,954 INFO L87 Difference]: Start difference. First operand 13559 states and 72082 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:25,164 INFO L93 Difference]: Finished difference Result 32479 states and 162773 transitions. [2021-06-05 21:02:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:25,165 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:25,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:25,268 INFO L225 Difference]: With dead ends: 32479 [2021-06-05 21:02:25,268 INFO L226 Difference]: Without dead ends: 31397 [2021-06-05 21:02:25,268 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:26,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31397 states. [2021-06-05 21:02:26,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31397 to 13371. [2021-06-05 21:02:26,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.3226626776365) internal successors, (71164), 13370 states have internal predecessors, (71164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:26,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71164 transitions. [2021-06-05 21:02:26,490 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71164 transitions. Word has length 33 [2021-06-05 21:02:26,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:26,490 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71164 transitions. [2021-06-05 21:02:26,490 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:26,490 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71164 transitions. [2021-06-05 21:02:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:26,518 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:26,519 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:26,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 21:02:26,519 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:26,519 INFO L82 PathProgramCache]: Analyzing trace with hash 924123597, now seen corresponding path program 39 times [2021-06-05 21:02:26,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:26,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529468800] [2021-06-05 21:02:26,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:26,649 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 21:02:26,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:26,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529468800] [2021-06-05 21:02:26,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529468800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:26,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:26,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:26,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318591559] [2021-06-05 21:02:26,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:26,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:26,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:26,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:26,650 INFO L87 Difference]: Start difference. First operand 13371 states and 71164 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:26,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:26,888 INFO L93 Difference]: Finished difference Result 32151 states and 161310 transitions. [2021-06-05 21:02:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:26,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:26,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:26,991 INFO L225 Difference]: With dead ends: 32151 [2021-06-05 21:02:26,991 INFO L226 Difference]: Without dead ends: 31392 [2021-06-05 21:02:26,991 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:27,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31392 states. [2021-06-05 21:02:28,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31392 to 13495. [2021-06-05 21:02:28,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.311101230176375) internal successors, (71668), 13494 states have internal predecessors, (71668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:28,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71668 transitions. [2021-06-05 21:02:28,239 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71668 transitions. Word has length 33 [2021-06-05 21:02:28,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:28,239 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71668 transitions. [2021-06-05 21:02:28,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71668 transitions. [2021-06-05 21:02:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:28,268 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:28,268 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:28,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 21:02:28,268 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:28,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:28,269 INFO L82 PathProgramCache]: Analyzing trace with hash 456794607, now seen corresponding path program 40 times [2021-06-05 21:02:28,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:28,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687857764] [2021-06-05 21:02:28,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:28,417 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 21:02:28,418 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:28,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687857764] [2021-06-05 21:02:28,418 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687857764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:28,418 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:28,418 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:28,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467460619] [2021-06-05 21:02:28,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:28,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:28,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:28,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:28,418 INFO L87 Difference]: Start difference. First operand 13495 states and 71668 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:28,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:28,811 INFO L93 Difference]: Finished difference Result 32157 states and 161203 transitions. [2021-06-05 21:02:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:28,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:28,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:28,919 INFO L225 Difference]: With dead ends: 32157 [2021-06-05 21:02:28,919 INFO L226 Difference]: Without dead ends: 31268 [2021-06-05 21:02:28,920 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:29,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31268 states. [2021-06-05 21:02:29,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31268 to 13371. [2021-06-05 21:02:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.318025430067315) internal successors, (71102), 13370 states have internal predecessors, (71102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:30,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71102 transitions. [2021-06-05 21:02:30,010 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71102 transitions. Word has length 33 [2021-06-05 21:02:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:30,010 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71102 transitions. [2021-06-05 21:02:30,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:30,011 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71102 transitions. [2021-06-05 21:02:30,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:30,157 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:30,157 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:30,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 21:02:30,157 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:30,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:30,157 INFO L82 PathProgramCache]: Analyzing trace with hash -264963601, now seen corresponding path program 41 times [2021-06-05 21:02:30,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:30,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819429368] [2021-06-05 21:02:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:30,307 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 21:02:30,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:30,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819429368] [2021-06-05 21:02:30,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819429368] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:30,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:30,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:30,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975042207] [2021-06-05 21:02:30,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:30,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:30,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:30,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:30,309 INFO L87 Difference]: Start difference. First operand 13371 states and 71102 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:30,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:30,536 INFO L93 Difference]: Finished difference Result 32552 states and 163024 transitions. [2021-06-05 21:02:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:30,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:30,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:30,638 INFO L225 Difference]: With dead ends: 32552 [2021-06-05 21:02:30,639 INFO L226 Difference]: Without dead ends: 31658 [2021-06-05 21:02:30,639 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:31,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31658 states. [2021-06-05 21:02:31,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31658 to 13626. [2021-06-05 21:02:31,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13626 states, 13625 states have (on average 5.293577981651376) internal successors, (72125), 13625 states have internal predecessors, (72125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13626 states to 13626 states and 72125 transitions. [2021-06-05 21:02:31,832 INFO L78 Accepts]: Start accepts. Automaton has 13626 states and 72125 transitions. Word has length 33 [2021-06-05 21:02:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:31,832 INFO L482 AbstractCegarLoop]: Abstraction has 13626 states and 72125 transitions. [2021-06-05 21:02:31,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:31,832 INFO L276 IsEmpty]: Start isEmpty. Operand 13626 states and 72125 transitions. [2021-06-05 21:02:31,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:31,860 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:31,860 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:31,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 21:02:31,860 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:31,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:31,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1111760563, now seen corresponding path program 42 times [2021-06-05 21:02:31,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:31,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384408423] [2021-06-05 21:02:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:31,993 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 21:02:31,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:31,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384408423] [2021-06-05 21:02:31,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384408423] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:31,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:31,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:31,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283329834] [2021-06-05 21:02:31,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:31,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:31,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:31,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:31,994 INFO L87 Difference]: Start difference. First operand 13626 states and 72125 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:32,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:32,232 INFO L93 Difference]: Finished difference Result 32423 states and 162255 transitions. [2021-06-05 21:02:32,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:32,232 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:32,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:32,330 INFO L225 Difference]: With dead ends: 32423 [2021-06-05 21:02:32,330 INFO L226 Difference]: Without dead ends: 31277 [2021-06-05 21:02:32,331 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31277 states. [2021-06-05 21:02:33,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31277 to 13245. [2021-06-05 21:02:33,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13245 states, 13244 states have (on average 5.325505889459378) internal successors, (70531), 13244 states have internal predecessors, (70531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:33,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 70531 transitions. [2021-06-05 21:02:33,507 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 70531 transitions. Word has length 33 [2021-06-05 21:02:33,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:33,508 INFO L482 AbstractCegarLoop]: Abstraction has 13245 states and 70531 transitions. [2021-06-05 21:02:33,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:33,508 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 70531 transitions. [2021-06-05 21:02:33,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:33,534 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:33,534 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:33,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 21:02:33,535 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:33,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:33,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1268261423, now seen corresponding path program 43 times [2021-06-05 21:02:33,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:33,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973161203] [2021-06-05 21:02:33,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:33,686 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 21:02:33,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:33,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973161203] [2021-06-05 21:02:33,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973161203] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:33,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:33,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:33,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57390704] [2021-06-05 21:02:33,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:33,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:33,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:33,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:33,687 INFO L87 Difference]: Start difference. First operand 13245 states and 70531 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:33,916 INFO L93 Difference]: Finished difference Result 32306 states and 162099 transitions. [2021-06-05 21:02:33,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:33,916 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:34,016 INFO L225 Difference]: With dead ends: 32306 [2021-06-05 21:02:34,016 INFO L226 Difference]: Without dead ends: 31555 [2021-06-05 21:02:34,016 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:34,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31555 states. [2021-06-05 21:02:35,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31555 to 13553. [2021-06-05 21:02:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13553 states, 13552 states have (on average 5.312795159386068) internal successors, (71999), 13552 states have internal predecessors, (71999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13553 states to 13553 states and 71999 transitions. [2021-06-05 21:02:35,214 INFO L78 Accepts]: Start accepts. Automaton has 13553 states and 71999 transitions. Word has length 33 [2021-06-05 21:02:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:35,214 INFO L482 AbstractCegarLoop]: Abstraction has 13553 states and 71999 transitions. [2021-06-05 21:02:35,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 13553 states and 71999 transitions. [2021-06-05 21:02:35,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:35,243 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:35,243 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:35,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 21:02:35,243 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:35,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:35,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1205670447, now seen corresponding path program 44 times [2021-06-05 21:02:35,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:35,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230675035] [2021-06-05 21:02:35,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:02:35,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:35,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230675035] [2021-06-05 21:02:35,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230675035] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:35,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:35,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:35,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942010465] [2021-06-05 21:02:35,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:35,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:35,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:35,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:35,417 INFO L87 Difference]: Start difference. First operand 13553 states and 71999 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:35,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:35,638 INFO L93 Difference]: Finished difference Result 32449 states and 162602 transitions. [2021-06-05 21:02:35,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:35,639 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:35,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:35,925 INFO L225 Difference]: With dead ends: 32449 [2021-06-05 21:02:35,925 INFO L226 Difference]: Without dead ends: 31371 [2021-06-05 21:02:35,926 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31371 states. [2021-06-05 21:02:36,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31371 to 13369. [2021-06-05 21:02:36,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13368 states have (on average 5.318297426690604) internal successors, (71095), 13368 states have internal predecessors, (71095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71095 transitions. [2021-06-05 21:02:36,973 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71095 transitions. Word has length 33 [2021-06-05 21:02:36,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:36,973 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71095 transitions. [2021-06-05 21:02:36,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:36,973 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71095 transitions. [2021-06-05 21:02:37,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:37,002 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:37,002 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:37,002 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 21:02:37,002 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:37,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:37,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1003644335, now seen corresponding path program 45 times [2021-06-05 21:02:37,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:37,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312192322] [2021-06-05 21:02:37,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:37,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:02:37,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:37,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312192322] [2021-06-05 21:02:37,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312192322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:37,165 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:37,165 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:37,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315400482] [2021-06-05 21:02:37,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:37,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:37,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:37,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:37,166 INFO L87 Difference]: Start difference. First operand 13369 states and 71095 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:37,473 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2021-06-05 21:02:37,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:37,581 INFO L93 Difference]: Finished difference Result 32113 states and 161109 transitions. [2021-06-05 21:02:37,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:37,581 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:37,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:37,689 INFO L225 Difference]: With dead ends: 32113 [2021-06-05 21:02:37,689 INFO L226 Difference]: Without dead ends: 31362 [2021-06-05 21:02:37,689 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 360.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:38,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31362 states. [2021-06-05 21:02:38,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31362 to 13489. [2021-06-05 21:02:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13489 states, 13488 states have (on average 5.307458481613286) internal successors, (71587), 13488 states have internal predecessors, (71587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 71587 transitions. [2021-06-05 21:02:38,991 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 71587 transitions. Word has length 33 [2021-06-05 21:02:38,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:38,991 INFO L482 AbstractCegarLoop]: Abstraction has 13489 states and 71587 transitions. [2021-06-05 21:02:38,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 71587 transitions. [2021-06-05 21:02:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:39,023 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:39,023 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:39,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 21:02:39,023 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:39,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:39,023 INFO L82 PathProgramCache]: Analyzing trace with hash -766621009, now seen corresponding path program 46 times [2021-06-05 21:02:39,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:39,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050708350] [2021-06-05 21:02:39,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:39,192 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 21:02:39,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:39,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050708350] [2021-06-05 21:02:39,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050708350] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:39,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:39,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:39,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418281079] [2021-06-05 21:02:39,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:39,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:39,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:39,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:39,193 INFO L87 Difference]: Start difference. First operand 13489 states and 71587 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:39,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:39,446 INFO L93 Difference]: Finished difference Result 32127 states and 161034 transitions. [2021-06-05 21:02:39,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:39,447 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:39,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:39,546 INFO L225 Difference]: With dead ends: 32127 [2021-06-05 21:02:39,546 INFO L226 Difference]: Without dead ends: 31242 [2021-06-05 21:02:39,547 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:40,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31242 states. [2021-06-05 21:02:40,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31242 to 13369. [2021-06-05 21:02:40,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13368 states have (on average 5.313809096349491) internal successors, (71035), 13368 states have internal predecessors, (71035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:40,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71035 transitions. [2021-06-05 21:02:40,763 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71035 transitions. Word has length 33 [2021-06-05 21:02:40,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:40,763 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71035 transitions. [2021-06-05 21:02:40,763 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:40,763 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71035 transitions. [2021-06-05 21:02:40,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:40,791 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:40,791 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:40,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 21:02:40,791 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:40,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:40,791 INFO L82 PathProgramCache]: Analyzing trace with hash -767635571, now seen corresponding path program 47 times [2021-06-05 21:02:40,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:40,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929923866] [2021-06-05 21:02:40,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:40,943 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 21:02:40,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:40,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929923866] [2021-06-05 21:02:40,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929923866] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:40,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:40,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:40,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538496442] [2021-06-05 21:02:40,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:40,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:40,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:40,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:40,944 INFO L87 Difference]: Start difference. First operand 13369 states and 71035 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:41,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:41,185 INFO L93 Difference]: Finished difference Result 32534 states and 162897 transitions. [2021-06-05 21:02:41,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:41,186 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:41,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:41,286 INFO L225 Difference]: With dead ends: 32534 [2021-06-05 21:02:41,286 INFO L226 Difference]: Without dead ends: 31640 [2021-06-05 21:02:41,287 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:42,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31640 states. [2021-06-05 21:02:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31640 to 13624. [2021-06-05 21:02:42,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13624 states, 13623 states have (on average 5.289436981575277) internal successors, (72058), 13623 states have internal predecessors, (72058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13624 states to 13624 states and 72058 transitions. [2021-06-05 21:02:42,480 INFO L78 Accepts]: Start accepts. Automaton has 13624 states and 72058 transitions. Word has length 33 [2021-06-05 21:02:42,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:42,481 INFO L482 AbstractCegarLoop]: Abstraction has 13624 states and 72058 transitions. [2021-06-05 21:02:42,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 13624 states and 72058 transitions. [2021-06-05 21:02:42,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:42,509 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:42,509 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:42,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 21:02:42,509 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:42,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:42,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1248537617, now seen corresponding path program 48 times [2021-06-05 21:02:42,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:42,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764372471] [2021-06-05 21:02:42,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:42,659 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 21:02:42,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:42,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764372471] [2021-06-05 21:02:42,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764372471] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:42,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:42,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:42,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613821273] [2021-06-05 21:02:42,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:42,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:42,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:42,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:42,660 INFO L87 Difference]: Start difference. First operand 13624 states and 72058 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:42,905 INFO L93 Difference]: Finished difference Result 32405 states and 162128 transitions. [2021-06-05 21:02:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:42,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:43,003 INFO L225 Difference]: With dead ends: 32405 [2021-06-05 21:02:43,004 INFO L226 Difference]: Without dead ends: 31199 [2021-06-05 21:02:43,004 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31199 states. [2021-06-05 21:02:44,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31199 to 13183. [2021-06-05 21:02:44,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13182 states have (on average 5.331512668790776) internal successors, (70280), 13182 states have internal predecessors, (70280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:44,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70280 transitions. [2021-06-05 21:02:44,207 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70280 transitions. Word has length 33 [2021-06-05 21:02:44,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:44,207 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70280 transitions. [2021-06-05 21:02:44,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:44,207 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70280 transitions. [2021-06-05 21:02:44,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:44,235 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:44,235 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:44,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 21:02:44,235 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:44,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:44,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1605458421, now seen corresponding path program 49 times [2021-06-05 21:02:44,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:44,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855310818] [2021-06-05 21:02:44,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:44,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:02:44,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:44,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855310818] [2021-06-05 21:02:44,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855310818] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:44,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:44,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:44,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441490983] [2021-06-05 21:02:44,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:44,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:44,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:44,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:44,376 INFO L87 Difference]: Start difference. First operand 13183 states and 70280 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:44,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:44,603 INFO L93 Difference]: Finished difference Result 31009 states and 156157 transitions. [2021-06-05 21:02:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:44,603 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:44,888 INFO L225 Difference]: With dead ends: 31009 [2021-06-05 21:02:44,888 INFO L226 Difference]: Without dead ends: 30250 [2021-06-05 21:02:44,888 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30250 states. [2021-06-05 21:02:45,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30250 to 13387. [2021-06-05 21:02:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.323472284476319) internal successors, (71260), 13386 states have internal predecessors, (71260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:45,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71260 transitions. [2021-06-05 21:02:45,955 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71260 transitions. Word has length 33 [2021-06-05 21:02:45,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:45,955 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71260 transitions. [2021-06-05 21:02:45,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:45,955 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71260 transitions. [2021-06-05 21:02:45,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:45,985 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:45,985 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:45,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 21:02:45,985 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:45,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:45,986 INFO L82 PathProgramCache]: Analyzing trace with hash -524395795, now seen corresponding path program 50 times [2021-06-05 21:02:45,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:45,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060545378] [2021-06-05 21:02:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:46,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:02:46,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:46,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060545378] [2021-06-05 21:02:46,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060545378] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:46,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:46,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:46,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201588422] [2021-06-05 21:02:46,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:46,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:46,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:46,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:46,118 INFO L87 Difference]: Start difference. First operand 13387 states and 71260 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:46,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:46,481 INFO L93 Difference]: Finished difference Result 31001 states and 156009 transitions. [2021-06-05 21:02:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:46,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:46,579 INFO L225 Difference]: With dead ends: 31001 [2021-06-05 21:02:46,579 INFO L226 Difference]: Without dead ends: 30130 [2021-06-05 21:02:46,579 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:47,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30130 states. [2021-06-05 21:02:47,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30130 to 13267. [2021-06-05 21:02:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.33031810643751) internal successors, (70712), 13266 states have internal predecessors, (70712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70712 transitions. [2021-06-05 21:02:47,849 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70712 transitions. Word has length 33 [2021-06-05 21:02:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:47,849 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70712 transitions. [2021-06-05 21:02:47,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70712 transitions. [2021-06-05 21:02:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:47,877 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:47,877 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:47,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 21:02:47,878 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:47,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:47,878 INFO L82 PathProgramCache]: Analyzing trace with hash -2086360467, now seen corresponding path program 51 times [2021-06-05 21:02:47,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:47,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524721411] [2021-06-05 21:02:47,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:48,004 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 21:02:48,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:48,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524721411] [2021-06-05 21:02:48,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524721411] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:48,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:48,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:48,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347582155] [2021-06-05 21:02:48,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:48,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:48,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:48,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:48,005 INFO L87 Difference]: Start difference. First operand 13267 states and 70712 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:48,240 INFO L93 Difference]: Finished difference Result 30985 states and 156001 transitions. [2021-06-05 21:02:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:48,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:48,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:48,338 INFO L225 Difference]: With dead ends: 30985 [2021-06-05 21:02:48,338 INFO L226 Difference]: Without dead ends: 30226 [2021-06-05 21:02:48,338 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 147.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:49,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30226 states. [2021-06-05 21:02:49,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30226 to 13379. [2021-06-05 21:02:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.320376737927941) internal successors, (71176), 13378 states have internal predecessors, (71176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:49,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71176 transitions. [2021-06-05 21:02:49,566 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71176 transitions. Word has length 33 [2021-06-05 21:02:49,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:49,566 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71176 transitions. [2021-06-05 21:02:49,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:49,566 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71176 transitions. [2021-06-05 21:02:49,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:49,594 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:49,594 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:49,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 21:02:49,594 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:49,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:49,594 INFO L82 PathProgramCache]: Analyzing trace with hash 520360557, now seen corresponding path program 52 times [2021-06-05 21:02:49,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:49,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214587479] [2021-06-05 21:02:49,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:49,724 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 21:02:49,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:49,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214587479] [2021-06-05 21:02:49,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214587479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:49,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:49,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:49,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398805529] [2021-06-05 21:02:49,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:49,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:49,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:49,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:49,725 INFO L87 Difference]: Start difference. First operand 13379 states and 71176 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:49,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:49,957 INFO L93 Difference]: Finished difference Result 30961 states and 155797 transitions. [2021-06-05 21:02:49,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:49,958 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:49,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:50,053 INFO L225 Difference]: With dead ends: 30961 [2021-06-05 21:02:50,053 INFO L226 Difference]: Without dead ends: 30114 [2021-06-05 21:02:50,053 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:50,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30114 states. [2021-06-05 21:02:51,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30114 to 13267. [2021-06-05 21:02:51,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.326096788783356) internal successors, (70656), 13266 states have internal predecessors, (70656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:51,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70656 transitions. [2021-06-05 21:02:51,250 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70656 transitions. Word has length 33 [2021-06-05 21:02:51,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:51,250 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70656 transitions. [2021-06-05 21:02:51,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:51,251 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70656 transitions. [2021-06-05 21:02:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:51,278 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:51,279 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:51,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 21:02:51,279 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:51,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:51,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1698355505, now seen corresponding path program 53 times [2021-06-05 21:02:51,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:51,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333563960] [2021-06-05 21:02:51,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:51,419 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 21:02:51,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:51,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333563960] [2021-06-05 21:02:51,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333563960] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:51,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:51,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:51,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573895176] [2021-06-05 21:02:51,419 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:51,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:51,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:51,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:51,420 INFO L87 Difference]: Start difference. First operand 13267 states and 70656 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:51,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:51,638 INFO L93 Difference]: Finished difference Result 30969 states and 155889 transitions. [2021-06-05 21:02:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:51,639 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:51,735 INFO L225 Difference]: With dead ends: 30969 [2021-06-05 21:02:51,735 INFO L226 Difference]: Without dead ends: 30218 [2021-06-05 21:02:51,735 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:52,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30218 states. [2021-06-05 21:02:52,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30218 to 13379. [2021-06-05 21:02:52,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.316190760950815) internal successors, (71120), 13378 states have internal predecessors, (71120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:52,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71120 transitions. [2021-06-05 21:02:52,912 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71120 transitions. Word has length 33 [2021-06-05 21:02:52,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:52,912 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71120 transitions. [2021-06-05 21:02:52,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71120 transitions. [2021-06-05 21:02:52,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:52,940 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:52,940 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:52,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 21:02:52,940 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:52,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:52,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1749814829, now seen corresponding path program 54 times [2021-06-05 21:02:52,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:52,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062133046] [2021-06-05 21:02:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:53,076 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 21:02:53,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:53,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062133046] [2021-06-05 21:02:53,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062133046] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:53,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:53,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:53,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133912097] [2021-06-05 21:02:53,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:53,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:53,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:53,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:53,078 INFO L87 Difference]: Start difference. First operand 13379 states and 71120 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:53,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:53,308 INFO L93 Difference]: Finished difference Result 30953 states and 155713 transitions. [2021-06-05 21:02:53,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:53,309 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:53,404 INFO L225 Difference]: With dead ends: 30953 [2021-06-05 21:02:53,404 INFO L226 Difference]: Without dead ends: 30050 [2021-06-05 21:02:53,404 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:54,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30050 states. [2021-06-05 21:02:54,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30050 to 13211. [2021-06-05 21:02:54,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13211 states, 13210 states have (on average 5.33111279333838) internal successors, (70424), 13210 states have internal predecessors, (70424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 70424 transitions. [2021-06-05 21:02:54,610 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 70424 transitions. Word has length 33 [2021-06-05 21:02:54,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:54,610 INFO L482 AbstractCegarLoop]: Abstraction has 13211 states and 70424 transitions. [2021-06-05 21:02:54,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:54,610 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 70424 transitions. [2021-06-05 21:02:54,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:54,637 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:54,637 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:54,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 21:02:54,638 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:54,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:54,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1368409717, now seen corresponding path program 55 times [2021-06-05 21:02:54,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:54,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27611082] [2021-06-05 21:02:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:54,796 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 21:02:54,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:54,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27611082] [2021-06-05 21:02:54,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27611082] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:54,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:54,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:54,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754375314] [2021-06-05 21:02:54,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:54,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:54,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:54,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:54,797 INFO L87 Difference]: Start difference. First operand 13211 states and 70424 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:55,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:55,181 INFO L93 Difference]: Finished difference Result 31063 states and 156346 transitions. [2021-06-05 21:02:55,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:55,182 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:55,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:55,278 INFO L225 Difference]: With dead ends: 31063 [2021-06-05 21:02:55,278 INFO L226 Difference]: Without dead ends: 30304 [2021-06-05 21:02:55,278 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30304 states. [2021-06-05 21:02:56,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30304 to 13391. [2021-06-05 21:02:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13391 states, 13390 states have (on average 5.321284540702017) internal successors, (71252), 13390 states have internal predecessors, (71252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 71252 transitions. [2021-06-05 21:02:56,342 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 71252 transitions. Word has length 33 [2021-06-05 21:02:56,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:56,342 INFO L482 AbstractCegarLoop]: Abstraction has 13391 states and 71252 transitions. [2021-06-05 21:02:56,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:56,342 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 71252 transitions. [2021-06-05 21:02:56,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:56,370 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:56,370 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:56,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 21:02:56,370 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:56,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:56,370 INFO L82 PathProgramCache]: Analyzing trace with hash -287347091, now seen corresponding path program 56 times [2021-06-05 21:02:56,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:56,370 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985448436] [2021-06-05 21:02:56,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:56,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:02:56,627 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:56,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985448436] [2021-06-05 21:02:56,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985448436] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:56,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:56,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:56,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826961381] [2021-06-05 21:02:56,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:56,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:56,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:56,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:56,628 INFO L87 Difference]: Start difference. First operand 13391 states and 71252 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:56,896 INFO L93 Difference]: Finished difference Result 31055 states and 156198 transitions. [2021-06-05 21:02:56,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:56,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:56,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:56,993 INFO L225 Difference]: With dead ends: 31055 [2021-06-05 21:02:56,993 INFO L226 Difference]: Without dead ends: 30184 [2021-06-05 21:02:56,993 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 275.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30184 states. [2021-06-05 21:02:58,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30184 to 13271. [2021-06-05 21:02:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13271 states, 13270 states have (on average 5.327807083647325) internal successors, (70700), 13270 states have internal predecessors, (70700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:58,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13271 states to 13271 states and 70700 transitions. [2021-06-05 21:02:58,234 INFO L78 Accepts]: Start accepts. Automaton has 13271 states and 70700 transitions. Word has length 33 [2021-06-05 21:02:58,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:58,235 INFO L482 AbstractCegarLoop]: Abstraction has 13271 states and 70700 transitions. [2021-06-05 21:02:58,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:58,235 INFO L276 IsEmpty]: Start isEmpty. Operand 13271 states and 70700 transitions. [2021-06-05 21:02:58,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:58,263 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:58,263 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:58,263 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 21:02:58,263 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:58,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:58,263 INFO L82 PathProgramCache]: Analyzing trace with hash -352353909, now seen corresponding path program 57 times [2021-06-05 21:02:58,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:58,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583400898] [2021-06-05 21:02:58,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:02:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:02:58,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:02:58,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583400898] [2021-06-05 21:02:58,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583400898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:02:58,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:02:58,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:02:58,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643389978] [2021-06-05 21:02:58,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:02:58,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:02:58,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:02:58,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:02:58,414 INFO L87 Difference]: Start difference. First operand 13271 states and 70700 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:02:58,669 INFO L93 Difference]: Finished difference Result 31081 states and 156347 transitions. [2021-06-05 21:02:58,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:02:58,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:02:58,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:02:58,766 INFO L225 Difference]: With dead ends: 31081 [2021-06-05 21:02:58,766 INFO L226 Difference]: Without dead ends: 30322 [2021-06-05 21:02:58,767 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:02:59,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30322 states. [2021-06-05 21:02:59,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30322 to 13395. [2021-06-05 21:02:59,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.316111691802299) internal successors, (71204), 13394 states have internal predecessors, (71204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:59,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71204 transitions. [2021-06-05 21:02:59,958 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71204 transitions. Word has length 33 [2021-06-05 21:02:59,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:02:59,958 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71204 transitions. [2021-06-05 21:02:59,958 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:02:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71204 transitions. [2021-06-05 21:02:59,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:02:59,986 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:02:59,986 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:02:59,986 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 21:02:59,986 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:02:59,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:02:59,987 INFO L82 PathProgramCache]: Analyzing trace with hash -2139735669, now seen corresponding path program 58 times [2021-06-05 21:02:59,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:02:59,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971168937] [2021-06-05 21:02:59,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:02:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:00,115 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 21:03:00,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:00,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971168937] [2021-06-05 21:03:00,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971168937] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:00,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:00,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:00,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428441660] [2021-06-05 21:03:00,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:00,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:00,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:00,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:00,116 INFO L87 Difference]: Start difference. First operand 13395 states and 71204 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:00,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:00,340 INFO L93 Difference]: Finished difference Result 31087 states and 156240 transitions. [2021-06-05 21:03:00,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:00,341 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:00,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:00,439 INFO L225 Difference]: With dead ends: 31087 [2021-06-05 21:03:00,439 INFO L226 Difference]: Without dead ends: 30198 [2021-06-05 21:03:00,439 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:01,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30198 states. [2021-06-05 21:03:01,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30198 to 13271. [2021-06-05 21:03:01,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13271 states, 13270 states have (on average 5.3232856066315) internal successors, (70640), 13270 states have internal predecessors, (70640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:01,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13271 states to 13271 states and 70640 transitions. [2021-06-05 21:03:01,643 INFO L78 Accepts]: Start accepts. Automaton has 13271 states and 70640 transitions. Word has length 33 [2021-06-05 21:03:01,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:01,643 INFO L482 AbstractCegarLoop]: Abstraction has 13271 states and 70640 transitions. [2021-06-05 21:03:01,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:01,644 INFO L276 IsEmpty]: Start isEmpty. Operand 13271 states and 70640 transitions. [2021-06-05 21:03:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:01,671 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:01,671 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:01,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 21:03:01,671 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:01,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:01,672 INFO L82 PathProgramCache]: Analyzing trace with hash 35651053, now seen corresponding path program 59 times [2021-06-05 21:03:01,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:01,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075244243] [2021-06-05 21:03:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:01,819 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 21:03:01,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:01,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075244243] [2021-06-05 21:03:01,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075244243] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:01,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:01,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:01,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72821132] [2021-06-05 21:03:01,820 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:01,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:01,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:01,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:01,820 INFO L87 Difference]: Start difference. First operand 13271 states and 70640 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:02,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:02,046 INFO L93 Difference]: Finished difference Result 31061 states and 156215 transitions. [2021-06-05 21:03:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:02,046 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:02,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:02,141 INFO L225 Difference]: With dead ends: 31061 [2021-06-05 21:03:02,141 INFO L226 Difference]: Without dead ends: 30310 [2021-06-05 21:03:02,142 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:03,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30310 states. [2021-06-05 21:03:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30310 to 13391. [2021-06-05 21:03:03,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13391 states, 13390 states have (on average 5.312322628827483) internal successors, (71132), 13390 states have internal predecessors, (71132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:03,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 71132 transitions. [2021-06-05 21:03:03,327 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 71132 transitions. Word has length 33 [2021-06-05 21:03:03,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:03,327 INFO L482 AbstractCegarLoop]: Abstraction has 13391 states and 71132 transitions. [2021-06-05 21:03:03,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:03,328 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 71132 transitions. [2021-06-05 21:03:03,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:03,355 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:03,355 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:03,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 21:03:03,355 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:03,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:03,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1240300235, now seen corresponding path program 60 times [2021-06-05 21:03:03,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:03,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624151631] [2021-06-05 21:03:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:03,512 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 21:03:03,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:03,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624151631] [2021-06-05 21:03:03,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624151631] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:03,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:03,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:03,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081569047] [2021-06-05 21:03:03,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:03,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:03,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:03,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:03,513 INFO L87 Difference]: Start difference. First operand 13391 states and 71132 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:03,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:03,751 INFO L93 Difference]: Finished difference Result 31075 states and 156140 transitions. [2021-06-05 21:03:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:03,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:03,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:03,846 INFO L225 Difference]: With dead ends: 31075 [2021-06-05 21:03:03,847 INFO L226 Difference]: Without dead ends: 30130 [2021-06-05 21:03:03,847 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:04,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30130 states. [2021-06-05 21:03:04,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30130 to 13211. [2021-06-05 21:03:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13211 states, 13210 states have (on average 5.328993186979561) internal successors, (70396), 13210 states have internal predecessors, (70396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:05,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 70396 transitions. [2021-06-05 21:03:05,048 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 70396 transitions. Word has length 33 [2021-06-05 21:03:05,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:05,048 INFO L482 AbstractCegarLoop]: Abstraction has 13211 states and 70396 transitions. [2021-06-05 21:03:05,049 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:05,049 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 70396 transitions. [2021-06-05 21:03:05,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:05,076 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:05,076 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:05,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 21:03:05,076 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:05,076 INFO L82 PathProgramCache]: Analyzing trace with hash 2137171309, now seen corresponding path program 61 times [2021-06-05 21:03:05,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:05,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346834498] [2021-06-05 21:03:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:05,208 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 21:03:05,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:05,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346834498] [2021-06-05 21:03:05,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346834498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:05,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:05,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:05,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695605787] [2021-06-05 21:03:05,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:05,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:05,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:05,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:05,209 INFO L87 Difference]: Start difference. First operand 13211 states and 70396 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:05,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:05,581 INFO L93 Difference]: Finished difference Result 31003 states and 156062 transitions. [2021-06-05 21:03:05,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:05,581 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:05,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:05,680 INFO L225 Difference]: With dead ends: 31003 [2021-06-05 21:03:05,680 INFO L226 Difference]: Without dead ends: 30244 [2021-06-05 21:03:05,680 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:06,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30244 states. [2021-06-05 21:03:06,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30244 to 13379. [2021-06-05 21:03:06,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.320376737927941) internal successors, (71176), 13378 states have internal predecessors, (71176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:06,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71176 transitions. [2021-06-05 21:03:06,752 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71176 transitions. Word has length 33 [2021-06-05 21:03:06,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:06,752 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71176 transitions. [2021-06-05 21:03:06,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:06,752 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71176 transitions. [2021-06-05 21:03:06,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:06,786 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:06,786 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:06,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 21:03:06,786 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:06,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:06,786 INFO L82 PathProgramCache]: Analyzing trace with hash 448925037, now seen corresponding path program 62 times [2021-06-05 21:03:06,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:06,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3140873] [2021-06-05 21:03:06,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:07,043 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 21:03:07,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:07,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3140873] [2021-06-05 21:03:07,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3140873] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:07,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:07,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:07,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092688439] [2021-06-05 21:03:07,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:07,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:07,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:07,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:07,044 INFO L87 Difference]: Start difference. First operand 13379 states and 71176 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:07,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:07,279 INFO L93 Difference]: Finished difference Result 30979 states and 155858 transitions. [2021-06-05 21:03:07,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:07,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:07,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:07,378 INFO L225 Difference]: With dead ends: 30979 [2021-06-05 21:03:07,379 INFO L226 Difference]: Without dead ends: 30132 [2021-06-05 21:03:07,379 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 279.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:08,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30132 states. [2021-06-05 21:03:08,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30132 to 13267. [2021-06-05 21:03:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.326096788783356) internal successors, (70656), 13266 states have internal predecessors, (70656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:08,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70656 transitions. [2021-06-05 21:03:08,599 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70656 transitions. Word has length 33 [2021-06-05 21:03:08,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:08,599 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70656 transitions. [2021-06-05 21:03:08,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70656 transitions. [2021-06-05 21:03:08,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:08,626 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:08,626 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:08,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 21:03:08,626 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:08,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:08,627 INFO L82 PathProgramCache]: Analyzing trace with hash 173816395, now seen corresponding path program 63 times [2021-06-05 21:03:08,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:08,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600249230] [2021-06-05 21:03:08,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:08,754 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 21:03:08,755 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:08,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600249230] [2021-06-05 21:03:08,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600249230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:08,755 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:08,755 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:08,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614180675] [2021-06-05 21:03:08,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:08,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:08,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:08,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:08,755 INFO L87 Difference]: Start difference. First operand 13267 states and 70656 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:08,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:08,978 INFO L93 Difference]: Finished difference Result 31045 states and 156167 transitions. [2021-06-05 21:03:08,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:08,978 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:08,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:09,080 INFO L225 Difference]: With dead ends: 31045 [2021-06-05 21:03:09,081 INFO L226 Difference]: Without dead ends: 30286 [2021-06-05 21:03:09,081 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:09,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30286 states. [2021-06-05 21:03:10,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30286 to 13391. [2021-06-05 21:03:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13391 states, 13390 states have (on average 5.314413741598208) internal successors, (71160), 13390 states have internal predecessors, (71160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:10,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 71160 transitions. [2021-06-05 21:03:10,265 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 71160 transitions. Word has length 33 [2021-06-05 21:03:10,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:10,265 INFO L482 AbstractCegarLoop]: Abstraction has 13391 states and 71160 transitions. [2021-06-05 21:03:10,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 71160 transitions. [2021-06-05 21:03:10,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:10,293 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:10,293 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:10,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 21:03:10,293 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:10,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:10,293 INFO L82 PathProgramCache]: Analyzing trace with hash -430133907, now seen corresponding path program 64 times [2021-06-05 21:03:10,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:10,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549173773] [2021-06-05 21:03:10,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:10,421 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 21:03:10,421 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:10,421 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549173773] [2021-06-05 21:03:10,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549173773] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:10,421 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:10,421 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:10,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709954882] [2021-06-05 21:03:10,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:10,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:10,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:10,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:10,422 INFO L87 Difference]: Start difference. First operand 13391 states and 71160 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:10,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:10,647 INFO L93 Difference]: Finished difference Result 31051 states and 156060 transitions. [2021-06-05 21:03:10,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:10,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:10,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:10,743 INFO L225 Difference]: With dead ends: 31051 [2021-06-05 21:03:10,743 INFO L226 Difference]: Without dead ends: 30162 [2021-06-05 21:03:10,743 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30162 states. [2021-06-05 21:03:11,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30162 to 13267. [2021-06-05 21:03:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.321875471129203) internal successors, (70600), 13266 states have internal predecessors, (70600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:11,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70600 transitions. [2021-06-05 21:03:11,932 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70600 transitions. Word has length 33 [2021-06-05 21:03:11,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:11,932 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70600 transitions. [2021-06-05 21:03:11,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:11,932 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70600 transitions. [2021-06-05 21:03:11,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:11,960 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:11,960 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:11,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 21:03:11,960 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:11,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:11,960 INFO L82 PathProgramCache]: Analyzing trace with hash 761972077, now seen corresponding path program 65 times [2021-06-05 21:03:11,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:11,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250788790] [2021-06-05 21:03:11,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:12,112 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 21:03:12,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:12,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250788790] [2021-06-05 21:03:12,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250788790] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:12,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:12,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:12,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057284138] [2021-06-05 21:03:12,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:12,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:12,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:12,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:12,113 INFO L87 Difference]: Start difference. First operand 13267 states and 70600 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:12,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:12,371 INFO L93 Difference]: Finished difference Result 30985 states and 155875 transitions. [2021-06-05 21:03:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:12,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:12,469 INFO L225 Difference]: With dead ends: 30985 [2021-06-05 21:03:12,469 INFO L226 Difference]: Without dead ends: 30250 [2021-06-05 21:03:12,469 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:13,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30250 states. [2021-06-05 21:03:13,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30250 to 13379. [2021-06-05 21:03:13,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.312004783973689) internal successors, (71064), 13378 states have internal predecessors, (71064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71064 transitions. [2021-06-05 21:03:13,658 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71064 transitions. Word has length 33 [2021-06-05 21:03:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:13,658 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71064 transitions. [2021-06-05 21:03:13,658 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:13,658 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71064 transitions. [2021-06-05 21:03:13,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:13,685 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:13,686 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:13,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 21:03:13,686 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:13,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:13,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1059063349, now seen corresponding path program 66 times [2021-06-05 21:03:13,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:13,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085151729] [2021-06-05 21:03:13,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:13,827 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 21:03:13,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:13,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085151729] [2021-06-05 21:03:13,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085151729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:13,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:13,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:13,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703059383] [2021-06-05 21:03:13,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:13,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:13,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:13,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:13,828 INFO L87 Difference]: Start difference. First operand 13379 states and 71064 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:14,083 INFO L93 Difference]: Finished difference Result 31015 states and 155872 transitions. [2021-06-05 21:03:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:14,083 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:14,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:14,363 INFO L225 Difference]: With dead ends: 31015 [2021-06-05 21:03:14,363 INFO L226 Difference]: Without dead ends: 30082 [2021-06-05 21:03:14,363 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:15,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30082 states. [2021-06-05 21:03:15,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30082 to 13211. [2021-06-05 21:03:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13211 states, 13210 states have (on average 5.326873580620742) internal successors, (70368), 13210 states have internal predecessors, (70368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 70368 transitions. [2021-06-05 21:03:15,389 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 70368 transitions. Word has length 33 [2021-06-05 21:03:15,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:15,389 INFO L482 AbstractCegarLoop]: Abstraction has 13211 states and 70368 transitions. [2021-06-05 21:03:15,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:15,389 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 70368 transitions. [2021-06-05 21:03:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:15,416 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:15,416 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:15,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 21:03:15,416 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:15,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:15,416 INFO L82 PathProgramCache]: Analyzing trace with hash -2078275249, now seen corresponding path program 67 times [2021-06-05 21:03:15,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:15,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097194493] [2021-06-05 21:03:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:15,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:03:15,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:15,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097194493] [2021-06-05 21:03:15,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097194493] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:15,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:15,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:15,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045038808] [2021-06-05 21:03:15,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:15,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:15,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:15,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:15,564 INFO L87 Difference]: Start difference. First operand 13211 states and 70368 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:15,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:15,996 INFO L93 Difference]: Finished difference Result 30975 states and 155934 transitions. [2021-06-05 21:03:15,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:15,996 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:15,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:16,093 INFO L225 Difference]: With dead ends: 30975 [2021-06-05 21:03:16,093 INFO L226 Difference]: Without dead ends: 30224 [2021-06-05 21:03:16,093 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:16,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30224 states. [2021-06-05 21:03:17,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30224 to 13379. [2021-06-05 21:03:17,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.318283749439378) internal successors, (71148), 13378 states have internal predecessors, (71148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:17,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71148 transitions. [2021-06-05 21:03:17,177 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71148 transitions. Word has length 33 [2021-06-05 21:03:17,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:17,177 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71148 transitions. [2021-06-05 21:03:17,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71148 transitions. [2021-06-05 21:03:17,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:17,205 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:17,205 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:17,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 21:03:17,206 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:17,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:17,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1369895085, now seen corresponding path program 68 times [2021-06-05 21:03:17,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:17,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088047730] [2021-06-05 21:03:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:17,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:03:17,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:17,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088047730] [2021-06-05 21:03:17,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088047730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:17,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:17,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:17,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616140657] [2021-06-05 21:03:17,476 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:17,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:17,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:17,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:17,476 INFO L87 Difference]: Start difference. First operand 13379 states and 71148 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:17,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:17,713 INFO L93 Difference]: Finished difference Result 30959 states and 155758 transitions. [2021-06-05 21:03:17,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:17,713 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:17,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:17,811 INFO L225 Difference]: With dead ends: 30959 [2021-06-05 21:03:17,811 INFO L226 Difference]: Without dead ends: 30112 [2021-06-05 21:03:17,811 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:18,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30112 states. [2021-06-05 21:03:18,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30112 to 13267. [2021-06-05 21:03:18,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.323986129956279) internal successors, (70628), 13266 states have internal predecessors, (70628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70628 transitions. [2021-06-05 21:03:19,023 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70628 transitions. Word has length 33 [2021-06-05 21:03:19,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:19,023 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70628 transitions. [2021-06-05 21:03:19,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:19,023 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70628 transitions. [2021-06-05 21:03:19,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:19,051 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:19,051 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:19,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 21:03:19,051 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:19,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:19,051 INFO L82 PathProgramCache]: Analyzing trace with hash 253337133, now seen corresponding path program 69 times [2021-06-05 21:03:19,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:19,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101757841] [2021-06-05 21:03:19,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:19,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:03:19,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:19,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101757841] [2021-06-05 21:03:19,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101757841] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:19,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:19,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:19,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550620610] [2021-06-05 21:03:19,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:19,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:19,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:19,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:19,228 INFO L87 Difference]: Start difference. First operand 13267 states and 70628 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:19,460 INFO L93 Difference]: Finished difference Result 31013 states and 156023 transitions. [2021-06-05 21:03:19,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:19,460 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:19,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:19,559 INFO L225 Difference]: With dead ends: 31013 [2021-06-05 21:03:19,559 INFO L226 Difference]: Without dead ends: 30262 [2021-06-05 21:03:19,559 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:20,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30262 states. [2021-06-05 21:03:20,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30262 to 13387. [2021-06-05 21:03:20,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.3130135962946365) internal successors, (71120), 13386 states have internal predecessors, (71120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:20,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71120 transitions. [2021-06-05 21:03:20,739 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71120 transitions. Word has length 33 [2021-06-05 21:03:20,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:20,739 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71120 transitions. [2021-06-05 21:03:20,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:20,740 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71120 transitions. [2021-06-05 21:03:20,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:20,767 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:20,768 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:20,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 21:03:20,768 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:20,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:20,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1653549523, now seen corresponding path program 70 times [2021-06-05 21:03:20,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:20,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735270646] [2021-06-05 21:03:20,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:20,933 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 21:03:20,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:20,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735270646] [2021-06-05 21:03:20,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735270646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:20,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:20,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:20,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447724661] [2021-06-05 21:03:20,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:20,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:20,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:20,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:20,934 INFO L87 Difference]: Start difference. First operand 13387 states and 71120 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:21,167 INFO L93 Difference]: Finished difference Result 31027 states and 155948 transitions. [2021-06-05 21:03:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:21,167 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:21,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:21,265 INFO L225 Difference]: With dead ends: 31027 [2021-06-05 21:03:21,266 INFO L226 Difference]: Without dead ends: 30142 [2021-06-05 21:03:21,266 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:22,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30142 states. [2021-06-05 21:03:22,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30142 to 13267. [2021-06-05 21:03:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13267 states, 13266 states have (on average 5.319764812302126) internal successors, (70572), 13266 states have internal predecessors, (70572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:22,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70572 transitions. [2021-06-05 21:03:22,455 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70572 transitions. Word has length 33 [2021-06-05 21:03:22,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:22,455 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70572 transitions. [2021-06-05 21:03:22,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:22,456 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70572 transitions. [2021-06-05 21:03:22,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:22,483 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:22,483 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:22,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 21:03:22,483 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:22,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:22,483 INFO L82 PathProgramCache]: Analyzing trace with hash -603410933, now seen corresponding path program 71 times [2021-06-05 21:03:22,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:22,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293456460] [2021-06-05 21:03:22,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:22,638 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 21:03:22,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:22,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293456460] [2021-06-05 21:03:22,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293456460] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:22,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:22,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:22,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931764573] [2021-06-05 21:03:22,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:22,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:22,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:22,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:22,639 INFO L87 Difference]: Start difference. First operand 13267 states and 70572 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:22,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:22,871 INFO L93 Difference]: Finished difference Result 30973 states and 155803 transitions. [2021-06-05 21:03:22,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:22,872 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:22,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:22,968 INFO L225 Difference]: With dead ends: 30973 [2021-06-05 21:03:22,968 INFO L226 Difference]: Without dead ends: 30238 [2021-06-05 21:03:22,968 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:23,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30238 states. [2021-06-05 21:03:24,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30238 to 13379. [2021-06-05 21:03:24,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.3099117954851245) internal successors, (71036), 13378 states have internal predecessors, (71036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71036 transitions. [2021-06-05 21:03:24,291 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71036 transitions. Word has length 33 [2021-06-05 21:03:24,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:24,291 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71036 transitions. [2021-06-05 21:03:24,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:24,291 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71036 transitions. [2021-06-05 21:03:24,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:24,319 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:24,319 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:24,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 21:03:24,319 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:24,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:24,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1220934291, now seen corresponding path program 72 times [2021-06-05 21:03:24,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:24,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482484174] [2021-06-05 21:03:24,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:03:24,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:24,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482484174] [2021-06-05 21:03:24,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482484174] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:24,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:24,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:24,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138111979] [2021-06-05 21:03:24,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:24,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:24,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:24,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:24,476 INFO L87 Difference]: Start difference. First operand 13379 states and 71036 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:24,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:24,708 INFO L93 Difference]: Finished difference Result 31003 states and 155800 transitions. [2021-06-05 21:03:24,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:24,708 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:24,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:24,995 INFO L225 Difference]: With dead ends: 31003 [2021-06-05 21:03:24,995 INFO L226 Difference]: Without dead ends: 30042 [2021-06-05 21:03:24,995 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:25,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30042 states. [2021-06-05 21:03:25,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30042 to 13183. [2021-06-05 21:03:25,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13182 states have (on average 5.330450614474283) internal successors, (70266), 13182 states have internal predecessors, (70266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:26,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70266 transitions. [2021-06-05 21:03:26,015 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70266 transitions. Word has length 33 [2021-06-05 21:03:26,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:26,015 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70266 transitions. [2021-06-05 21:03:26,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:26,015 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70266 transitions. [2021-06-05 21:03:26,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:26,043 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:26,043 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:26,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 21:03:26,043 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:26,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:26,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1977125839, now seen corresponding path program 73 times [2021-06-05 21:03:26,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:26,043 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228637100] [2021-06-05 21:03:26,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:26,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:03:26,203 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:26,203 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228637100] [2021-06-05 21:03:26,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228637100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:26,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:26,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:26,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133158102] [2021-06-05 21:03:26,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:26,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:26,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:26,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:26,204 INFO L87 Difference]: Start difference. First operand 13183 states and 70266 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:26,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:26,598 INFO L93 Difference]: Finished difference Result 31896 states and 160380 transitions. [2021-06-05 21:03:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:26,599 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:26,701 INFO L225 Difference]: With dead ends: 31896 [2021-06-05 21:03:26,701 INFO L226 Difference]: Without dead ends: 31137 [2021-06-05 21:03:26,702 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:27,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31137 states. [2021-06-05 21:03:27,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31137 to 13443. [2021-06-05 21:03:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13443 states, 13442 states have (on average 5.324356494569261) internal successors, (71570), 13442 states have internal predecessors, (71570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:27,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13443 states to 13443 states and 71570 transitions. [2021-06-05 21:03:27,800 INFO L78 Accepts]: Start accepts. Automaton has 13443 states and 71570 transitions. Word has length 33 [2021-06-05 21:03:27,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:27,801 INFO L482 AbstractCegarLoop]: Abstraction has 13443 states and 71570 transitions. [2021-06-05 21:03:27,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand 13443 states and 71570 transitions. [2021-06-05 21:03:27,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:27,935 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:27,935 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:27,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 21:03:27,935 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:27,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:27,936 INFO L82 PathProgramCache]: Analyzing trace with hash 288879567, now seen corresponding path program 74 times [2021-06-05 21:03:27,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:27,936 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750658834] [2021-06-05 21:03:27,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:28,080 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 21:03:28,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:28,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750658834] [2021-06-05 21:03:28,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750658834] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:28,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:28,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:28,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812134600] [2021-06-05 21:03:28,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:28,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:28,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:28,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:28,081 INFO L87 Difference]: Start difference. First operand 13443 states and 71570 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:28,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:28,333 INFO L93 Difference]: Finished difference Result 31872 states and 160176 transitions. [2021-06-05 21:03:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:28,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:28,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:28,436 INFO L225 Difference]: With dead ends: 31872 [2021-06-05 21:03:28,436 INFO L226 Difference]: Without dead ends: 31025 [2021-06-05 21:03:28,436 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:29,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31025 states. [2021-06-05 21:03:29,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31025 to 13331. [2021-06-05 21:03:29,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13331 states, 13330 states have (on average 5.330082520630158) internal successors, (71050), 13330 states have internal predecessors, (71050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:29,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 71050 transitions. [2021-06-05 21:03:29,631 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 71050 transitions. Word has length 33 [2021-06-05 21:03:29,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:29,631 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 71050 transitions. [2021-06-05 21:03:29,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 71050 transitions. [2021-06-05 21:03:29,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:29,658 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:29,658 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:29,659 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 21:03:29,659 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:29,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:29,659 INFO L82 PathProgramCache]: Analyzing trace with hash 23722029, now seen corresponding path program 75 times [2021-06-05 21:03:29,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:29,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115314933] [2021-06-05 21:03:29,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:29,814 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 21:03:29,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:29,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115314933] [2021-06-05 21:03:29,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115314933] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:29,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:29,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:29,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202535477] [2021-06-05 21:03:29,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:29,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:29,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:29,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:29,815 INFO L87 Difference]: Start difference. First operand 13331 states and 71050 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:30,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:30,088 INFO L93 Difference]: Finished difference Result 32131 states and 161383 transitions. [2021-06-05 21:03:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:30,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:30,193 INFO L225 Difference]: With dead ends: 32131 [2021-06-05 21:03:30,193 INFO L226 Difference]: Without dead ends: 31372 [2021-06-05 21:03:30,193 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:30,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31372 states. [2021-06-05 21:03:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31372 to 13519. [2021-06-05 21:03:31,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13519 states, 13518 states have (on average 5.316910785619174) internal successors, (71874), 13518 states have internal predecessors, (71874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13519 states to 13519 states and 71874 transitions. [2021-06-05 21:03:31,367 INFO L78 Accepts]: Start accepts. Automaton has 13519 states and 71874 transitions. Word has length 33 [2021-06-05 21:03:31,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:31,367 INFO L482 AbstractCegarLoop]: Abstraction has 13519 states and 71874 transitions. [2021-06-05 21:03:31,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:31,367 INFO L276 IsEmpty]: Start isEmpty. Operand 13519 states and 71874 transitions. [2021-06-05 21:03:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:31,394 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:31,394 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:31,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 21:03:31,394 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:31,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1624984625, now seen corresponding path program 76 times [2021-06-05 21:03:31,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:31,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361458757] [2021-06-05 21:03:31,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:31,561 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 21:03:31,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:31,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361458757] [2021-06-05 21:03:31,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361458757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:31,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:31,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:31,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414184342] [2021-06-05 21:03:31,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:31,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:31,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:31,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:31,562 INFO L87 Difference]: Start difference. First operand 13519 states and 71874 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:31,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:31,766 INFO L93 Difference]: Finished difference Result 32266 states and 161854 transitions. [2021-06-05 21:03:31,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:31,767 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:31,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:31,867 INFO L225 Difference]: With dead ends: 32266 [2021-06-05 21:03:31,867 INFO L226 Difference]: Without dead ends: 31184 [2021-06-05 21:03:31,867 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:32,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31184 states. [2021-06-05 21:03:33,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31184 to 13331. [2021-06-05 21:03:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13331 states, 13330 states have (on average 5.323480870217554) internal successors, (70962), 13330 states have internal predecessors, (70962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:33,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 70962 transitions. [2021-06-05 21:03:33,067 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 70962 transitions. Word has length 33 [2021-06-05 21:03:33,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:33,067 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 70962 transitions. [2021-06-05 21:03:33,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:33,067 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 70962 transitions. [2021-06-05 21:03:33,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:33,096 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:33,096 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:33,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 21:03:33,096 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:33,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:33,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1304935375, now seen corresponding path program 77 times [2021-06-05 21:03:33,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:33,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281241166] [2021-06-05 21:03:33,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:33,251 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 21:03:33,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:33,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281241166] [2021-06-05 21:03:33,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281241166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:33,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:33,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:33,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397939226] [2021-06-05 21:03:33,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:33,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:33,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:33,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:33,252 INFO L87 Difference]: Start difference. First operand 13331 states and 70962 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:33,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:33,501 INFO L93 Difference]: Finished difference Result 32071 states and 161059 transitions. [2021-06-05 21:03:33,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:33,501 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:33,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:33,601 INFO L225 Difference]: With dead ends: 32071 [2021-06-05 21:03:33,602 INFO L226 Difference]: Without dead ends: 31336 [2021-06-05 21:03:33,602 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:34,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31336 states. [2021-06-05 21:03:34,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31336 to 13507. [2021-06-05 21:03:34,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13507 states, 13506 states have (on average 5.312157559603139) internal successors, (71746), 13506 states have internal predecessors, (71746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:34,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 71746 transitions. [2021-06-05 21:03:34,820 INFO L78 Accepts]: Start accepts. Automaton has 13507 states and 71746 transitions. Word has length 33 [2021-06-05 21:03:34,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:34,820 INFO L482 AbstractCegarLoop]: Abstraction has 13507 states and 71746 transitions. [2021-06-05 21:03:34,820 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 13507 states and 71746 transitions. [2021-06-05 21:03:34,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:34,848 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:34,848 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:34,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 21:03:34,848 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:34,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:34,853 INFO L82 PathProgramCache]: Analyzing trace with hash 753182637, now seen corresponding path program 78 times [2021-06-05 21:03:34,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:34,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108172227] [2021-06-05 21:03:34,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:35,010 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 21:03:35,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:35,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108172227] [2021-06-05 21:03:35,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108172227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:35,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:35,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:35,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540696462] [2021-06-05 21:03:35,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:35,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:35,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:35,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:35,011 INFO L87 Difference]: Start difference. First operand 13507 states and 71746 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:35,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:35,377 INFO L93 Difference]: Finished difference Result 32230 states and 161634 transitions. [2021-06-05 21:03:35,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:35,377 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:35,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:35,483 INFO L225 Difference]: With dead ends: 32230 [2021-06-05 21:03:35,483 INFO L226 Difference]: Without dead ends: 31072 [2021-06-05 21:03:35,483 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:36,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31072 states. [2021-06-05 21:03:36,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31072 to 13243. [2021-06-05 21:03:36,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.329255399486482) internal successors, (70570), 13242 states have internal predecessors, (70570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70570 transitions. [2021-06-05 21:03:36,554 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70570 transitions. Word has length 33 [2021-06-05 21:03:36,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:36,554 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70570 transitions. [2021-06-05 21:03:36,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:36,554 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70570 transitions. [2021-06-05 21:03:36,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:36,581 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:36,581 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:36,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 21:03:36,581 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:36,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:36,582 INFO L82 PathProgramCache]: Analyzing trace with hash -859794387, now seen corresponding path program 79 times [2021-06-05 21:03:36,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:36,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668529762] [2021-06-05 21:03:36,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:36,709 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 21:03:36,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:36,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668529762] [2021-06-05 21:03:36,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668529762] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:36,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:36,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:36,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17182727] [2021-06-05 21:03:36,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:36,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:36,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:36,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:36,710 INFO L87 Difference]: Start difference. First operand 13243 states and 70570 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:37,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:37,117 INFO L93 Difference]: Finished difference Result 31607 states and 158942 transitions. [2021-06-05 21:03:37,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:37,118 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:37,219 INFO L225 Difference]: With dead ends: 31607 [2021-06-05 21:03:37,219 INFO L226 Difference]: Without dead ends: 30848 [2021-06-05 21:03:37,219 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:37,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30848 states. [2021-06-05 21:03:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30848 to 13411. [2021-06-05 21:03:38,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13411 states, 13410 states have (on average 5.320656226696495) internal successors, (71350), 13410 states have internal predecessors, (71350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:38,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71350 transitions. [2021-06-05 21:03:38,472 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71350 transitions. Word has length 33 [2021-06-05 21:03:38,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:38,472 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71350 transitions. [2021-06-05 21:03:38,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:38,472 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71350 transitions. [2021-06-05 21:03:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:38,500 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:38,500 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:38,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 21:03:38,500 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:38,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:38,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1746926637, now seen corresponding path program 80 times [2021-06-05 21:03:38,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:38,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548807844] [2021-06-05 21:03:38,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:38,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:03:38,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:38,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548807844] [2021-06-05 21:03:38,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548807844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:38,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:38,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:38,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347267022] [2021-06-05 21:03:38,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:38,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:38,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:38,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:38,624 INFO L87 Difference]: Start difference. First operand 13411 states and 71350 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:38,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:38,859 INFO L93 Difference]: Finished difference Result 31583 states and 158738 transitions. [2021-06-05 21:03:38,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:38,859 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:38,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:38,957 INFO L225 Difference]: With dead ends: 31583 [2021-06-05 21:03:38,957 INFO L226 Difference]: Without dead ends: 30736 [2021-06-05 21:03:38,957 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 147.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:39,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30736 states. [2021-06-05 21:03:40,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30736 to 13299. [2021-06-05 21:03:40,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13299 states, 13298 states have (on average 5.326364866897277) internal successors, (70830), 13298 states have internal predecessors, (70830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70830 transitions. [2021-06-05 21:03:40,187 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70830 transitions. Word has length 33 [2021-06-05 21:03:40,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:40,187 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70830 transitions. [2021-06-05 21:03:40,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:40,187 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70830 transitions. [2021-06-05 21:03:40,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:40,215 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:40,215 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:40,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 21:03:40,215 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:40,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:40,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1267789651, now seen corresponding path program 81 times [2021-06-05 21:03:40,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:40,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825155815] [2021-06-05 21:03:40,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:40,342 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 21:03:40,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:40,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825155815] [2021-06-05 21:03:40,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825155815] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:40,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:40,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:40,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716412175] [2021-06-05 21:03:40,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:40,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:40,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:40,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:40,343 INFO L87 Difference]: Start difference. First operand 13299 states and 70830 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:40,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:40,570 INFO L93 Difference]: Finished difference Result 31649 states and 159047 transitions. [2021-06-05 21:03:40,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:40,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:40,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:40,670 INFO L225 Difference]: With dead ends: 31649 [2021-06-05 21:03:40,670 INFO L226 Difference]: Without dead ends: 30890 [2021-06-05 21:03:40,670 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:41,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30890 states. [2021-06-05 21:03:41,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30890 to 13423. [2021-06-05 21:03:41,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13423 states, 13422 states have (on average 5.314707197139025) internal successors, (71334), 13422 states have internal predecessors, (71334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13423 states to 13423 states and 71334 transitions. [2021-06-05 21:03:41,863 INFO L78 Accepts]: Start accepts. Automaton has 13423 states and 71334 transitions. Word has length 33 [2021-06-05 21:03:41,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:41,863 INFO L482 AbstractCegarLoop]: Abstraction has 13423 states and 71334 transitions. [2021-06-05 21:03:41,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 13423 states and 71334 transitions. [2021-06-05 21:03:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:41,891 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:41,891 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:41,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 21:03:41,891 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:41,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:41,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1871739953, now seen corresponding path program 82 times [2021-06-05 21:03:41,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:41,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730659576] [2021-06-05 21:03:41,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:42,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:03:42,020 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:42,020 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730659576] [2021-06-05 21:03:42,020 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730659576] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:42,020 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:42,020 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:42,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194254959] [2021-06-05 21:03:42,020 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:42,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:42,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:42,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:42,021 INFO L87 Difference]: Start difference. First operand 13423 states and 71334 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:42,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:42,255 INFO L93 Difference]: Finished difference Result 31655 states and 158940 transitions. [2021-06-05 21:03:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:42,255 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:42,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:42,352 INFO L225 Difference]: With dead ends: 31655 [2021-06-05 21:03:42,352 INFO L226 Difference]: Without dead ends: 30766 [2021-06-05 21:03:42,353 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:43,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30766 states. [2021-06-05 21:03:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30766 to 13299. [2021-06-05 21:03:43,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13299 states, 13298 states have (on average 5.32215370732441) internal successors, (70774), 13298 states have internal predecessors, (70774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:43,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70774 transitions. [2021-06-05 21:03:43,555 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70774 transitions. Word has length 33 [2021-06-05 21:03:43,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:43,555 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70774 transitions. [2021-06-05 21:03:43,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:43,555 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70774 transitions. [2021-06-05 21:03:43,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:43,583 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:43,583 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:43,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 21:03:43,583 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:43,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:43,584 INFO L82 PathProgramCache]: Analyzing trace with hash -679633969, now seen corresponding path program 83 times [2021-06-05 21:03:43,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:43,584 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632064198] [2021-06-05 21:03:43,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:43,727 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 21:03:43,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:43,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632064198] [2021-06-05 21:03:43,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632064198] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:43,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:43,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:43,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387858208] [2021-06-05 21:03:43,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:43,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:43,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:43,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:43,728 INFO L87 Difference]: Start difference. First operand 13299 states and 70774 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:43,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:43,972 INFO L93 Difference]: Finished difference Result 31589 states and 158755 transitions. [2021-06-05 21:03:43,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:43,972 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:43,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:44,076 INFO L225 Difference]: With dead ends: 31589 [2021-06-05 21:03:44,076 INFO L226 Difference]: Without dead ends: 30854 [2021-06-05 21:03:44,076 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30854 states. [2021-06-05 21:03:45,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30854 to 13411. [2021-06-05 21:03:45,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13411 states, 13410 states have (on average 5.312304250559284) internal successors, (71238), 13410 states have internal predecessors, (71238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:45,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71238 transitions. [2021-06-05 21:03:45,280 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71238 transitions. Word has length 33 [2021-06-05 21:03:45,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:45,280 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71238 transitions. [2021-06-05 21:03:45,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:45,280 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71238 transitions. [2021-06-05 21:03:45,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:45,308 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:45,308 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:45,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 21:03:45,308 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:45,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:45,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1794297901, now seen corresponding path program 84 times [2021-06-05 21:03:45,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:45,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906692418] [2021-06-05 21:03:45,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:45,449 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 21:03:45,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:45,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906692418] [2021-06-05 21:03:45,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906692418] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:45,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:45,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:45,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133199221] [2021-06-05 21:03:45,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:45,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:45,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:45,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:45,450 INFO L87 Difference]: Start difference. First operand 13411 states and 71238 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:45,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:45,830 INFO L93 Difference]: Finished difference Result 31619 states and 158752 transitions. [2021-06-05 21:03:45,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:45,831 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:45,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:45,927 INFO L225 Difference]: With dead ends: 31619 [2021-06-05 21:03:45,927 INFO L226 Difference]: Without dead ends: 30686 [2021-06-05 21:03:45,927 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30686 states. [2021-06-05 21:03:46,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30686 to 13243. [2021-06-05 21:03:46,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.327140915269597) internal successors, (70542), 13242 states have internal predecessors, (70542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:46,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70542 transitions. [2021-06-05 21:03:46,996 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70542 transitions. Word has length 33 [2021-06-05 21:03:46,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:46,996 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70542 transitions. [2021-06-05 21:03:46,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:46,996 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70542 transitions. [2021-06-05 21:03:47,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:47,023 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:47,023 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:47,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 21:03:47,024 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:47,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:47,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1269707381, now seen corresponding path program 85 times [2021-06-05 21:03:47,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:47,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055154529] [2021-06-05 21:03:47,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:47,228 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2021-06-05 21:03:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:03:47,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:47,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055154529] [2021-06-05 21:03:47,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055154529] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:47,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:47,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:47,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858691210] [2021-06-05 21:03:47,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:47,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:47,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:47,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:47,286 INFO L87 Difference]: Start difference. First operand 13243 states and 70542 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:47,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:47,530 INFO L93 Difference]: Finished difference Result 32290 states and 162019 transitions. [2021-06-05 21:03:47,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:47,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:47,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:47,632 INFO L225 Difference]: With dead ends: 32290 [2021-06-05 21:03:47,633 INFO L226 Difference]: Without dead ends: 31531 [2021-06-05 21:03:47,633 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 301.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:48,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31531 states. [2021-06-05 21:03:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31531 to 13557. [2021-06-05 21:03:48,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13557 states, 13556 states have (on average 5.313588079079374) internal successors, (72031), 13556 states have internal predecessors, (72031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13557 states to 13557 states and 72031 transitions. [2021-06-05 21:03:48,883 INFO L78 Accepts]: Start accepts. Automaton has 13557 states and 72031 transitions. Word has length 33 [2021-06-05 21:03:48,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:48,883 INFO L482 AbstractCegarLoop]: Abstraction has 13557 states and 72031 transitions. [2021-06-05 21:03:48,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:48,883 INFO L276 IsEmpty]: Start isEmpty. Operand 13557 states and 72031 transitions. [2021-06-05 21:03:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:48,911 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:48,911 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:48,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 21:03:48,911 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:48,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:48,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1376553261, now seen corresponding path program 86 times [2021-06-05 21:03:48,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:48,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195034181] [2021-06-05 21:03:48,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:03:49,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:49,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195034181] [2021-06-05 21:03:49,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195034181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:49,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:49,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:49,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981855580] [2021-06-05 21:03:49,060 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:49,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:49,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:49,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:49,060 INFO L87 Difference]: Start difference. First operand 13557 states and 72031 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:49,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:49,271 INFO L93 Difference]: Finished difference Result 32425 states and 162490 transitions. [2021-06-05 21:03:49,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:49,272 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:49,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:49,372 INFO L225 Difference]: With dead ends: 32425 [2021-06-05 21:03:49,372 INFO L226 Difference]: Without dead ends: 31343 [2021-06-05 21:03:49,372 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:50,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31343 states. [2021-06-05 21:03:50,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31343 to 13369. [2021-06-05 21:03:50,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13368 states have (on average 5.319643925792938) internal successors, (71113), 13368 states have internal predecessors, (71113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71113 transitions. [2021-06-05 21:03:50,586 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71113 transitions. Word has length 33 [2021-06-05 21:03:50,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:50,586 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71113 transitions. [2021-06-05 21:03:50,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:50,586 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71113 transitions. [2021-06-05 21:03:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:50,615 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:50,615 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:50,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 21:03:50,615 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:50,615 INFO L82 PathProgramCache]: Analyzing trace with hash 439894381, now seen corresponding path program 87 times [2021-06-05 21:03:50,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:50,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49145877] [2021-06-05 21:03:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:50,745 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 21:03:50,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:50,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49145877] [2021-06-05 21:03:50,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49145877] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:50,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:50,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:50,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106670627] [2021-06-05 21:03:50,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:50,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:50,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:50,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:50,746 INFO L87 Difference]: Start difference. First operand 13369 states and 71113 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:50,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:50,985 INFO L93 Difference]: Finished difference Result 32097 states and 161027 transitions. [2021-06-05 21:03:50,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:50,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:51,088 INFO L225 Difference]: With dead ends: 32097 [2021-06-05 21:03:51,088 INFO L226 Difference]: Without dead ends: 31338 [2021-06-05 21:03:51,089 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:51,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31338 states. [2021-06-05 21:03:52,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31338 to 13493. [2021-06-05 21:03:52,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 5.308108508745923) internal successors, (71617), 13492 states have internal predecessors, (71617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:52,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 71617 transitions. [2021-06-05 21:03:52,300 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 71617 transitions. Word has length 33 [2021-06-05 21:03:52,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:52,300 INFO L482 AbstractCegarLoop]: Abstraction has 13493 states and 71617 transitions. [2021-06-05 21:03:52,300 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:52,300 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 71617 transitions. [2021-06-05 21:03:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:52,329 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:52,329 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:52,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 21:03:52,329 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:52,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:52,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2102874285, now seen corresponding path program 88 times [2021-06-05 21:03:52,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:52,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097516069] [2021-06-05 21:03:52,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:52,460 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 21:03:52,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:52,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097516069] [2021-06-05 21:03:52,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097516069] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:52,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:52,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:52,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498321734] [2021-06-05 21:03:52,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:52,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:52,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:52,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:52,461 INFO L87 Difference]: Start difference. First operand 13493 states and 71617 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:52,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:52,696 INFO L93 Difference]: Finished difference Result 32103 states and 160920 transitions. [2021-06-05 21:03:52,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:52,696 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:52,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:52,798 INFO L225 Difference]: With dead ends: 32103 [2021-06-05 21:03:52,798 INFO L226 Difference]: Without dead ends: 31214 [2021-06-05 21:03:52,798 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:53,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31214 states. [2021-06-05 21:03:53,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31214 to 13369. [2021-06-05 21:03:53,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13368 states have (on average 5.315005984440455) internal successors, (71051), 13368 states have internal predecessors, (71051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71051 transitions. [2021-06-05 21:03:53,997 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71051 transitions. Word has length 33 [2021-06-05 21:03:53,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:53,997 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71051 transitions. [2021-06-05 21:03:53,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:53,997 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71051 transitions. [2021-06-05 21:03:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:54,025 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:54,025 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:54,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 21:03:54,026 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:54,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:54,026 INFO L82 PathProgramCache]: Analyzing trace with hash 800897999, now seen corresponding path program 89 times [2021-06-05 21:03:54,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:54,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613626465] [2021-06-05 21:03:54,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:54,171 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 21:03:54,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:54,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613626465] [2021-06-05 21:03:54,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613626465] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:54,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:54,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:54,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606461277] [2021-06-05 21:03:54,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:54,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:54,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:54,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:54,172 INFO L87 Difference]: Start difference. First operand 13369 states and 71051 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:54,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:54,391 INFO L93 Difference]: Finished difference Result 32498 states and 162741 transitions. [2021-06-05 21:03:54,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:54,391 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:54,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:54,773 INFO L225 Difference]: With dead ends: 32498 [2021-06-05 21:03:54,773 INFO L226 Difference]: Without dead ends: 31604 [2021-06-05 21:03:54,773 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 148.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:55,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31604 states. [2021-06-05 21:03:55,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31604 to 13624. [2021-06-05 21:03:55,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13624 states, 13623 states have (on average 5.290611465903252) internal successors, (72074), 13623 states have internal predecessors, (72074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:55,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13624 states to 13624 states and 72074 transitions. [2021-06-05 21:03:55,825 INFO L78 Accepts]: Start accepts. Automaton has 13624 states and 72074 transitions. Word has length 33 [2021-06-05 21:03:55,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:55,825 INFO L482 AbstractCegarLoop]: Abstraction has 13624 states and 72074 transitions. [2021-06-05 21:03:55,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:55,825 INFO L276 IsEmpty]: Start isEmpty. Operand 13624 states and 72074 transitions. [2021-06-05 21:03:55,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:55,854 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:55,854 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:55,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 21:03:55,854 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:55,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:55,854 INFO L82 PathProgramCache]: Analyzing trace with hash -45898963, now seen corresponding path program 90 times [2021-06-05 21:03:55,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:55,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568818889] [2021-06-05 21:03:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:55,986 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 21:03:55,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:55,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568818889] [2021-06-05 21:03:55,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568818889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:55,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:55,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:55,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395555235] [2021-06-05 21:03:55,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:55,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:55,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:55,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:55,987 INFO L87 Difference]: Start difference. First operand 13624 states and 72074 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:56,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:56,513 INFO L93 Difference]: Finished difference Result 32369 states and 161972 transitions. [2021-06-05 21:03:56,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:56,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:56,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:56,616 INFO L225 Difference]: With dead ends: 32369 [2021-06-05 21:03:56,617 INFO L226 Difference]: Without dead ends: 31223 [2021-06-05 21:03:56,617 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31223 states. [2021-06-05 21:03:57,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31223 to 13243. [2021-06-05 21:03:57,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.322609877661985) internal successors, (70482), 13242 states have internal predecessors, (70482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70482 transitions. [2021-06-05 21:03:57,700 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70482 transitions. Word has length 33 [2021-06-05 21:03:57,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:57,700 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70482 transitions. [2021-06-05 21:03:57,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:57,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70482 transitions. [2021-06-05 21:03:57,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:57,844 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:57,844 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:57,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 21:03:57,844 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:57,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:57,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1495430095, now seen corresponding path program 91 times [2021-06-05 21:03:57,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:57,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469525814] [2021-06-05 21:03:57,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:57,999 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 21:03:57,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:57,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469525814] [2021-06-05 21:03:57,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469525814] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:57,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:57,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:57,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588497056] [2021-06-05 21:03:58,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:58,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:58,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:58,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:58,000 INFO L87 Difference]: Start difference. First operand 13243 states and 70482 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:58,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:58,244 INFO L93 Difference]: Finished difference Result 32176 states and 161498 transitions. [2021-06-05 21:03:58,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:58,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:58,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:03:58,346 INFO L225 Difference]: With dead ends: 32176 [2021-06-05 21:03:58,346 INFO L226 Difference]: Without dead ends: 31441 [2021-06-05 21:03:58,346 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:03:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31441 states. [2021-06-05 21:03:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31441 to 13539. [2021-06-05 21:03:59,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 13538 states have (on average 5.311124242871916) internal successors, (71902), 13538 states have internal predecessors, (71902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 71902 transitions. [2021-06-05 21:03:59,539 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 71902 transitions. Word has length 33 [2021-06-05 21:03:59,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:03:59,539 INFO L482 AbstractCegarLoop]: Abstraction has 13539 states and 71902 transitions. [2021-06-05 21:03:59,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:59,539 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 71902 transitions. [2021-06-05 21:03:59,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:03:59,567 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:03:59,567 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:03:59,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 21:03:59,568 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:03:59,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:03:59,568 INFO L82 PathProgramCache]: Analyzing trace with hash 943677357, now seen corresponding path program 92 times [2021-06-05 21:03:59,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:03:59,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216641766] [2021-06-05 21:03:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:03:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:03:59,722 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 21:03:59,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:03:59,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216641766] [2021-06-05 21:03:59,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216641766] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:03:59,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:03:59,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:03:59,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798692061] [2021-06-05 21:03:59,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:03:59,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:03:59,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:03:59,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:03:59,723 INFO L87 Difference]: Start difference. First operand 13539 states and 71902 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:03:59,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:03:59,965 INFO L93 Difference]: Finished difference Result 32335 states and 162073 transitions. [2021-06-05 21:03:59,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:03:59,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:03:59,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:00,067 INFO L225 Difference]: With dead ends: 32335 [2021-06-05 21:04:00,067 INFO L226 Difference]: Without dead ends: 31265 [2021-06-05 21:04:00,067 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:00,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31265 states. [2021-06-05 21:04:01,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31265 to 13363. [2021-06-05 21:04:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.315820984882502) internal successors, (71030), 13362 states have internal predecessors, (71030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:01,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71030 transitions. [2021-06-05 21:04:01,240 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71030 transitions. Word has length 33 [2021-06-05 21:04:01,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:01,240 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71030 transitions. [2021-06-05 21:04:01,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:01,240 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71030 transitions. [2021-06-05 21:04:01,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:01,268 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:01,268 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:01,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 21:04:01,268 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:01,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:01,268 INFO L82 PathProgramCache]: Analyzing trace with hash -527631443, now seen corresponding path program 93 times [2021-06-05 21:04:01,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:01,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728673301] [2021-06-05 21:04:01,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:01,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:01,418 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:01,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728673301] [2021-06-05 21:04:01,418 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728673301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:01,418 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:01,418 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:01,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718478818] [2021-06-05 21:04:01,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:01,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:01,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:01,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:01,419 INFO L87 Difference]: Start difference. First operand 13363 states and 71030 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:01,673 INFO L93 Difference]: Finished difference Result 31983 states and 160512 transitions. [2021-06-05 21:04:01,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:01,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:01,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:01,773 INFO L225 Difference]: With dead ends: 31983 [2021-06-05 21:04:01,773 INFO L226 Difference]: Without dead ends: 31248 [2021-06-05 21:04:01,773 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:02,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31248 states. [2021-06-05 21:04:02,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31248 to 13475. [2021-06-05 21:04:02,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13475 states, 13474 states have (on average 5.306070951462075) internal successors, (71494), 13474 states have internal predecessors, (71494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:03,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13475 states to 13475 states and 71494 transitions. [2021-06-05 21:04:03,004 INFO L78 Accepts]: Start accepts. Automaton has 13475 states and 71494 transitions. Word has length 33 [2021-06-05 21:04:03,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:03,004 INFO L482 AbstractCegarLoop]: Abstraction has 13475 states and 71494 transitions. [2021-06-05 21:04:03,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:03,004 INFO L276 IsEmpty]: Start isEmpty. Operand 13475 states and 71494 transitions. [2021-06-05 21:04:03,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:03,032 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:03,032 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:03,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 21:04:03,032 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:03,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:03,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1028614099, now seen corresponding path program 94 times [2021-06-05 21:04:03,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:03,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887152204] [2021-06-05 21:04:03,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:03,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:03,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:03,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887152204] [2021-06-05 21:04:03,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887152204] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:03,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:03,191 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:03,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180286190] [2021-06-05 21:04:03,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:03,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:03,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:03,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:03,192 INFO L87 Difference]: Start difference. First operand 13475 states and 71494 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:03,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:03,417 INFO L93 Difference]: Finished difference Result 32013 states and 160509 transitions. [2021-06-05 21:04:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:03,417 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:03,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:03,514 INFO L225 Difference]: With dead ends: 32013 [2021-06-05 21:04:03,514 INFO L226 Difference]: Without dead ends: 31136 [2021-06-05 21:04:03,514 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:04,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31136 states. [2021-06-05 21:04:04,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31136 to 13363. [2021-06-05 21:04:04,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.311629995509654) internal successors, (70974), 13362 states have internal predecessors, (70974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70974 transitions. [2021-06-05 21:04:04,764 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70974 transitions. Word has length 33 [2021-06-05 21:04:04,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:04,764 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70974 transitions. [2021-06-05 21:04:04,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:04,765 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70974 transitions. [2021-06-05 21:04:04,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:04,793 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:04,793 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:04,793 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 21:04:04,793 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:04,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:04,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1019677557, now seen corresponding path program 95 times [2021-06-05 21:04:04,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:04,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282390946] [2021-06-05 21:04:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:04,938 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 21:04:04,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:04,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282390946] [2021-06-05 21:04:04,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282390946] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:04,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:04,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:04,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236964293] [2021-06-05 21:04:04,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:04,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:04,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:04,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:04,939 INFO L87 Difference]: Start difference. First operand 13363 states and 70974 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:05,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:05,308 INFO L93 Difference]: Finished difference Result 32444 states and 162468 transitions. [2021-06-05 21:04:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:05,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:05,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:05,414 INFO L225 Difference]: With dead ends: 32444 [2021-06-05 21:04:05,415 INFO L226 Difference]: Without dead ends: 31550 [2021-06-05 21:04:05,415 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 150.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:06,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31550 states. [2021-06-05 21:04:06,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31550 to 13618. [2021-06-05 21:04:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13618 states, 13617 states have (on average 5.28728794888742) internal successors, (71997), 13617 states have internal predecessors, (71997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13618 states to 13618 states and 71997 transitions. [2021-06-05 21:04:06,509 INFO L78 Accepts]: Start accepts. Automaton has 13618 states and 71997 transitions. Word has length 33 [2021-06-05 21:04:06,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:06,509 INFO L482 AbstractCegarLoop]: Abstraction has 13618 states and 71997 transitions. [2021-06-05 21:04:06,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:06,509 INFO L276 IsEmpty]: Start isEmpty. Operand 13618 states and 71997 transitions. [2021-06-05 21:04:06,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:06,537 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:06,537 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:06,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 21:04:06,537 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:06,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:06,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1500579603, now seen corresponding path program 96 times [2021-06-05 21:04:06,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:06,537 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642893571] [2021-06-05 21:04:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:06,684 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 21:04:06,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:06,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642893571] [2021-06-05 21:04:06,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642893571] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:06,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:06,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:06,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941914573] [2021-06-05 21:04:06,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:06,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:06,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:06,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:06,685 INFO L87 Difference]: Start difference. First operand 13618 states and 71997 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:07,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:07,053 INFO L93 Difference]: Finished difference Result 32315 states and 161699 transitions. [2021-06-05 21:04:07,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:07,053 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:07,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:07,159 INFO L225 Difference]: With dead ends: 32315 [2021-06-05 21:04:07,159 INFO L226 Difference]: Without dead ends: 31115 [2021-06-05 21:04:07,159 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:07,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31115 states. [2021-06-05 21:04:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31115 to 13183. [2021-06-05 21:04:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13183 states, 13182 states have (on average 5.328174783796086) internal successors, (70236), 13182 states have internal predecessors, (70236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:08,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70236 transitions. [2021-06-05 21:04:08,441 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70236 transitions. Word has length 33 [2021-06-05 21:04:08,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:08,441 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70236 transitions. [2021-06-05 21:04:08,441 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:08,441 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70236 transitions. [2021-06-05 21:04:08,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:08,470 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:08,470 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:08,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 21:04:08,470 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:08,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1956050737, now seen corresponding path program 97 times [2021-06-05 21:04:08,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:08,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937657866] [2021-06-05 21:04:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:08,625 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 21:04:08,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:08,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937657866] [2021-06-05 21:04:08,625 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937657866] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:08,625 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:08,625 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:08,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092962743] [2021-06-05 21:04:08,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:08,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:08,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:08,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:08,626 INFO L87 Difference]: Start difference. First operand 13183 states and 70236 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:08,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:08,865 INFO L93 Difference]: Finished difference Result 31850 states and 160181 transitions. [2021-06-05 21:04:08,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:08,866 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:08,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:08,973 INFO L225 Difference]: With dead ends: 31850 [2021-06-05 21:04:08,973 INFO L226 Difference]: Without dead ends: 31099 [2021-06-05 21:04:08,973 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:09,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31099 states. [2021-06-05 21:04:10,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31099 to 13443. [2021-06-05 21:04:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13443 states, 13442 states have (on average 5.322124683826812) internal successors, (71540), 13442 states have internal predecessors, (71540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:10,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13443 states to 13443 states and 71540 transitions. [2021-06-05 21:04:10,243 INFO L78 Accepts]: Start accepts. Automaton has 13443 states and 71540 transitions. Word has length 33 [2021-06-05 21:04:10,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:10,243 INFO L482 AbstractCegarLoop]: Abstraction has 13443 states and 71540 transitions. [2021-06-05 21:04:10,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:10,243 INFO L276 IsEmpty]: Start isEmpty. Operand 13443 states and 71540 transitions. [2021-06-05 21:04:10,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:10,271 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:10,271 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:10,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 21:04:10,272 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:10,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:10,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1109253775, now seen corresponding path program 98 times [2021-06-05 21:04:10,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:10,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116178686] [2021-06-05 21:04:10,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:10,425 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 21:04:10,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:10,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116178686] [2021-06-05 21:04:10,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116178686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:10,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:10,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:10,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237922665] [2021-06-05 21:04:10,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:10,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:10,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:10,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:10,426 INFO L87 Difference]: Start difference. First operand 13443 states and 71540 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:10,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:10,674 INFO L93 Difference]: Finished difference Result 31834 states and 160005 transitions. [2021-06-05 21:04:10,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:10,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:10,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:10,779 INFO L225 Difference]: With dead ends: 31834 [2021-06-05 21:04:10,779 INFO L226 Difference]: Without dead ends: 30987 [2021-06-05 21:04:10,779 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:11,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30987 states. [2021-06-05 21:04:11,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30987 to 13331. [2021-06-05 21:04:11,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13331 states, 13330 states have (on average 5.327831957989497) internal successors, (71020), 13330 states have internal predecessors, (71020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 71020 transitions. [2021-06-05 21:04:12,012 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 71020 transitions. Word has length 33 [2021-06-05 21:04:12,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:12,012 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 71020 transitions. [2021-06-05 21:04:12,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:12,013 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 71020 transitions. [2021-06-05 21:04:12,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:12,041 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:12,041 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:12,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 21:04:12,041 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:12,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:12,045 INFO L82 PathProgramCache]: Analyzing trace with hash 2646927, now seen corresponding path program 99 times [2021-06-05 21:04:12,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:12,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068893517] [2021-06-05 21:04:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:12,216 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 21:04:12,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:12,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068893517] [2021-06-05 21:04:12,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068893517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:12,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:12,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:12,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495224614] [2021-06-05 21:04:12,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:12,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:12,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:12,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:12,217 INFO L87 Difference]: Start difference. First operand 13331 states and 71020 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:12,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:12,462 INFO L93 Difference]: Finished difference Result 32081 states and 161168 transitions. [2021-06-05 21:04:12,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:12,462 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:12,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:12,563 INFO L225 Difference]: With dead ends: 32081 [2021-06-05 21:04:12,563 INFO L226 Difference]: Without dead ends: 31330 [2021-06-05 21:04:12,563 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 196.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:13,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31330 states. [2021-06-05 21:04:13,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31330 to 13515. [2021-06-05 21:04:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13515 states, 13514 states have (on average 5.315376646440728) internal successors, (71832), 13514 states have internal predecessors, (71832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:13,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13515 states to 13515 states and 71832 transitions. [2021-06-05 21:04:13,774 INFO L78 Accepts]: Start accepts. Automaton has 13515 states and 71832 transitions. Word has length 33 [2021-06-05 21:04:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:13,774 INFO L482 AbstractCegarLoop]: Abstraction has 13515 states and 71832 transitions. [2021-06-05 21:04:13,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:13,774 INFO L276 IsEmpty]: Start isEmpty. Operand 13515 states and 71832 transitions. [2021-06-05 21:04:13,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:13,802 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:13,802 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:13,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 21:04:13,803 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:13,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:13,803 INFO L82 PathProgramCache]: Analyzing trace with hash 58100623, now seen corresponding path program 100 times [2021-06-05 21:04:13,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:13,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7750336] [2021-06-05 21:04:13,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:13,980 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 21:04:13,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:13,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7750336] [2021-06-05 21:04:13,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7750336] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:13,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:13,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:13,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054150069] [2021-06-05 21:04:13,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:13,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:13,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:13,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:13,981 INFO L87 Difference]: Start difference. First operand 13515 states and 71832 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:14,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:14,206 INFO L93 Difference]: Finished difference Result 32224 states and 161671 transitions. [2021-06-05 21:04:14,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:14,207 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:14,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:14,308 INFO L225 Difference]: With dead ends: 32224 [2021-06-05 21:04:14,308 INFO L226 Difference]: Without dead ends: 31146 [2021-06-05 21:04:14,308 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:15,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31146 states. [2021-06-05 21:04:15,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31146 to 13331. [2021-06-05 21:04:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13331 states, 13330 states have (on average 5.3212303075768945) internal successors, (70932), 13330 states have internal predecessors, (70932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:15,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 70932 transitions. [2021-06-05 21:04:15,519 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 70932 transitions. Word has length 33 [2021-06-05 21:04:15,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:15,520 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 70932 transitions. [2021-06-05 21:04:15,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:15,520 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 70932 transitions. [2021-06-05 21:04:15,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:15,547 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:15,547 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:15,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 21:04:15,547 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:15,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:15,547 INFO L82 PathProgramCache]: Analyzing trace with hash -854101139, now seen corresponding path program 101 times [2021-06-05 21:04:15,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:15,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798251007] [2021-06-05 21:04:15,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:15,716 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 21:04:15,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:15,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798251007] [2021-06-05 21:04:15,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798251007] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:15,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:15,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:15,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540864692] [2021-06-05 21:04:15,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:15,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:15,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:15,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:15,717 INFO L87 Difference]: Start difference. First operand 13331 states and 70932 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:16,073 INFO L93 Difference]: Finished difference Result 32041 states and 160916 transitions. [2021-06-05 21:04:16,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:16,073 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:16,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:16,175 INFO L225 Difference]: With dead ends: 32041 [2021-06-05 21:04:16,175 INFO L226 Difference]: Without dead ends: 31306 [2021-06-05 21:04:16,175 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:16,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31306 states. [2021-06-05 21:04:17,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31306 to 13507. [2021-06-05 21:04:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13507 states, 13506 states have (on average 5.3099363245964755) internal successors, (71716), 13506 states have internal predecessors, (71716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:17,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 71716 transitions. [2021-06-05 21:04:17,287 INFO L78 Accepts]: Start accepts. Automaton has 13507 states and 71716 transitions. Word has length 33 [2021-06-05 21:04:17,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:17,287 INFO L482 AbstractCegarLoop]: Abstraction has 13507 states and 71716 transitions. [2021-06-05 21:04:17,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:17,287 INFO L276 IsEmpty]: Start isEmpty. Operand 13507 states and 71716 transitions. [2021-06-05 21:04:17,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:17,426 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:17,426 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:17,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 21:04:17,426 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:17,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:17,426 INFO L82 PathProgramCache]: Analyzing trace with hash -778566833, now seen corresponding path program 102 times [2021-06-05 21:04:17,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:17,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861161645] [2021-06-05 21:04:17,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:17,595 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 21:04:17,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:17,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861161645] [2021-06-05 21:04:17,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861161645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:17,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:17,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:17,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130424515] [2021-06-05 21:04:17,596 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:17,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:17,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:17,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:17,596 INFO L87 Difference]: Start difference. First operand 13507 states and 71716 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:17,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:17,811 INFO L93 Difference]: Finished difference Result 32200 states and 161491 transitions. [2021-06-05 21:04:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:17,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:17,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:17,921 INFO L225 Difference]: With dead ends: 32200 [2021-06-05 21:04:17,921 INFO L226 Difference]: Without dead ends: 31042 [2021-06-05 21:04:17,921 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31042 states. [2021-06-05 21:04:19,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31042 to 13243. [2021-06-05 21:04:19,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.326989880682676) internal successors, (70540), 13242 states have internal predecessors, (70540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70540 transitions. [2021-06-05 21:04:19,126 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70540 transitions. Word has length 33 [2021-06-05 21:04:19,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:19,126 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70540 transitions. [2021-06-05 21:04:19,126 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:19,126 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70540 transitions. [2021-06-05 21:04:19,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:19,154 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:19,154 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:19,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 21:04:19,154 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:19,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:19,154 INFO L82 PathProgramCache]: Analyzing trace with hash -880869489, now seen corresponding path program 103 times [2021-06-05 21:04:19,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:19,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861789946] [2021-06-05 21:04:19,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:19,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:19,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861789946] [2021-06-05 21:04:19,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861789946] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:19,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:19,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:19,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618486954] [2021-06-05 21:04:19,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:19,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:19,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:19,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:19,307 INFO L87 Difference]: Start difference. First operand 13243 states and 70540 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:19,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:19,537 INFO L93 Difference]: Finished difference Result 31561 states and 158743 transitions. [2021-06-05 21:04:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:19,537 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:19,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:19,640 INFO L225 Difference]: With dead ends: 31561 [2021-06-05 21:04:19,641 INFO L226 Difference]: Without dead ends: 30810 [2021-06-05 21:04:19,641 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:20,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30810 states. [2021-06-05 21:04:20,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30810 to 13411. [2021-06-05 21:04:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13411 states, 13410 states have (on average 5.3184190902311705) internal successors, (71320), 13410 states have internal predecessors, (71320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:20,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71320 transitions. [2021-06-05 21:04:20,845 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71320 transitions. Word has length 33 [2021-06-05 21:04:20,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:20,845 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71320 transitions. [2021-06-05 21:04:20,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71320 transitions. [2021-06-05 21:04:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:20,873 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:20,873 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:20,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 21:04:20,873 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:20,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:20,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1727666451, now seen corresponding path program 104 times [2021-06-05 21:04:20,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:20,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645662390] [2021-06-05 21:04:20,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:21,022 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 21:04:21,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:21,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645662390] [2021-06-05 21:04:21,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645662390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:21,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:21,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:21,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120240813] [2021-06-05 21:04:21,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:21,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:21,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:21,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:21,023 INFO L87 Difference]: Start difference. First operand 13411 states and 71320 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:21,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:21,276 INFO L93 Difference]: Finished difference Result 31545 states and 158567 transitions. [2021-06-05 21:04:21,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:21,276 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:21,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:21,374 INFO L225 Difference]: With dead ends: 31545 [2021-06-05 21:04:21,375 INFO L226 Difference]: Without dead ends: 30698 [2021-06-05 21:04:21,375 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:22,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30698 states. [2021-06-05 21:04:22,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30698 to 13299. [2021-06-05 21:04:22,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13299 states, 13298 states have (on average 5.32410888855467) internal successors, (70800), 13298 states have internal predecessors, (70800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:22,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70800 transitions. [2021-06-05 21:04:22,649 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70800 transitions. Word has length 33 [2021-06-05 21:04:22,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:22,649 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70800 transitions. [2021-06-05 21:04:22,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:22,649 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70800 transitions. [2021-06-05 21:04:22,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:22,678 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:22,678 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:22,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 21:04:22,679 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:22,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:22,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1288864753, now seen corresponding path program 105 times [2021-06-05 21:04:22,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:22,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085471010] [2021-06-05 21:04:22,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:22,842 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 21:04:22,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:22,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085471010] [2021-06-05 21:04:22,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085471010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:22,842 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:22,842 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:22,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370110864] [2021-06-05 21:04:22,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:22,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:22,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:22,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:22,843 INFO L87 Difference]: Start difference. First operand 13299 states and 70800 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:23,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:23,073 INFO L93 Difference]: Finished difference Result 31599 states and 158832 transitions. [2021-06-05 21:04:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:23,073 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:23,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:23,174 INFO L225 Difference]: With dead ends: 31599 [2021-06-05 21:04:23,174 INFO L226 Difference]: Without dead ends: 30848 [2021-06-05 21:04:23,175 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:24,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30848 states. [2021-06-05 21:04:24,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30848 to 13419. [2021-06-05 21:04:24,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.3131614249515575) internal successors, (71292), 13418 states have internal predecessors, (71292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:24,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71292 transitions. [2021-06-05 21:04:24,418 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71292 transitions. Word has length 33 [2021-06-05 21:04:24,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:24,419 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71292 transitions. [2021-06-05 21:04:24,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:24,419 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71292 transitions. [2021-06-05 21:04:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:24,447 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:24,447 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:24,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 21:04:24,447 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:24,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:24,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1099215887, now seen corresponding path program 106 times [2021-06-05 21:04:24,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:24,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567528585] [2021-06-05 21:04:24,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:24,617 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 21:04:24,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:24,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567528585] [2021-06-05 21:04:24,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567528585] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:24,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:24,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:24,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378476269] [2021-06-05 21:04:24,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:24,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:24,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:24,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:24,618 INFO L87 Difference]: Start difference. First operand 13419 states and 71292 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:24,850 INFO L93 Difference]: Finished difference Result 31613 states and 158757 transitions. [2021-06-05 21:04:24,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:24,851 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:24,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:25,169 INFO L225 Difference]: With dead ends: 31613 [2021-06-05 21:04:25,170 INFO L226 Difference]: Without dead ends: 30728 [2021-06-05 21:04:25,170 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:25,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30728 states. [2021-06-05 21:04:26,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30728 to 13299. [2021-06-05 21:04:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13299 states, 13298 states have (on average 5.319897728981802) internal successors, (70744), 13298 states have internal predecessors, (70744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:26,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70744 transitions. [2021-06-05 21:04:26,246 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70744 transitions. Word has length 33 [2021-06-05 21:04:26,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:26,246 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70744 transitions. [2021-06-05 21:04:26,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70744 transitions. [2021-06-05 21:04:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:26,274 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:26,274 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:26,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 21:04:26,274 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:26,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:26,275 INFO L82 PathProgramCache]: Analyzing trace with hash -2145612819, now seen corresponding path program 107 times [2021-06-05 21:04:26,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:26,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935909527] [2021-06-05 21:04:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:26,448 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 21:04:26,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:26,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935909527] [2021-06-05 21:04:26,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935909527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:26,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:26,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:26,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963166054] [2021-06-05 21:04:26,448 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:26,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:26,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:26,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:26,449 INFO L87 Difference]: Start difference. First operand 13299 states and 70744 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:26,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:26,830 INFO L93 Difference]: Finished difference Result 31559 states and 158612 transitions. [2021-06-05 21:04:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:26,830 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:26,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:26,930 INFO L225 Difference]: With dead ends: 31559 [2021-06-05 21:04:26,930 INFO L226 Difference]: Without dead ends: 30824 [2021-06-05 21:04:26,931 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:27,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30824 states. [2021-06-05 21:04:27,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30824 to 13411. [2021-06-05 21:04:27,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13411 states, 13410 states have (on average 5.31006711409396) internal successors, (71208), 13410 states have internal predecessors, (71208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:28,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71208 transitions. [2021-06-05 21:04:28,213 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71208 transitions. Word has length 33 [2021-06-05 21:04:28,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:28,213 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71208 transitions. [2021-06-05 21:04:28,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:28,213 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71208 transitions. [2021-06-05 21:04:28,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:28,242 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:28,242 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:28,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 21:04:28,242 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:28,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:28,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1531831119, now seen corresponding path program 108 times [2021-06-05 21:04:28,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:28,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010375297] [2021-06-05 21:04:28,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:28,406 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 21:04:28,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:28,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010375297] [2021-06-05 21:04:28,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010375297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:28,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:28,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:28,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507916937] [2021-06-05 21:04:28,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:28,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:28,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:28,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:28,407 INFO L87 Difference]: Start difference. First operand 13411 states and 71208 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:28,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:28,670 INFO L93 Difference]: Finished difference Result 31589 states and 158609 transitions. [2021-06-05 21:04:28,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:28,670 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:28,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:28,773 INFO L225 Difference]: With dead ends: 31589 [2021-06-05 21:04:28,773 INFO L226 Difference]: Without dead ends: 30656 [2021-06-05 21:04:28,773 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 188.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:29,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30656 states. [2021-06-05 21:04:29,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30656 to 13243. [2021-06-05 21:04:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.3248753964657904) internal successors, (70512), 13242 states have internal predecessors, (70512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:29,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70512 transitions. [2021-06-05 21:04:29,991 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70512 transitions. Word has length 33 [2021-06-05 21:04:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:29,991 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70512 transitions. [2021-06-05 21:04:29,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70512 transitions. [2021-06-05 21:04:30,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:30,018 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:30,019 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:30,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 21:04:30,019 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:30,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:30,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1290782483, now seen corresponding path program 109 times [2021-06-05 21:04:30,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:30,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328116501] [2021-06-05 21:04:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:30,192 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 21:04:30,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:30,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328116501] [2021-06-05 21:04:30,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328116501] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:30,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:30,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:30,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513458644] [2021-06-05 21:04:30,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:30,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:30,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:30,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:30,193 INFO L87 Difference]: Start difference. First operand 13243 states and 70512 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:30,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:30,424 INFO L93 Difference]: Finished difference Result 32234 states and 161779 transitions. [2021-06-05 21:04:30,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:30,425 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:30,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:30,525 INFO L225 Difference]: With dead ends: 32234 [2021-06-05 21:04:30,525 INFO L226 Difference]: Without dead ends: 31483 [2021-06-05 21:04:30,525 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 188.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:31,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31483 states. [2021-06-05 21:04:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31483 to 13551. [2021-06-05 21:04:31,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13551 states, 13550 states have (on average 5.312177121771218) internal successors, (71980), 13550 states have internal predecessors, (71980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:31,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13551 states to 13551 states and 71980 transitions. [2021-06-05 21:04:31,729 INFO L78 Accepts]: Start accepts. Automaton has 13551 states and 71980 transitions. Word has length 33 [2021-06-05 21:04:31,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:31,729 INFO L482 AbstractCegarLoop]: Abstraction has 13551 states and 71980 transitions. [2021-06-05 21:04:31,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:31,729 INFO L276 IsEmpty]: Start isEmpty. Operand 13551 states and 71980 transitions. [2021-06-05 21:04:31,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:31,757 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:31,757 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:31,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 21:04:31,757 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:31,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:31,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1235328787, now seen corresponding path program 110 times [2021-06-05 21:04:31,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:31,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245786007] [2021-06-05 21:04:31,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:31,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:31,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:31,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245786007] [2021-06-05 21:04:31,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245786007] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:31,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:31,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:31,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440262048] [2021-06-05 21:04:31,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:31,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:31,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:31,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:31,925 INFO L87 Difference]: Start difference. First operand 13551 states and 71980 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:32,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:32,160 INFO L93 Difference]: Finished difference Result 32377 states and 162282 transitions. [2021-06-05 21:04:32,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:32,160 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:32,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:32,259 INFO L225 Difference]: With dead ends: 32377 [2021-06-05 21:04:32,260 INFO L226 Difference]: Without dead ends: 31299 [2021-06-05 21:04:32,260 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:33,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31299 states. [2021-06-05 21:04:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31299 to 13367. [2021-06-05 21:04:33,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13367 states, 13366 states have (on average 5.317671704324405) internal successors, (71076), 13366 states have internal predecessors, (71076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:33,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 71076 transitions. [2021-06-05 21:04:33,461 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 71076 transitions. Word has length 33 [2021-06-05 21:04:33,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:33,462 INFO L482 AbstractCegarLoop]: Abstraction has 13367 states and 71076 transitions. [2021-06-05 21:04:33,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:33,462 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 71076 transitions. [2021-06-05 21:04:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:33,489 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:33,490 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:33,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 21:04:33,490 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:33,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:33,490 INFO L82 PathProgramCache]: Analyzing trace with hash 418819279, now seen corresponding path program 111 times [2021-06-05 21:04:33,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:33,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132296831] [2021-06-05 21:04:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:33,680 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 21:04:33,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:33,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132296831] [2021-06-05 21:04:33,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132296831] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:33,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:33,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:33,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85626201] [2021-06-05 21:04:33,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:33,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:33,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:33,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:33,681 INFO L87 Difference]: Start difference. First operand 13367 states and 71076 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:33,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:33,914 INFO L93 Difference]: Finished difference Result 32041 states and 160789 transitions. [2021-06-05 21:04:33,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:33,914 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:33,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:34,014 INFO L225 Difference]: With dead ends: 32041 [2021-06-05 21:04:34,014 INFO L226 Difference]: Without dead ends: 31290 [2021-06-05 21:04:34,014 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 215.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:34,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31290 states. [2021-06-05 21:04:35,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31290 to 13487. [2021-06-05 21:04:35,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13487 states, 13486 states have (on average 5.306836719561026) internal successors, (71568), 13486 states have internal predecessors, (71568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13487 states to 13487 states and 71568 transitions. [2021-06-05 21:04:35,260 INFO L78 Accepts]: Start accepts. Automaton has 13487 states and 71568 transitions. Word has length 33 [2021-06-05 21:04:35,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:35,260 INFO L482 AbstractCegarLoop]: Abstraction has 13487 states and 71568 transitions. [2021-06-05 21:04:35,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:35,261 INFO L276 IsEmpty]: Start isEmpty. Operand 13487 states and 71568 transitions. [2021-06-05 21:04:35,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:35,289 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:35,289 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:35,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 21:04:35,289 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:35,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:35,289 INFO L82 PathProgramCache]: Analyzing trace with hash 778862829, now seen corresponding path program 112 times [2021-06-05 21:04:35,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:35,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005691483] [2021-06-05 21:04:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:35,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:35,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:35,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005691483] [2021-06-05 21:04:35,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005691483] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:35,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:35,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:35,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499681734] [2021-06-05 21:04:35,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:35,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:35,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:35,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:35,459 INFO L87 Difference]: Start difference. First operand 13487 states and 71568 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:35,833 INFO L93 Difference]: Finished difference Result 32055 states and 160714 transitions. [2021-06-05 21:04:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:35,833 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:35,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:35,936 INFO L225 Difference]: With dead ends: 32055 [2021-06-05 21:04:35,937 INFO L226 Difference]: Without dead ends: 31170 [2021-06-05 21:04:35,937 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 200.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:36,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31170 states. [2021-06-05 21:04:36,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31170 to 13367. [2021-06-05 21:04:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13367 states, 13366 states have (on average 5.313182702379171) internal successors, (71016), 13366 states have internal predecessors, (71016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 71016 transitions. [2021-06-05 21:04:37,017 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 71016 transitions. Word has length 33 [2021-06-05 21:04:37,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:37,018 INFO L482 AbstractCegarLoop]: Abstraction has 13367 states and 71016 transitions. [2021-06-05 21:04:37,018 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:37,018 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 71016 transitions. [2021-06-05 21:04:37,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:37,045 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:37,045 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:37,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 21:04:37,045 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:37,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:37,045 INFO L82 PathProgramCache]: Analyzing trace with hash 197630189, now seen corresponding path program 113 times [2021-06-05 21:04:37,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:37,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750555972] [2021-06-05 21:04:37,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:37,231 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-06-05 21:04:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:37,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:37,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750555972] [2021-06-05 21:04:37,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750555972] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:37,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:37,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:37,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060723610] [2021-06-05 21:04:37,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:37,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:37,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:37,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:37,306 INFO L87 Difference]: Start difference. First operand 13367 states and 71016 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:37,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:37,520 INFO L93 Difference]: Finished difference Result 32462 states and 162577 transitions. [2021-06-05 21:04:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:37,520 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:37,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:37,621 INFO L225 Difference]: With dead ends: 32462 [2021-06-05 21:04:37,622 INFO L226 Difference]: Without dead ends: 31568 [2021-06-05 21:04:37,622 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 265.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:38,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31568 states. [2021-06-05 21:04:38,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31568 to 13622. [2021-06-05 21:04:38,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13622 states, 13621 states have (on average 5.28881873577564) internal successors, (72039), 13621 states have internal predecessors, (72039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13622 states to 13622 states and 72039 transitions. [2021-06-05 21:04:38,863 INFO L78 Accepts]: Start accepts. Automaton has 13622 states and 72039 transitions. Word has length 33 [2021-06-05 21:04:38,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:38,863 INFO L482 AbstractCegarLoop]: Abstraction has 13622 states and 72039 transitions. [2021-06-05 21:04:38,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:38,863 INFO L276 IsEmpty]: Start isEmpty. Operand 13622 states and 72039 transitions. [2021-06-05 21:04:38,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:38,891 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:38,891 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:38,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 21:04:38,892 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:38,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:38,892 INFO L82 PathProgramCache]: Analyzing trace with hash -283271857, now seen corresponding path program 114 times [2021-06-05 21:04:38,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:38,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728334463] [2021-06-05 21:04:38,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:39,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:39,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728334463] [2021-06-05 21:04:39,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728334463] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:39,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:39,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:39,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733856970] [2021-06-05 21:04:39,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:39,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:39,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:39,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:39,049 INFO L87 Difference]: Start difference. First operand 13622 states and 72039 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:39,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:39,282 INFO L93 Difference]: Finished difference Result 32333 states and 161808 transitions. [2021-06-05 21:04:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:39,283 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:39,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:39,384 INFO L225 Difference]: With dead ends: 32333 [2021-06-05 21:04:39,385 INFO L226 Difference]: Without dead ends: 31189 [2021-06-05 21:04:39,385 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31189 states. [2021-06-05 21:04:40,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31189 to 13243. [2021-06-05 21:04:40,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13243 states, 13242 states have (on average 5.320344358858178) internal successors, (70452), 13242 states have internal predecessors, (70452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70452 transitions. [2021-06-05 21:04:40,606 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70452 transitions. Word has length 33 [2021-06-05 21:04:40,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:40,606 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70452 transitions. [2021-06-05 21:04:40,606 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70452 transitions. [2021-06-05 21:04:40,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:40,633 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:40,633 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:40,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 21:04:40,634 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:40,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:40,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1174360395, now seen corresponding path program 115 times [2021-06-05 21:04:40,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:40,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534054018] [2021-06-05 21:04:40,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:40,796 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 21:04:40,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:40,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534054018] [2021-06-05 21:04:40,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534054018] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:40,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:40,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:40,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261347715] [2021-06-05 21:04:40,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:40,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:40,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:40,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:40,797 INFO L87 Difference]: Start difference. First operand 13243 states and 70452 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:41,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:41,037 INFO L93 Difference]: Finished difference Result 32158 states and 161399 transitions. [2021-06-05 21:04:41,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:41,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:41,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:41,138 INFO L225 Difference]: With dead ends: 32158 [2021-06-05 21:04:41,138 INFO L226 Difference]: Without dead ends: 31423 [2021-06-05 21:04:41,138 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31423 states. [2021-06-05 21:04:42,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31423 to 13539. [2021-06-05 21:04:42,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 13538 states have (on average 5.308908258236076) internal successors, (71872), 13538 states have internal predecessors, (71872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:42,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 71872 transitions. [2021-06-05 21:04:42,337 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 71872 transitions. Word has length 33 [2021-06-05 21:04:42,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:42,337 INFO L482 AbstractCegarLoop]: Abstraction has 13539 states and 71872 transitions. [2021-06-05 21:04:42,337 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 71872 transitions. [2021-06-05 21:04:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:42,365 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:42,365 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:42,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 21:04:42,365 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:42,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:42,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1249894701, now seen corresponding path program 116 times [2021-06-05 21:04:42,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:42,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022630045] [2021-06-05 21:04:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:42,529 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 21:04:42,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:42,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022630045] [2021-06-05 21:04:42,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022630045] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:42,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:42,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:42,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910644249] [2021-06-05 21:04:42,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:42,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:42,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:42,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:42,530 INFO L87 Difference]: Start difference. First operand 13539 states and 71872 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:42,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:42,745 INFO L93 Difference]: Finished difference Result 32317 states and 161974 transitions. [2021-06-05 21:04:42,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:42,745 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:42,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:42,844 INFO L225 Difference]: With dead ends: 32317 [2021-06-05 21:04:42,844 INFO L226 Difference]: Without dead ends: 31247 [2021-06-05 21:04:42,844 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:43,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31247 states. [2021-06-05 21:04:44,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31247 to 13363. [2021-06-05 21:04:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.313575812004191) internal successors, (71000), 13362 states have internal predecessors, (71000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71000 transitions. [2021-06-05 21:04:44,088 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71000 transitions. Word has length 33 [2021-06-05 21:04:44,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:44,088 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71000 transitions. [2021-06-05 21:04:44,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:44,088 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71000 transitions. [2021-06-05 21:04:44,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:44,116 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:44,116 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:44,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 21:04:44,116 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:44,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:44,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1411005139, now seen corresponding path program 117 times [2021-06-05 21:04:44,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:44,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103071396] [2021-06-05 21:04:44,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:44,273 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 21:04:44,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:44,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103071396] [2021-06-05 21:04:44,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103071396] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:44,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:44,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:44,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391984527] [2021-06-05 21:04:44,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:44,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:44,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:44,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:44,274 INFO L87 Difference]: Start difference. First operand 13363 states and 71000 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:44,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:44,508 INFO L93 Difference]: Finished difference Result 31965 states and 160413 transitions. [2021-06-05 21:04:44,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:44,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:44,785 INFO L225 Difference]: With dead ends: 31965 [2021-06-05 21:04:44,785 INFO L226 Difference]: Without dead ends: 31230 [2021-06-05 21:04:44,785 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:45,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31230 states. [2021-06-05 21:04:45,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31230 to 13475. [2021-06-05 21:04:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13475 states, 13474 states have (on average 5.303844441145911) internal successors, (71464), 13474 states have internal predecessors, (71464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13475 states to 13475 states and 71464 transitions. [2021-06-05 21:04:45,852 INFO L78 Accepts]: Start accepts. Automaton has 13475 states and 71464 transitions. Word has length 33 [2021-06-05 21:04:45,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:45,852 INFO L482 AbstractCegarLoop]: Abstraction has 13475 states and 71464 transitions. [2021-06-05 21:04:45,853 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 13475 states and 71464 transitions. [2021-06-05 21:04:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:45,880 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:45,880 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:45,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 21:04:45,881 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:45,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:45,881 INFO L82 PathProgramCache]: Analyzing trace with hash 238401709, now seen corresponding path program 118 times [2021-06-05 21:04:45,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:45,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217629774] [2021-06-05 21:04:45,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:46,066 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 21:04:46,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:46,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217629774] [2021-06-05 21:04:46,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217629774] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:46,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:46,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:46,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112284090] [2021-06-05 21:04:46,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:46,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:46,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:46,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:46,067 INFO L87 Difference]: Start difference. First operand 13475 states and 71464 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:46,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:46,462 INFO L93 Difference]: Finished difference Result 31995 states and 160410 transitions. [2021-06-05 21:04:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:46,462 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:46,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:46,564 INFO L225 Difference]: With dead ends: 31995 [2021-06-05 21:04:46,565 INFO L226 Difference]: Without dead ends: 31118 [2021-06-05 21:04:46,565 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 212.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:47,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31118 states. [2021-06-05 21:04:47,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31118 to 13363. [2021-06-05 21:04:47,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.309384822631342) internal successors, (70944), 13362 states have internal predecessors, (70944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:47,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70944 transitions. [2021-06-05 21:04:47,833 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70944 transitions. Word has length 33 [2021-06-05 21:04:47,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:47,833 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70944 transitions. [2021-06-05 21:04:47,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:47,833 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70944 transitions. [2021-06-05 21:04:47,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:47,862 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:47,862 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:47,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 21:04:47,862 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:47,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:47,863 INFO L82 PathProgramCache]: Analyzing trace with hash 515434511, now seen corresponding path program 119 times [2021-06-05 21:04:47,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:47,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656383959] [2021-06-05 21:04:47,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:48,012 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 21:04:48,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:48,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656383959] [2021-06-05 21:04:48,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656383959] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:48,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:48,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:48,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761630584] [2021-06-05 21:04:48,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:48,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:48,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:48,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:48,013 INFO L87 Difference]: Start difference. First operand 13363 states and 70944 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:48,259 INFO L93 Difference]: Finished difference Result 32426 states and 162369 transitions. [2021-06-05 21:04:48,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:48,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:48,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:48,362 INFO L225 Difference]: With dead ends: 32426 [2021-06-05 21:04:48,362 INFO L226 Difference]: Without dead ends: 31532 [2021-06-05 21:04:48,362 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:49,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31532 states. [2021-06-05 21:04:49,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31532 to 13618. [2021-06-05 21:04:49,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13618 states, 13617 states have (on average 5.285084820445032) internal successors, (71967), 13617 states have internal predecessors, (71967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:49,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13618 states to 13618 states and 71967 transitions. [2021-06-05 21:04:49,609 INFO L78 Accepts]: Start accepts. Automaton has 13618 states and 71967 transitions. Word has length 33 [2021-06-05 21:04:49,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:49,609 INFO L482 AbstractCegarLoop]: Abstraction has 13618 states and 71967 transitions. [2021-06-05 21:04:49,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 13618 states and 71967 transitions. [2021-06-05 21:04:49,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:49,638 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:49,638 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:49,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 21:04:49,638 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:49,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:49,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1507627027, now seen corresponding path program 120 times [2021-06-05 21:04:49,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:49,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480795131] [2021-06-05 21:04:49,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:49,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:49,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:49,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480795131] [2021-06-05 21:04:49,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480795131] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:49,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:49,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:49,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227643732] [2021-06-05 21:04:49,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:49,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:49,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:49,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:49,796 INFO L87 Difference]: Start difference. First operand 13618 states and 71967 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:50,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:50,038 INFO L93 Difference]: Finished difference Result 32297 states and 161600 transitions. [2021-06-05 21:04:50,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:50,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:50,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:50,138 INFO L225 Difference]: With dead ends: 32297 [2021-06-05 21:04:50,138 INFO L226 Difference]: Without dead ends: 31067 [2021-06-05 21:04:50,139 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:50,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31067 states. [2021-06-05 21:04:51,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31067 to 13153. [2021-06-05 21:04:51,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13153 states, 13152 states have (on average 5.3321167883211675) internal successors, (70128), 13152 states have internal predecessors, (70128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:51,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 70128 transitions. [2021-06-05 21:04:51,334 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 70128 transitions. Word has length 33 [2021-06-05 21:04:51,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:51,334 INFO L482 AbstractCegarLoop]: Abstraction has 13153 states and 70128 transitions. [2021-06-05 21:04:51,334 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:51,334 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 70128 transitions. [2021-06-05 21:04:51,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:51,362 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:51,362 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:51,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 21:04:51,362 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:51,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:51,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1339904913, now seen corresponding path program 121 times [2021-06-05 21:04:51,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:51,363 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491195459] [2021-06-05 21:04:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:51,513 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 21:04:51,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:51,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491195459] [2021-06-05 21:04:51,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491195459] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:51,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:51,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:51,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019229345] [2021-06-05 21:04:51,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:51,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:51,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:51,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:51,516 INFO L87 Difference]: Start difference. First operand 13153 states and 70128 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:51,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:51,746 INFO L93 Difference]: Finished difference Result 31566 states and 158987 transitions. [2021-06-05 21:04:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:51,747 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:51,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:51,849 INFO L225 Difference]: With dead ends: 31566 [2021-06-05 21:04:51,849 INFO L226 Difference]: Without dead ends: 30807 [2021-06-05 21:04:51,849 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:52,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30807 states. [2021-06-05 21:04:53,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30807 to 13431. [2021-06-05 21:04:53,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13431 states, 13430 states have (on average 5.3272524199553235) internal successors, (71545), 13430 states have internal predecessors, (71545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13431 states to 13431 states and 71545 transitions. [2021-06-05 21:04:53,077 INFO L78 Accepts]: Start accepts. Automaton has 13431 states and 71545 transitions. Word has length 33 [2021-06-05 21:04:53,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:53,078 INFO L482 AbstractCegarLoop]: Abstraction has 13431 states and 71545 transitions. [2021-06-05 21:04:53,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:53,078 INFO L276 IsEmpty]: Start isEmpty. Operand 13431 states and 71545 transitions. [2021-06-05 21:04:53,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:53,106 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:53,106 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:53,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 21:04:53,106 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:53,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:53,106 INFO L82 PathProgramCache]: Analyzing trace with hash -258842287, now seen corresponding path program 122 times [2021-06-05 21:04:53,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:53,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118003672] [2021-06-05 21:04:53,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:53,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:53,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118003672] [2021-06-05 21:04:53,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118003672] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:53,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:53,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:53,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567811062] [2021-06-05 21:04:53,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:53,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:53,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:53,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:53,265 INFO L87 Difference]: Start difference. First operand 13431 states and 71545 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:53,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:53,506 INFO L93 Difference]: Finished difference Result 31558 states and 158839 transitions. [2021-06-05 21:04:53,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:53,506 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:53,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:53,604 INFO L225 Difference]: With dead ends: 31558 [2021-06-05 21:04:53,604 INFO L226 Difference]: Without dead ends: 30687 [2021-06-05 21:04:53,604 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:54,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30687 states. [2021-06-05 21:04:54,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30687 to 13311. [2021-06-05 21:04:54,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 13310 states have (on average 5.333809166040571) internal successors, (70993), 13310 states have internal predecessors, (70993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:54,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70993 transitions. [2021-06-05 21:04:54,813 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70993 transitions. Word has length 33 [2021-06-05 21:04:54,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:54,814 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70993 transitions. [2021-06-05 21:04:54,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70993 transitions. [2021-06-05 21:04:54,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:54,841 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:54,842 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:54,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 21:04:54,842 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:54,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:54,842 INFO L82 PathProgramCache]: Analyzing trace with hash 379159663, now seen corresponding path program 123 times [2021-06-05 21:04:54,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:54,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730125451] [2021-06-05 21:04:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:55,010 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 21:04:55,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:55,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730125451] [2021-06-05 21:04:55,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730125451] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:55,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:55,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:55,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528101653] [2021-06-05 21:04:55,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:55,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:55,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:55,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:55,011 INFO L87 Difference]: Start difference. First operand 13311 states and 70993 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:55,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:55,410 INFO L93 Difference]: Finished difference Result 31777 states and 159886 transitions. [2021-06-05 21:04:55,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:55,411 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:55,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:55,512 INFO L225 Difference]: With dead ends: 31777 [2021-06-05 21:04:55,512 INFO L226 Difference]: Without dead ends: 31018 [2021-06-05 21:04:55,513 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 191.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:56,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31018 states. [2021-06-05 21:04:56,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31018 to 13499. [2021-06-05 21:04:56,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13499 states, 13498 states have (on average 5.320566009779227) internal successors, (71817), 13498 states have internal predecessors, (71817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13499 states to 13499 states and 71817 transitions. [2021-06-05 21:04:56,601 INFO L78 Accepts]: Start accepts. Automaton has 13499 states and 71817 transitions. Word has length 33 [2021-06-05 21:04:56,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:56,601 INFO L482 AbstractCegarLoop]: Abstraction has 13499 states and 71817 transitions. [2021-06-05 21:04:56,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:56,601 INFO L276 IsEmpty]: Start isEmpty. Operand 13499 states and 71817 transitions. [2021-06-05 21:04:56,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:56,629 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:56,629 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:56,629 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 21:04:56,630 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:56,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:56,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1148931183, now seen corresponding path program 124 times [2021-06-05 21:04:56,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:56,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211445245] [2021-06-05 21:04:56,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:56,885 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-06-05 21:04:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:56,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:56,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211445245] [2021-06-05 21:04:56,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211445245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:56,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:56,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:56,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123354581] [2021-06-05 21:04:56,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:56,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:56,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:56,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:56,911 INFO L87 Difference]: Start difference. First operand 13499 states and 71817 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:57,152 INFO L93 Difference]: Finished difference Result 31912 states and 160357 transitions. [2021-06-05 21:04:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:57,152 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:57,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:57,253 INFO L225 Difference]: With dead ends: 31912 [2021-06-05 21:04:57,254 INFO L226 Difference]: Without dead ends: 30830 [2021-06-05 21:04:57,254 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 285.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:57,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30830 states. [2021-06-05 21:04:58,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30830 to 13311. [2021-06-05 21:04:58,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 13310 states have (on average 5.326897069872277) internal successors, (70901), 13310 states have internal predecessors, (70901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:58,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70901 transitions. [2021-06-05 21:04:58,507 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70901 transitions. Word has length 33 [2021-06-05 21:04:58,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:04:58,507 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70901 transitions. [2021-06-05 21:04:58,507 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:58,507 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70901 transitions. [2021-06-05 21:04:58,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:04:58,536 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:04:58,536 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:04:58,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 21:04:58,536 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:04:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:04:58,536 INFO L82 PathProgramCache]: Analyzing trace with hash 767164625, now seen corresponding path program 125 times [2021-06-05 21:04:58,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:04:58,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487700369] [2021-06-05 21:04:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:04:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:04:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:04:58,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:04:58,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487700369] [2021-06-05 21:04:58,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487700369] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:04:58,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:04:58,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:04:58,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757467116] [2021-06-05 21:04:58,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:04:58,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:04:58,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:04:58,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:04:58,702 INFO L87 Difference]: Start difference. First operand 13311 states and 70901 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:04:58,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:04:58,939 INFO L93 Difference]: Finished difference Result 31757 states and 159722 transitions. [2021-06-05 21:04:58,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:04:58,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:04:58,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:04:59,039 INFO L225 Difference]: With dead ends: 31757 [2021-06-05 21:04:59,039 INFO L226 Difference]: Without dead ends: 31006 [2021-06-05 21:04:59,039 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:04:59,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31006 states. [2021-06-05 21:05:00,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31006 to 13495. [2021-06-05 21:05:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.314436045649918) internal successors, (71713), 13494 states have internal predecessors, (71713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71713 transitions. [2021-06-05 21:05:00,252 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71713 transitions. Word has length 33 [2021-06-05 21:05:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:00,252 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71713 transitions. [2021-06-05 21:05:00,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71713 transitions. [2021-06-05 21:05:00,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:00,280 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:00,280 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:00,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 21:05:00,280 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:00,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:00,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1053870801, now seen corresponding path program 126 times [2021-06-05 21:05:00,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:00,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583544100] [2021-06-05 21:05:00,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:00,457 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 21:05:00,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:00,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583544100] [2021-06-05 21:05:00,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583544100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:00,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:00,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:00,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905209785] [2021-06-05 21:05:00,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:00,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:00,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:00,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:00,458 INFO L87 Difference]: Start difference. First operand 13495 states and 71713 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:00,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:00,682 INFO L93 Difference]: Finished difference Result 31900 states and 160225 transitions. [2021-06-05 21:05:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:00,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:00,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:00,781 INFO L225 Difference]: With dead ends: 31900 [2021-06-05 21:05:00,781 INFO L226 Difference]: Without dead ends: 30730 [2021-06-05 21:05:00,781 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:01,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30730 states. [2021-06-05 21:05:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30730 to 13219. [2021-06-05 21:05:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.333408987743986) internal successors, (70497), 13218 states have internal predecessors, (70497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:02,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70497 transitions. [2021-06-05 21:05:02,000 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70497 transitions. Word has length 33 [2021-06-05 21:05:02,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:02,001 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70497 transitions. [2021-06-05 21:05:02,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:02,001 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70497 transitions. [2021-06-05 21:05:02,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:02,029 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:02,029 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:02,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 21:05:02,029 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:02,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:02,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2079249163, now seen corresponding path program 127 times [2021-06-05 21:05:02,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:02,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624679187] [2021-06-05 21:05:02,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:02,196 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 21:05:02,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:02,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624679187] [2021-06-05 21:05:02,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624679187] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:02,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:02,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:02,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798011267] [2021-06-05 21:05:02,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:02,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:02,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:02,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:02,197 INFO L87 Difference]: Start difference. First operand 13219 states and 70497 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:02,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:02,440 INFO L93 Difference]: Finished difference Result 31223 states and 157332 transitions. [2021-06-05 21:05:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:02,441 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:02,543 INFO L225 Difference]: With dead ends: 31223 [2021-06-05 21:05:02,543 INFO L226 Difference]: Without dead ends: 30464 [2021-06-05 21:05:02,543 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:03,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30464 states. [2021-06-05 21:05:03,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30464 to 13395. [2021-06-05 21:05:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.323652381663432) internal successors, (71305), 13394 states have internal predecessors, (71305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:03,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71305 transitions. [2021-06-05 21:05:03,736 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71305 transitions. Word has length 33 [2021-06-05 21:05:03,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:03,736 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71305 transitions. [2021-06-05 21:05:03,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71305 transitions. [2021-06-05 21:05:03,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:03,765 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:03,765 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:03,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 21:05:03,765 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:03,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:03,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1134655507, now seen corresponding path program 128 times [2021-06-05 21:05:03,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:03,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307047861] [2021-06-05 21:05:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:03,915 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 21:05:03,916 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:03,916 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307047861] [2021-06-05 21:05:03,916 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307047861] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:03,916 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:03,916 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:03,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467066779] [2021-06-05 21:05:03,916 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:03,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:03,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:03,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:03,916 INFO L87 Difference]: Start difference. First operand 13395 states and 71305 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:04,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:04,192 INFO L93 Difference]: Finished difference Result 31215 states and 157184 transitions. [2021-06-05 21:05:04,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:04,192 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:04,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:04,293 INFO L225 Difference]: With dead ends: 31215 [2021-06-05 21:05:04,293 INFO L226 Difference]: Without dead ends: 30344 [2021-06-05 21:05:04,293 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:05,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30344 states. [2021-06-05 21:05:05,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30344 to 13275. [2021-06-05 21:05:05,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.330495705891216) internal successors, (70757), 13274 states have internal predecessors, (70757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:05,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70757 transitions. [2021-06-05 21:05:05,531 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70757 transitions. Word has length 33 [2021-06-05 21:05:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:05,531 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70757 transitions. [2021-06-05 21:05:05,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:05,532 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70757 transitions. [2021-06-05 21:05:05,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:05,560 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:05,560 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:05,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 21:05:05,560 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:05,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:05,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1598347117, now seen corresponding path program 129 times [2021-06-05 21:05:05,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:05,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210138357] [2021-06-05 21:05:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:05:05,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:05,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210138357] [2021-06-05 21:05:05,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210138357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:05,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:05,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:05,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816100466] [2021-06-05 21:05:05,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:05,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:05,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:05,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:05,708 INFO L87 Difference]: Start difference. First operand 13275 states and 70757 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:06,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:06,084 INFO L93 Difference]: Finished difference Result 31199 states and 157176 transitions. [2021-06-05 21:05:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:06,085 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:06,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:06,189 INFO L225 Difference]: With dead ends: 31199 [2021-06-05 21:05:06,189 INFO L226 Difference]: Without dead ends: 30440 [2021-06-05 21:05:06,189 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30440 states. [2021-06-05 21:05:07,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30440 to 13387. [2021-06-05 21:05:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.320558792768564) internal successors, (71221), 13386 states have internal predecessors, (71221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:07,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71221 transitions. [2021-06-05 21:05:07,286 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71221 transitions. Word has length 33 [2021-06-05 21:05:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:07,286 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71221 transitions. [2021-06-05 21:05:07,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:07,286 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71221 transitions. [2021-06-05 21:05:07,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:07,315 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:07,315 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:07,315 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 21:05:07,316 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:07,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:07,316 INFO L82 PathProgramCache]: Analyzing trace with hash -89899155, now seen corresponding path program 130 times [2021-06-05 21:05:07,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:07,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980122957] [2021-06-05 21:05:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:07,465 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 21:05:07,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:07,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980122957] [2021-06-05 21:05:07,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980122957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:07,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:07,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:07,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309346130] [2021-06-05 21:05:07,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:07,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:07,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:07,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:07,466 INFO L87 Difference]: Start difference. First operand 13387 states and 71221 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:07,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:07,816 INFO L93 Difference]: Finished difference Result 31175 states and 156972 transitions. [2021-06-05 21:05:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:07,816 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:07,924 INFO L225 Difference]: With dead ends: 31175 [2021-06-05 21:05:07,924 INFO L226 Difference]: Without dead ends: 30328 [2021-06-05 21:05:07,925 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30328 states. [2021-06-05 21:05:08,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30328 to 13275. [2021-06-05 21:05:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.326276932348953) internal successors, (70701), 13274 states have internal predecessors, (70701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:09,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70701 transitions. [2021-06-05 21:05:09,245 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70701 transitions. Word has length 33 [2021-06-05 21:05:09,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:09,245 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70701 transitions. [2021-06-05 21:05:09,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:09,246 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70701 transitions. [2021-06-05 21:05:09,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:09,275 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:09,275 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:09,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 21:05:09,275 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:09,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:09,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1986352079, now seen corresponding path program 131 times [2021-06-05 21:05:09,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:09,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326319345] [2021-06-05 21:05:09,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:09,424 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 21:05:09,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:09,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326319345] [2021-06-05 21:05:09,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326319345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:09,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:09,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:09,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126486442] [2021-06-05 21:05:09,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:09,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:09,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:09,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:09,425 INFO L87 Difference]: Start difference. First operand 13275 states and 70701 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:09,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:09,676 INFO L93 Difference]: Finished difference Result 31183 states and 157064 transitions. [2021-06-05 21:05:09,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:09,677 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:09,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:09,780 INFO L225 Difference]: With dead ends: 31183 [2021-06-05 21:05:09,780 INFO L226 Difference]: Without dead ends: 30432 [2021-06-05 21:05:09,781 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30432 states. [2021-06-05 21:05:10,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30432 to 13387. [2021-06-05 21:05:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.316375317495892) internal successors, (71165), 13386 states have internal predecessors, (71165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:11,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71165 transitions. [2021-06-05 21:05:11,003 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71165 transitions. Word has length 33 [2021-06-05 21:05:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:11,003 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71165 transitions. [2021-06-05 21:05:11,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:11,003 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71165 transitions. [2021-06-05 21:05:11,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:11,031 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:11,031 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:11,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 21:05:11,031 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:11,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:11,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1139555117, now seen corresponding path program 132 times [2021-06-05 21:05:11,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:11,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084581689] [2021-06-05 21:05:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:11,172 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 21:05:11,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:11,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084581689] [2021-06-05 21:05:11,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084581689] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:11,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:11,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:11,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640023951] [2021-06-05 21:05:11,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:11,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:11,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:11,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:11,173 INFO L87 Difference]: Start difference. First operand 13387 states and 71165 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:11,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:11,404 INFO L93 Difference]: Finished difference Result 31167 states and 156888 transitions. [2021-06-05 21:05:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:11,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:11,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:11,502 INFO L225 Difference]: With dead ends: 31167 [2021-06-05 21:05:11,502 INFO L226 Difference]: Without dead ends: 30264 [2021-06-05 21:05:11,502 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30264 states. [2021-06-05 21:05:12,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30264 to 13219. [2021-06-05 21:05:12,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.331290664245725) internal successors, (70469), 13218 states have internal predecessors, (70469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:12,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70469 transitions. [2021-06-05 21:05:12,693 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70469 transitions. Word has length 33 [2021-06-05 21:05:12,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:12,693 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70469 transitions. [2021-06-05 21:05:12,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:12,693 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70469 transitions. [2021-06-05 21:05:12,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:12,722 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:12,722 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:12,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 21:05:12,722 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:12,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:12,722 INFO L82 PathProgramCache]: Analyzing trace with hash 863886927, now seen corresponding path program 133 times [2021-06-05 21:05:12,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:12,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373925250] [2021-06-05 21:05:12,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:12,890 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 21:05:12,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:12,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373925250] [2021-06-05 21:05:12,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373925250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:12,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:12,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:12,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154103596] [2021-06-05 21:05:12,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:12,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:12,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:12,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:12,891 INFO L87 Difference]: Start difference. First operand 13219 states and 70469 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:13,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:13,132 INFO L93 Difference]: Finished difference Result 31506 states and 158659 transitions. [2021-06-05 21:05:13,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:13,133 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:13,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:13,234 INFO L225 Difference]: With dead ends: 31506 [2021-06-05 21:05:13,234 INFO L226 Difference]: Without dead ends: 30747 [2021-06-05 21:05:13,234 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30747 states. [2021-06-05 21:05:14,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30747 to 13419. [2021-06-05 21:05:14,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.323073483380534) internal successors, (71425), 13418 states have internal predecessors, (71425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71425 transitions. [2021-06-05 21:05:14,514 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71425 transitions. Word has length 33 [2021-06-05 21:05:14,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:14,514 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71425 transitions. [2021-06-05 21:05:14,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:14,514 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71425 transitions. [2021-06-05 21:05:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:14,543 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:14,543 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:14,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 21:05:14,543 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:14,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:14,543 INFO L82 PathProgramCache]: Analyzing trace with hash -824359345, now seen corresponding path program 134 times [2021-06-05 21:05:14,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:14,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380792730] [2021-06-05 21:05:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:14,692 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 21:05:14,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:14,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380792730] [2021-06-05 21:05:14,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380792730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:14,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:14,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:14,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538090147] [2021-06-05 21:05:14,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:14,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:14,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:14,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:14,693 INFO L87 Difference]: Start difference. First operand 13419 states and 71425 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:14,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:14,949 INFO L93 Difference]: Finished difference Result 31482 states and 158455 transitions. [2021-06-05 21:05:14,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:14,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:14,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:15,051 INFO L225 Difference]: With dead ends: 31482 [2021-06-05 21:05:15,051 INFO L226 Difference]: Without dead ends: 30635 [2021-06-05 21:05:15,051 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:15,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30635 states. [2021-06-05 21:05:16,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30635 to 13307. [2021-06-05 21:05:16,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.328799038027958) internal successors, (70905), 13306 states have internal predecessors, (70905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70905 transitions. [2021-06-05 21:05:16,355 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70905 transitions. Word has length 33 [2021-06-05 21:05:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:16,355 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70905 transitions. [2021-06-05 21:05:16,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70905 transitions. [2021-06-05 21:05:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:16,385 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:16,385 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:16,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 21:05:16,385 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:16,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1089516883, now seen corresponding path program 135 times [2021-06-05 21:05:16,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:16,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510019474] [2021-06-05 21:05:16,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:16,554 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 21:05:16,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:16,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510019474] [2021-06-05 21:05:16,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510019474] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:16,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:16,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:16,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866274133] [2021-06-05 21:05:16,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:16,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:16,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:16,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:16,555 INFO L87 Difference]: Start difference. First operand 13307 states and 70905 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:16,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:16,965 INFO L93 Difference]: Finished difference Result 31741 states and 159662 transitions. [2021-06-05 21:05:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:16,966 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:16,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:17,069 INFO L225 Difference]: With dead ends: 31741 [2021-06-05 21:05:17,069 INFO L226 Difference]: Without dead ends: 30982 [2021-06-05 21:05:17,069 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:17,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30982 states. [2021-06-05 21:05:18,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30982 to 13495. [2021-06-05 21:05:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.31562175781829) internal successors, (71729), 13494 states have internal predecessors, (71729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:18,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71729 transitions. [2021-06-05 21:05:18,162 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71729 transitions. Word has length 33 [2021-06-05 21:05:18,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:18,162 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71729 transitions. [2021-06-05 21:05:18,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:18,162 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71729 transitions. [2021-06-05 21:05:18,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:18,191 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:18,191 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:18,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 21:05:18,191 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:18,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1556743759, now seen corresponding path program 136 times [2021-06-05 21:05:18,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:18,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886050754] [2021-06-05 21:05:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:18,372 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 21:05:18,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:18,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886050754] [2021-06-05 21:05:18,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886050754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:18,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:18,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:18,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562288674] [2021-06-05 21:05:18,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:18,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:18,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:18,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:18,373 INFO L87 Difference]: Start difference. First operand 13495 states and 71729 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:18,739 INFO L93 Difference]: Finished difference Result 31876 states and 160133 transitions. [2021-06-05 21:05:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:18,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:18,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:18,839 INFO L225 Difference]: With dead ends: 31876 [2021-06-05 21:05:18,839 INFO L226 Difference]: Without dead ends: 30794 [2021-06-05 21:05:18,840 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:19,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30794 states. [2021-06-05 21:05:19,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30794 to 13307. [2021-06-05 21:05:19,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.322185480234481) internal successors, (70817), 13306 states have internal predecessors, (70817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70817 transitions. [2021-06-05 21:05:20,153 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70817 transitions. Word has length 33 [2021-06-05 21:05:20,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:20,154 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70817 transitions. [2021-06-05 21:05:20,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:20,154 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70817 transitions. [2021-06-05 21:05:20,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:20,200 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:20,200 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:20,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 21:05:20,200 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:20,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:20,201 INFO L82 PathProgramCache]: Analyzing trace with hash 191696463, now seen corresponding path program 137 times [2021-06-05 21:05:20,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:20,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501958739] [2021-06-05 21:05:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:20,382 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 21:05:20,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:20,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501958739] [2021-06-05 21:05:20,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501958739] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:20,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:20,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:20,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527799381] [2021-06-05 21:05:20,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:20,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:20,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:20,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:20,383 INFO L87 Difference]: Start difference. First operand 13307 states and 70817 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:20,705 INFO L93 Difference]: Finished difference Result 31681 states and 159338 transitions. [2021-06-05 21:05:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:20,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:20,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:20,828 INFO L225 Difference]: With dead ends: 31681 [2021-06-05 21:05:20,829 INFO L226 Difference]: Without dead ends: 30946 [2021-06-05 21:05:20,829 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:21,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30946 states. [2021-06-05 21:05:22,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30946 to 13483. [2021-06-05 21:05:22,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.310858923008456) internal successors, (71601), 13482 states have internal predecessors, (71601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:22,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71601 transitions. [2021-06-05 21:05:22,096 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71601 transitions. Word has length 33 [2021-06-05 21:05:22,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:22,096 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71601 transitions. [2021-06-05 21:05:22,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:22,096 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71601 transitions. [2021-06-05 21:05:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:22,126 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:22,126 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:22,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 21:05:22,126 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:22,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:22,126 INFO L82 PathProgramCache]: Analyzing trace with hash -360056275, now seen corresponding path program 138 times [2021-06-05 21:05:22,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:22,127 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406487576] [2021-06-05 21:05:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:22,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:05:22,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:22,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406487576] [2021-06-05 21:05:22,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406487576] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:22,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:22,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:22,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756550022] [2021-06-05 21:05:22,317 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:22,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:22,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:22,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:22,318 INFO L87 Difference]: Start difference. First operand 13483 states and 71601 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:22,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:22,546 INFO L93 Difference]: Finished difference Result 31840 states and 159913 transitions. [2021-06-05 21:05:22,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:22,546 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:22,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:22,648 INFO L225 Difference]: With dead ends: 31840 [2021-06-05 21:05:22,648 INFO L226 Difference]: Without dead ends: 30682 [2021-06-05 21:05:22,648 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:23,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30682 states. [2021-06-05 21:05:23,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30682 to 13219. [2021-06-05 21:05:23,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.327961870177031) internal successors, (70425), 13218 states have internal predecessors, (70425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70425 transitions. [2021-06-05 21:05:23,863 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70425 transitions. Word has length 33 [2021-06-05 21:05:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:23,863 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70425 transitions. [2021-06-05 21:05:23,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70425 transitions. [2021-06-05 21:05:23,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:23,891 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:23,891 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:23,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 21:05:23,891 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:23,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:23,891 INFO L82 PathProgramCache]: Analyzing trace with hash 943407665, now seen corresponding path program 139 times [2021-06-05 21:05:23,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:23,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773739387] [2021-06-05 21:05:23,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:24,049 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 21:05:24,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:24,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773739387] [2021-06-05 21:05:24,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773739387] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:24,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:24,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:24,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65676246] [2021-06-05 21:05:24,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:24,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:24,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:24,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:24,050 INFO L87 Difference]: Start difference. First operand 13219 states and 70425 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:24,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:24,291 INFO L93 Difference]: Finished difference Result 31478 states and 158515 transitions. [2021-06-05 21:05:24,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:24,292 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:24,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:24,392 INFO L225 Difference]: With dead ends: 31478 [2021-06-05 21:05:24,392 INFO L226 Difference]: Without dead ends: 30727 [2021-06-05 21:05:24,392 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:25,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30727 states. [2021-06-05 21:05:25,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30727 to 13419. [2021-06-05 21:05:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.31979430615591) internal successors, (71381), 13418 states have internal predecessors, (71381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71381 transitions. [2021-06-05 21:05:25,594 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71381 transitions. Word has length 33 [2021-06-05 21:05:25,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:25,594 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71381 transitions. [2021-06-05 21:05:25,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71381 transitions. [2021-06-05 21:05:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:25,623 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:25,623 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:25,624 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 21:05:25,624 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:25,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:25,624 INFO L82 PathProgramCache]: Analyzing trace with hash 96610703, now seen corresponding path program 140 times [2021-06-05 21:05:25,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:25,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371509610] [2021-06-05 21:05:25,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:25,870 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 21:05:25,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:25,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371509610] [2021-06-05 21:05:25,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371509610] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:25,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:25,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:25,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133332295] [2021-06-05 21:05:25,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:25,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:25,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:25,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:25,871 INFO L87 Difference]: Start difference. First operand 13419 states and 71381 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:26,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:26,098 INFO L93 Difference]: Finished difference Result 31462 states and 158339 transitions. [2021-06-05 21:05:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:26,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:26,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:26,200 INFO L225 Difference]: With dead ends: 31462 [2021-06-05 21:05:26,200 INFO L226 Difference]: Without dead ends: 30615 [2021-06-05 21:05:26,200 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 257.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:27,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30615 states. [2021-06-05 21:05:27,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30615 to 13307. [2021-06-05 21:05:27,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.325492259131219) internal successors, (70861), 13306 states have internal predecessors, (70861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:27,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70861 transitions. [2021-06-05 21:05:27,451 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70861 transitions. Word has length 33 [2021-06-05 21:05:27,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:27,451 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70861 transitions. [2021-06-05 21:05:27,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:27,451 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70861 transitions. [2021-06-05 21:05:27,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:27,481 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:27,481 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:27,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 21:05:27,481 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:27,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:27,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1009996145, now seen corresponding path program 141 times [2021-06-05 21:05:27,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:27,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741877244] [2021-06-05 21:05:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:27,649 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 21:05:27,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:27,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741877244] [2021-06-05 21:05:27,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741877244] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:27,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:27,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:27,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428515857] [2021-06-05 21:05:27,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:27,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:27,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:27,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:27,650 INFO L87 Difference]: Start difference. First operand 13307 states and 70861 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:28,049 INFO L93 Difference]: Finished difference Result 31709 states and 159502 transitions. [2021-06-05 21:05:28,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:28,050 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:28,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:28,152 INFO L225 Difference]: With dead ends: 31709 [2021-06-05 21:05:28,152 INFO L226 Difference]: Without dead ends: 30958 [2021-06-05 21:05:28,152 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 191.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:28,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30958 states. [2021-06-05 21:05:29,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30958 to 13491. [2021-06-05 21:05:29,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.313046701260193) internal successors, (71673), 13490 states have internal predecessors, (71673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:29,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71673 transitions. [2021-06-05 21:05:29,263 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71673 transitions. Word has length 33 [2021-06-05 21:05:29,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:29,263 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71673 transitions. [2021-06-05 21:05:29,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71673 transitions. [2021-06-05 21:05:29,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:29,292 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:29,292 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:29,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 21:05:29,293 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:29,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:29,293 INFO L82 PathProgramCache]: Analyzing trace with hash -954542449, now seen corresponding path program 142 times [2021-06-05 21:05:29,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:29,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214408540] [2021-06-05 21:05:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:29,471 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 21:05:29,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:29,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214408540] [2021-06-05 21:05:29,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214408540] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:29,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:29,587 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:29,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465464948] [2021-06-05 21:05:29,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:29,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:29,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:29,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:29,588 INFO L87 Difference]: Start difference. First operand 13491 states and 71673 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:29,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:29,844 INFO L93 Difference]: Finished difference Result 31852 states and 160005 transitions. [2021-06-05 21:05:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:29,844 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:29,951 INFO L225 Difference]: With dead ends: 31852 [2021-06-05 21:05:29,951 INFO L226 Difference]: Without dead ends: 30774 [2021-06-05 21:05:29,952 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:30,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30774 states. [2021-06-05 21:05:31,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30774 to 13307. [2021-06-05 21:05:31,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.318878701337742) internal successors, (70773), 13306 states have internal predecessors, (70773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:31,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70773 transitions. [2021-06-05 21:05:31,255 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70773 transitions. Word has length 33 [2021-06-05 21:05:31,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:31,255 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70773 transitions. [2021-06-05 21:05:31,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70773 transitions. [2021-06-05 21:05:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:31,283 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:31,283 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:31,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 21:05:31,284 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:31,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:31,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1866744211, now seen corresponding path program 143 times [2021-06-05 21:05:31,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:31,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400498792] [2021-06-05 21:05:31,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:31,447 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 21:05:31,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:31,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400498792] [2021-06-05 21:05:31,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400498792] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:31,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:31,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:31,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943800676] [2021-06-05 21:05:31,448 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:31,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:31,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:31,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:31,449 INFO L87 Difference]: Start difference. First operand 13307 states and 70773 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:31,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:31,681 INFO L93 Difference]: Finished difference Result 31669 states and 159250 transitions. [2021-06-05 21:05:31,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:31,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:31,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:31,779 INFO L225 Difference]: With dead ends: 31669 [2021-06-05 21:05:31,779 INFO L226 Difference]: Without dead ends: 30934 [2021-06-05 21:05:31,779 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:32,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30934 states. [2021-06-05 21:05:32,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30934 to 13483. [2021-06-05 21:05:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.30759531226821) internal successors, (71557), 13482 states have internal predecessors, (71557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:33,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71557 transitions. [2021-06-05 21:05:33,009 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71557 transitions. Word has length 33 [2021-06-05 21:05:33,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:33,010 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71557 transitions. [2021-06-05 21:05:33,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:33,010 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71557 transitions. [2021-06-05 21:05:33,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:33,038 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:33,038 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:33,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 21:05:33,039 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:33,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:33,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1791209905, now seen corresponding path program 144 times [2021-06-05 21:05:33,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:33,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810894361] [2021-06-05 21:05:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:33,202 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 21:05:33,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:33,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810894361] [2021-06-05 21:05:33,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810894361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:33,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:33,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:33,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548135980] [2021-06-05 21:05:33,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:33,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:33,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:33,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:33,203 INFO L87 Difference]: Start difference. First operand 13483 states and 71557 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:33,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:33,438 INFO L93 Difference]: Finished difference Result 31828 states and 159825 transitions. [2021-06-05 21:05:33,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:33,439 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:33,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:33,542 INFO L225 Difference]: With dead ends: 31828 [2021-06-05 21:05:33,542 INFO L226 Difference]: Without dead ends: 30626 [2021-06-05 21:05:33,542 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:34,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30626 states. [2021-06-05 21:05:34,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30626 to 13175. [2021-06-05 21:05:34,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13175 states, 13174 states have (on average 5.332548960072871) internal successors, (70251), 13174 states have internal predecessors, (70251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70251 transitions. [2021-06-05 21:05:34,764 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70251 transitions. Word has length 33 [2021-06-05 21:05:34,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:34,765 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70251 transitions. [2021-06-05 21:05:34,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70251 transitions. [2021-06-05 21:05:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:34,793 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:34,793 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:34,793 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 21:05:34,793 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:34,793 INFO L82 PathProgramCache]: Analyzing trace with hash 828297583, now seen corresponding path program 145 times [2021-06-05 21:05:34,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:34,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196376688] [2021-06-05 21:05:34,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:34,939 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 21:05:34,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:34,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196376688] [2021-06-05 21:05:34,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196376688] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:34,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:34,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:34,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286847089] [2021-06-05 21:05:34,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:34,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:34,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:34,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:34,940 INFO L87 Difference]: Start difference. First operand 13175 states and 70251 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:35,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:35,186 INFO L93 Difference]: Finished difference Result 31644 states and 159296 transitions. [2021-06-05 21:05:35,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:35,186 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:35,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:35,290 INFO L225 Difference]: With dead ends: 31644 [2021-06-05 21:05:35,291 INFO L226 Difference]: Without dead ends: 30885 [2021-06-05 21:05:35,291 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30885 states. [2021-06-05 21:05:36,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30885 to 13433. [2021-06-05 21:05:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13433 states, 13432 states have (on average 5.325640262060751) internal successors, (71534), 13432 states have internal predecessors, (71534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:36,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13433 states to 13433 states and 71534 transitions. [2021-06-05 21:05:36,508 INFO L78 Accepts]: Start accepts. Automaton has 13433 states and 71534 transitions. Word has length 33 [2021-06-05 21:05:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:36,508 INFO L482 AbstractCegarLoop]: Abstraction has 13433 states and 71534 transitions. [2021-06-05 21:05:36,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:36,508 INFO L276 IsEmpty]: Start isEmpty. Operand 13433 states and 71534 transitions. [2021-06-05 21:05:36,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:36,537 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:36,537 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:36,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 21:05:36,537 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:36,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:36,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1909360209, now seen corresponding path program 146 times [2021-06-05 21:05:36,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:36,537 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928636797] [2021-06-05 21:05:36,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:36,679 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 21:05:36,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:36,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928636797] [2021-06-05 21:05:36,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928636797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:36,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:36,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:36,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583841414] [2021-06-05 21:05:36,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:36,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:36,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:36,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:36,680 INFO L87 Difference]: Start difference. First operand 13433 states and 71534 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:36,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:36,981 INFO L93 Difference]: Finished difference Result 31636 states and 159148 transitions. [2021-06-05 21:05:36,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:36,981 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:36,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:37,085 INFO L225 Difference]: With dead ends: 31636 [2021-06-05 21:05:37,085 INFO L226 Difference]: Without dead ends: 30765 [2021-06-05 21:05:37,086 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 198.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:37,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30765 states. [2021-06-05 21:05:38,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30765 to 13313. [2021-06-05 21:05:38,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.332181490384615) internal successors, (70982), 13312 states have internal predecessors, (70982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:38,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70982 transitions. [2021-06-05 21:05:38,319 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70982 transitions. Word has length 33 [2021-06-05 21:05:38,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:38,319 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70982 transitions. [2021-06-05 21:05:38,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:38,319 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70982 transitions. [2021-06-05 21:05:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:38,348 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:38,348 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:38,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 21:05:38,348 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:38,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:38,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1747605137, now seen corresponding path program 147 times [2021-06-05 21:05:38,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:38,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37431259] [2021-06-05 21:05:38,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:05:38,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:38,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37431259] [2021-06-05 21:05:38,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37431259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:38,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:38,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:38,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758208796] [2021-06-05 21:05:38,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:38,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:38,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:38,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:38,516 INFO L87 Difference]: Start difference. First operand 13313 states and 70982 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:38,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:38,881 INFO L93 Difference]: Finished difference Result 31855 states and 160195 transitions. [2021-06-05 21:05:38,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:38,882 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:38,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:38,984 INFO L225 Difference]: With dead ends: 31855 [2021-06-05 21:05:38,984 INFO L226 Difference]: Without dead ends: 31096 [2021-06-05 21:05:38,984 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:39,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31096 states. [2021-06-05 21:05:40,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31096 to 13501. [2021-06-05 21:05:40,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13501 states, 13500 states have (on average 5.318962962962963) internal successors, (71806), 13500 states have internal predecessors, (71806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:40,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13501 states to 13501 states and 71806 transitions. [2021-06-05 21:05:40,098 INFO L78 Accepts]: Start accepts. Automaton has 13501 states and 71806 transitions. Word has length 33 [2021-06-05 21:05:40,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:40,098 INFO L482 AbstractCegarLoop]: Abstraction has 13501 states and 71806 transitions. [2021-06-05 21:05:40,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand 13501 states and 71806 transitions. [2021-06-05 21:05:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:40,128 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:40,128 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:40,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 21:05:40,128 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:40,128 INFO L82 PathProgramCache]: Analyzing trace with hash -977833617, now seen corresponding path program 148 times [2021-06-05 21:05:40,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:40,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440026698] [2021-06-05 21:05:40,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:40,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:40,423 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 21:05:40,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:40,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440026698] [2021-06-05 21:05:40,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440026698] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:40,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:40,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:40,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119292467] [2021-06-05 21:05:40,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:40,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:40,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:40,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:40,424 INFO L87 Difference]: Start difference. First operand 13501 states and 71806 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:40,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:40,640 INFO L93 Difference]: Finished difference Result 31990 states and 160666 transitions. [2021-06-05 21:05:40,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:40,640 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:40,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:40,747 INFO L225 Difference]: With dead ends: 31990 [2021-06-05 21:05:40,747 INFO L226 Difference]: Without dead ends: 30908 [2021-06-05 21:05:40,747 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 298.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30908 states. [2021-06-05 21:05:41,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30908 to 13313. [2021-06-05 21:05:41,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.3252704326923075) internal successors, (70890), 13312 states have internal predecessors, (70890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70890 transitions. [2021-06-05 21:05:42,029 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70890 transitions. Word has length 33 [2021-06-05 21:05:42,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:42,029 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70890 transitions. [2021-06-05 21:05:42,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:42,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70890 transitions. [2021-06-05 21:05:42,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:42,058 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:42,058 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:42,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 21:05:42,058 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:42,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:42,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1359600175, now seen corresponding path program 149 times [2021-06-05 21:05:42,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:42,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195187757] [2021-06-05 21:05:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:05:42,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:42,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195187757] [2021-06-05 21:05:42,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195187757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:42,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:42,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:42,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921022182] [2021-06-05 21:05:42,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:42,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:42,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:42,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:42,227 INFO L87 Difference]: Start difference. First operand 13313 states and 70890 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:42,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:42,476 INFO L93 Difference]: Finished difference Result 31835 states and 160031 transitions. [2021-06-05 21:05:42,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:42,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:42,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:42,582 INFO L225 Difference]: With dead ends: 31835 [2021-06-05 21:05:42,582 INFO L226 Difference]: Without dead ends: 31084 [2021-06-05 21:05:42,582 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:43,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31084 states. [2021-06-05 21:05:43,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31084 to 13497. [2021-06-05 21:05:43,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13497 states, 13496 states have (on average 5.312833432128038) internal successors, (71702), 13496 states have internal predecessors, (71702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:43,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71702 transitions. [2021-06-05 21:05:43,822 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71702 transitions. Word has length 33 [2021-06-05 21:05:43,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:43,822 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71702 transitions. [2021-06-05 21:05:43,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:43,822 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71702 transitions. [2021-06-05 21:05:43,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:43,852 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:43,852 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:43,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 21:05:43,852 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:43,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:43,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1114331695, now seen corresponding path program 150 times [2021-06-05 21:05:43,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:43,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128851592] [2021-06-05 21:05:43,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:44,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:05:44,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:44,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128851592] [2021-06-05 21:05:44,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128851592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:44,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:44,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:44,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304478097] [2021-06-05 21:05:44,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:44,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:44,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:44,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:44,022 INFO L87 Difference]: Start difference. First operand 13497 states and 71702 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:44,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:44,234 INFO L93 Difference]: Finished difference Result 31978 states and 160534 transitions. [2021-06-05 21:05:44,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:44,235 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:44,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:44,335 INFO L225 Difference]: With dead ends: 31978 [2021-06-05 21:05:44,335 INFO L226 Difference]: Without dead ends: 30808 [2021-06-05 21:05:44,336 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:45,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30808 states. [2021-06-05 21:05:45,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30808 to 13221. [2021-06-05 21:05:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13221 states, 13220 states have (on average 5.33161875945537) internal successors, (70484), 13220 states have internal predecessors, (70484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13221 states to 13221 states and 70484 transitions. [2021-06-05 21:05:45,559 INFO L78 Accepts]: Start accepts. Automaton has 13221 states and 70484 transitions. Word has length 33 [2021-06-05 21:05:45,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:45,560 INFO L482 AbstractCegarLoop]: Abstraction has 13221 states and 70484 transitions. [2021-06-05 21:05:45,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:45,560 INFO L276 IsEmpty]: Start isEmpty. Operand 13221 states and 70484 transitions. [2021-06-05 21:05:45,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:45,588 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:45,588 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:45,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 21:05:45,588 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:45,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:45,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1063485423, now seen corresponding path program 151 times [2021-06-05 21:05:45,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:45,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352505531] [2021-06-05 21:05:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:45,720 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 21:05:45,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:45,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352505531] [2021-06-05 21:05:45,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352505531] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:45,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:45,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:45,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429391945] [2021-06-05 21:05:45,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:45,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:45,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:45,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:45,721 INFO L87 Difference]: Start difference. First operand 13221 states and 70484 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:45,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:45,965 INFO L93 Difference]: Finished difference Result 31353 states and 157851 transitions. [2021-06-05 21:05:45,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:45,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:45,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:46,072 INFO L225 Difference]: With dead ends: 31353 [2021-06-05 21:05:46,072 INFO L226 Difference]: Without dead ends: 30594 [2021-06-05 21:05:46,072 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:46,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30594 states. [2021-06-05 21:05:47,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30594 to 13401. [2021-06-05 21:05:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13401 states, 13400 states have (on average 5.321791044776119) internal successors, (71312), 13400 states have internal predecessors, (71312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:47,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13401 states to 13401 states and 71312 transitions. [2021-06-05 21:05:47,298 INFO L78 Accepts]: Start accepts. Automaton has 13401 states and 71312 transitions. Word has length 33 [2021-06-05 21:05:47,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:47,298 INFO L482 AbstractCegarLoop]: Abstraction has 13401 states and 71312 transitions. [2021-06-05 21:05:47,298 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:47,298 INFO L276 IsEmpty]: Start isEmpty. Operand 13401 states and 71312 transitions. [2021-06-05 21:05:47,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:47,326 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:47,326 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:47,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 21:05:47,327 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:47,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:47,327 INFO L82 PathProgramCache]: Analyzing trace with hash 2144548049, now seen corresponding path program 152 times [2021-06-05 21:05:47,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:47,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911644500] [2021-06-05 21:05:47,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:05:47,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:47,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911644500] [2021-06-05 21:05:47,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911644500] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:47,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:47,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:47,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157437157] [2021-06-05 21:05:47,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:47,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:47,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:47,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:47,459 INFO L87 Difference]: Start difference. First operand 13401 states and 71312 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:47,701 INFO L93 Difference]: Finished difference Result 31345 states and 157703 transitions. [2021-06-05 21:05:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:47,701 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:47,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:47,804 INFO L225 Difference]: With dead ends: 31345 [2021-06-05 21:05:47,804 INFO L226 Difference]: Without dead ends: 30474 [2021-06-05 21:05:47,804 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:48,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30474 states. [2021-06-05 21:05:48,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30474 to 13281. [2021-06-05 21:05:49,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13281 states, 13280 states have (on average 5.328313253012048) internal successors, (70760), 13280 states have internal predecessors, (70760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:49,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13281 states to 13281 states and 70760 transitions. [2021-06-05 21:05:49,046 INFO L78 Accepts]: Start accepts. Automaton has 13281 states and 70760 transitions. Word has length 33 [2021-06-05 21:05:49,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:49,046 INFO L482 AbstractCegarLoop]: Abstraction has 13281 states and 70760 transitions. [2021-06-05 21:05:49,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:49,046 INFO L276 IsEmpty]: Start isEmpty. Operand 13281 states and 70760 transitions. [2021-06-05 21:05:49,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:49,075 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:49,075 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:49,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 21:05:49,075 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:49,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:49,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1671559407, now seen corresponding path program 153 times [2021-06-05 21:05:49,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:49,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567499038] [2021-06-05 21:05:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:49,266 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 21:05:49,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:49,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567499038] [2021-06-05 21:05:49,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567499038] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:49,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:49,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:49,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158480996] [2021-06-05 21:05:49,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:49,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:49,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:49,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:49,267 INFO L87 Difference]: Start difference. First operand 13281 states and 70760 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:49,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:49,681 INFO L93 Difference]: Finished difference Result 31369 states and 157847 transitions. [2021-06-05 21:05:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:49,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:49,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:49,794 INFO L225 Difference]: With dead ends: 31369 [2021-06-05 21:05:49,794 INFO L226 Difference]: Without dead ends: 30610 [2021-06-05 21:05:49,794 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:50,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30610 states. [2021-06-05 21:05:50,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30610 to 13405. [2021-06-05 21:05:50,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13405 states, 13404 states have (on average 5.316621903909281) internal successors, (71264), 13404 states have internal predecessors, (71264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:50,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13405 states to 13405 states and 71264 transitions. [2021-06-05 21:05:50,903 INFO L78 Accepts]: Start accepts. Automaton has 13405 states and 71264 transitions. Word has length 33 [2021-06-05 21:05:50,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:50,903 INFO L482 AbstractCegarLoop]: Abstraction has 13405 states and 71264 transitions. [2021-06-05 21:05:50,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:50,903 INFO L276 IsEmpty]: Start isEmpty. Operand 13405 states and 71264 transitions. [2021-06-05 21:05:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:50,932 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:50,932 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:50,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 21:05:50,932 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:50,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:50,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1721127151, now seen corresponding path program 154 times [2021-06-05 21:05:50,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:50,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823748044] [2021-06-05 21:05:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:51,077 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 21:05:51,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:51,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823748044] [2021-06-05 21:05:51,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823748044] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:51,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:51,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:51,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425699627] [2021-06-05 21:05:51,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:51,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:51,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:51,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:51,078 INFO L87 Difference]: Start difference. First operand 13405 states and 71264 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:51,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:51,442 INFO L93 Difference]: Finished difference Result 31373 states and 157735 transitions. [2021-06-05 21:05:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:51,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:51,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:51,556 INFO L225 Difference]: With dead ends: 31373 [2021-06-05 21:05:51,556 INFO L226 Difference]: Without dead ends: 30486 [2021-06-05 21:05:51,556 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:52,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30486 states. [2021-06-05 21:05:52,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30486 to 13281. [2021-06-05 21:05:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13281 states, 13280 states have (on average 5.323795180722891) internal successors, (70700), 13280 states have internal predecessors, (70700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13281 states to 13281 states and 70700 transitions. [2021-06-05 21:05:52,812 INFO L78 Accepts]: Start accepts. Automaton has 13281 states and 70700 transitions. Word has length 33 [2021-06-05 21:05:52,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:52,812 INFO L482 AbstractCegarLoop]: Abstraction has 13281 states and 70700 transitions. [2021-06-05 21:05:52,812 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:52,812 INFO L276 IsEmpty]: Start isEmpty. Operand 13281 states and 70700 transitions. [2021-06-05 21:05:52,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:52,862 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:52,862 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:52,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 21:05:52,863 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:52,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:52,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1283554445, now seen corresponding path program 155 times [2021-06-05 21:05:52,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:52,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285551547] [2021-06-05 21:05:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:52,991 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 21:05:52,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:52,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285551547] [2021-06-05 21:05:52,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285551547] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:52,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:52,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:52,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599739074] [2021-06-05 21:05:52,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:52,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:52,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:52,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:52,992 INFO L87 Difference]: Start difference. First operand 13281 states and 70700 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:53,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:53,228 INFO L93 Difference]: Finished difference Result 31349 states and 157715 transitions. [2021-06-05 21:05:53,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:53,228 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:53,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:53,325 INFO L225 Difference]: With dead ends: 31349 [2021-06-05 21:05:53,325 INFO L226 Difference]: Without dead ends: 30598 [2021-06-05 21:05:53,325 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:54,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30598 states. [2021-06-05 21:05:54,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30598 to 13401. [2021-06-05 21:05:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13401 states, 13400 states have (on average 5.312835820895522) internal successors, (71192), 13400 states have internal predecessors, (71192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13401 states to 13401 states and 71192 transitions. [2021-06-05 21:05:54,559 INFO L78 Accepts]: Start accepts. Automaton has 13401 states and 71192 transitions. Word has length 33 [2021-06-05 21:05:54,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:54,559 INFO L482 AbstractCegarLoop]: Abstraction has 13401 states and 71192 transitions. [2021-06-05 21:05:54,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:54,559 INFO L276 IsEmpty]: Start isEmpty. Operand 13401 states and 71192 transitions. [2021-06-05 21:05:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:54,588 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:54,588 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:54,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 21:05:54,588 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:54,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:54,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1348187951, now seen corresponding path program 156 times [2021-06-05 21:05:54,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:54,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181703944] [2021-06-05 21:05:54,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:54,719 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 21:05:54,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:54,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181703944] [2021-06-05 21:05:54,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181703944] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:54,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:54,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:54,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324226143] [2021-06-05 21:05:54,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:54,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:54,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:54,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:54,725 INFO L87 Difference]: Start difference. First operand 13401 states and 71192 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:54,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:54,971 INFO L93 Difference]: Finished difference Result 31361 states and 157635 transitions. [2021-06-05 21:05:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:54,971 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:55,072 INFO L225 Difference]: With dead ends: 31361 [2021-06-05 21:05:55,073 INFO L226 Difference]: Without dead ends: 30418 [2021-06-05 21:05:55,073 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:55,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30418 states. [2021-06-05 21:05:56,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30418 to 13221. [2021-06-05 21:05:56,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13221 states, 13220 states have (on average 5.329349470499244) internal successors, (70454), 13220 states have internal predecessors, (70454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:56,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13221 states to 13221 states and 70454 transitions. [2021-06-05 21:05:56,279 INFO L78 Accepts]: Start accepts. Automaton has 13221 states and 70454 transitions. Word has length 33 [2021-06-05 21:05:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:56,279 INFO L482 AbstractCegarLoop]: Abstraction has 13221 states and 70454 transitions. [2021-06-05 21:05:56,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:56,279 INFO L276 IsEmpty]: Start isEmpty. Operand 13221 states and 70454 transitions. [2021-06-05 21:05:56,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:56,308 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:56,308 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:56,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 21:05:56,308 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:56,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:56,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1806893295, now seen corresponding path program 157 times [2021-06-05 21:05:56,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:56,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339195163] [2021-06-05 21:05:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:56,456 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 21:05:56,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:56,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339195163] [2021-06-05 21:05:56,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339195163] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:56,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:56,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:56,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165729829] [2021-06-05 21:05:56,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:56,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:56,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:56,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:56,457 INFO L87 Difference]: Start difference. First operand 13221 states and 70454 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:56,690 INFO L93 Difference]: Finished difference Result 31879 states and 160267 transitions. [2021-06-05 21:05:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:56,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:56,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:56,796 INFO L225 Difference]: With dead ends: 31879 [2021-06-05 21:05:56,796 INFO L226 Difference]: Without dead ends: 31120 [2021-06-05 21:05:56,796 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:57,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31120 states. [2021-06-05 21:05:57,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31120 to 13503. [2021-06-05 21:05:57,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.317656643460228) internal successors, (71799), 13502 states have internal predecessors, (71799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:58,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71799 transitions. [2021-06-05 21:05:58,045 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71799 transitions. Word has length 33 [2021-06-05 21:05:58,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:58,045 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71799 transitions. [2021-06-05 21:05:58,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:58,045 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71799 transitions. [2021-06-05 21:05:58,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:58,075 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:58,075 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:58,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-05 21:05:58,075 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:58,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:58,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1037121775, now seen corresponding path program 158 times [2021-06-05 21:05:58,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:58,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811736041] [2021-06-05 21:05:58,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:05:58,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:58,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811736041] [2021-06-05 21:05:58,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811736041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:58,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:58,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:58,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780616350] [2021-06-05 21:05:58,226 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:58,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:58,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:58,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:58,227 INFO L87 Difference]: Start difference. First operand 13503 states and 71799 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:58,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:05:58,460 INFO L93 Difference]: Finished difference Result 32014 states and 160738 transitions. [2021-06-05 21:05:58,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:05:58,461 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:05:58,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:05:58,565 INFO L225 Difference]: With dead ends: 32014 [2021-06-05 21:05:58,565 INFO L226 Difference]: Without dead ends: 30932 [2021-06-05 21:05:58,565 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:05:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30932 states. [2021-06-05 21:05:59,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30932 to 13315. [2021-06-05 21:05:59,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.3237945020279405) internal successors, (70881), 13314 states have internal predecessors, (70881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70881 transitions. [2021-06-05 21:05:59,771 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70881 transitions. Word has length 33 [2021-06-05 21:05:59,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:05:59,771 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70881 transitions. [2021-06-05 21:05:59,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:05:59,771 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70881 transitions. [2021-06-05 21:05:59,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:05:59,799 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:05:59,799 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:05:59,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-05 21:05:59,799 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:05:59,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:05:59,800 INFO L82 PathProgramCache]: Analyzing trace with hash 455061359, now seen corresponding path program 159 times [2021-06-05 21:05:59,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:05:59,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987314050] [2021-06-05 21:05:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:05:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:05:59,930 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 21:05:59,930 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:05:59,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987314050] [2021-06-05 21:05:59,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987314050] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:05:59,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:05:59,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:05:59,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370245705] [2021-06-05 21:05:59,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:05:59,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:05:59,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:05:59,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:05:59,931 INFO L87 Difference]: Start difference. First operand 13315 states and 70881 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:00,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:00,163 INFO L93 Difference]: Finished difference Result 31684 states and 159270 transitions. [2021-06-05 21:06:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:00,163 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:00,442 INFO L225 Difference]: With dead ends: 31684 [2021-06-05 21:06:00,442 INFO L226 Difference]: Without dead ends: 30925 [2021-06-05 21:06:00,443 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:01,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30925 states. [2021-06-05 21:06:01,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30925 to 13439. [2021-06-05 21:06:01,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13439 states, 13438 states have (on average 5.312174430718857) internal successors, (71385), 13438 states have internal predecessors, (71385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:01,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 71385 transitions. [2021-06-05 21:06:01,497 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 71385 transitions. Word has length 33 [2021-06-05 21:06:01,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:01,497 INFO L482 AbstractCegarLoop]: Abstraction has 13439 states and 71385 transitions. [2021-06-05 21:06:01,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:01,497 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 71385 transitions. [2021-06-05 21:06:01,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:01,525 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:01,525 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:01,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-05 21:06:01,525 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:01,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:01,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1032488721, now seen corresponding path program 160 times [2021-06-05 21:06:01,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:01,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247314660] [2021-06-05 21:06:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:01,656 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 21:06:01,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:01,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247314660] [2021-06-05 21:06:01,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247314660] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:01,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:01,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:01,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082666906] [2021-06-05 21:06:01,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:01,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:01,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:01,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:01,657 INFO L87 Difference]: Start difference. First operand 13439 states and 71385 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:02,029 INFO L93 Difference]: Finished difference Result 31688 states and 159158 transitions. [2021-06-05 21:06:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:02,029 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:02,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:02,125 INFO L225 Difference]: With dead ends: 31688 [2021-06-05 21:06:02,126 INFO L226 Difference]: Without dead ends: 30801 [2021-06-05 21:06:02,126 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:02,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30801 states. [2021-06-05 21:06:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30801 to 13315. [2021-06-05 21:06:03,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 5.319137749737119) internal successors, (70819), 13314 states have internal predecessors, (70819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:03,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70819 transitions. [2021-06-05 21:06:03,212 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70819 transitions. Word has length 33 [2021-06-05 21:06:03,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:03,212 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70819 transitions. [2021-06-05 21:06:03,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:03,213 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70819 transitions. [2021-06-05 21:06:03,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:03,240 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:03,241 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:03,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-05 21:06:03,241 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:03,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:03,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1427083503, now seen corresponding path program 161 times [2021-06-05 21:06:03,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:03,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209033109] [2021-06-05 21:06:03,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:03,479 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 21:06:03,479 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:03,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209033109] [2021-06-05 21:06:03,479 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209033109] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:03,479 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:03,479 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:03,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097116633] [2021-06-05 21:06:03,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:03,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:03,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:03,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:03,480 INFO L87 Difference]: Start difference. First operand 13315 states and 70819 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:03,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:03,706 INFO L93 Difference]: Finished difference Result 32020 states and 160725 transitions. [2021-06-05 21:06:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:03,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:03,808 INFO L225 Difference]: With dead ends: 32020 [2021-06-05 21:06:03,808 INFO L226 Difference]: Without dead ends: 31126 [2021-06-05 21:06:03,808 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 139.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:04,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31126 states. [2021-06-05 21:06:04,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31126 to 13505. [2021-06-05 21:06:05,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13505 states, 13504 states have (on average 5.300947867298579) internal successors, (71584), 13504 states have internal predecessors, (71584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:05,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13505 states to 13505 states and 71584 transitions. [2021-06-05 21:06:05,050 INFO L78 Accepts]: Start accepts. Automaton has 13505 states and 71584 transitions. Word has length 33 [2021-06-05 21:06:05,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:05,050 INFO L482 AbstractCegarLoop]: Abstraction has 13505 states and 71584 transitions. [2021-06-05 21:06:05,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:05,050 INFO L276 IsEmpty]: Start isEmpty. Operand 13505 states and 71584 transitions. [2021-06-05 21:06:05,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:05,078 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:05,078 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:05,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-05 21:06:05,078 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:05,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:05,078 INFO L82 PathProgramCache]: Analyzing trace with hash 751804143, now seen corresponding path program 162 times [2021-06-05 21:06:05,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:05,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179633456] [2021-06-05 21:06:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:05,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:05,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179633456] [2021-06-05 21:06:05,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179633456] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:05,212 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:05,212 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:05,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334557193] [2021-06-05 21:06:05,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:05,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:05,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:05,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:05,212 INFO L87 Difference]: Start difference. First operand 13505 states and 71584 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:05,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:05,458 INFO L93 Difference]: Finished difference Result 31889 states and 159952 transitions. [2021-06-05 21:06:05,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:05,458 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:05,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:05,562 INFO L225 Difference]: With dead ends: 31889 [2021-06-05 21:06:05,562 INFO L226 Difference]: Without dead ends: 30842 [2021-06-05 21:06:05,562 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:06,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30842 states. [2021-06-05 21:06:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30842 to 13221. [2021-06-05 21:06:06,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13221 states, 13220 states have (on average 5.325869894099848) internal successors, (70408), 13220 states have internal predecessors, (70408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:06,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13221 states to 13221 states and 70408 transitions. [2021-06-05 21:06:06,775 INFO L78 Accepts]: Start accepts. Automaton has 13221 states and 70408 transitions. Word has length 33 [2021-06-05 21:06:06,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:06,775 INFO L482 AbstractCegarLoop]: Abstraction has 13221 states and 70408 transitions. [2021-06-05 21:06:06,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:06,775 INFO L276 IsEmpty]: Start isEmpty. Operand 13221 states and 70408 transitions. [2021-06-05 21:06:06,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:06,805 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:06,805 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:06,805 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-05 21:06:06,805 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:06,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:06,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1727372557, now seen corresponding path program 163 times [2021-06-05 21:06:06,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:06,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476452285] [2021-06-05 21:06:06,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:06,950 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 21:06:06,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:06,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476452285] [2021-06-05 21:06:06,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476452285] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:06,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:06,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:06,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318047966] [2021-06-05 21:06:06,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:06,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:06,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:06,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:06,951 INFO L87 Difference]: Start difference. First operand 13221 states and 70408 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:07,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:07,217 INFO L93 Difference]: Finished difference Result 31841 states and 160080 transitions. [2021-06-05 21:06:07,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:07,217 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:07,317 INFO L225 Difference]: With dead ends: 31841 [2021-06-05 21:06:07,317 INFO L226 Difference]: Without dead ends: 31090 [2021-06-05 21:06:07,317 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31090 states. [2021-06-05 21:06:08,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31090 to 13497. [2021-06-05 21:06:08,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13497 states, 13496 states have (on average 5.315056312981624) internal successors, (71732), 13496 states have internal predecessors, (71732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:08,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71732 transitions. [2021-06-05 21:06:08,532 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71732 transitions. Word has length 33 [2021-06-05 21:06:08,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:08,532 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71732 transitions. [2021-06-05 21:06:08,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:08,533 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71732 transitions. [2021-06-05 21:06:08,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:08,561 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:08,561 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:08,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-05 21:06:08,561 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:08,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:08,561 INFO L82 PathProgramCache]: Analyzing trace with hash 746559313, now seen corresponding path program 164 times [2021-06-05 21:06:08,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:08,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81306564] [2021-06-05 21:06:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:08,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:08,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:08,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81306564] [2021-06-05 21:06:08,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81306564] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:08,712 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:08,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:08,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20761255] [2021-06-05 21:06:08,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:08,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:08,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:08,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:08,713 INFO L87 Difference]: Start difference. First operand 13497 states and 71732 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:08,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:08,945 INFO L93 Difference]: Finished difference Result 31984 states and 160583 transitions. [2021-06-05 21:06:08,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:08,945 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:08,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:09,045 INFO L225 Difference]: With dead ends: 31984 [2021-06-05 21:06:09,045 INFO L226 Difference]: Without dead ends: 30906 [2021-06-05 21:06:09,045 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:09,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30906 states. [2021-06-05 21:06:10,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30906 to 13313. [2021-06-05 21:06:10,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.320612980769231) internal successors, (70828), 13312 states have internal predecessors, (70828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:10,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70828 transitions. [2021-06-05 21:06:10,288 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70828 transitions. Word has length 33 [2021-06-05 21:06:10,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:10,288 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70828 transitions. [2021-06-05 21:06:10,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:10,288 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70828 transitions. [2021-06-05 21:06:10,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:10,316 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:10,316 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:10,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-05 21:06:10,316 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:10,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:10,316 INFO L82 PathProgramCache]: Analyzing trace with hash 534582097, now seen corresponding path program 165 times [2021-06-05 21:06:10,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:10,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765470652] [2021-06-05 21:06:10,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:10,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:10,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765470652] [2021-06-05 21:06:10,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765470652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:10,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:10,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:10,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87754536] [2021-06-05 21:06:10,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:10,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:10,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:10,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:10,444 INFO L87 Difference]: Start difference. First operand 13313 states and 70828 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:10,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:10,673 INFO L93 Difference]: Finished difference Result 31646 states and 159085 transitions. [2021-06-05 21:06:10,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:10,673 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:10,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:10,772 INFO L225 Difference]: With dead ends: 31646 [2021-06-05 21:06:10,772 INFO L226 Difference]: Without dead ends: 30895 [2021-06-05 21:06:10,772 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:11,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30895 states. [2021-06-05 21:06:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30895 to 13433. [2021-06-05 21:06:11,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13433 states, 13432 states have (on average 5.309708159618821) internal successors, (71320), 13432 states have internal predecessors, (71320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:12,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13433 states to 13433 states and 71320 transitions. [2021-06-05 21:06:12,010 INFO L78 Accepts]: Start accepts. Automaton has 13433 states and 71320 transitions. Word has length 33 [2021-06-05 21:06:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:12,010 INFO L482 AbstractCegarLoop]: Abstraction has 13433 states and 71320 transitions. [2021-06-05 21:06:12,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand 13433 states and 71320 transitions. [2021-06-05 21:06:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:12,038 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:12,038 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:12,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-05 21:06:12,039 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:12,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:12,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1096943697, now seen corresponding path program 166 times [2021-06-05 21:06:12,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:12,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858389695] [2021-06-05 21:06:12,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:12,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:12,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858389695] [2021-06-05 21:06:12,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858389695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:12,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:12,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:12,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886965178] [2021-06-05 21:06:12,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:12,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:12,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:12,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:12,168 INFO L87 Difference]: Start difference. First operand 13433 states and 71320 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:12,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:12,536 INFO L93 Difference]: Finished difference Result 31658 states and 159005 transitions. [2021-06-05 21:06:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:12,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:12,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:12,638 INFO L225 Difference]: With dead ends: 31658 [2021-06-05 21:06:12,638 INFO L226 Difference]: Without dead ends: 30775 [2021-06-05 21:06:12,638 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:13,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30775 states. [2021-06-05 21:06:13,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30775 to 13313. [2021-06-05 21:06:13,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.316105769230769) internal successors, (70768), 13312 states have internal predecessors, (70768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70768 transitions. [2021-06-05 21:06:13,714 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70768 transitions. Word has length 33 [2021-06-05 21:06:13,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:13,714 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70768 transitions. [2021-06-05 21:06:13,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:13,714 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70768 transitions. [2021-06-05 21:06:13,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:13,741 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:13,741 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:13,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-05 21:06:13,742 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:13,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:13,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1236697809, now seen corresponding path program 167 times [2021-06-05 21:06:13,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:13,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137085338] [2021-06-05 21:06:13,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:13,873 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 21:06:13,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:13,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137085338] [2021-06-05 21:06:13,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137085338] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:13,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:13,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:13,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721327041] [2021-06-05 21:06:13,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:13,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:13,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:13,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:13,874 INFO L87 Difference]: Start difference. First operand 13313 states and 70768 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:14,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:14,208 INFO L93 Difference]: Finished difference Result 32002 states and 160614 transitions. [2021-06-05 21:06:14,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:14,209 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:14,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:14,313 INFO L225 Difference]: With dead ends: 32002 [2021-06-05 21:06:14,313 INFO L226 Difference]: Without dead ends: 31108 [2021-06-05 21:06:14,313 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 137.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:15,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31108 states. [2021-06-05 21:06:15,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31108 to 13503. [2021-06-05 21:06:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.297955858391349) internal successors, (71533), 13502 states have internal predecessors, (71533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:15,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71533 transitions. [2021-06-05 21:06:15,574 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71533 transitions. Word has length 33 [2021-06-05 21:06:15,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:15,574 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71533 transitions. [2021-06-05 21:06:15,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:15,574 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71533 transitions. [2021-06-05 21:06:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:15,602 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:15,602 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:15,602 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-05 21:06:15,602 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:15,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:15,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1884309777, now seen corresponding path program 168 times [2021-06-05 21:06:15,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:15,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634478288] [2021-06-05 21:06:15,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:15,733 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:15,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634478288] [2021-06-05 21:06:15,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634478288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:15,734 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:15,734 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:15,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794550208] [2021-06-05 21:06:15,734 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:15,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:15,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:15,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:15,734 INFO L87 Difference]: Start difference. First operand 13503 states and 71533 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:16,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:16,001 INFO L93 Difference]: Finished difference Result 31871 states and 159841 transitions. [2021-06-05 21:06:16,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:16,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:16,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:16,101 INFO L225 Difference]: With dead ends: 31871 [2021-06-05 21:06:16,101 INFO L226 Difference]: Without dead ends: 30780 [2021-06-05 21:06:16,101 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:16,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30780 states. [2021-06-05 21:06:17,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30780 to 13175. [2021-06-05 21:06:17,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13175 states, 13174 states have (on average 5.330879004098983) internal successors, (70229), 13174 states have internal predecessors, (70229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70229 transitions. [2021-06-05 21:06:17,333 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70229 transitions. Word has length 33 [2021-06-05 21:06:17,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:17,333 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70229 transitions. [2021-06-05 21:06:17,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:17,333 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70229 transitions. [2021-06-05 21:06:17,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:17,361 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:17,361 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:17,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-05 21:06:17,361 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:17,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:17,361 INFO L82 PathProgramCache]: Analyzing trace with hash -783008979, now seen corresponding path program 169 times [2021-06-05 21:06:17,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:17,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884333169] [2021-06-05 21:06:17,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:17,490 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:17,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884333169] [2021-06-05 21:06:17,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884333169] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:17,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:17,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:17,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688756683] [2021-06-05 21:06:17,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:17,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:17,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:17,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:17,491 INFO L87 Difference]: Start difference. First operand 13175 states and 70229 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:17,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:17,727 INFO L93 Difference]: Finished difference Result 30788 states and 155165 transitions. [2021-06-05 21:06:17,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:17,727 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:17,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:17,826 INFO L225 Difference]: With dead ends: 30788 [2021-06-05 21:06:17,826 INFO L226 Difference]: Without dead ends: 30029 [2021-06-05 21:06:17,827 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30029 states. [2021-06-05 21:06:18,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30029 to 13379. [2021-06-05 21:06:18,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.322843474360891) internal successors, (71209), 13378 states have internal predecessors, (71209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:19,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71209 transitions. [2021-06-05 21:06:19,034 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71209 transitions. Word has length 33 [2021-06-05 21:06:19,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:19,034 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71209 transitions. [2021-06-05 21:06:19,034 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71209 transitions. [2021-06-05 21:06:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:19,063 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:19,063 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:19,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-05 21:06:19,063 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:19,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:19,064 INFO L82 PathProgramCache]: Analyzing trace with hash 298053647, now seen corresponding path program 170 times [2021-06-05 21:06:19,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:19,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085022907] [2021-06-05 21:06:19,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:19,192 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 21:06:19,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:19,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085022907] [2021-06-05 21:06:19,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085022907] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:19,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:19,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:19,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162941695] [2021-06-05 21:06:19,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:19,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:19,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:19,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:19,193 INFO L87 Difference]: Start difference. First operand 13379 states and 71209 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:19,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:19,428 INFO L93 Difference]: Finished difference Result 30780 states and 155017 transitions. [2021-06-05 21:06:19,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:19,428 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:19,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:19,528 INFO L225 Difference]: With dead ends: 30780 [2021-06-05 21:06:19,528 INFO L226 Difference]: Without dead ends: 29909 [2021-06-05 21:06:19,528 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:20,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29909 states. [2021-06-05 21:06:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29909 to 13259. [2021-06-05 21:06:20,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.329687735706743) internal successors, (70661), 13258 states have internal predecessors, (70661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70661 transitions. [2021-06-05 21:06:20,730 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70661 transitions. Word has length 33 [2021-06-05 21:06:20,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:20,730 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70661 transitions. [2021-06-05 21:06:20,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:20,730 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70661 transitions. [2021-06-05 21:06:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:20,757 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:20,758 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:20,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-05 21:06:20,758 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:20,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:20,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1263911025, now seen corresponding path program 171 times [2021-06-05 21:06:20,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:20,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155753466] [2021-06-05 21:06:20,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:20,892 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 21:06:20,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:20,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155753466] [2021-06-05 21:06:20,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155753466] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:20,892 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:20,892 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:20,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544591968] [2021-06-05 21:06:20,892 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:20,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:20,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:20,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:20,893 INFO L87 Difference]: Start difference. First operand 13259 states and 70661 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:21,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:21,137 INFO L93 Difference]: Finished difference Result 30764 states and 155009 transitions. [2021-06-05 21:06:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:21,137 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:21,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:21,235 INFO L225 Difference]: With dead ends: 30764 [2021-06-05 21:06:21,235 INFO L226 Difference]: Without dead ends: 30005 [2021-06-05 21:06:21,235 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:22,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30005 states. [2021-06-05 21:06:22,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30005 to 13371. [2021-06-05 21:06:22,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.319745699326851) internal successors, (71125), 13370 states have internal predecessors, (71125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:22,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71125 transitions. [2021-06-05 21:06:22,475 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71125 transitions. Word has length 33 [2021-06-05 21:06:22,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:22,475 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71125 transitions. [2021-06-05 21:06:22,475 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:22,475 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71125 transitions. [2021-06-05 21:06:22,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:22,503 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:22,503 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:22,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-05 21:06:22,503 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:22,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:22,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1342809999, now seen corresponding path program 172 times [2021-06-05 21:06:22,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:22,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622266420] [2021-06-05 21:06:22,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:22,633 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 21:06:22,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:22,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622266420] [2021-06-05 21:06:22,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622266420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:22,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:22,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:22,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364914533] [2021-06-05 21:06:22,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:22,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:22,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:22,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:22,634 INFO L87 Difference]: Start difference. First operand 13371 states and 71125 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:22,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:22,876 INFO L93 Difference]: Finished difference Result 30740 states and 154805 transitions. [2021-06-05 21:06:22,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:22,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:23,143 INFO L225 Difference]: With dead ends: 30740 [2021-06-05 21:06:23,143 INFO L226 Difference]: Without dead ends: 29893 [2021-06-05 21:06:23,143 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:23,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29893 states. [2021-06-05 21:06:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29893 to 13259. [2021-06-05 21:06:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.325463870870418) internal successors, (70605), 13258 states have internal predecessors, (70605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70605 transitions. [2021-06-05 21:06:24,165 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70605 transitions. Word has length 33 [2021-06-05 21:06:24,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:24,165 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70605 transitions. [2021-06-05 21:06:24,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:24,166 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70605 transitions. [2021-06-05 21:06:24,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:24,193 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:24,193 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:24,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-05 21:06:24,193 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:24,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:24,194 INFO L82 PathProgramCache]: Analyzing trace with hash -875906063, now seen corresponding path program 173 times [2021-06-05 21:06:24,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:24,194 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802630739] [2021-06-05 21:06:24,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:24,322 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 21:06:24,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:24,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802630739] [2021-06-05 21:06:24,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802630739] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:24,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:24,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:24,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613177429] [2021-06-05 21:06:24,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:24,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:24,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:24,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:24,323 INFO L87 Difference]: Start difference. First operand 13259 states and 70605 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:24,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:24,717 INFO L93 Difference]: Finished difference Result 30748 states and 154897 transitions. [2021-06-05 21:06:24,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:24,717 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:24,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:24,812 INFO L225 Difference]: With dead ends: 30748 [2021-06-05 21:06:24,812 INFO L226 Difference]: Without dead ends: 29997 [2021-06-05 21:06:24,812 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:25,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29997 states. [2021-06-05 21:06:25,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29997 to 13371. [2021-06-05 21:06:25,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.315557217651459) internal successors, (71069), 13370 states have internal predecessors, (71069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71069 transitions. [2021-06-05 21:06:25,887 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71069 transitions. Word has length 33 [2021-06-05 21:06:25,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:25,887 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71069 transitions. [2021-06-05 21:06:25,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:25,887 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71069 transitions. [2021-06-05 21:06:25,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:25,916 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:25,916 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:25,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-05 21:06:25,916 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:25,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:25,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1722703025, now seen corresponding path program 174 times [2021-06-05 21:06:25,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:25,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228882513] [2021-06-05 21:06:25,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:26,092 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-06-05 21:06:26,168 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 21:06:26,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:26,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228882513] [2021-06-05 21:06:26,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228882513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:26,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:26,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:26,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870967534] [2021-06-05 21:06:26,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:26,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:26,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:26,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:26,169 INFO L87 Difference]: Start difference. First operand 13371 states and 71069 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:26,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:26,392 INFO L93 Difference]: Finished difference Result 30732 states and 154721 transitions. [2021-06-05 21:06:26,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:26,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:26,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:26,489 INFO L225 Difference]: With dead ends: 30732 [2021-06-05 21:06:26,489 INFO L226 Difference]: Without dead ends: 29829 [2021-06-05 21:06:26,489 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 277.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:27,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29829 states. [2021-06-05 21:06:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29829 to 13203. [2021-06-05 21:06:27,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13203 states, 13202 states have (on average 5.330480230268141) internal successors, (70373), 13202 states have internal predecessors, (70373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 70373 transitions. [2021-06-05 21:06:27,725 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 70373 transitions. Word has length 33 [2021-06-05 21:06:27,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:27,725 INFO L482 AbstractCegarLoop]: Abstraction has 13203 states and 70373 transitions. [2021-06-05 21:06:27,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:27,725 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 70373 transitions. [2021-06-05 21:06:27,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:27,752 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:27,752 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:27,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-05 21:06:27,752 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:27,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:27,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1827520851, now seen corresponding path program 175 times [2021-06-05 21:06:27,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:27,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593097536] [2021-06-05 21:06:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:27,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:27,881 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:27,881 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593097536] [2021-06-05 21:06:27,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593097536] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:27,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:27,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:27,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015129606] [2021-06-05 21:06:27,882 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:27,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:27,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:27,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:27,882 INFO L87 Difference]: Start difference. First operand 13203 states and 70373 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:28,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:28,113 INFO L93 Difference]: Finished difference Result 30840 states and 155349 transitions. [2021-06-05 21:06:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:28,114 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:28,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:28,212 INFO L225 Difference]: With dead ends: 30840 [2021-06-05 21:06:28,213 INFO L226 Difference]: Without dead ends: 30081 [2021-06-05 21:06:28,213 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:28,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30081 states. [2021-06-05 21:06:29,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30081 to 13383. [2021-06-05 21:06:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13383 states, 13382 states have (on average 5.320654610671051) internal successors, (71201), 13382 states have internal predecessors, (71201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 71201 transitions. [2021-06-05 21:06:29,451 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 71201 transitions. Word has length 33 [2021-06-05 21:06:29,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:29,451 INFO L482 AbstractCegarLoop]: Abstraction has 13383 states and 71201 transitions. [2021-06-05 21:06:29,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:29,451 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 71201 transitions. [2021-06-05 21:06:29,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:29,479 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:29,479 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:29,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-05 21:06:29,479 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:29,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:29,480 INFO L82 PathProgramCache]: Analyzing trace with hash -746458225, now seen corresponding path program 176 times [2021-06-05 21:06:29,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:29,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305207324] [2021-06-05 21:06:29,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:29,621 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 21:06:29,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:29,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305207324] [2021-06-05 21:06:29,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305207324] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:29,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:29,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:29,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661555743] [2021-06-05 21:06:29,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:29,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:29,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:29,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:29,622 INFO L87 Difference]: Start difference. First operand 13383 states and 71201 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:29,853 INFO L93 Difference]: Finished difference Result 30832 states and 155201 transitions. [2021-06-05 21:06:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:29,853 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:29,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:29,951 INFO L225 Difference]: With dead ends: 30832 [2021-06-05 21:06:29,951 INFO L226 Difference]: Without dead ends: 29961 [2021-06-05 21:06:29,951 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:30,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29961 states. [2021-06-05 21:06:31,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29961 to 13263. [2021-06-05 21:06:31,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13263 states, 13262 states have (on average 5.327175388327553) internal successors, (70649), 13262 states have internal predecessors, (70649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:31,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13263 states to 13263 states and 70649 transitions. [2021-06-05 21:06:31,164 INFO L78 Accepts]: Start accepts. Automaton has 13263 states and 70649 transitions. Word has length 33 [2021-06-05 21:06:31,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:31,164 INFO L482 AbstractCegarLoop]: Abstraction has 13263 states and 70649 transitions. [2021-06-05 21:06:31,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:31,165 INFO L276 IsEmpty]: Start isEmpty. Operand 13263 states and 70649 transitions. [2021-06-05 21:06:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:31,192 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:31,192 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:31,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-05 21:06:31,192 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:31,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:31,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1514473811, now seen corresponding path program 177 times [2021-06-05 21:06:31,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:31,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708007784] [2021-06-05 21:06:31,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:31,325 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 21:06:31,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:31,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708007784] [2021-06-05 21:06:31,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708007784] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:31,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:31,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:31,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070678991] [2021-06-05 21:06:31,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:31,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:31,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:31,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:31,326 INFO L87 Difference]: Start difference. First operand 13263 states and 70649 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:31,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:31,555 INFO L93 Difference]: Finished difference Result 30856 states and 155345 transitions. [2021-06-05 21:06:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:31,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:31,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:31,651 INFO L225 Difference]: With dead ends: 30856 [2021-06-05 21:06:31,651 INFO L226 Difference]: Without dead ends: 30097 [2021-06-05 21:06:31,652 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:32,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30097 states. [2021-06-05 21:06:32,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30097 to 13387. [2021-06-05 21:06:32,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.3154788585088895) internal successors, (71153), 13386 states have internal predecessors, (71153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71153 transitions. [2021-06-05 21:06:32,826 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71153 transitions. Word has length 33 [2021-06-05 21:06:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:32,826 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71153 transitions. [2021-06-05 21:06:32,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71153 transitions. [2021-06-05 21:06:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:32,853 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:32,854 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:32,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-05 21:06:32,854 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:32,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:32,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1564041555, now seen corresponding path program 178 times [2021-06-05 21:06:32,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:32,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385347109] [2021-06-05 21:06:32,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:32,983 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 21:06:32,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:32,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385347109] [2021-06-05 21:06:32,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385347109] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:32,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:32,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:32,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95352239] [2021-06-05 21:06:32,984 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:32,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:32,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:32,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:32,984 INFO L87 Difference]: Start difference. First operand 13387 states and 71153 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:33,215 INFO L93 Difference]: Finished difference Result 30860 states and 155233 transitions. [2021-06-05 21:06:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:33,215 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:33,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:33,310 INFO L225 Difference]: With dead ends: 30860 [2021-06-05 21:06:33,310 INFO L226 Difference]: Without dead ends: 29973 [2021-06-05 21:06:33,311 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:34,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29973 states. [2021-06-05 21:06:34,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29973 to 13263. [2021-06-05 21:06:34,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13263 states, 13262 states have (on average 5.322651183833509) internal successors, (70589), 13262 states have internal predecessors, (70589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13263 states to 13263 states and 70589 transitions. [2021-06-05 21:06:34,516 INFO L78 Accepts]: Start accepts. Automaton has 13263 states and 70589 transitions. Word has length 33 [2021-06-05 21:06:34,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:34,517 INFO L482 AbstractCegarLoop]: Abstraction has 13263 states and 70589 transitions. [2021-06-05 21:06:34,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 13263 states and 70589 transitions. [2021-06-05 21:06:34,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:34,545 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:34,545 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:34,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-05 21:06:34,545 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:34,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:34,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1126468849, now seen corresponding path program 179 times [2021-06-05 21:06:34,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:34,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563793618] [2021-06-05 21:06:34,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:34,673 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 21:06:34,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:34,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563793618] [2021-06-05 21:06:34,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563793618] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:34,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:34,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:34,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830694615] [2021-06-05 21:06:34,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:34,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:34,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:34,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:34,674 INFO L87 Difference]: Start difference. First operand 13263 states and 70589 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:34,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:34,907 INFO L93 Difference]: Finished difference Result 30836 states and 155213 transitions. [2021-06-05 21:06:34,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:34,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:34,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:35,182 INFO L225 Difference]: With dead ends: 30836 [2021-06-05 21:06:35,183 INFO L226 Difference]: Without dead ends: 30085 [2021-06-05 21:06:35,183 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:35,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30085 states. [2021-06-05 21:06:36,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30085 to 13383. [2021-06-05 21:06:36,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13383 states, 13382 states have (on average 5.311687341204603) internal successors, (71081), 13382 states have internal predecessors, (71081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 71081 transitions. [2021-06-05 21:06:36,231 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 71081 transitions. Word has length 33 [2021-06-05 21:06:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:36,231 INFO L482 AbstractCegarLoop]: Abstraction has 13383 states and 71081 transitions. [2021-06-05 21:06:36,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:36,232 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 71081 transitions. [2021-06-05 21:06:36,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:36,260 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:36,260 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:36,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-05 21:06:36,260 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:36,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:36,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1191102355, now seen corresponding path program 180 times [2021-06-05 21:06:36,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:36,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149717296] [2021-06-05 21:06:36,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:36,390 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 21:06:36,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:36,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149717296] [2021-06-05 21:06:36,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149717296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:36,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:36,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:36,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627473214] [2021-06-05 21:06:36,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:36,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:36,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:36,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:36,390 INFO L87 Difference]: Start difference. First operand 13383 states and 71081 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:36,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:36,808 INFO L93 Difference]: Finished difference Result 30848 states and 155133 transitions. [2021-06-05 21:06:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:36,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:36,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:36,906 INFO L225 Difference]: With dead ends: 30848 [2021-06-05 21:06:36,906 INFO L226 Difference]: Without dead ends: 29905 [2021-06-05 21:06:36,906 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:37,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29905 states. [2021-06-05 21:06:37,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29905 to 13203. [2021-06-05 21:06:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13203 states, 13202 states have (on average 5.328359339494016) internal successors, (70345), 13202 states have internal predecessors, (70345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:37,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 70345 transitions. [2021-06-05 21:06:37,988 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 70345 transitions. Word has length 33 [2021-06-05 21:06:37,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:37,988 INFO L482 AbstractCegarLoop]: Abstraction has 13203 states and 70345 transitions. [2021-06-05 21:06:37,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:37,988 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 70345 transitions. [2021-06-05 21:06:38,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:38,017 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:38,017 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:38,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-05 21:06:38,017 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:38,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:38,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1678060175, now seen corresponding path program 181 times [2021-06-05 21:06:38,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:38,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919381137] [2021-06-05 21:06:38,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:38,213 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 27 [2021-06-05 21:06:38,265 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 21:06:38,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:38,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919381137] [2021-06-05 21:06:38,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919381137] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:38,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:38,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:38,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025391549] [2021-06-05 21:06:38,265 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:38,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:38,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:38,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:38,266 INFO L87 Difference]: Start difference. First operand 13203 states and 70345 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:38,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:38,511 INFO L93 Difference]: Finished difference Result 30780 states and 155065 transitions. [2021-06-05 21:06:38,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:38,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:38,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:38,612 INFO L225 Difference]: With dead ends: 30780 [2021-06-05 21:06:38,612 INFO L226 Difference]: Without dead ends: 30021 [2021-06-05 21:06:38,612 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:39,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30021 states. [2021-06-05 21:06:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30021 to 13371. [2021-06-05 21:06:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.319745699326851) internal successors, (71125), 13370 states have internal predecessors, (71125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71125 transitions. [2021-06-05 21:06:39,862 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71125 transitions. Word has length 33 [2021-06-05 21:06:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:39,863 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71125 transitions. [2021-06-05 21:06:39,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71125 transitions. [2021-06-05 21:06:39,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:39,892 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:39,892 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:39,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-05 21:06:39,892 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:39,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:39,892 INFO L82 PathProgramCache]: Analyzing trace with hash -10186097, now seen corresponding path program 182 times [2021-06-05 21:06:39,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:39,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656254082] [2021-06-05 21:06:39,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:40,022 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 21:06:40,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:40,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656254082] [2021-06-05 21:06:40,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656254082] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:40,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:40,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:40,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659532938] [2021-06-05 21:06:40,022 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:40,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:40,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:40,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:40,023 INFO L87 Difference]: Start difference. First operand 13371 states and 71125 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:40,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:40,335 INFO L93 Difference]: Finished difference Result 30756 states and 154861 transitions. [2021-06-05 21:06:40,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:40,335 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:40,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:40,433 INFO L225 Difference]: With dead ends: 30756 [2021-06-05 21:06:40,433 INFO L226 Difference]: Without dead ends: 29909 [2021-06-05 21:06:40,433 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:41,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29909 states. [2021-06-05 21:06:41,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29909 to 13259. [2021-06-05 21:06:41,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.325463870870418) internal successors, (70605), 13258 states have internal predecessors, (70605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70605 transitions. [2021-06-05 21:06:41,616 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70605 transitions. Word has length 33 [2021-06-05 21:06:41,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:41,616 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70605 transitions. [2021-06-05 21:06:41,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:41,616 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70605 transitions. [2021-06-05 21:06:41,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:41,643 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:41,643 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:41,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-05 21:06:41,643 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:41,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:41,644 INFO L82 PathProgramCache]: Analyzing trace with hash -295245843, now seen corresponding path program 183 times [2021-06-05 21:06:41,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:41,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123813484] [2021-06-05 21:06:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:41,772 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 21:06:41,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:41,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123813484] [2021-06-05 21:06:41,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123813484] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:41,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:41,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:41,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840207928] [2021-06-05 21:06:41,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:41,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:41,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:41,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:41,773 INFO L87 Difference]: Start difference. First operand 13259 states and 70605 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:42,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:42,009 INFO L93 Difference]: Finished difference Result 30820 states and 155165 transitions. [2021-06-05 21:06:42,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:42,010 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:42,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:42,106 INFO L225 Difference]: With dead ends: 30820 [2021-06-05 21:06:42,106 INFO L226 Difference]: Without dead ends: 30061 [2021-06-05 21:06:42,106 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30061 states. [2021-06-05 21:06:43,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30061 to 13383. [2021-06-05 21:06:43,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13383 states, 13382 states have (on average 5.313779704080107) internal successors, (71109), 13382 states have internal predecessors, (71109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:43,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 71109 transitions. [2021-06-05 21:06:43,292 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 71109 transitions. Word has length 33 [2021-06-05 21:06:43,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:43,292 INFO L482 AbstractCegarLoop]: Abstraction has 13383 states and 71109 transitions. [2021-06-05 21:06:43,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:43,292 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 71109 transitions. [2021-06-05 21:06:43,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:43,320 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:43,320 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:43,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-05 21:06:43,320 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:43,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:43,321 INFO L82 PathProgramCache]: Analyzing trace with hash 145560207, now seen corresponding path program 184 times [2021-06-05 21:06:43,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:43,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416219849] [2021-06-05 21:06:43,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:43,454 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 21:06:43,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:43,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416219849] [2021-06-05 21:06:43,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416219849] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:43,454 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:43,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:43,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585283763] [2021-06-05 21:06:43,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:43,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:43,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:43,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:43,455 INFO L87 Difference]: Start difference. First operand 13383 states and 71109 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:43,683 INFO L93 Difference]: Finished difference Result 30824 states and 155053 transitions. [2021-06-05 21:06:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:43,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:43,782 INFO L225 Difference]: With dead ends: 30824 [2021-06-05 21:06:43,782 INFO L226 Difference]: Without dead ends: 29937 [2021-06-05 21:06:43,782 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:44,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29937 states. [2021-06-05 21:06:44,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29937 to 13259. [2021-06-05 21:06:44,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.321240006034093) internal successors, (70549), 13258 states have internal predecessors, (70549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:44,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70549 transitions. [2021-06-05 21:06:44,967 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70549 transitions. Word has length 33 [2021-06-05 21:06:44,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:44,967 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70549 transitions. [2021-06-05 21:06:44,967 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:44,967 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70549 transitions. [2021-06-05 21:06:44,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:44,995 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:44,995 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:44,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-05 21:06:44,995 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:44,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:44,995 INFO L82 PathProgramCache]: Analyzing trace with hash -400147825, now seen corresponding path program 185 times [2021-06-05 21:06:44,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:44,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795277810] [2021-06-05 21:06:44,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:45,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:45,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795277810] [2021-06-05 21:06:45,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795277810] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:45,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:45,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:45,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684658857] [2021-06-05 21:06:45,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:45,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:45,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:45,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:45,139 INFO L87 Difference]: Start difference. First operand 13259 states and 70549 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:45,366 INFO L93 Difference]: Finished difference Result 30760 states and 154873 transitions. [2021-06-05 21:06:45,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:45,366 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:45,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:45,465 INFO L225 Difference]: With dead ends: 30760 [2021-06-05 21:06:45,465 INFO L226 Difference]: Without dead ends: 30025 [2021-06-05 21:06:45,465 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:46,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30025 states. [2021-06-05 21:06:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30025 to 13371. [2021-06-05 21:06:46,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.311368735976066) internal successors, (71013), 13370 states have internal predecessors, (71013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71013 transitions. [2021-06-05 21:06:46,664 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71013 transitions. Word has length 33 [2021-06-05 21:06:46,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:46,665 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71013 transitions. [2021-06-05 21:06:46,665 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:46,665 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71013 transitions. [2021-06-05 21:06:46,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:46,692 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:46,693 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:46,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-05 21:06:46,693 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:46,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:46,693 INFO L82 PathProgramCache]: Analyzing trace with hash 804501357, now seen corresponding path program 186 times [2021-06-05 21:06:46,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:46,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550087275] [2021-06-05 21:06:46,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:46,844 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 21:06:46,844 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:46,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550087275] [2021-06-05 21:06:46,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550087275] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:46,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:46,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:46,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964006271] [2021-06-05 21:06:46,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:46,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:46,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:46,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:46,845 INFO L87 Difference]: Start difference. First operand 13371 states and 71013 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:47,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:47,096 INFO L93 Difference]: Finished difference Result 30788 states and 154865 transitions. [2021-06-05 21:06:47,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:47,097 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:47,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:47,363 INFO L225 Difference]: With dead ends: 30788 [2021-06-05 21:06:47,363 INFO L226 Difference]: Without dead ends: 29857 [2021-06-05 21:06:47,363 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:48,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29857 states. [2021-06-05 21:06:48,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29857 to 13203. [2021-06-05 21:06:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13203 states, 13202 states have (on average 5.326238448719891) internal successors, (70317), 13202 states have internal predecessors, (70317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:48,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 70317 transitions. [2021-06-05 21:06:48,444 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 70317 transitions. Word has length 33 [2021-06-05 21:06:48,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:48,444 INFO L482 AbstractCegarLoop]: Abstraction has 13203 states and 70317 transitions. [2021-06-05 21:06:48,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:48,444 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 70317 transitions. [2021-06-05 21:06:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:48,473 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:48,473 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:48,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-05 21:06:48,473 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:48,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:48,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1757580913, now seen corresponding path program 187 times [2021-06-05 21:06:48,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:48,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006514416] [2021-06-05 21:06:48,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:48,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:48,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:48,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006514416] [2021-06-05 21:06:48,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006514416] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:48,617 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:48,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:48,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357760892] [2021-06-05 21:06:48,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:48,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:48,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:48,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:48,617 INFO L87 Difference]: Start difference. First operand 13203 states and 70317 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:49,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:49,080 INFO L93 Difference]: Finished difference Result 30752 states and 154937 transitions. [2021-06-05 21:06:49,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:49,080 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:49,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:49,180 INFO L225 Difference]: With dead ends: 30752 [2021-06-05 21:06:49,180 INFO L226 Difference]: Without dead ends: 30001 [2021-06-05 21:06:49,180 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30001 states. [2021-06-05 21:06:50,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30001 to 13371. [2021-06-05 21:06:50,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.317651458489155) internal successors, (71097), 13370 states have internal predecessors, (71097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:50,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71097 transitions. [2021-06-05 21:06:50,274 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71097 transitions. Word has length 33 [2021-06-05 21:06:50,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:50,274 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71097 transitions. [2021-06-05 21:06:50,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:50,275 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71097 transitions. [2021-06-05 21:06:50,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:50,303 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:50,303 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:50,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-05 21:06:50,303 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:50,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:50,303 INFO L82 PathProgramCache]: Analyzing trace with hash 910783951, now seen corresponding path program 188 times [2021-06-05 21:06:50,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:50,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202245929] [2021-06-05 21:06:50,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:50,472 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-06-05 21:06:50,566 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 21:06:50,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:50,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202245929] [2021-06-05 21:06:50,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202245929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:50,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:50,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:50,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599261453] [2021-06-05 21:06:50,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:50,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:50,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:50,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:50,567 INFO L87 Difference]: Start difference. First operand 13371 states and 71097 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:50,799 INFO L93 Difference]: Finished difference Result 30736 states and 154761 transitions. [2021-06-05 21:06:50,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:50,800 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:50,903 INFO L225 Difference]: With dead ends: 30736 [2021-06-05 21:06:50,903 INFO L226 Difference]: Without dead ends: 29889 [2021-06-05 21:06:50,903 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 273.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:51,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29889 states. [2021-06-05 21:06:51,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29889 to 13259. [2021-06-05 21:06:51,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.323351938452255) internal successors, (70577), 13258 states have internal predecessors, (70577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:52,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70577 transitions. [2021-06-05 21:06:52,186 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70577 transitions. Word has length 33 [2021-06-05 21:06:52,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:52,186 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70577 transitions. [2021-06-05 21:06:52,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:52,186 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70577 transitions. [2021-06-05 21:06:52,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:52,215 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:52,215 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:52,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-05 21:06:52,215 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:52,215 INFO L82 PathProgramCache]: Analyzing trace with hash -215725105, now seen corresponding path program 189 times [2021-06-05 21:06:52,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:52,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180279508] [2021-06-05 21:06:52,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:52,346 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 21:06:52,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:52,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180279508] [2021-06-05 21:06:52,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180279508] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:52,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:52,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:52,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816784626] [2021-06-05 21:06:52,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:52,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:52,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:52,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:52,347 INFO L87 Difference]: Start difference. First operand 13259 states and 70577 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:52,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:52,585 INFO L93 Difference]: Finished difference Result 30788 states and 155021 transitions. [2021-06-05 21:06:52,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:52,586 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:52,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:52,688 INFO L225 Difference]: With dead ends: 30788 [2021-06-05 21:06:52,689 INFO L226 Difference]: Without dead ends: 30037 [2021-06-05 21:06:52,689 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:53,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30037 states. [2021-06-05 21:06:53,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30037 to 13379. [2021-06-05 21:06:53,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.312378531918075) internal successors, (71069), 13378 states have internal predecessors, (71069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:53,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71069 transitions. [2021-06-05 21:06:53,914 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71069 transitions. Word has length 33 [2021-06-05 21:06:53,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:53,914 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71069 transitions. [2021-06-05 21:06:53,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:53,915 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71069 transitions. [2021-06-05 21:06:53,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:53,944 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:53,944 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:53,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-05 21:06:53,944 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:53,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:53,944 INFO L82 PathProgramCache]: Analyzing trace with hash 210015183, now seen corresponding path program 190 times [2021-06-05 21:06:53,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:53,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400827726] [2021-06-05 21:06:53,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:54,077 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 21:06:54,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:54,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400827726] [2021-06-05 21:06:54,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400827726] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:54,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:54,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:54,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431501045] [2021-06-05 21:06:54,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:54,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:54,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:54,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:54,078 INFO L87 Difference]: Start difference. First operand 13379 states and 71069 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:54,330 INFO L93 Difference]: Finished difference Result 30800 states and 154941 transitions. [2021-06-05 21:06:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:54,331 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:54,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:54,435 INFO L225 Difference]: With dead ends: 30800 [2021-06-05 21:06:54,435 INFO L226 Difference]: Without dead ends: 29917 [2021-06-05 21:06:54,436 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:55,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29917 states. [2021-06-05 21:06:55,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29917 to 13259. [2021-06-05 21:06:55,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13259 states, 13258 states have (on average 5.31912807361593) internal successors, (70521), 13258 states have internal predecessors, (70521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70521 transitions. [2021-06-05 21:06:55,666 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70521 transitions. Word has length 33 [2021-06-05 21:06:55,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:55,666 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70521 transitions. [2021-06-05 21:06:55,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:55,666 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70521 transitions. [2021-06-05 21:06:55,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:55,695 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:55,695 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:55,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-05 21:06:55,695 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:55,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:55,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1072473171, now seen corresponding path program 191 times [2021-06-05 21:06:55,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:55,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792828295] [2021-06-05 21:06:55,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:55,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:06:55,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:55,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792828295] [2021-06-05 21:06:55,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792828295] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:55,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:55,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:55,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957043620] [2021-06-05 21:06:55,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:55,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:55,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:55,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:55,836 INFO L87 Difference]: Start difference. First operand 13259 states and 70521 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:56,093 INFO L93 Difference]: Finished difference Result 30748 states and 154801 transitions. [2021-06-05 21:06:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:56,093 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:56,190 INFO L225 Difference]: With dead ends: 30748 [2021-06-05 21:06:56,191 INFO L226 Difference]: Without dead ends: 30013 [2021-06-05 21:06:56,191 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:57,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30013 states. [2021-06-05 21:06:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30013 to 13371. [2021-06-05 21:06:57,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.30927449513837) internal successors, (70985), 13370 states have internal predecessors, (70985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:57,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 70985 transitions. [2021-06-05 21:06:57,385 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 70985 transitions. Word has length 33 [2021-06-05 21:06:57,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:57,385 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 70985 transitions. [2021-06-05 21:06:57,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:57,385 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 70985 transitions. [2021-06-05 21:06:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:57,414 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:57,414 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:57,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-05 21:06:57,414 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:57,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1911913103, now seen corresponding path program 192 times [2021-06-05 21:06:57,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:57,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917591337] [2021-06-05 21:06:57,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:57,558 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 21:06:57,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:57,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917591337] [2021-06-05 21:06:57,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917591337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:57,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:57,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:57,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702484443] [2021-06-05 21:06:57,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:57,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:57,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:57,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:57,559 INFO L87 Difference]: Start difference. First operand 13371 states and 70985 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:57,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:57,794 INFO L93 Difference]: Finished difference Result 30776 states and 154793 transitions. [2021-06-05 21:06:57,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:57,794 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:57,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:57,896 INFO L225 Difference]: With dead ends: 30776 [2021-06-05 21:06:57,896 INFO L226 Difference]: Without dead ends: 29817 [2021-06-05 21:06:57,896 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:06:58,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29817 states. [2021-06-05 21:06:59,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29817 to 13175. [2021-06-05 21:06:59,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13175 states, 13174 states have (on average 5.329816304842872) internal successors, (70215), 13174 states have internal predecessors, (70215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:59,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70215 transitions. [2021-06-05 21:06:59,107 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70215 transitions. Word has length 33 [2021-06-05 21:06:59,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:06:59,108 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70215 transitions. [2021-06-05 21:06:59,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:59,108 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70215 transitions. [2021-06-05 21:06:59,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:06:59,136 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:06:59,136 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:06:59,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-05 21:06:59,137 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:06:59,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:06:59,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1495392015, now seen corresponding path program 193 times [2021-06-05 21:06:59,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:06:59,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800039911] [2021-06-05 21:06:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:06:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:06:59,277 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 21:06:59,277 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:06:59,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800039911] [2021-06-05 21:06:59,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800039911] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:06:59,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:06:59,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:06:59,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369240547] [2021-06-05 21:06:59,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:06:59,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:06:59,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:06:59,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:06:59,278 INFO L87 Difference]: Start difference. First operand 13175 states and 70215 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:06:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:06:59,508 INFO L93 Difference]: Finished difference Result 31530 states and 158761 transitions. [2021-06-05 21:06:59,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:06:59,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:06:59,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:06:59,778 INFO L225 Difference]: With dead ends: 31530 [2021-06-05 21:06:59,778 INFO L226 Difference]: Without dead ends: 30771 [2021-06-05 21:06:59,778 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:00,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30771 states. [2021-06-05 21:07:00,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30771 to 13419. [2021-06-05 21:07:00,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.324116857952005) internal successors, (71439), 13418 states have internal predecessors, (71439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:00,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71439 transitions. [2021-06-05 21:07:00,844 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71439 transitions. Word has length 33 [2021-06-05 21:07:00,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:00,844 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71439 transitions. [2021-06-05 21:07:00,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:00,844 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71439 transitions. [2021-06-05 21:07:00,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:00,873 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:00,873 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:00,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-05 21:07:00,873 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:00,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:00,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1111329009, now seen corresponding path program 194 times [2021-06-05 21:07:00,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:00,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359378151] [2021-06-05 21:07:00,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:01,012 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 21:07:01,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:01,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359378151] [2021-06-05 21:07:01,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359378151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:01,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:01,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:01,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328065656] [2021-06-05 21:07:01,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:01,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:01,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:01,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:01,013 INFO L87 Difference]: Start difference. First operand 13419 states and 71439 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:01,378 INFO L93 Difference]: Finished difference Result 31506 states and 158557 transitions. [2021-06-05 21:07:01,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:01,378 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:01,481 INFO L225 Difference]: With dead ends: 31506 [2021-06-05 21:07:01,481 INFO L226 Difference]: Without dead ends: 30659 [2021-06-05 21:07:01,481 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:02,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30659 states. [2021-06-05 21:07:02,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30659 to 13307. [2021-06-05 21:07:02,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.329851194949647) internal successors, (70919), 13306 states have internal predecessors, (70919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:02,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70919 transitions. [2021-06-05 21:07:02,593 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70919 transitions. Word has length 33 [2021-06-05 21:07:02,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:02,593 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70919 transitions. [2021-06-05 21:07:02,593 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:02,594 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70919 transitions. [2021-06-05 21:07:02,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:02,622 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:02,622 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:02,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-05 21:07:02,622 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:02,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:02,622 INFO L82 PathProgramCache]: Analyzing trace with hash 846171471, now seen corresponding path program 195 times [2021-06-05 21:07:02,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:02,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477746730] [2021-06-05 21:07:02,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:02,888 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 21:07:02,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:02,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477746730] [2021-06-05 21:07:02,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477746730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:02,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:02,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:02,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478238123] [2021-06-05 21:07:02,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:02,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:02,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:02,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:02,889 INFO L87 Difference]: Start difference. First operand 13307 states and 70919 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:03,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:03,115 INFO L93 Difference]: Finished difference Result 31765 states and 159764 transitions. [2021-06-05 21:07:03,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:03,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:03,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:03,213 INFO L225 Difference]: With dead ends: 31765 [2021-06-05 21:07:03,213 INFO L226 Difference]: Without dead ends: 31006 [2021-06-05 21:07:03,213 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:03,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31006 states. [2021-06-05 21:07:04,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31006 to 13495. [2021-06-05 21:07:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.3166592559656145) internal successors, (71743), 13494 states have internal predecessors, (71743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:04,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71743 transitions. [2021-06-05 21:07:04,442 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71743 transitions. Word has length 33 [2021-06-05 21:07:04,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:04,442 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71743 transitions. [2021-06-05 21:07:04,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71743 transitions. [2021-06-05 21:07:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:04,470 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:04,470 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:04,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-05 21:07:04,470 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:04,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:04,471 INFO L82 PathProgramCache]: Analyzing trace with hash -802535183, now seen corresponding path program 196 times [2021-06-05 21:07:04,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:04,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989041874] [2021-06-05 21:07:04,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:04,635 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 21:07:04,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:04,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989041874] [2021-06-05 21:07:04,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989041874] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:04,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:04,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:04,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396579666] [2021-06-05 21:07:04,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:04,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:04,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:04,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:04,635 INFO L87 Difference]: Start difference. First operand 13495 states and 71743 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:04,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:04,850 INFO L93 Difference]: Finished difference Result 31900 states and 160235 transitions. [2021-06-05 21:07:04,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:04,851 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:04,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:04,948 INFO L225 Difference]: With dead ends: 31900 [2021-06-05 21:07:04,948 INFO L226 Difference]: Without dead ends: 30818 [2021-06-05 21:07:04,948 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:05,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30818 states. [2021-06-05 21:07:06,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30818 to 13307. [2021-06-05 21:07:06,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.32323763715617) internal successors, (70831), 13306 states have internal predecessors, (70831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:06,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70831 transitions. [2021-06-05 21:07:06,143 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70831 transitions. Word has length 33 [2021-06-05 21:07:06,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:06,144 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70831 transitions. [2021-06-05 21:07:06,144 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:06,144 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70831 transitions. [2021-06-05 21:07:06,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:06,172 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:06,172 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:06,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-05 21:07:06,172 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:06,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:06,172 INFO L82 PathProgramCache]: Analyzing trace with hash 2127384817, now seen corresponding path program 197 times [2021-06-05 21:07:06,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:06,173 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412153197] [2021-06-05 21:07:06,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:06,322 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 21:07:06,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:06,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412153197] [2021-06-05 21:07:06,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412153197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:06,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:06,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:06,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120267011] [2021-06-05 21:07:06,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:06,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:06,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:06,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:06,323 INFO L87 Difference]: Start difference. First operand 13307 states and 70831 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:06,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:06,550 INFO L93 Difference]: Finished difference Result 31705 states and 159440 transitions. [2021-06-05 21:07:06,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:06,550 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:06,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:06,652 INFO L225 Difference]: With dead ends: 31705 [2021-06-05 21:07:06,652 INFO L226 Difference]: Without dead ends: 30970 [2021-06-05 21:07:06,652 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:07,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30970 states. [2021-06-05 21:07:07,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30970 to 13483. [2021-06-05 21:07:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.311897344607625) internal successors, (71615), 13482 states have internal predecessors, (71615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:07,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71615 transitions. [2021-06-05 21:07:07,878 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71615 transitions. Word has length 33 [2021-06-05 21:07:07,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:07,878 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71615 transitions. [2021-06-05 21:07:07,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:07,878 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71615 transitions. [2021-06-05 21:07:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:07,908 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:07,908 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:07,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-05 21:07:07,908 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:07,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:07,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1575632079, now seen corresponding path program 198 times [2021-06-05 21:07:07,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:07,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546992111] [2021-06-05 21:07:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:08,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:08,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546992111] [2021-06-05 21:07:08,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546992111] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:08,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:08,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:08,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70265760] [2021-06-05 21:07:08,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:08,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:08,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:08,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:08,075 INFO L87 Difference]: Start difference. First operand 13483 states and 71615 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:08,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:08,307 INFO L93 Difference]: Finished difference Result 31864 states and 160015 transitions. [2021-06-05 21:07:08,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:08,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:08,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:08,409 INFO L225 Difference]: With dead ends: 31864 [2021-06-05 21:07:08,410 INFO L226 Difference]: Without dead ends: 30706 [2021-06-05 21:07:08,410 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:09,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30706 states. [2021-06-05 21:07:09,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30706 to 13219. [2021-06-05 21:07:09,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.329021031926161) internal successors, (70439), 13218 states have internal predecessors, (70439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70439 transitions. [2021-06-05 21:07:09,607 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70439 transitions. Word has length 33 [2021-06-05 21:07:09,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:09,607 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70439 transitions. [2021-06-05 21:07:09,607 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:09,607 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70439 transitions. [2021-06-05 21:07:09,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:09,635 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:09,635 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:09,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-05 21:07:09,635 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:09,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:09,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1010421297, now seen corresponding path program 199 times [2021-06-05 21:07:09,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:09,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707523924] [2021-06-05 21:07:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:09,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:09,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707523924] [2021-06-05 21:07:09,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707523924] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:09,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:09,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:09,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673628730] [2021-06-05 21:07:09,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:09,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:09,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:09,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:09,770 INFO L87 Difference]: Start difference. First operand 13219 states and 70439 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:10,020 INFO L93 Difference]: Finished difference Result 31239 states and 157318 transitions. [2021-06-05 21:07:10,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:10,021 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:10,124 INFO L225 Difference]: With dead ends: 31239 [2021-06-05 21:07:10,124 INFO L226 Difference]: Without dead ends: 30480 [2021-06-05 21:07:10,125 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:10,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30480 states. [2021-06-05 21:07:11,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30480 to 13387. [2021-06-05 21:07:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.320409382937397) internal successors, (71219), 13386 states have internal predecessors, (71219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71219 transitions. [2021-06-05 21:07:11,318 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71219 transitions. Word has length 33 [2021-06-05 21:07:11,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:11,318 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71219 transitions. [2021-06-05 21:07:11,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:11,318 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71219 transitions. [2021-06-05 21:07:11,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:11,346 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:11,346 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:11,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-05 21:07:11,346 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:11,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:11,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1596299727, now seen corresponding path program 200 times [2021-06-05 21:07:11,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:11,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481857635] [2021-06-05 21:07:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:11,474 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 21:07:11,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:11,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481857635] [2021-06-05 21:07:11,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481857635] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:11,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:11,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:11,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306979225] [2021-06-05 21:07:11,474 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:11,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:11,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:11,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:11,475 INFO L87 Difference]: Start difference. First operand 13387 states and 71219 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:11,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:11,849 INFO L93 Difference]: Finished difference Result 31215 states and 157114 transitions. [2021-06-05 21:07:11,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:11,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:11,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:11,949 INFO L225 Difference]: With dead ends: 31215 [2021-06-05 21:07:11,949 INFO L226 Difference]: Without dead ends: 30368 [2021-06-05 21:07:11,949 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:12,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30368 states. [2021-06-05 21:07:12,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30368 to 13275. [2021-06-05 21:07:12,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.3261262618653005) internal successors, (70699), 13274 states have internal predecessors, (70699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70699 transitions. [2021-06-05 21:07:13,031 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70699 transitions. Word has length 33 [2021-06-05 21:07:13,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:13,031 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70699 transitions. [2021-06-05 21:07:13,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:13,031 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70699 transitions. [2021-06-05 21:07:13,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:13,058 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:13,059 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:13,059 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-05 21:07:13,059 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:13,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:13,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1736851889, now seen corresponding path program 201 times [2021-06-05 21:07:13,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:13,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514143116] [2021-06-05 21:07:13,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:13,365 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 21:07:13,390 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 21:07:13,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:13,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514143116] [2021-06-05 21:07:13,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514143116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:13,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:13,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:13,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652274925] [2021-06-05 21:07:13,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:13,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:13,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:13,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:13,391 INFO L87 Difference]: Start difference. First operand 13275 states and 70699 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:13,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:13,630 INFO L93 Difference]: Finished difference Result 31279 states and 157418 transitions. [2021-06-05 21:07:13,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:13,630 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:13,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:13,729 INFO L225 Difference]: With dead ends: 31279 [2021-06-05 21:07:13,729 INFO L226 Difference]: Without dead ends: 30520 [2021-06-05 21:07:13,729 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 356.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:14,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30520 states. [2021-06-05 21:07:14,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30520 to 13399. [2021-06-05 21:07:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13399 states, 13398 states have (on average 5.314449917898194) internal successors, (71203), 13398 states have internal predecessors, (71203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:14,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13399 states to 13399 states and 71203 transitions. [2021-06-05 21:07:14,982 INFO L78 Accepts]: Start accepts. Automaton has 13399 states and 71203 transitions. Word has length 33 [2021-06-05 21:07:14,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:14,982 INFO L482 AbstractCegarLoop]: Abstraction has 13399 states and 71203 transitions. [2021-06-05 21:07:14,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:14,982 INFO L276 IsEmpty]: Start isEmpty. Operand 13399 states and 71203 transitions. [2021-06-05 21:07:15,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:15,010 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:15,010 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:15,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-05 21:07:15,011 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:15,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:15,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1296045839, now seen corresponding path program 202 times [2021-06-05 21:07:15,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:15,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411554731] [2021-06-05 21:07:15,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:15,139 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 21:07:15,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:15,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411554731] [2021-06-05 21:07:15,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411554731] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:15,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:15,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:15,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415995127] [2021-06-05 21:07:15,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:15,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:15,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:15,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:15,140 INFO L87 Difference]: Start difference. First operand 13399 states and 71203 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:15,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:15,367 INFO L93 Difference]: Finished difference Result 31283 states and 157306 transitions. [2021-06-05 21:07:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:15,367 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:15,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:15,468 INFO L225 Difference]: With dead ends: 31283 [2021-06-05 21:07:15,468 INFO L226 Difference]: Without dead ends: 30396 [2021-06-05 21:07:15,468 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:16,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30396 states. [2021-06-05 21:07:16,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30396 to 13275. [2021-06-05 21:07:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.3219074883230375) internal successors, (70643), 13274 states have internal predecessors, (70643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:16,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70643 transitions. [2021-06-05 21:07:16,680 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70643 transitions. Word has length 33 [2021-06-05 21:07:16,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:16,681 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70643 transitions. [2021-06-05 21:07:16,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:16,681 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70643 transitions. [2021-06-05 21:07:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:16,709 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:16,709 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:16,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-05 21:07:16,709 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:16,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:16,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1841753871, now seen corresponding path program 203 times [2021-06-05 21:07:16,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:16,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719217547] [2021-06-05 21:07:16,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:16,849 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 21:07:16,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:16,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719217547] [2021-06-05 21:07:16,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719217547] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:16,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:16,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:16,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867638632] [2021-06-05 21:07:16,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:16,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:16,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:16,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:16,850 INFO L87 Difference]: Start difference. First operand 13275 states and 70643 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:17,080 INFO L93 Difference]: Finished difference Result 31219 states and 157126 transitions. [2021-06-05 21:07:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:17,081 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:17,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:17,185 INFO L225 Difference]: With dead ends: 31219 [2021-06-05 21:07:17,185 INFO L226 Difference]: Without dead ends: 30484 [2021-06-05 21:07:17,185 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:17,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30484 states. [2021-06-05 21:07:18,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30484 to 13387. [2021-06-05 21:07:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.312042432392051) internal successors, (71107), 13386 states have internal predecessors, (71107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:18,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71107 transitions. [2021-06-05 21:07:18,398 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71107 transitions. Word has length 33 [2021-06-05 21:07:18,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:18,399 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71107 transitions. [2021-06-05 21:07:18,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:18,399 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71107 transitions. [2021-06-05 21:07:18,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:18,428 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:18,428 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:18,428 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-05 21:07:18,428 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:18,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:18,428 INFO L82 PathProgramCache]: Analyzing trace with hash -637104689, now seen corresponding path program 204 times [2021-06-05 21:07:18,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:18,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570080837] [2021-06-05 21:07:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:18,579 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 21:07:18,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:18,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570080837] [2021-06-05 21:07:18,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570080837] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:18,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:18,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:18,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219495933] [2021-06-05 21:07:18,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:18,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:18,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:18,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:18,580 INFO L87 Difference]: Start difference. First operand 13387 states and 71107 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:18,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:18,817 INFO L93 Difference]: Finished difference Result 31247 states and 157118 transitions. [2021-06-05 21:07:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:18,817 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:18,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:18,914 INFO L225 Difference]: With dead ends: 31247 [2021-06-05 21:07:18,915 INFO L226 Difference]: Without dead ends: 30316 [2021-06-05 21:07:18,915 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:19,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30316 states. [2021-06-05 21:07:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30316 to 13219. [2021-06-05 21:07:20,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.326902708427902) internal successors, (70411), 13218 states have internal predecessors, (70411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:20,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70411 transitions. [2021-06-05 21:07:20,095 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70411 transitions. Word has length 33 [2021-06-05 21:07:20,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:20,095 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70411 transitions. [2021-06-05 21:07:20,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:20,095 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70411 transitions. [2021-06-05 21:07:20,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:20,122 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:20,122 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:20,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-05 21:07:20,123 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:20,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:20,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1420334291, now seen corresponding path program 205 times [2021-06-05 21:07:20,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:20,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33814219] [2021-06-05 21:07:20,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:20,268 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 21:07:20,268 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:20,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33814219] [2021-06-05 21:07:20,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33814219] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:20,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:20,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:20,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683240229] [2021-06-05 21:07:20,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:20,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:20,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:20,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:20,269 INFO L87 Difference]: Start difference. First operand 13219 states and 70411 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:20,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:20,541 INFO L93 Difference]: Finished difference Result 31825 states and 159992 transitions. [2021-06-05 21:07:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:20,541 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:20,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:20,644 INFO L225 Difference]: With dead ends: 31825 [2021-06-05 21:07:20,644 INFO L226 Difference]: Without dead ends: 31066 [2021-06-05 21:07:20,644 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:21,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31066 states. [2021-06-05 21:07:21,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31066 to 13501. [2021-06-05 21:07:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13501 states, 13500 states have (on average 5.31525925925926) internal successors, (71756), 13500 states have internal predecessors, (71756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:21,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13501 states to 13501 states and 71756 transitions. [2021-06-05 21:07:21,984 INFO L78 Accepts]: Start accepts. Automaton has 13501 states and 71756 transitions. Word has length 33 [2021-06-05 21:07:21,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:21,984 INFO L482 AbstractCegarLoop]: Abstraction has 13501 states and 71756 transitions. [2021-06-05 21:07:21,984 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 13501 states and 71756 transitions. [2021-06-05 21:07:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:22,012 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:22,012 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:22,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-05 21:07:22,013 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:22,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:22,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1225926351, now seen corresponding path program 206 times [2021-06-05 21:07:22,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:22,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496204469] [2021-06-05 21:07:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:22,172 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 21:07:22,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:22,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496204469] [2021-06-05 21:07:22,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496204469] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:22,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:22,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:22,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337485788] [2021-06-05 21:07:22,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:22,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:22,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:22,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:22,173 INFO L87 Difference]: Start difference. First operand 13501 states and 71756 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:22,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:22,383 INFO L93 Difference]: Finished difference Result 31960 states and 160463 transitions. [2021-06-05 21:07:22,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:22,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:22,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:22,680 INFO L225 Difference]: With dead ends: 31960 [2021-06-05 21:07:22,680 INFO L226 Difference]: Without dead ends: 30878 [2021-06-05 21:07:22,680 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:23,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30878 states. [2021-06-05 21:07:23,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30878 to 13313. [2021-06-05 21:07:23,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.3213641826923075) internal successors, (70838), 13312 states have internal predecessors, (70838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:23,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70838 transitions. [2021-06-05 21:07:23,763 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70838 transitions. Word has length 33 [2021-06-05 21:07:23,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:23,763 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70838 transitions. [2021-06-05 21:07:23,763 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70838 transitions. [2021-06-05 21:07:23,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:23,791 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:23,792 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:23,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-05 21:07:23,792 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:23,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:23,792 INFO L82 PathProgramCache]: Analyzing trace with hash -19216753, now seen corresponding path program 207 times [2021-06-05 21:07:23,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:23,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285707874] [2021-06-05 21:07:23,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:23,924 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 21:07:23,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:23,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285707874] [2021-06-05 21:07:23,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285707874] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:23,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:23,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:23,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926895634] [2021-06-05 21:07:23,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:23,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:23,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:23,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:23,925 INFO L87 Difference]: Start difference. First operand 13313 states and 70838 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:24,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:24,336 INFO L93 Difference]: Finished difference Result 31630 states and 158995 transitions. [2021-06-05 21:07:24,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:24,337 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:24,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:24,439 INFO L225 Difference]: With dead ends: 31630 [2021-06-05 21:07:24,439 INFO L226 Difference]: Without dead ends: 30871 [2021-06-05 21:07:24,439 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:25,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30871 states. [2021-06-05 21:07:25,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30871 to 13437. [2021-06-05 21:07:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13437 states, 13436 states have (on average 5.309764810955642) internal successors, (71342), 13436 states have internal predecessors, (71342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13437 states to 13437 states and 71342 transitions. [2021-06-05 21:07:25,726 INFO L78 Accepts]: Start accepts. Automaton has 13437 states and 71342 transitions. Word has length 33 [2021-06-05 21:07:25,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:25,726 INFO L482 AbstractCegarLoop]: Abstraction has 13437 states and 71342 transitions. [2021-06-05 21:07:25,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:25,726 INFO L276 IsEmpty]: Start isEmpty. Operand 13437 states and 71342 transitions. [2021-06-05 21:07:25,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:25,756 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:25,756 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:25,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-05 21:07:25,756 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:25,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:25,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1616398897, now seen corresponding path program 208 times [2021-06-05 21:07:25,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:25,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902116914] [2021-06-05 21:07:25,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:25,895 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 21:07:25,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:25,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902116914] [2021-06-05 21:07:25,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902116914] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:25,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:25,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:25,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998064495] [2021-06-05 21:07:25,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:25,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:25,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:25,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:25,896 INFO L87 Difference]: Start difference. First operand 13437 states and 71342 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:26,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:26,136 INFO L93 Difference]: Finished difference Result 31634 states and 158883 transitions. [2021-06-05 21:07:26,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:26,137 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:26,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:26,234 INFO L225 Difference]: With dead ends: 31634 [2021-06-05 21:07:26,234 INFO L226 Difference]: Without dead ends: 30747 [2021-06-05 21:07:26,235 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30747 states. [2021-06-05 21:07:27,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30747 to 13313. [2021-06-05 21:07:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13313 states, 13312 states have (on average 5.316706730769231) internal successors, (70776), 13312 states have internal predecessors, (70776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:27,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70776 transitions. [2021-06-05 21:07:27,458 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70776 transitions. Word has length 33 [2021-06-05 21:07:27,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:27,459 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70776 transitions. [2021-06-05 21:07:27,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70776 transitions. [2021-06-05 21:07:27,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:27,487 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:27,487 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:27,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-05 21:07:27,487 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:27,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:27,487 INFO L82 PathProgramCache]: Analyzing trace with hash -361221903, now seen corresponding path program 209 times [2021-06-05 21:07:27,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:27,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011917908] [2021-06-05 21:07:27,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:27,617 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 21:07:27,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:27,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011917908] [2021-06-05 21:07:27,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011917908] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:27,617 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:27,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:27,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978221382] [2021-06-05 21:07:27,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:27,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:27,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:27,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:27,618 INFO L87 Difference]: Start difference. First operand 13313 states and 70776 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:27,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:27,891 INFO L93 Difference]: Finished difference Result 31966 states and 160450 transitions. [2021-06-05 21:07:27,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:27,892 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:27,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:27,997 INFO L225 Difference]: With dead ends: 31966 [2021-06-05 21:07:27,997 INFO L226 Difference]: Without dead ends: 31072 [2021-06-05 21:07:27,997 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 136.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31072 states. [2021-06-05 21:07:29,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31072 to 13503. [2021-06-05 21:07:29,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13503 states, 13502 states have (on average 5.298548363205451) internal successors, (71541), 13502 states have internal predecessors, (71541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:29,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71541 transitions. [2021-06-05 21:07:29,231 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71541 transitions. Word has length 33 [2021-06-05 21:07:29,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:29,231 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71541 transitions. [2021-06-05 21:07:29,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:29,231 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71541 transitions. [2021-06-05 21:07:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:29,259 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:29,259 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:29,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-05 21:07:29,259 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:29,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:29,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1817665743, now seen corresponding path program 210 times [2021-06-05 21:07:29,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:29,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939351617] [2021-06-05 21:07:29,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:29,390 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 21:07:29,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:29,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939351617] [2021-06-05 21:07:29,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939351617] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:29,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:29,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:29,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790584662] [2021-06-05 21:07:29,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:29,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:29,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:29,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:29,391 INFO L87 Difference]: Start difference. First operand 13503 states and 71541 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:29,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:29,624 INFO L93 Difference]: Finished difference Result 31835 states and 159677 transitions. [2021-06-05 21:07:29,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:29,625 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:29,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:29,723 INFO L225 Difference]: With dead ends: 31835 [2021-06-05 21:07:29,723 INFO L226 Difference]: Without dead ends: 30788 [2021-06-05 21:07:29,723 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:30,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30788 states. [2021-06-05 21:07:30,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30788 to 13219. [2021-06-05 21:07:30,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.323573914359208) internal successors, (70367), 13218 states have internal predecessors, (70367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70367 transitions. [2021-06-05 21:07:30,906 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70367 transitions. Word has length 33 [2021-06-05 21:07:30,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:30,906 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70367 transitions. [2021-06-05 21:07:30,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:30,906 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70367 transitions. [2021-06-05 21:07:30,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:30,934 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:30,934 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:30,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-05 21:07:30,934 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:30,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:30,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1036318961, now seen corresponding path program 211 times [2021-06-05 21:07:30,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:30,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797854146] [2021-06-05 21:07:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:31,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:31,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797854146] [2021-06-05 21:07:31,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797854146] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:31,082 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:31,082 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:31,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593187403] [2021-06-05 21:07:31,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:31,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:31,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:31,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:31,083 INFO L87 Difference]: Start difference. First operand 13219 states and 70367 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:31,313 INFO L93 Difference]: Finished difference Result 31711 states and 159487 transitions. [2021-06-05 21:07:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:31,313 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:31,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:31,412 INFO L225 Difference]: With dead ends: 31711 [2021-06-05 21:07:31,412 INFO L226 Difference]: Without dead ends: 30976 [2021-06-05 21:07:31,413 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:32,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30976 states. [2021-06-05 21:07:32,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30976 to 13483. [2021-06-05 21:07:32,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.313974187805964) internal successors, (71643), 13482 states have internal predecessors, (71643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:32,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71643 transitions. [2021-06-05 21:07:32,617 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71643 transitions. Word has length 33 [2021-06-05 21:07:32,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:32,617 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71643 transitions. [2021-06-05 21:07:32,617 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:32,617 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71643 transitions. [2021-06-05 21:07:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:32,645 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:32,645 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:32,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-05 21:07:32,645 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:32,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:32,645 INFO L82 PathProgramCache]: Analyzing trace with hash 484566223, now seen corresponding path program 212 times [2021-06-05 21:07:32,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:32,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576173380] [2021-06-05 21:07:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:32,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:32,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576173380] [2021-06-05 21:07:32,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576173380] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:32,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:32,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:32,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11197773] [2021-06-05 21:07:32,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:32,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:32,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:32,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:32,793 INFO L87 Difference]: Start difference. First operand 13483 states and 71643 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:33,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:33,013 INFO L93 Difference]: Finished difference Result 31870 states and 160062 transitions. [2021-06-05 21:07:33,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:33,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:33,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:33,288 INFO L225 Difference]: With dead ends: 31870 [2021-06-05 21:07:33,288 INFO L226 Difference]: Without dead ends: 30800 [2021-06-05 21:07:33,288 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:34,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30800 states. [2021-06-05 21:07:34,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30800 to 13307. [2021-06-05 21:07:34,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.318728393206072) internal successors, (70771), 13306 states have internal predecessors, (70771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70771 transitions. [2021-06-05 21:07:34,368 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70771 transitions. Word has length 33 [2021-06-05 21:07:34,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:34,368 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70771 transitions. [2021-06-05 21:07:34,368 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:34,368 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70771 transitions. [2021-06-05 21:07:34,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:34,396 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:34,396 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:34,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-05 21:07:34,396 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:34,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:34,396 INFO L82 PathProgramCache]: Analyzing trace with hash -996693681, now seen corresponding path program 213 times [2021-06-05 21:07:34,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:34,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681972262] [2021-06-05 21:07:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:34,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:34,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:34,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681972262] [2021-06-05 21:07:34,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681972262] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:34,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:34,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:34,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878744061] [2021-06-05 21:07:34,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:34,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:34,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:34,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:34,551 INFO L87 Difference]: Start difference. First operand 13307 states and 70771 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:34,821 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2021-06-05 21:07:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:34,928 INFO L93 Difference]: Finished difference Result 31516 states and 158496 transitions. [2021-06-05 21:07:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:34,929 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:34,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:35,029 INFO L225 Difference]: With dead ends: 31516 [2021-06-05 21:07:35,029 INFO L226 Difference]: Without dead ends: 30781 [2021-06-05 21:07:35,030 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 323.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30781 states. [2021-06-05 21:07:36,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30781 to 13419. [2021-06-05 21:07:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.308913399910568) internal successors, (71235), 13418 states have internal predecessors, (71235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71235 transitions. [2021-06-05 21:07:36,140 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71235 transitions. Word has length 33 [2021-06-05 21:07:36,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:36,140 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71235 transitions. [2021-06-05 21:07:36,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:36,140 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71235 transitions. [2021-06-05 21:07:36,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:36,277 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:36,277 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:36,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-06-05 21:07:36,277 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:36,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:36,277 INFO L82 PathProgramCache]: Analyzing trace with hash 834950607, now seen corresponding path program 214 times [2021-06-05 21:07:36,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:36,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689895560] [2021-06-05 21:07:36,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:36,430 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 21:07:36,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:36,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689895560] [2021-06-05 21:07:36,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689895560] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:36,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:36,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:36,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663863702] [2021-06-05 21:07:36,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:36,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:36,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:36,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:36,431 INFO L87 Difference]: Start difference. First operand 13419 states and 71235 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:36,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:36,687 INFO L93 Difference]: Finished difference Result 31544 states and 158488 transitions. [2021-06-05 21:07:36,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:36,687 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:36,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:36,787 INFO L225 Difference]: With dead ends: 31544 [2021-06-05 21:07:36,787 INFO L226 Difference]: Without dead ends: 30669 [2021-06-05 21:07:36,788 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:37,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30669 states. [2021-06-05 21:07:37,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30669 to 13307. [2021-06-05 21:07:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.314519765519314) internal successors, (70715), 13306 states have internal predecessors, (70715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70715 transitions. [2021-06-05 21:07:37,999 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70715 transitions. Word has length 33 [2021-06-05 21:07:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:37,999 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70715 transitions. [2021-06-05 21:07:37,999 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70715 transitions. [2021-06-05 21:07:38,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:38,027 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:38,028 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:38,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-05 21:07:38,028 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:38,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:38,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1488739795, now seen corresponding path program 215 times [2021-06-05 21:07:38,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:38,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555364865] [2021-06-05 21:07:38,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:38,172 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 21:07:38,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:38,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555364865] [2021-06-05 21:07:38,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555364865] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:38,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:38,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:38,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909321919] [2021-06-05 21:07:38,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:38,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:38,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:38,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:38,173 INFO L87 Difference]: Start difference. First operand 13307 states and 70715 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:38,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:38,390 INFO L93 Difference]: Finished difference Result 31912 states and 160193 transitions. [2021-06-05 21:07:38,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:38,390 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:38,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:38,492 INFO L225 Difference]: With dead ends: 31912 [2021-06-05 21:07:38,492 INFO L226 Difference]: Without dead ends: 31018 [2021-06-05 21:07:38,492 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31018 states. [2021-06-05 21:07:39,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31018 to 13497. [2021-06-05 21:07:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13497 states, 13496 states have (on average 5.2963841138114995) internal successors, (71480), 13496 states have internal predecessors, (71480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71480 transitions. [2021-06-05 21:07:39,709 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71480 transitions. Word has length 33 [2021-06-05 21:07:39,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:39,709 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71480 transitions. [2021-06-05 21:07:39,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:39,709 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71480 transitions. [2021-06-05 21:07:39,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:39,738 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:39,738 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:39,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-05 21:07:39,739 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:39,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:39,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1632267791, now seen corresponding path program 216 times [2021-06-05 21:07:39,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:39,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396238858] [2021-06-05 21:07:39,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:39,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:39,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396238858] [2021-06-05 21:07:39,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396238858] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:39,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:39,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:39,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007057910] [2021-06-05 21:07:39,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:39,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:39,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:39,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:39,879 INFO L87 Difference]: Start difference. First operand 13497 states and 71480 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:40,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:40,136 INFO L93 Difference]: Finished difference Result 31781 states and 159420 transitions. [2021-06-05 21:07:40,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:40,137 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:40,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:40,236 INFO L225 Difference]: With dead ends: 31781 [2021-06-05 21:07:40,236 INFO L226 Difference]: Without dead ends: 30696 [2021-06-05 21:07:40,236 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:41,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30696 states. [2021-06-05 21:07:41,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30696 to 13175. [2021-06-05 21:07:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13175 states, 13174 states have (on average 5.328146348868985) internal successors, (70193), 13174 states have internal predecessors, (70193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:41,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70193 transitions. [2021-06-05 21:07:41,469 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70193 transitions. Word has length 33 [2021-06-05 21:07:41,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:41,469 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70193 transitions. [2021-06-05 21:07:41,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:41,469 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70193 transitions. [2021-06-05 21:07:41,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:41,496 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:41,496 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:41,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-06-05 21:07:41,496 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:41,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:41,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1516467117, now seen corresponding path program 217 times [2021-06-05 21:07:41,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:41,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394934896] [2021-06-05 21:07:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:41,637 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:41,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394934896] [2021-06-05 21:07:41,637 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394934896] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:41,637 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:41,637 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:41,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780531552] [2021-06-05 21:07:41,637 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:41,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:41,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:41,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:41,638 INFO L87 Difference]: Start difference. First operand 13175 states and 70193 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:41,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:41,875 INFO L93 Difference]: Finished difference Result 31484 states and 158570 transitions. [2021-06-05 21:07:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:41,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:41,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:41,975 INFO L225 Difference]: With dead ends: 31484 [2021-06-05 21:07:41,975 INFO L226 Difference]: Without dead ends: 30733 [2021-06-05 21:07:41,975 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:42,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30733 states. [2021-06-05 21:07:43,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30733 to 13419. [2021-06-05 21:07:43,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.322477269339693) internal successors, (71417), 13418 states have internal predecessors, (71417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:43,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71417 transitions. [2021-06-05 21:07:43,224 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71417 transitions. Word has length 33 [2021-06-05 21:07:43,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:43,225 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71417 transitions. [2021-06-05 21:07:43,225 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71417 transitions. [2021-06-05 21:07:43,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:43,252 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:43,253 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:43,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-06-05 21:07:43,253 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:43,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:43,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1931703217, now seen corresponding path program 218 times [2021-06-05 21:07:43,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:43,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240929520] [2021-06-05 21:07:43,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:43,391 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 21:07:43,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:43,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240929520] [2021-06-05 21:07:43,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240929520] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:43,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:43,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:43,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885363768] [2021-06-05 21:07:43,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:43,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:43,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:43,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:43,392 INFO L87 Difference]: Start difference. First operand 13419 states and 71417 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:43,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:43,643 INFO L93 Difference]: Finished difference Result 31468 states and 158394 transitions. [2021-06-05 21:07:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:43,643 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:43,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:43,921 INFO L225 Difference]: With dead ends: 31468 [2021-06-05 21:07:43,921 INFO L226 Difference]: Without dead ends: 30621 [2021-06-05 21:07:43,921 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:44,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30621 states. [2021-06-05 21:07:44,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30621 to 13307. [2021-06-05 21:07:44,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.3281978055012775) internal successors, (70897), 13306 states have internal predecessors, (70897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:44,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70897 transitions. [2021-06-05 21:07:44,954 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70897 transitions. Word has length 33 [2021-06-05 21:07:44,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:44,955 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70897 transitions. [2021-06-05 21:07:44,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:44,955 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70897 transitions. [2021-06-05 21:07:44,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:44,982 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:44,982 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:44,982 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-06-05 21:07:44,982 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:44,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:44,983 INFO L82 PathProgramCache]: Analyzing trace with hash 825096369, now seen corresponding path program 219 times [2021-06-05 21:07:44,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:44,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912299987] [2021-06-05 21:07:44,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:45,137 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 21:07:45,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:45,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912299987] [2021-06-05 21:07:45,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912299987] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:45,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:45,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:45,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802915903] [2021-06-05 21:07:45,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:45,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:45,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:45,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:45,138 INFO L87 Difference]: Start difference. First operand 13307 states and 70897 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:45,508 INFO L93 Difference]: Finished difference Result 31715 states and 159557 transitions. [2021-06-05 21:07:45,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:45,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:45,606 INFO L225 Difference]: With dead ends: 31715 [2021-06-05 21:07:45,606 INFO L226 Difference]: Without dead ends: 30964 [2021-06-05 21:07:45,606 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:46,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30964 states. [2021-06-05 21:07:46,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30964 to 13491. [2021-06-05 21:07:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.315715344699778) internal successors, (71709), 13490 states have internal predecessors, (71709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:46,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71709 transitions. [2021-06-05 21:07:46,693 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71709 transitions. Word has length 33 [2021-06-05 21:07:46,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:46,693 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71709 transitions. [2021-06-05 21:07:46,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:46,693 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71709 transitions. [2021-06-05 21:07:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:46,721 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:46,721 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:46,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-06-05 21:07:46,721 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:46,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:46,721 INFO L82 PathProgramCache]: Analyzing trace with hash 880550065, now seen corresponding path program 220 times [2021-06-05 21:07:46,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:46,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288653467] [2021-06-05 21:07:46,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:46,836 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-06-05 21:07:46,982 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 21:07:46,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:46,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288653467] [2021-06-05 21:07:46,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288653467] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:46,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:46,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:46,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306369265] [2021-06-05 21:07:46,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:46,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:46,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:46,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:46,983 INFO L87 Difference]: Start difference. First operand 13491 states and 71709 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:47,187 INFO L93 Difference]: Finished difference Result 31858 states and 160060 transitions. [2021-06-05 21:07:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:47,187 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:47,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:47,288 INFO L225 Difference]: With dead ends: 31858 [2021-06-05 21:07:47,288 INFO L226 Difference]: Without dead ends: 30780 [2021-06-05 21:07:47,288 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:47,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30780 states. [2021-06-05 21:07:48,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30780 to 13307. [2021-06-05 21:07:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.321584247707801) internal successors, (70809), 13306 states have internal predecessors, (70809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:48,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70809 transitions. [2021-06-05 21:07:48,541 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70809 transitions. Word has length 33 [2021-06-05 21:07:48,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:48,541 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70809 transitions. [2021-06-05 21:07:48,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:48,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70809 transitions. [2021-06-05 21:07:48,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:48,568 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:48,569 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:48,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-06-05 21:07:48,569 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:48,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:48,569 INFO L82 PathProgramCache]: Analyzing trace with hash -31651697, now seen corresponding path program 221 times [2021-06-05 21:07:48,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:48,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410708108] [2021-06-05 21:07:48,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:48,719 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 21:07:48,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:48,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410708108] [2021-06-05 21:07:48,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410708108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:48,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:48,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:48,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697922946] [2021-06-05 21:07:48,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:48,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:48,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:48,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:48,720 INFO L87 Difference]: Start difference. First operand 13307 states and 70809 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:48,945 INFO L93 Difference]: Finished difference Result 31675 states and 159305 transitions. [2021-06-05 21:07:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:48,946 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:48,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:49,047 INFO L225 Difference]: With dead ends: 31675 [2021-06-05 21:07:49,047 INFO L226 Difference]: Without dead ends: 30940 [2021-06-05 21:07:49,048 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:49,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30940 states. [2021-06-05 21:07:50,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30940 to 13483. [2021-06-05 21:07:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.310265539237502) internal successors, (71593), 13482 states have internal predecessors, (71593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71593 transitions. [2021-06-05 21:07:50,250 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71593 transitions. Word has length 33 [2021-06-05 21:07:50,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:50,250 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71593 transitions. [2021-06-05 21:07:50,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71593 transitions. [2021-06-05 21:07:50,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:50,278 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:50,278 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:50,278 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-05 21:07:50,279 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:50,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:50,279 INFO L82 PathProgramCache]: Analyzing trace with hash 43882609, now seen corresponding path program 222 times [2021-06-05 21:07:50,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:50,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817074992] [2021-06-05 21:07:50,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:50,433 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 21:07:50,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:50,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817074992] [2021-06-05 21:07:50,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817074992] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:50,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:50,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:50,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370136024] [2021-06-05 21:07:50,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:50,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:50,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:50,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:50,433 INFO L87 Difference]: Start difference. First operand 13483 states and 71593 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:50,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:50,648 INFO L93 Difference]: Finished difference Result 31834 states and 159880 transitions. [2021-06-05 21:07:50,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:50,648 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:50,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:50,748 INFO L225 Difference]: With dead ends: 31834 [2021-06-05 21:07:50,748 INFO L226 Difference]: Without dead ends: 30676 [2021-06-05 21:07:50,749 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:51,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30676 states. [2021-06-05 21:07:51,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30676 to 13219. [2021-06-05 21:07:51,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.327356634891814) internal successors, (70417), 13218 states have internal predecessors, (70417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:51,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70417 transitions. [2021-06-05 21:07:51,999 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70417 transitions. Word has length 33 [2021-06-05 21:07:51,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:51,999 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70417 transitions. [2021-06-05 21:07:51,999 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:51,999 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70417 transitions. [2021-06-05 21:07:52,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:52,026 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:52,026 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:52,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-06-05 21:07:52,026 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:52,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:52,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1031496399, now seen corresponding path program 223 times [2021-06-05 21:07:52,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:52,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961851802] [2021-06-05 21:07:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:52,156 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 21:07:52,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:52,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961851802] [2021-06-05 21:07:52,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961851802] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:52,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:52,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:52,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717713650] [2021-06-05 21:07:52,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:52,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:52,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:52,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:52,157 INFO L87 Difference]: Start difference. First operand 13219 states and 70417 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:52,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:52,387 INFO L93 Difference]: Finished difference Result 31193 states and 157127 transitions. [2021-06-05 21:07:52,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:52,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:52,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:52,487 INFO L225 Difference]: With dead ends: 31193 [2021-06-05 21:07:52,487 INFO L226 Difference]: Without dead ends: 30442 [2021-06-05 21:07:52,487 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:53,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30442 states. [2021-06-05 21:07:53,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30442 to 13387. [2021-06-05 21:07:53,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.318765874794561) internal successors, (71197), 13386 states have internal predecessors, (71197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:53,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71197 transitions. [2021-06-05 21:07:53,755 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71197 transitions. Word has length 33 [2021-06-05 21:07:53,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:53,755 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71197 transitions. [2021-06-05 21:07:53,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:53,755 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71197 transitions. [2021-06-05 21:07:53,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:53,783 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:53,783 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:53,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-06-05 21:07:53,783 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:53,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:53,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1878293361, now seen corresponding path program 224 times [2021-06-05 21:07:53,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:53,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841864884] [2021-06-05 21:07:53,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:53,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:53,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:53,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841864884] [2021-06-05 21:07:53,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841864884] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:53,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:53,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:53,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250336880] [2021-06-05 21:07:53,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:53,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:53,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:53,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:53,911 INFO L87 Difference]: Start difference. First operand 13387 states and 71197 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:54,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:54,148 INFO L93 Difference]: Finished difference Result 31177 states and 156951 transitions. [2021-06-05 21:07:54,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:54,148 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:54,248 INFO L225 Difference]: With dead ends: 31177 [2021-06-05 21:07:54,248 INFO L226 Difference]: Without dead ends: 30330 [2021-06-05 21:07:54,248 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:55,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30330 states. [2021-06-05 21:07:55,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30330 to 13275. [2021-06-05 21:07:55,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.324468886545126) internal successors, (70677), 13274 states have internal predecessors, (70677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:55,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70677 transitions. [2021-06-05 21:07:55,533 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70677 transitions. Word has length 33 [2021-06-05 21:07:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:55,533 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70677 transitions. [2021-06-05 21:07:55,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70677 transitions. [2021-06-05 21:07:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:55,562 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:55,562 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:55,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-06-05 21:07:55,562 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:55,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:55,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1757926991, now seen corresponding path program 225 times [2021-06-05 21:07:55,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:55,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525360001] [2021-06-05 21:07:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:07:55,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:55,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525360001] [2021-06-05 21:07:55,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525360001] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:55,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:55,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:55,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027577686] [2021-06-05 21:07:55,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:55,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:55,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:55,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:55,691 INFO L87 Difference]: Start difference. First operand 13275 states and 70677 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:56,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:56,115 INFO L93 Difference]: Finished difference Result 31229 states and 157211 transitions. [2021-06-05 21:07:56,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:56,115 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:56,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:56,221 INFO L225 Difference]: With dead ends: 31229 [2021-06-05 21:07:56,221 INFO L226 Difference]: Without dead ends: 30478 [2021-06-05 21:07:56,221 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:56,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30478 states. [2021-06-05 21:07:57,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30478 to 13395. [2021-06-05 21:07:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13395 states, 13394 states have (on average 5.3134985814543825) internal successors, (71169), 13394 states have internal predecessors, (71169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:57,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71169 transitions. [2021-06-05 21:07:57,323 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71169 transitions. Word has length 33 [2021-06-05 21:07:57,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:57,323 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71169 transitions. [2021-06-05 21:07:57,323 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:57,323 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71169 transitions. [2021-06-05 21:07:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:57,353 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:57,353 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:57,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-06-05 21:07:57,353 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:57,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:57,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1332186703, now seen corresponding path program 226 times [2021-06-05 21:07:57,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:57,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093857467] [2021-06-05 21:07:57,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:57,487 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 21:07:57,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:57,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093857467] [2021-06-05 21:07:57,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093857467] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:57,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:57,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:57,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179390002] [2021-06-05 21:07:57,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:57,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:57,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:57,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:57,488 INFO L87 Difference]: Start difference. First operand 13395 states and 71169 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:57,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:57,816 INFO L93 Difference]: Finished difference Result 31241 states and 157131 transitions. [2021-06-05 21:07:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:57,817 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:57,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:57,917 INFO L225 Difference]: With dead ends: 31241 [2021-06-05 21:07:57,917 INFO L226 Difference]: Without dead ends: 30358 [2021-06-05 21:07:57,917 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:07:58,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30358 states. [2021-06-05 21:07:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30358 to 13275. [2021-06-05 21:07:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13275 states, 13274 states have (on average 5.320250113002863) internal successors, (70621), 13274 states have internal predecessors, (70621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70621 transitions. [2021-06-05 21:07:59,212 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70621 transitions. Word has length 33 [2021-06-05 21:07:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:07:59,212 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70621 transitions. [2021-06-05 21:07:59,212 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70621 transitions. [2021-06-05 21:07:59,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:07:59,241 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:07:59,241 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:07:59,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-06-05 21:07:59,241 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:07:59,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:07:59,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1680292239, now seen corresponding path program 227 times [2021-06-05 21:07:59,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:07:59,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706060175] [2021-06-05 21:07:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:07:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:07:59,382 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 21:07:59,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:07:59,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706060175] [2021-06-05 21:07:59,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706060175] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:07:59,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:07:59,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:07:59,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410567495] [2021-06-05 21:07:59,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:07:59,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:07:59,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:07:59,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:07:59,383 INFO L87 Difference]: Start difference. First operand 13275 states and 70621 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:07:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:07:59,638 INFO L93 Difference]: Finished difference Result 31189 states and 156991 transitions. [2021-06-05 21:07:59,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:07:59,639 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:07:59,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:07:59,737 INFO L225 Difference]: With dead ends: 31189 [2021-06-05 21:07:59,737 INFO L226 Difference]: Without dead ends: 30454 [2021-06-05 21:07:59,737 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:00,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30454 states. [2021-06-05 21:08:00,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30454 to 13387. [2021-06-05 21:08:00,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13387 states, 13386 states have (on average 5.310398924249216) internal successors, (71085), 13386 states have internal predecessors, (71085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:00,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71085 transitions. [2021-06-05 21:08:00,964 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71085 transitions. Word has length 33 [2021-06-05 21:08:00,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:00,965 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71085 transitions. [2021-06-05 21:08:00,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:00,965 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71085 transitions. [2021-06-05 21:08:00,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:00,992 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:00,992 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:00,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-06-05 21:08:00,993 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:00,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:00,993 INFO L82 PathProgramCache]: Analyzing trace with hash 369711217, now seen corresponding path program 228 times [2021-06-05 21:08:00,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:00,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295823271] [2021-06-05 21:08:00,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:08:01,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:01,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295823271] [2021-06-05 21:08:01,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295823271] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:01,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:01,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:01,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688892024] [2021-06-05 21:08:01,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:01,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:01,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:01,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:01,135 INFO L87 Difference]: Start difference. First operand 13387 states and 71085 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:01,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:01,357 INFO L93 Difference]: Finished difference Result 31217 states and 156983 transitions. [2021-06-05 21:08:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:01,357 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:01,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:01,454 INFO L225 Difference]: With dead ends: 31217 [2021-06-05 21:08:01,455 INFO L226 Difference]: Without dead ends: 30286 [2021-06-05 21:08:01,455 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:02,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30286 states. [2021-06-05 21:08:02,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30286 to 13219. [2021-06-05 21:08:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.325238311393554) internal successors, (70389), 13218 states have internal predecessors, (70389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70389 transitions. [2021-06-05 21:08:02,644 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70389 transitions. Word has length 33 [2021-06-05 21:08:02,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:02,644 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70389 transitions. [2021-06-05 21:08:02,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:02,644 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70389 transitions. [2021-06-05 21:08:02,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:02,672 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:02,672 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:02,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-06-05 21:08:02,672 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:02,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:02,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1441409393, now seen corresponding path program 229 times [2021-06-05 21:08:02,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:02,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058044052] [2021-06-05 21:08:02,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:02,812 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 21:08:02,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:02,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058044052] [2021-06-05 21:08:02,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058044052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:02,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:02,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:02,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991430189] [2021-06-05 21:08:02,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:02,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:02,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:02,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:02,813 INFO L87 Difference]: Start difference. First operand 13219 states and 70389 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:03,034 INFO L93 Difference]: Finished difference Result 31769 states and 159760 transitions. [2021-06-05 21:08:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:03,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:03,133 INFO L225 Difference]: With dead ends: 31769 [2021-06-05 21:08:03,134 INFO L226 Difference]: Without dead ends: 31018 [2021-06-05 21:08:03,134 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:03,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31018 states. [2021-06-05 21:08:04,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31018 to 13495. [2021-06-05 21:08:04,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 5.314436045649918) internal successors, (71713), 13494 states have internal predecessors, (71713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71713 transitions. [2021-06-05 21:08:04,322 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71713 transitions. Word has length 33 [2021-06-05 21:08:04,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:04,322 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71713 transitions. [2021-06-05 21:08:04,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71713 transitions. [2021-06-05 21:08:04,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:04,350 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:04,350 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:04,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-06-05 21:08:04,350 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:04,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:04,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1385955697, now seen corresponding path program 230 times [2021-06-05 21:08:04,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:04,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301782356] [2021-06-05 21:08:04,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:04,496 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 21:08:04,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:04,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301782356] [2021-06-05 21:08:04,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301782356] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:04,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:04,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:04,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490286644] [2021-06-05 21:08:04,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:04,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:04,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:04,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:04,497 INFO L87 Difference]: Start difference. First operand 13495 states and 71713 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:04,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:04,705 INFO L93 Difference]: Finished difference Result 31912 states and 160263 transitions. [2021-06-05 21:08:04,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:04,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:04,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:04,809 INFO L225 Difference]: With dead ends: 31912 [2021-06-05 21:08:04,809 INFO L226 Difference]: Without dead ends: 30834 [2021-06-05 21:08:04,809 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 150.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:05,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30834 states. [2021-06-05 21:08:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30834 to 13311. [2021-06-05 21:08:06,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 13310 states have (on average 5.319984973703982) internal successors, (70809), 13310 states have internal predecessors, (70809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70809 transitions. [2021-06-05 21:08:06,068 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70809 transitions. Word has length 33 [2021-06-05 21:08:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:06,068 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70809 transitions. [2021-06-05 21:08:06,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70809 transitions. [2021-06-05 21:08:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:06,098 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:06,098 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:06,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-06-05 21:08:06,098 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:06,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:06,098 INFO L82 PathProgramCache]: Analyzing trace with hash -40291855, now seen corresponding path program 231 times [2021-06-05 21:08:06,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:06,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651803408] [2021-06-05 21:08:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:08:06,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:06,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651803408] [2021-06-05 21:08:06,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651803408] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:06,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:06,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:06,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29827092] [2021-06-05 21:08:06,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:06,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:06,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:06,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:06,228 INFO L87 Difference]: Start difference. First operand 13311 states and 70809 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:06,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:06,457 INFO L93 Difference]: Finished difference Result 31574 states and 158765 transitions. [2021-06-05 21:08:06,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:06,457 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:06,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:06,736 INFO L225 Difference]: With dead ends: 31574 [2021-06-05 21:08:06,737 INFO L226 Difference]: Without dead ends: 30823 [2021-06-05 21:08:06,737 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:07,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30823 states. [2021-06-05 21:08:07,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30823 to 13431. [2021-06-05 21:08:07,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13431 states, 13430 states have (on average 5.309084139985108) internal successors, (71301), 13430 states have internal predecessors, (71301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:07,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13431 states to 13431 states and 71301 transitions. [2021-06-05 21:08:07,830 INFO L78 Accepts]: Start accepts. Automaton has 13431 states and 71301 transitions. Word has length 33 [2021-06-05 21:08:07,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:07,830 INFO L482 AbstractCegarLoop]: Abstraction has 13431 states and 71301 transitions. [2021-06-05 21:08:07,830 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:07,830 INFO L276 IsEmpty]: Start isEmpty. Operand 13431 states and 71301 transitions. [2021-06-05 21:08:07,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:07,860 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:07,860 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:07,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-06-05 21:08:07,860 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:07,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:07,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1652539761, now seen corresponding path program 232 times [2021-06-05 21:08:07,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:07,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549252353] [2021-06-05 21:08:07,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:07,989 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 21:08:07,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:07,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549252353] [2021-06-05 21:08:07,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549252353] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:07,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:07,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:07,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266824730] [2021-06-05 21:08:07,990 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:07,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:07,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:07,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:07,990 INFO L87 Difference]: Start difference. First operand 13431 states and 71301 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:08,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:08,362 INFO L93 Difference]: Finished difference Result 31586 states and 158685 transitions. [2021-06-05 21:08:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:08,363 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:08,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:08,466 INFO L225 Difference]: With dead ends: 31586 [2021-06-05 21:08:08,466 INFO L226 Difference]: Without dead ends: 30703 [2021-06-05 21:08:08,466 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:09,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30703 states. [2021-06-05 21:08:09,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30703 to 13311. [2021-06-05 21:08:09,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13311 states, 13310 states have (on average 5.315477084898572) internal successors, (70749), 13310 states have internal predecessors, (70749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:09,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70749 transitions. [2021-06-05 21:08:09,581 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70749 transitions. Word has length 33 [2021-06-05 21:08:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:09,581 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70749 transitions. [2021-06-05 21:08:09,581 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70749 transitions. [2021-06-05 21:08:09,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:09,610 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:09,610 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:09,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-06-05 21:08:09,610 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:09,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:09,610 INFO L82 PathProgramCache]: Analyzing trace with hash -271432049, now seen corresponding path program 233 times [2021-06-05 21:08:09,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:09,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471199506] [2021-06-05 21:08:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:09,846 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 21:08:09,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:09,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471199506] [2021-06-05 21:08:09,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471199506] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:09,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:09,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:09,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813123437] [2021-06-05 21:08:09,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:09,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:09,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:09,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:09,847 INFO L87 Difference]: Start difference. First operand 13311 states and 70749 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:10,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:10,055 INFO L93 Difference]: Finished difference Result 31930 states and 160294 transitions. [2021-06-05 21:08:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:10,055 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:10,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:10,157 INFO L225 Difference]: With dead ends: 31930 [2021-06-05 21:08:10,157 INFO L226 Difference]: Without dead ends: 31036 [2021-06-05 21:08:10,157 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 137.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:10,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31036 states. [2021-06-05 21:08:11,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31036 to 13501. [2021-06-05 21:08:11,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13501 states, 13500 states have (on average 5.2973333333333334) internal successors, (71514), 13500 states have internal predecessors, (71514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:11,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13501 states to 13501 states and 71514 transitions. [2021-06-05 21:08:11,382 INFO L78 Accepts]: Start accepts. Automaton has 13501 states and 71514 transitions. Word has length 33 [2021-06-05 21:08:11,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:11,382 INFO L482 AbstractCegarLoop]: Abstraction has 13501 states and 71514 transitions. [2021-06-05 21:08:11,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 13501 states and 71514 transitions. [2021-06-05 21:08:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:11,409 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:11,409 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:11,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-06-05 21:08:11,409 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:11,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:11,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1445391759, now seen corresponding path program 234 times [2021-06-05 21:08:11,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:11,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169966076] [2021-06-05 21:08:11,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:11,543 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 21:08:11,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:11,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169966076] [2021-06-05 21:08:11,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169966076] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:11,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:11,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:11,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840274743] [2021-06-05 21:08:11,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:11,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:11,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:11,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:11,544 INFO L87 Difference]: Start difference. First operand 13501 states and 71514 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:11,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:11,776 INFO L93 Difference]: Finished difference Result 31799 states and 159521 transitions. [2021-06-05 21:08:11,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:11,777 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:11,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:11,874 INFO L225 Difference]: With dead ends: 31799 [2021-06-05 21:08:11,874 INFO L226 Difference]: Without dead ends: 30754 [2021-06-05 21:08:11,875 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:12,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30754 states. [2021-06-05 21:08:12,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30754 to 13219. [2021-06-05 21:08:13,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13219 states, 13218 states have (on average 5.32190951732486) internal successors, (70345), 13218 states have internal predecessors, (70345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70345 transitions. [2021-06-05 21:08:13,058 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70345 transitions. Word has length 33 [2021-06-05 21:08:13,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:13,058 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70345 transitions. [2021-06-05 21:08:13,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:13,059 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70345 transitions. [2021-06-05 21:08:13,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:13,085 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:13,085 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:13,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-05 21:08:13,085 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:13,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:13,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1023733485, now seen corresponding path program 235 times [2021-06-05 21:08:13,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:13,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393838765] [2021-06-05 21:08:13,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:13,236 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 21:08:13,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:13,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393838765] [2021-06-05 21:08:13,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393838765] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:13,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:13,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:13,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144886430] [2021-06-05 21:08:13,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:13,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:13,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:13,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:13,237 INFO L87 Difference]: Start difference. First operand 13219 states and 70345 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:13,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:13,494 INFO L93 Difference]: Finished difference Result 31693 states and 159396 transitions. [2021-06-05 21:08:13,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:13,495 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:13,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:13,594 INFO L225 Difference]: With dead ends: 31693 [2021-06-05 21:08:13,594 INFO L226 Difference]: Without dead ends: 30958 [2021-06-05 21:08:13,594 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:14,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30958 states. [2021-06-05 21:08:14,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30958 to 13483. [2021-06-05 21:08:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13483 states, 13482 states have (on average 5.3123423824358404) internal successors, (71621), 13482 states have internal predecessors, (71621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71621 transitions. [2021-06-05 21:08:14,789 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71621 transitions. Word has length 33 [2021-06-05 21:08:14,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:14,789 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71621 transitions. [2021-06-05 21:08:14,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71621 transitions. [2021-06-05 21:08:14,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:14,817 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:14,818 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:14,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-05 21:08:14,818 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:14,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:14,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1099267791, now seen corresponding path program 236 times [2021-06-05 21:08:14,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:14,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325243477] [2021-06-05 21:08:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:14,970 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 21:08:14,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:14,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325243477] [2021-06-05 21:08:14,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325243477] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:14,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:14,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:14,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284282494] [2021-06-05 21:08:14,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:14,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:14,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:14,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:14,971 INFO L87 Difference]: Start difference. First operand 13483 states and 71621 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:15,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:15,214 INFO L93 Difference]: Finished difference Result 31852 states and 159971 transitions. [2021-06-05 21:08:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:15,214 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:15,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:15,315 INFO L225 Difference]: With dead ends: 31852 [2021-06-05 21:08:15,315 INFO L226 Difference]: Without dead ends: 30782 [2021-06-05 21:08:15,315 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:16,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30782 states. [2021-06-05 21:08:16,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30782 to 13307. [2021-06-05 21:08:16,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.3170750037577035) internal successors, (70749), 13306 states have internal predecessors, (70749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70749 transitions. [2021-06-05 21:08:16,517 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70749 transitions. Word has length 33 [2021-06-05 21:08:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:16,517 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70749 transitions. [2021-06-05 21:08:16,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70749 transitions. [2021-06-05 21:08:16,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:16,546 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:16,546 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:16,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-05 21:08:16,546 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:16,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:16,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1870116273, now seen corresponding path program 237 times [2021-06-05 21:08:16,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:16,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856857984] [2021-06-05 21:08:16,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:08:16,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:16,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856857984] [2021-06-05 21:08:16,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856857984] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:16,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:16,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:16,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961000837] [2021-06-05 21:08:16,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:16,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:16,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:16,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:16,702 INFO L87 Difference]: Start difference. First operand 13307 states and 70749 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:16,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:16,926 INFO L93 Difference]: Finished difference Result 31498 states and 158405 transitions. [2021-06-05 21:08:16,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:16,926 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:16,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:17,026 INFO L225 Difference]: With dead ends: 31498 [2021-06-05 21:08:17,026 INFO L226 Difference]: Without dead ends: 30763 [2021-06-05 21:08:17,026 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:17,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30763 states. [2021-06-05 21:08:18,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30763 to 13419. [2021-06-05 21:08:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13419 states, 13418 states have (on average 5.3072738112982565) internal successors, (71213), 13418 states have internal predecessors, (71213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:18,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71213 transitions. [2021-06-05 21:08:18,254 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71213 transitions. Word has length 33 [2021-06-05 21:08:18,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:18,254 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71213 transitions. [2021-06-05 21:08:18,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:18,254 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71213 transitions. [2021-06-05 21:08:18,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:18,283 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:18,283 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:18,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-05 21:08:18,283 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:18,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:18,283 INFO L82 PathProgramCache]: Analyzing trace with hash -923718193, now seen corresponding path program 238 times [2021-06-05 21:08:18,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:18,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848149966] [2021-06-05 21:08:18,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:18,441 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 21:08:18,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:18,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848149966] [2021-06-05 21:08:18,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848149966] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:18,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:18,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:18,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884519026] [2021-06-05 21:08:18,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:18,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:18,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:18,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:18,442 INFO L87 Difference]: Start difference. First operand 13419 states and 71213 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:18,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:18,809 INFO L93 Difference]: Finished difference Result 31526 states and 158397 transitions. [2021-06-05 21:08:18,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:18,810 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:18,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:18,914 INFO L225 Difference]: With dead ends: 31526 [2021-06-05 21:08:18,914 INFO L226 Difference]: Without dead ends: 30651 [2021-06-05 21:08:18,914 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30651 states. [2021-06-05 21:08:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30651 to 13307. [2021-06-05 21:08:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13307 states, 13306 states have (on average 5.312866376070946) internal successors, (70693), 13306 states have internal predecessors, (70693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:20,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70693 transitions. [2021-06-05 21:08:20,009 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70693 transitions. Word has length 33 [2021-06-05 21:08:20,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:20,009 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70693 transitions. [2021-06-05 21:08:20,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:20,009 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70693 transitions. [2021-06-05 21:08:20,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:20,037 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:20,037 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:20,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-05 21:08:20,037 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:20,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:20,038 INFO L82 PathProgramCache]: Analyzing trace with hash 56323377, now seen corresponding path program 239 times [2021-06-05 21:08:20,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:20,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712955267] [2021-06-05 21:08:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:20,261 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-05 21:08:20,287 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 21:08:20,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:20,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712955267] [2021-06-05 21:08:20,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712955267] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:20,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:20,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:20,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621106207] [2021-06-05 21:08:20,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:20,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:20,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:20,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:20,288 INFO L87 Difference]: Start difference. First operand 13307 states and 70693 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:20,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:20,503 INFO L93 Difference]: Finished difference Result 31894 states and 160102 transitions. [2021-06-05 21:08:20,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:20,503 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:20,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:20,603 INFO L225 Difference]: With dead ends: 31894 [2021-06-05 21:08:20,603 INFO L226 Difference]: Without dead ends: 31000 [2021-06-05 21:08:20,603 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 255.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:21,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31000 states. [2021-06-05 21:08:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31000 to 13497. [2021-06-05 21:08:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13497 states, 13496 states have (on average 5.294754001185536) internal successors, (71458), 13496 states have internal predecessors, (71458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:21,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71458 transitions. [2021-06-05 21:08:21,842 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71458 transitions. Word has length 33 [2021-06-05 21:08:21,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:21,842 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71458 transitions. [2021-06-05 21:08:21,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:21,842 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71458 transitions. [2021-06-05 21:08:21,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:21,870 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:21,870 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:21,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-05 21:08:21,871 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:21,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:21,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1976689265, now seen corresponding path program 240 times [2021-06-05 21:08:21,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:21,871 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326054764] [2021-06-05 21:08:21,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:22,011 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 21:08:22,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:22,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326054764] [2021-06-05 21:08:22,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326054764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:22,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:22,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:22,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538300054] [2021-06-05 21:08:22,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:22,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:22,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:22,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:22,012 INFO L87 Difference]: Start difference. First operand 13497 states and 71458 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:22,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:22,246 INFO L93 Difference]: Finished difference Result 31763 states and 159329 transitions. [2021-06-05 21:08:22,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:22,246 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:22,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:22,343 INFO L225 Difference]: With dead ends: 31763 [2021-06-05 21:08:22,343 INFO L226 Difference]: Without dead ends: 30656 [2021-06-05 21:08:22,343 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:23,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30656 states. [2021-06-05 21:08:23,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30656 to 13153. [2021-06-05 21:08:23,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13153 states, 13152 states have (on average 5.331280413625304) internal successors, (70117), 13152 states have internal predecessors, (70117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:23,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 70117 transitions. [2021-06-05 21:08:23,540 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 70117 transitions. Word has length 33 [2021-06-05 21:08:23,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:23,540 INFO L482 AbstractCegarLoop]: Abstraction has 13153 states and 70117 transitions. [2021-06-05 21:08:23,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:23,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 70117 transitions. [2021-06-05 21:08:23,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:23,567 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:23,567 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:23,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-05 21:08:23,568 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:23,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:23,568 INFO L82 PathProgramCache]: Analyzing trace with hash 327399373, now seen corresponding path program 241 times [2021-06-05 21:08:23,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:23,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581337113] [2021-06-05 21:08:23,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:23,709 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 21:08:23,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:23,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581337113] [2021-06-05 21:08:23,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581337113] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:23,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:23,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:23,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349942695] [2021-06-05 21:08:23,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:23,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:23,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:23,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:23,710 INFO L87 Difference]: Start difference. First operand 13153 states and 70117 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:23,953 INFO L93 Difference]: Finished difference Result 32231 states and 161807 transitions. [2021-06-05 21:08:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:23,954 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:23,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:24,053 INFO L225 Difference]: With dead ends: 32231 [2021-06-05 21:08:24,053 INFO L226 Difference]: Without dead ends: 31472 [2021-06-05 21:08:24,053 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:24,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31472 states. [2021-06-05 21:08:25,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31472 to 13482. [2021-06-05 21:08:25,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13482 states, 13481 states have (on average 5.322973073214153) internal successors, (71759), 13481 states have internal predecessors, (71759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:25,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13482 states to 13482 states and 71759 transitions. [2021-06-05 21:08:25,282 INFO L78 Accepts]: Start accepts. Automaton has 13482 states and 71759 transitions. Word has length 33 [2021-06-05 21:08:25,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:25,282 INFO L482 AbstractCegarLoop]: Abstraction has 13482 states and 71759 transitions. [2021-06-05 21:08:25,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 13482 states and 71759 transitions. [2021-06-05 21:08:25,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:25,312 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:25,312 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:25,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-06-05 21:08:25,312 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:25,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:25,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1408461999, now seen corresponding path program 242 times [2021-06-05 21:08:25,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:25,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370599880] [2021-06-05 21:08:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:25,453 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 21:08:25,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:25,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370599880] [2021-06-05 21:08:25,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370599880] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:25,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:25,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:25,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220830745] [2021-06-05 21:08:25,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:25,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:25,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:25,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:25,454 INFO L87 Difference]: Start difference. First operand 13482 states and 71759 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:25,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:25,686 INFO L93 Difference]: Finished difference Result 32223 states and 161659 transitions. [2021-06-05 21:08:25,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:25,687 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:25,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:25,789 INFO L225 Difference]: With dead ends: 32223 [2021-06-05 21:08:25,789 INFO L226 Difference]: Without dead ends: 31352 [2021-06-05 21:08:25,790 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:26,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31352 states. [2021-06-05 21:08:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31352 to 13362. [2021-06-05 21:08:26,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13362 states, 13361 states have (on average 5.3294663573085845) internal successors, (71207), 13361 states have internal predecessors, (71207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:26,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 71207 transitions. [2021-06-05 21:08:26,996 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 71207 transitions. Word has length 33 [2021-06-05 21:08:26,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:26,996 INFO L482 AbstractCegarLoop]: Abstraction has 13362 states and 71207 transitions. [2021-06-05 21:08:26,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:26,996 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 71207 transitions. [2021-06-05 21:08:27,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:27,025 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:27,025 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:27,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-06-05 21:08:27,025 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:27,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:27,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2046463949, now seen corresponding path program 243 times [2021-06-05 21:08:27,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:27,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040929887] [2021-06-05 21:08:27,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:08:27,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:27,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040929887] [2021-06-05 21:08:27,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040929887] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:27,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:27,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:27,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784517858] [2021-06-05 21:08:27,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:27,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:27,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:27,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:27,183 INFO L87 Difference]: Start difference. First operand 13362 states and 71207 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:27,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:27,431 INFO L93 Difference]: Finished difference Result 32442 states and 162706 transitions. [2021-06-05 21:08:27,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:27,432 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:27,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:27,535 INFO L225 Difference]: With dead ends: 32442 [2021-06-05 21:08:27,535 INFO L226 Difference]: Without dead ends: 31683 [2021-06-05 21:08:27,535 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:28,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31683 states. [2021-06-05 21:08:28,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31683 to 13550. [2021-06-05 21:08:28,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13550 states, 13549 states have (on average 5.316333308731272) internal successors, (72031), 13549 states have internal predecessors, (72031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:28,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13550 states to 13550 states and 72031 transitions. [2021-06-05 21:08:28,770 INFO L78 Accepts]: Start accepts. Automaton has 13550 states and 72031 transitions. Word has length 33 [2021-06-05 21:08:28,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:28,770 INFO L482 AbstractCegarLoop]: Abstraction has 13550 states and 72031 transitions. [2021-06-05 21:08:28,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:28,770 INFO L276 IsEmpty]: Start isEmpty. Operand 13550 states and 72031 transitions. [2021-06-05 21:08:28,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:28,799 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:28,800 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:28,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-06-05 21:08:28,800 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:28,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1478731827, now seen corresponding path program 244 times [2021-06-05 21:08:28,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:28,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7108502] [2021-06-05 21:08:28,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:28,958 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 21:08:28,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:28,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7108502] [2021-06-05 21:08:28,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7108502] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:28,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:28,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:28,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060842115] [2021-06-05 21:08:28,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:28,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:28,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:28,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:28,959 INFO L87 Difference]: Start difference. First operand 13550 states and 72031 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:29,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:29,318 INFO L93 Difference]: Finished difference Result 32577 states and 163177 transitions. [2021-06-05 21:08:29,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:29,319 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:29,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:29,424 INFO L225 Difference]: With dead ends: 32577 [2021-06-05 21:08:29,424 INFO L226 Difference]: Without dead ends: 31495 [2021-06-05 21:08:29,424 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:30,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31495 states. [2021-06-05 21:08:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31495 to 13362. [2021-06-05 21:08:30,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13362 states, 13361 states have (on average 5.32258064516129) internal successors, (71115), 13361 states have internal predecessors, (71115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 71115 transitions. [2021-06-05 21:08:30,503 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 71115 transitions. Word has length 33 [2021-06-05 21:08:30,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:30,503 INFO L482 AbstractCegarLoop]: Abstraction has 13362 states and 71115 transitions. [2021-06-05 21:08:30,503 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:30,503 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 71115 transitions. [2021-06-05 21:08:30,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:30,530 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:30,531 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:30,531 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-06-05 21:08:30,531 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:30,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:30,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1860498385, now seen corresponding path program 245 times [2021-06-05 21:08:30,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:30,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287831764] [2021-06-05 21:08:30,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:08:30,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:30,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287831764] [2021-06-05 21:08:30,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287831764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:30,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:30,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:30,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959719395] [2021-06-05 21:08:30,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:30,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:30,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:30,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:30,793 INFO L87 Difference]: Start difference. First operand 13362 states and 71115 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:31,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:31,022 INFO L93 Difference]: Finished difference Result 32422 states and 162542 transitions. [2021-06-05 21:08:31,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:31,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:31,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:31,122 INFO L225 Difference]: With dead ends: 32422 [2021-06-05 21:08:31,122 INFO L226 Difference]: Without dead ends: 31671 [2021-06-05 21:08:31,122 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 285.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:31,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31671 states. [2021-06-05 21:08:32,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31671 to 13546. [2021-06-05 21:08:32,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13546 states, 13545 states have (on average 5.310225175341454) internal successors, (71927), 13545 states have internal predecessors, (71927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:32,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13546 states to 13546 states and 71927 transitions. [2021-06-05 21:08:32,373 INFO L78 Accepts]: Start accepts. Automaton has 13546 states and 71927 transitions. Word has length 33 [2021-06-05 21:08:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:32,373 INFO L482 AbstractCegarLoop]: Abstraction has 13546 states and 71927 transitions. [2021-06-05 21:08:32,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 13546 states and 71927 transitions. [2021-06-05 21:08:32,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:32,400 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:32,400 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:32,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-06-05 21:08:32,400 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:32,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:32,400 INFO L82 PathProgramCache]: Analyzing trace with hash 613433485, now seen corresponding path program 246 times [2021-06-05 21:08:32,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:32,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667028526] [2021-06-05 21:08:32,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:32,557 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 21:08:32,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:32,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667028526] [2021-06-05 21:08:32,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667028526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:32,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:32,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:32,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327302965] [2021-06-05 21:08:32,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:32,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:32,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:32,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:32,558 INFO L87 Difference]: Start difference. First operand 13546 states and 71927 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:32,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:32,763 INFO L93 Difference]: Finished difference Result 32565 states and 163045 transitions. [2021-06-05 21:08:32,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:32,763 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:32,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:32,862 INFO L225 Difference]: With dead ends: 32565 [2021-06-05 21:08:32,862 INFO L226 Difference]: Without dead ends: 31395 [2021-06-05 21:08:32,863 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31395 states. [2021-06-05 21:08:34,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31395 to 13270. [2021-06-05 21:08:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 13269 states have (on average 5.328886879192102) internal successors, (70709), 13269 states have internal predecessors, (70709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 70709 transitions. [2021-06-05 21:08:34,178 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 70709 transitions. Word has length 33 [2021-06-05 21:08:34,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:34,178 INFO L482 AbstractCegarLoop]: Abstraction has 13270 states and 70709 transitions. [2021-06-05 21:08:34,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 70709 transitions. [2021-06-05 21:08:34,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:34,206 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:34,206 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:34,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-06-05 21:08:34,206 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:34,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:34,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1636259405, now seen corresponding path program 247 times [2021-06-05 21:08:34,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:34,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589761826] [2021-06-05 21:08:34,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:34,332 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 21:08:34,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:34,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589761826] [2021-06-05 21:08:34,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589761826] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:34,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:34,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:34,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921397741] [2021-06-05 21:08:34,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:34,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:34,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:34,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:34,334 INFO L87 Difference]: Start difference. First operand 13270 states and 70709 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:34,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:34,568 INFO L93 Difference]: Finished difference Result 31942 states and 160367 transitions. [2021-06-05 21:08:34,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:34,569 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:34,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:34,670 INFO L225 Difference]: With dead ends: 31942 [2021-06-05 21:08:34,670 INFO L226 Difference]: Without dead ends: 31183 [2021-06-05 21:08:34,670 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:35,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31183 states. [2021-06-05 21:08:35,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31183 to 13450. [2021-06-05 21:08:35,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13450 states, 13449 states have (on average 5.319131533943044) internal successors, (71537), 13449 states have internal predecessors, (71537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13450 states to 13450 states and 71537 transitions. [2021-06-05 21:08:35,900 INFO L78 Accepts]: Start accepts. Automaton has 13450 states and 71537 transitions. Word has length 33 [2021-06-05 21:08:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:35,901 INFO L482 AbstractCegarLoop]: Abstraction has 13450 states and 71537 transitions. [2021-06-05 21:08:35,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:35,901 INFO L276 IsEmpty]: Start isEmpty. Operand 13450 states and 71537 transitions. [2021-06-05 21:08:35,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:35,929 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:35,930 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:35,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-06-05 21:08:35,930 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:35,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:35,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1577645265, now seen corresponding path program 248 times [2021-06-05 21:08:35,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:35,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283729676] [2021-06-05 21:08:35,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:08:36,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:36,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283729676] [2021-06-05 21:08:36,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283729676] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:36,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:36,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:36,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686678192] [2021-06-05 21:08:36,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:36,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:36,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:36,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:36,070 INFO L87 Difference]: Start difference. First operand 13450 states and 71537 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:36,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:36,301 INFO L93 Difference]: Finished difference Result 31934 states and 160219 transitions. [2021-06-05 21:08:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:36,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:36,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:36,402 INFO L225 Difference]: With dead ends: 31934 [2021-06-05 21:08:36,402 INFO L226 Difference]: Without dead ends: 31063 [2021-06-05 21:08:36,402 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:37,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31063 states. [2021-06-05 21:08:37,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31063 to 13330. [2021-06-05 21:08:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13329 states have (on average 5.325605821892115) internal successors, (70985), 13329 states have internal predecessors, (70985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 70985 transitions. [2021-06-05 21:08:37,668 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 70985 transitions. Word has length 33 [2021-06-05 21:08:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:37,668 INFO L482 AbstractCegarLoop]: Abstraction has 13330 states and 70985 transitions. [2021-06-05 21:08:37,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:37,668 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 70985 transitions. [2021-06-05 21:08:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:37,696 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:37,696 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:37,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-06-05 21:08:37,696 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:37,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:37,697 INFO L82 PathProgramCache]: Analyzing trace with hash -87292433, now seen corresponding path program 249 times [2021-06-05 21:08:37,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:37,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953487480] [2021-06-05 21:08:37,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:37,848 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 21:08:37,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:37,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953487480] [2021-06-05 21:08:37,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953487480] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:37,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:37,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:37,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498620849] [2021-06-05 21:08:37,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:37,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:37,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:37,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:37,851 INFO L87 Difference]: Start difference. First operand 13330 states and 70985 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:38,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:38,095 INFO L93 Difference]: Finished difference Result 31960 states and 160368 transitions. [2021-06-05 21:08:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:38,096 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:38,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:38,200 INFO L225 Difference]: With dead ends: 31960 [2021-06-05 21:08:38,200 INFO L226 Difference]: Without dead ends: 31201 [2021-06-05 21:08:38,200 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:39,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31201 states. [2021-06-05 21:08:39,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31201 to 13454. [2021-06-05 21:08:39,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13454 states, 13453 states have (on average 5.313982011447261) internal successors, (71489), 13453 states have internal predecessors, (71489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:39,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13454 states to 13454 states and 71489 transitions. [2021-06-05 21:08:39,446 INFO L78 Accepts]: Start accepts. Automaton has 13454 states and 71489 transitions. Word has length 33 [2021-06-05 21:08:39,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:39,446 INFO L482 AbstractCegarLoop]: Abstraction has 13454 states and 71489 transitions. [2021-06-05 21:08:39,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:39,447 INFO L276 IsEmpty]: Start isEmpty. Operand 13454 states and 71489 transitions. [2021-06-05 21:08:39,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:39,476 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:39,477 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:39,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-06-05 21:08:39,477 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:39,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:39,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1874674193, now seen corresponding path program 250 times [2021-06-05 21:08:39,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:39,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583852718] [2021-06-05 21:08:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:39,608 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 21:08:39,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:39,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583852718] [2021-06-05 21:08:39,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583852718] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:39,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:39,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:39,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825309033] [2021-06-05 21:08:39,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:39,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:39,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:39,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:39,610 INFO L87 Difference]: Start difference. First operand 13454 states and 71489 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:39,992 INFO L93 Difference]: Finished difference Result 31966 states and 160261 transitions. [2021-06-05 21:08:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:39,993 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:39,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:40,097 INFO L225 Difference]: With dead ends: 31966 [2021-06-05 21:08:40,097 INFO L226 Difference]: Without dead ends: 31077 [2021-06-05 21:08:40,097 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:40,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31077 states. [2021-06-05 21:08:41,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31077 to 13330. [2021-06-05 21:08:41,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 13329 states have (on average 5.321104358916648) internal successors, (70925), 13329 states have internal predecessors, (70925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:41,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 70925 transitions. [2021-06-05 21:08:41,183 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 70925 transitions. Word has length 33 [2021-06-05 21:08:41,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:41,184 INFO L482 AbstractCegarLoop]: Abstraction has 13330 states and 70925 transitions. [2021-06-05 21:08:41,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 70925 transitions. [2021-06-05 21:08:41,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:41,212 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:41,212 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:41,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-06-05 21:08:41,212 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:41,212 INFO L82 PathProgramCache]: Analyzing trace with hash 300712529, now seen corresponding path program 251 times [2021-06-05 21:08:41,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:41,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445744845] [2021-06-05 21:08:41,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:41,355 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 21:08:41,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:41,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445744845] [2021-06-05 21:08:41,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445744845] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:41,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:41,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:41,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130283397] [2021-06-05 21:08:41,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:41,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:41,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:41,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:41,356 INFO L87 Difference]: Start difference. First operand 13330 states and 70925 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:41,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:41,770 INFO L93 Difference]: Finished difference Result 31940 states and 160236 transitions. [2021-06-05 21:08:41,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:41,771 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:41,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:41,871 INFO L225 Difference]: With dead ends: 31940 [2021-06-05 21:08:41,871 INFO L226 Difference]: Without dead ends: 31189 [2021-06-05 21:08:41,871 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:42,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31189 states. [2021-06-05 21:08:42,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31189 to 13450. [2021-06-05 21:08:42,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13450 states, 13449 states have (on average 5.31020893746747) internal successors, (71417), 13449 states have internal predecessors, (71417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13450 states to 13450 states and 71417 transitions. [2021-06-05 21:08:43,162 INFO L78 Accepts]: Start accepts. Automaton has 13450 states and 71417 transitions. Word has length 33 [2021-06-05 21:08:43,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:43,162 INFO L482 AbstractCegarLoop]: Abstraction has 13450 states and 71417 transitions. [2021-06-05 21:08:43,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:43,162 INFO L276 IsEmpty]: Start isEmpty. Operand 13450 states and 71417 transitions. [2021-06-05 21:08:43,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:43,190 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:43,190 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:43,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-06-05 21:08:43,190 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:43,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:43,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1505361711, now seen corresponding path program 252 times [2021-06-05 21:08:43,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:43,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144874900] [2021-06-05 21:08:43,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:43,333 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 21:08:43,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:43,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144874900] [2021-06-05 21:08:43,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144874900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:43,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:43,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:43,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829603925] [2021-06-05 21:08:43,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:43,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:43,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:43,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:43,334 INFO L87 Difference]: Start difference. First operand 13450 states and 71417 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:43,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:43,567 INFO L93 Difference]: Finished difference Result 31954 states and 160161 transitions. [2021-06-05 21:08:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:43,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:43,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:43,666 INFO L225 Difference]: With dead ends: 31954 [2021-06-05 21:08:43,666 INFO L226 Difference]: Without dead ends: 31009 [2021-06-05 21:08:43,666 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:44,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31009 states. [2021-06-05 21:08:44,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31009 to 13270. [2021-06-05 21:08:44,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 13269 states have (on average 5.32662597030673) internal successors, (70679), 13269 states have internal predecessors, (70679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:44,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 70679 transitions. [2021-06-05 21:08:44,903 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 70679 transitions. Word has length 33 [2021-06-05 21:08:44,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:44,903 INFO L482 AbstractCegarLoop]: Abstraction has 13270 states and 70679 transitions. [2021-06-05 21:08:44,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:44,904 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 70679 transitions. [2021-06-05 21:08:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:44,933 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:44,933 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:44,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-06-05 21:08:44,933 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:44,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:44,933 INFO L82 PathProgramCache]: Analyzing trace with hash -925635089, now seen corresponding path program 253 times [2021-06-05 21:08:44,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:44,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012026518] [2021-06-05 21:08:44,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:45,093 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 21:08:45,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:45,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012026518] [2021-06-05 21:08:45,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012026518] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:45,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:45,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:45,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272391627] [2021-06-05 21:08:45,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:45,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:45,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:45,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:45,094 INFO L87 Difference]: Start difference. First operand 13270 states and 70679 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:45,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:45,335 INFO L93 Difference]: Finished difference Result 32565 states and 163186 transitions. [2021-06-05 21:08:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:45,336 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:45,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:45,437 INFO L225 Difference]: With dead ends: 32565 [2021-06-05 21:08:45,437 INFO L226 Difference]: Without dead ends: 31806 [2021-06-05 21:08:45,437 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:46,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31806 states. [2021-06-05 21:08:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31806 to 13584. [2021-06-05 21:08:46,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13584 states, 13583 states have (on average 5.313111978208054) internal successors, (72168), 13583 states have internal predecessors, (72168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:46,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13584 states to 13584 states and 72168 transitions. [2021-06-05 21:08:46,661 INFO L78 Accepts]: Start accepts. Automaton has 13584 states and 72168 transitions. Word has length 33 [2021-06-05 21:08:46,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:46,661 INFO L482 AbstractCegarLoop]: Abstraction has 13584 states and 72168 transitions. [2021-06-05 21:08:46,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:46,661 INFO L276 IsEmpty]: Start isEmpty. Operand 13584 states and 72168 transitions. [2021-06-05 21:08:46,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:46,689 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:46,689 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:46,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-06-05 21:08:46,689 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:46,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:46,689 INFO L82 PathProgramCache]: Analyzing trace with hash -155863569, now seen corresponding path program 254 times [2021-06-05 21:08:46,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:46,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602957952] [2021-06-05 21:08:46,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:46,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:08:46,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:46,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602957952] [2021-06-05 21:08:46,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602957952] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:46,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:46,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:46,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305429865] [2021-06-05 21:08:46,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:46,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:46,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:46,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:46,836 INFO L87 Difference]: Start difference. First operand 13584 states and 72168 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:47,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:47,073 INFO L93 Difference]: Finished difference Result 32700 states and 163657 transitions. [2021-06-05 21:08:47,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:47,074 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:47,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:47,175 INFO L225 Difference]: With dead ends: 32700 [2021-06-05 21:08:47,175 INFO L226 Difference]: Without dead ends: 31618 [2021-06-05 21:08:47,175 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:48,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31618 states. [2021-06-05 21:08:48,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31618 to 13396. [2021-06-05 21:08:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13396 states, 13395 states have (on average 5.319148936170213) internal successors, (71250), 13395 states have internal predecessors, (71250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:48,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13396 states to 13396 states and 71250 transitions. [2021-06-05 21:08:48,384 INFO L78 Accepts]: Start accepts. Automaton has 13396 states and 71250 transitions. Word has length 33 [2021-06-05 21:08:48,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:48,384 INFO L482 AbstractCegarLoop]: Abstraction has 13396 states and 71250 transitions. [2021-06-05 21:08:48,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:48,384 INFO L276 IsEmpty]: Start isEmpty. Operand 13396 states and 71250 transitions. [2021-06-05 21:08:48,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:48,413 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:48,413 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:48,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-06-05 21:08:48,413 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:48,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:48,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1346270669, now seen corresponding path program 255 times [2021-06-05 21:08:48,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:48,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950901062] [2021-06-05 21:08:48,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:48,561 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 21:08:48,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:48,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950901062] [2021-06-05 21:08:48,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950901062] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:48,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:48,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:48,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625245625] [2021-06-05 21:08:48,561 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:48,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:48,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:48,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:48,562 INFO L87 Difference]: Start difference. First operand 13396 states and 71250 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:48,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:48,788 INFO L93 Difference]: Finished difference Result 32372 states and 162194 transitions. [2021-06-05 21:08:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:48,788 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:48,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:48,889 INFO L225 Difference]: With dead ends: 32372 [2021-06-05 21:08:48,889 INFO L226 Difference]: Without dead ends: 31613 [2021-06-05 21:08:48,889 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31613 states. [2021-06-05 21:08:50,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31613 to 13520. [2021-06-05 21:08:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13520 states, 13519 states have (on average 5.307641097714328) internal successors, (71754), 13519 states have internal predecessors, (71754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:50,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13520 states to 13520 states and 71754 transitions. [2021-06-05 21:08:50,104 INFO L78 Accepts]: Start accepts. Automaton has 13520 states and 71754 transitions. Word has length 33 [2021-06-05 21:08:50,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:50,104 INFO L482 AbstractCegarLoop]: Abstraction has 13520 states and 71754 transitions. [2021-06-05 21:08:50,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:50,104 INFO L276 IsEmpty]: Start isEmpty. Operand 13520 states and 71754 transitions. [2021-06-05 21:08:50,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:50,132 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:50,132 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:50,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-06-05 21:08:50,132 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:50,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:50,133 INFO L82 PathProgramCache]: Analyzing trace with hash 878941679, now seen corresponding path program 256 times [2021-06-05 21:08:50,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:50,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862944410] [2021-06-05 21:08:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:08:50,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:50,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862944410] [2021-06-05 21:08:50,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862944410] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:50,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:50,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:50,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522375729] [2021-06-05 21:08:50,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:50,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:50,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:50,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:50,264 INFO L87 Difference]: Start difference. First operand 13520 states and 71754 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:50,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:50,676 INFO L93 Difference]: Finished difference Result 32378 states and 162087 transitions. [2021-06-05 21:08:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:50,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:50,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:50,778 INFO L225 Difference]: With dead ends: 32378 [2021-06-05 21:08:50,778 INFO L226 Difference]: Without dead ends: 31489 [2021-06-05 21:08:50,778 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:51,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31489 states. [2021-06-05 21:08:51,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31489 to 13396. [2021-06-05 21:08:51,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13396 states, 13395 states have (on average 5.314520343411721) internal successors, (71188), 13395 states have internal predecessors, (71188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:51,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13396 states to 13396 states and 71188 transitions. [2021-06-05 21:08:51,852 INFO L78 Accepts]: Start accepts. Automaton has 13396 states and 71188 transitions. Word has length 33 [2021-06-05 21:08:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:51,852 INFO L482 AbstractCegarLoop]: Abstraction has 13396 states and 71188 transitions. [2021-06-05 21:08:51,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand 13396 states and 71188 transitions. [2021-06-05 21:08:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:51,880 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:51,880 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:51,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-06-05 21:08:51,881 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:51,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:51,881 INFO L82 PathProgramCache]: Analyzing trace with hash 157183471, now seen corresponding path program 257 times [2021-06-05 21:08:51,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:51,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403780678] [2021-06-05 21:08:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:52,013 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 21:08:52,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:52,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403780678] [2021-06-05 21:08:52,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403780678] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:52,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:52,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:52,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409891961] [2021-06-05 21:08:52,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:52,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:52,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:52,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:52,014 INFO L87 Difference]: Start difference. First operand 13396 states and 71188 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:52,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:52,317 INFO L93 Difference]: Finished difference Result 32773 states and 163908 transitions. [2021-06-05 21:08:52,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:52,317 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:52,419 INFO L225 Difference]: With dead ends: 32773 [2021-06-05 21:08:52,419 INFO L226 Difference]: Without dead ends: 31879 [2021-06-05 21:08:52,419 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:53,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31879 states. [2021-06-05 21:08:53,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31879 to 13651. [2021-06-05 21:08:53,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13651 states, 13650 states have (on average 5.29018315018315) internal successors, (72211), 13650 states have internal predecessors, (72211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:53,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13651 states to 13651 states and 72211 transitions. [2021-06-05 21:08:53,698 INFO L78 Accepts]: Start accepts. Automaton has 13651 states and 72211 transitions. Word has length 33 [2021-06-05 21:08:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:53,698 INFO L482 AbstractCegarLoop]: Abstraction has 13651 states and 72211 transitions. [2021-06-05 21:08:53,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:53,698 INFO L276 IsEmpty]: Start isEmpty. Operand 13651 states and 72211 transitions. [2021-06-05 21:08:53,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:53,727 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:53,727 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:53,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-06-05 21:08:53,727 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:53,727 INFO L82 PathProgramCache]: Analyzing trace with hash -689613491, now seen corresponding path program 258 times [2021-06-05 21:08:53,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:53,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805000369] [2021-06-05 21:08:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:53,857 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 21:08:53,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:53,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805000369] [2021-06-05 21:08:53,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805000369] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:53,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:53,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:53,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779281682] [2021-06-05 21:08:53,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:53,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:53,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:53,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:53,858 INFO L87 Difference]: Start difference. First operand 13651 states and 72211 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:54,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:54,123 INFO L93 Difference]: Finished difference Result 32644 states and 163139 transitions. [2021-06-05 21:08:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:54,123 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:54,230 INFO L225 Difference]: With dead ends: 32644 [2021-06-05 21:08:54,230 INFO L226 Difference]: Without dead ends: 31498 [2021-06-05 21:08:54,231 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:54,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31498 states. [2021-06-05 21:08:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31498 to 13270. [2021-06-05 21:08:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 13269 states have (on average 5.321953425276961) internal successors, (70617), 13269 states have internal predecessors, (70617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:55,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 70617 transitions. [2021-06-05 21:08:55,464 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 70617 transitions. Word has length 33 [2021-06-05 21:08:55,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:55,464 INFO L482 AbstractCegarLoop]: Abstraction has 13270 states and 70617 transitions. [2021-06-05 21:08:55,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:55,464 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 70617 transitions. [2021-06-05 21:08:55,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:55,492 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:55,492 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:55,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-06-05 21:08:55,492 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:55,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:55,492 INFO L82 PathProgramCache]: Analyzing trace with hash -846114351, now seen corresponding path program 259 times [2021-06-05 21:08:55,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:55,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013332913] [2021-06-05 21:08:55,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:55,649 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 21:08:55,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:55,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013332913] [2021-06-05 21:08:55,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013332913] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:55,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:55,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:55,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028613676] [2021-06-05 21:08:55,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:55,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:55,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:55,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:55,650 INFO L87 Difference]: Start difference. First operand 13270 states and 70617 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:55,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:55,886 INFO L93 Difference]: Finished difference Result 32527 states and 162983 transitions. [2021-06-05 21:08:55,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:55,886 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:55,987 INFO L225 Difference]: With dead ends: 32527 [2021-06-05 21:08:55,987 INFO L226 Difference]: Without dead ends: 31776 [2021-06-05 21:08:55,987 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:56,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31776 states. [2021-06-05 21:08:57,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31776 to 13578. [2021-06-05 21:08:57,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13578 states, 13577 states have (on average 5.309346689253886) internal successors, (72085), 13577 states have internal predecessors, (72085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:57,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13578 states to 13578 states and 72085 transitions. [2021-06-05 21:08:57,204 INFO L78 Accepts]: Start accepts. Automaton has 13578 states and 72085 transitions. Word has length 33 [2021-06-05 21:08:57,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:57,204 INFO L482 AbstractCegarLoop]: Abstraction has 13578 states and 72085 transitions. [2021-06-05 21:08:57,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:57,204 INFO L276 IsEmpty]: Start isEmpty. Operand 13578 states and 72085 transitions. [2021-06-05 21:08:57,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:57,232 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:57,232 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:57,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-06-05 21:08:57,232 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:57,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1627817519, now seen corresponding path program 260 times [2021-06-05 21:08:57,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:57,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859582705] [2021-06-05 21:08:57,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:57,393 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 21:08:57,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:57,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859582705] [2021-06-05 21:08:57,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859582705] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:57,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:57,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:57,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009528027] [2021-06-05 21:08:57,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:57,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:57,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:57,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:57,394 INFO L87 Difference]: Start difference. First operand 13578 states and 72085 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:57,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:57,613 INFO L93 Difference]: Finished difference Result 32670 states and 163486 transitions. [2021-06-05 21:08:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:57,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:57,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:57,720 INFO L225 Difference]: With dead ends: 32670 [2021-06-05 21:08:57,720 INFO L226 Difference]: Without dead ends: 31592 [2021-06-05 21:08:57,721 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:08:58,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31592 states. [2021-06-05 21:08:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31592 to 13394. [2021-06-05 21:08:58,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13394 states, 13393 states have (on average 5.314791308892705) internal successors, (71181), 13393 states have internal predecessors, (71181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:58,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13394 states to 13394 states and 71181 transitions. [2021-06-05 21:08:58,943 INFO L78 Accepts]: Start accepts. Automaton has 13394 states and 71181 transitions. Word has length 33 [2021-06-05 21:08:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:08:58,944 INFO L482 AbstractCegarLoop]: Abstraction has 13394 states and 71181 transitions. [2021-06-05 21:08:58,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:58,944 INFO L276 IsEmpty]: Start isEmpty. Operand 13394 states and 71181 transitions. [2021-06-05 21:08:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:08:58,972 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:08:58,972 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:08:58,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-06-05 21:08:58,972 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:08:58,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:08:58,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1425791407, now seen corresponding path program 261 times [2021-06-05 21:08:58,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:08:58,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318178491] [2021-06-05 21:08:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:08:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:08:59,126 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 21:08:59,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:08:59,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318178491] [2021-06-05 21:08:59,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318178491] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:08:59,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:08:59,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:08:59,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947142806] [2021-06-05 21:08:59,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:08:59,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:08:59,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:08:59,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:08:59,127 INFO L87 Difference]: Start difference. First operand 13394 states and 71181 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:08:59,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:08:59,356 INFO L93 Difference]: Finished difference Result 32334 states and 161993 transitions. [2021-06-05 21:08:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:08:59,356 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:08:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:08:59,457 INFO L225 Difference]: With dead ends: 32334 [2021-06-05 21:08:59,457 INFO L226 Difference]: Without dead ends: 31583 [2021-06-05 21:08:59,457 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:00,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31583 states. [2021-06-05 21:09:00,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31583 to 13514. [2021-06-05 21:09:00,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13514 states, 13513 states have (on average 5.304003552134981) internal successors, (71673), 13513 states have internal predecessors, (71673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:00,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13514 states to 13514 states and 71673 transitions. [2021-06-05 21:09:00,719 INFO L78 Accepts]: Start accepts. Automaton has 13514 states and 71673 transitions. Word has length 33 [2021-06-05 21:09:00,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:00,719 INFO L482 AbstractCegarLoop]: Abstraction has 13514 states and 71673 transitions. [2021-06-05 21:09:00,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:00,719 INFO L276 IsEmpty]: Start isEmpty. Operand 13514 states and 71673 transitions. [2021-06-05 21:09:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:00,748 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:00,748 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:00,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-06-05 21:09:00,748 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:00,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:00,748 INFO L82 PathProgramCache]: Analyzing trace with hash -344473937, now seen corresponding path program 262 times [2021-06-05 21:09:00,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:00,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341916256] [2021-06-05 21:09:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:00,903 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 21:09:00,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:00,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341916256] [2021-06-05 21:09:00,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341916256] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:00,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:00,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:00,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326476841] [2021-06-05 21:09:00,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:00,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:00,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:00,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:00,904 INFO L87 Difference]: Start difference. First operand 13514 states and 71673 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:01,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:01,261 INFO L93 Difference]: Finished difference Result 32348 states and 161918 transitions. [2021-06-05 21:09:01,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:01,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:01,364 INFO L225 Difference]: With dead ends: 32348 [2021-06-05 21:09:01,364 INFO L226 Difference]: Without dead ends: 31463 [2021-06-05 21:09:01,364 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:02,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31463 states. [2021-06-05 21:09:02,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31463 to 13394. [2021-06-05 21:09:02,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13394 states, 13393 states have (on average 5.310311356678862) internal successors, (71121), 13393 states have internal predecessors, (71121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13394 states to 13394 states and 71121 transitions. [2021-06-05 21:09:02,457 INFO L78 Accepts]: Start accepts. Automaton has 13394 states and 71121 transitions. Word has length 33 [2021-06-05 21:09:02,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:02,457 INFO L482 AbstractCegarLoop]: Abstraction has 13394 states and 71121 transitions. [2021-06-05 21:09:02,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 13394 states and 71121 transitions. [2021-06-05 21:09:02,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:02,485 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:02,485 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:02,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-06-05 21:09:02,485 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:02,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:02,485 INFO L82 PathProgramCache]: Analyzing trace with hash -345488499, now seen corresponding path program 263 times [2021-06-05 21:09:02,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:02,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592889326] [2021-06-05 21:09:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:02,737 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 21:09:02,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:02,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592889326] [2021-06-05 21:09:02,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592889326] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:02,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:02,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:02,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919450569] [2021-06-05 21:09:02,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:02,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:02,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:02,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:02,738 INFO L87 Difference]: Start difference. First operand 13394 states and 71121 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:02,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:02,973 INFO L93 Difference]: Finished difference Result 32755 states and 163781 transitions. [2021-06-05 21:09:02,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:02,973 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:02,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:03,075 INFO L225 Difference]: With dead ends: 32755 [2021-06-05 21:09:03,075 INFO L226 Difference]: Without dead ends: 31861 [2021-06-05 21:09:03,076 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 258.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:03,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31861 states. [2021-06-05 21:09:04,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31861 to 13649. [2021-06-05 21:09:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13649 states, 13648 states have (on average 5.286049237983588) internal successors, (72144), 13648 states have internal predecessors, (72144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13649 states to 13649 states and 72144 transitions. [2021-06-05 21:09:04,323 INFO L78 Accepts]: Start accepts. Automaton has 13649 states and 72144 transitions. Word has length 33 [2021-06-05 21:09:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:04,324 INFO L482 AbstractCegarLoop]: Abstraction has 13649 states and 72144 transitions. [2021-06-05 21:09:04,324 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:04,324 INFO L276 IsEmpty]: Start isEmpty. Operand 13649 states and 72144 transitions. [2021-06-05 21:09:04,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:04,353 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:04,353 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:04,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-06-05 21:09:04,353 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:04,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:04,353 INFO L82 PathProgramCache]: Analyzing trace with hash -826390545, now seen corresponding path program 264 times [2021-06-05 21:09:04,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:04,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529585757] [2021-06-05 21:09:04,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:04,504 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 21:09:04,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:04,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529585757] [2021-06-05 21:09:04,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529585757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:04,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:04,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:04,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740231385] [2021-06-05 21:09:04,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:04,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:04,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:04,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:04,505 INFO L87 Difference]: Start difference. First operand 13649 states and 72144 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:04,742 INFO L93 Difference]: Finished difference Result 32626 states and 163012 transitions. [2021-06-05 21:09:04,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:04,742 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:04,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:04,848 INFO L225 Difference]: With dead ends: 32626 [2021-06-05 21:09:04,849 INFO L226 Difference]: Without dead ends: 31420 [2021-06-05 21:09:04,849 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:05,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31420 states. [2021-06-05 21:09:05,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31420 to 13208. [2021-06-05 21:09:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13208 states, 13207 states have (on average 5.327856439766791) internal successors, (70365), 13207 states have internal predecessors, (70365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:06,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70365 transitions. [2021-06-05 21:09:06,053 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70365 transitions. Word has length 33 [2021-06-05 21:09:06,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:06,053 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70365 transitions. [2021-06-05 21:09:06,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:06,054 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70365 transitions. [2021-06-05 21:09:06,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:06,082 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:06,082 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:06,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-06-05 21:09:06,082 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:06,082 INFO L82 PathProgramCache]: Analyzing trace with hash 2003397295, now seen corresponding path program 265 times [2021-06-05 21:09:06,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:06,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029522930] [2021-06-05 21:09:06,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:06,231 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 21:09:06,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:06,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029522930] [2021-06-05 21:09:06,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029522930] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:06,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:06,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:06,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496367677] [2021-06-05 21:09:06,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:06,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:06,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:06,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:06,232 INFO L87 Difference]: Start difference. First operand 13208 states and 70365 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:06,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:06,463 INFO L93 Difference]: Finished difference Result 32084 states and 161144 transitions. [2021-06-05 21:09:06,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:06,463 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:06,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:06,565 INFO L225 Difference]: With dead ends: 32084 [2021-06-05 21:09:06,565 INFO L226 Difference]: Without dead ends: 31325 [2021-06-05 21:09:06,565 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:07,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31325 states. [2021-06-05 21:09:07,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31325 to 13466. [2021-06-05 21:09:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13466 states, 13465 states have (on average 5.321054585963609) internal successors, (71648), 13465 states have internal predecessors, (71648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:07,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71648 transitions. [2021-06-05 21:09:07,782 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71648 transitions. Word has length 33 [2021-06-05 21:09:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:07,783 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71648 transitions. [2021-06-05 21:09:07,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:07,783 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71648 transitions. [2021-06-05 21:09:07,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:07,811 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:07,811 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:07,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-06-05 21:09:07,811 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:07,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:07,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1210507375, now seen corresponding path program 266 times [2021-06-05 21:09:07,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:07,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278584357] [2021-06-05 21:09:07,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:09:07,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:07,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278584357] [2021-06-05 21:09:07,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278584357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:07,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:07,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:07,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640208651] [2021-06-05 21:09:07,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:07,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:07,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:07,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:07,953 INFO L87 Difference]: Start difference. First operand 13466 states and 71648 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:08,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:08,200 INFO L93 Difference]: Finished difference Result 32076 states and 160996 transitions. [2021-06-05 21:09:08,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:08,200 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:08,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:08,300 INFO L225 Difference]: With dead ends: 32076 [2021-06-05 21:09:08,301 INFO L226 Difference]: Without dead ends: 31205 [2021-06-05 21:09:08,301 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:09,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31205 states. [2021-06-05 21:09:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31205 to 13346. [2021-06-05 21:09:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.3275384038965905) internal successors, (71096), 13345 states have internal predecessors, (71096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:09,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 71096 transitions. [2021-06-05 21:09:09,505 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 71096 transitions. Word has length 33 [2021-06-05 21:09:09,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:09,505 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 71096 transitions. [2021-06-05 21:09:09,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:09,505 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 71096 transitions. [2021-06-05 21:09:09,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:09,533 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:09,533 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:09,533 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-06-05 21:09:09,533 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:09,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:09,534 INFO L82 PathProgramCache]: Analyzing trace with hash -572505425, now seen corresponding path program 267 times [2021-06-05 21:09:09,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:09,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706991406] [2021-06-05 21:09:09,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:09,691 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 21:09:09,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:09,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706991406] [2021-06-05 21:09:09,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706991406] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:09,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:09,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:09,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644806857] [2021-06-05 21:09:09,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:09,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:09,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:09,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:09,692 INFO L87 Difference]: Start difference. First operand 13346 states and 71096 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:09,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:09,952 INFO L93 Difference]: Finished difference Result 32295 states and 162043 transitions. [2021-06-05 21:09:09,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:09,952 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:09,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:10,057 INFO L225 Difference]: With dead ends: 32295 [2021-06-05 21:09:10,057 INFO L226 Difference]: Without dead ends: 31536 [2021-06-05 21:09:10,057 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:10,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31536 states. [2021-06-05 21:09:11,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31536 to 13534. [2021-06-05 21:09:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13534 states, 13533 states have (on average 5.314416611246583) internal successors, (71920), 13533 states have internal predecessors, (71920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:11,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13534 states to 13534 states and 71920 transitions. [2021-06-05 21:09:11,284 INFO L78 Accepts]: Start accepts. Automaton has 13534 states and 71920 transitions. Word has length 33 [2021-06-05 21:09:11,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:11,284 INFO L482 AbstractCegarLoop]: Abstraction has 13534 states and 71920 transitions. [2021-06-05 21:09:11,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:11,284 INFO L276 IsEmpty]: Start isEmpty. Operand 13534 states and 71920 transitions. [2021-06-05 21:09:11,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:11,312 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:11,312 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:11,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-06-05 21:09:11,312 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:11,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:11,312 INFO L82 PathProgramCache]: Analyzing trace with hash 197266095, now seen corresponding path program 268 times [2021-06-05 21:09:11,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:11,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565079237] [2021-06-05 21:09:11,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:09:11,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:11,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565079237] [2021-06-05 21:09:11,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565079237] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:11,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:11,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:11,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258011867] [2021-06-05 21:09:11,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:11,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:11,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:11,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:11,467 INFO L87 Difference]: Start difference. First operand 13534 states and 71920 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:11,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:11,797 INFO L93 Difference]: Finished difference Result 32430 states and 162514 transitions. [2021-06-05 21:09:11,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:11,798 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:11,895 INFO L225 Difference]: With dead ends: 32430 [2021-06-05 21:09:11,895 INFO L226 Difference]: Without dead ends: 31348 [2021-06-05 21:09:11,895 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:12,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31348 states. [2021-06-05 21:09:12,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31348 to 13346. [2021-06-05 21:09:12,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.320644436118396) internal successors, (71004), 13345 states have internal predecessors, (71004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:12,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 71004 transitions. [2021-06-05 21:09:12,970 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 71004 transitions. Word has length 33 [2021-06-05 21:09:12,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:12,971 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 71004 transitions. [2021-06-05 21:09:12,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:12,971 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 71004 transitions. [2021-06-05 21:09:12,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:12,998 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:12,998 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:12,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-06-05 21:09:12,998 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:12,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:12,998 INFO L82 PathProgramCache]: Analyzing trace with hash -184500463, now seen corresponding path program 269 times [2021-06-05 21:09:12,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:12,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42733367] [2021-06-05 21:09:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:13,180 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-06-05 21:09:13,267 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 21:09:13,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:13,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42733367] [2021-06-05 21:09:13,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42733367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:13,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:13,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:13,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270877322] [2021-06-05 21:09:13,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:13,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:13,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:13,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:13,268 INFO L87 Difference]: Start difference. First operand 13346 states and 71004 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:13,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:13,488 INFO L93 Difference]: Finished difference Result 32275 states and 161879 transitions. [2021-06-05 21:09:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:13,489 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:13,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:13,588 INFO L225 Difference]: With dead ends: 32275 [2021-06-05 21:09:13,588 INFO L226 Difference]: Without dead ends: 31524 [2021-06-05 21:09:13,589 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 293.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:14,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31524 states. [2021-06-05 21:09:14,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31524 to 13530. [2021-06-05 21:09:14,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 13529 states have (on average 5.308300687412226) internal successors, (71816), 13529 states have internal predecessors, (71816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:14,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 71816 transitions. [2021-06-05 21:09:14,816 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 71816 transitions. Word has length 33 [2021-06-05 21:09:14,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:14,816 INFO L482 AbstractCegarLoop]: Abstraction has 13530 states and 71816 transitions. [2021-06-05 21:09:14,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 71816 transitions. [2021-06-05 21:09:14,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:14,844 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:14,844 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:14,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-06-05 21:09:14,844 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:14,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:14,845 INFO L82 PathProgramCache]: Analyzing trace with hash -2005535889, now seen corresponding path program 270 times [2021-06-05 21:09:14,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:14,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475969207] [2021-06-05 21:09:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:15,002 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 21:09:15,002 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:15,002 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475969207] [2021-06-05 21:09:15,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475969207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:15,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:15,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:15,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759139775] [2021-06-05 21:09:15,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:15,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:15,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:15,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:15,003 INFO L87 Difference]: Start difference. First operand 13530 states and 71816 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:15,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:15,223 INFO L93 Difference]: Finished difference Result 32418 states and 162382 transitions. [2021-06-05 21:09:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:15,223 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:15,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:15,323 INFO L225 Difference]: With dead ends: 32418 [2021-06-05 21:09:15,324 INFO L226 Difference]: Without dead ends: 31248 [2021-06-05 21:09:15,324 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31248 states. [2021-06-05 21:09:16,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31248 to 13254. [2021-06-05 21:09:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13254 states, 13253 states have (on average 5.32694484267713) internal successors, (70598), 13253 states have internal predecessors, (70598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:16,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 70598 transitions. [2021-06-05 21:09:16,566 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 70598 transitions. Word has length 33 [2021-06-05 21:09:16,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:16,567 INFO L482 AbstractCegarLoop]: Abstraction has 13254 states and 70598 transitions. [2021-06-05 21:09:16,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:16,567 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 70598 transitions. [2021-06-05 21:09:16,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:16,597 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:16,597 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:16,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-06-05 21:09:16,597 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:16,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:16,598 INFO L82 PathProgramCache]: Analyzing trace with hash -444238259, now seen corresponding path program 271 times [2021-06-05 21:09:16,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:16,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795641988] [2021-06-05 21:09:16,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:16,750 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 21:09:16,751 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:16,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795641988] [2021-06-05 21:09:16,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795641988] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:16,751 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:16,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:16,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12206920] [2021-06-05 21:09:16,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:16,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:16,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:16,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:16,751 INFO L87 Difference]: Start difference. First operand 13254 states and 70598 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:17,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:17,011 INFO L93 Difference]: Finished difference Result 31793 states and 159699 transitions. [2021-06-05 21:09:17,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:17,012 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:17,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:17,115 INFO L225 Difference]: With dead ends: 31793 [2021-06-05 21:09:17,115 INFO L226 Difference]: Without dead ends: 31034 [2021-06-05 21:09:17,115 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:18,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31034 states. [2021-06-05 21:09:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31034 to 13434. [2021-06-05 21:09:18,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13434 states, 13433 states have (on average 5.3172039008412115) internal successors, (71426), 13433 states have internal predecessors, (71426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13434 states to 13434 states and 71426 transitions. [2021-06-05 21:09:18,370 INFO L78 Accepts]: Start accepts. Automaton has 13434 states and 71426 transitions. Word has length 33 [2021-06-05 21:09:18,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:18,370 INFO L482 AbstractCegarLoop]: Abstraction has 13434 states and 71426 transitions. [2021-06-05 21:09:18,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 13434 states and 71426 transitions. [2021-06-05 21:09:18,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:18,398 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:18,399 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:18,399 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-06-05 21:09:18,399 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:18,399 INFO L82 PathProgramCache]: Analyzing trace with hash 636824367, now seen corresponding path program 272 times [2021-06-05 21:09:18,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:18,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270126894] [2021-06-05 21:09:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:09:18,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:18,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270126894] [2021-06-05 21:09:18,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270126894] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:18,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:18,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:18,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953274734] [2021-06-05 21:09:18,528 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:18,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:18,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:18,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:18,529 INFO L87 Difference]: Start difference. First operand 13434 states and 71426 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:18,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:18,788 INFO L93 Difference]: Finished difference Result 31785 states and 159551 transitions. [2021-06-05 21:09:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:18,788 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:18,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:18,889 INFO L225 Difference]: With dead ends: 31785 [2021-06-05 21:09:18,889 INFO L226 Difference]: Without dead ends: 30914 [2021-06-05 21:09:18,890 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30914 states. [2021-06-05 21:09:20,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30914 to 13314. [2021-06-05 21:09:20,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13314 states, 13313 states have (on average 5.323668594606775) internal successors, (70874), 13313 states have internal predecessors, (70874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:20,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13314 states to 13314 states and 70874 transitions. [2021-06-05 21:09:20,106 INFO L78 Accepts]: Start accepts. Automaton has 13314 states and 70874 transitions. Word has length 33 [2021-06-05 21:09:20,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:20,106 INFO L482 AbstractCegarLoop]: Abstraction has 13314 states and 70874 transitions. [2021-06-05 21:09:20,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:20,107 INFO L276 IsEmpty]: Start isEmpty. Operand 13314 states and 70874 transitions. [2021-06-05 21:09:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:20,135 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:20,135 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:20,135 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-06-05 21:09:20,136 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:20,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:20,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1115684207, now seen corresponding path program 273 times [2021-06-05 21:09:20,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:20,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105197197] [2021-06-05 21:09:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:09:20,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:20,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105197197] [2021-06-05 21:09:20,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105197197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:20,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:20,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:20,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138158872] [2021-06-05 21:09:20,265 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:20,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:20,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:20,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:20,265 INFO L87 Difference]: Start difference. First operand 13314 states and 70874 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:20,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:20,499 INFO L93 Difference]: Finished difference Result 31809 states and 159695 transitions. [2021-06-05 21:09:20,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:20,499 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:20,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:20,602 INFO L225 Difference]: With dead ends: 31809 [2021-06-05 21:09:20,603 INFO L226 Difference]: Without dead ends: 31050 [2021-06-05 21:09:20,603 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:21,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31050 states. [2021-06-05 21:09:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31050 to 13438. [2021-06-05 21:09:21,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13438 states, 13437 states have (on average 5.312048820421225) internal successors, (71378), 13437 states have internal predecessors, (71378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:21,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13438 states to 13438 states and 71378 transitions. [2021-06-05 21:09:21,811 INFO L78 Accepts]: Start accepts. Automaton has 13438 states and 71378 transitions. Word has length 33 [2021-06-05 21:09:21,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:21,811 INFO L482 AbstractCegarLoop]: Abstraction has 13438 states and 71378 transitions. [2021-06-05 21:09:21,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:21,811 INFO L276 IsEmpty]: Start isEmpty. Operand 13438 states and 71378 transitions. [2021-06-05 21:09:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:21,839 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:21,839 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:21,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-06-05 21:09:21,839 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:21,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:21,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1066116463, now seen corresponding path program 274 times [2021-06-05 21:09:21,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:21,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390041138] [2021-06-05 21:09:21,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:21,983 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 21:09:21,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:21,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390041138] [2021-06-05 21:09:21,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390041138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:21,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:21,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:21,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324564974] [2021-06-05 21:09:21,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:21,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:21,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:21,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:21,984 INFO L87 Difference]: Start difference. First operand 13438 states and 71378 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:22,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:22,379 INFO L93 Difference]: Finished difference Result 31813 states and 159583 transitions. [2021-06-05 21:09:22,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:22,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:22,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:22,480 INFO L225 Difference]: With dead ends: 31813 [2021-06-05 21:09:22,480 INFO L226 Difference]: Without dead ends: 30926 [2021-06-05 21:09:22,481 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:23,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30926 states. [2021-06-05 21:09:23,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30926 to 13314. [2021-06-05 21:09:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13314 states, 13313 states have (on average 5.319161721625479) internal successors, (70814), 13313 states have internal predecessors, (70814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13314 states to 13314 states and 70814 transitions. [2021-06-05 21:09:23,560 INFO L78 Accepts]: Start accepts. Automaton has 13314 states and 70814 transitions. Word has length 33 [2021-06-05 21:09:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:23,560 INFO L482 AbstractCegarLoop]: Abstraction has 13314 states and 70814 transitions. [2021-06-05 21:09:23,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:23,560 INFO L276 IsEmpty]: Start isEmpty. Operand 13314 states and 70814 transitions. [2021-06-05 21:09:23,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:23,588 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:23,588 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:23,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-06-05 21:09:23,588 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:23,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:23,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1503689169, now seen corresponding path program 275 times [2021-06-05 21:09:23,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:23,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980453197] [2021-06-05 21:09:23,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:23,797 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 21:09:23,822 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 21:09:23,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:23,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980453197] [2021-06-05 21:09:23,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980453197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:23,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:23,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:23,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265893956] [2021-06-05 21:09:23,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:23,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:23,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:23,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:23,823 INFO L87 Difference]: Start difference. First operand 13314 states and 70814 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:24,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:24,048 INFO L93 Difference]: Finished difference Result 31789 states and 159563 transitions. [2021-06-05 21:09:24,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:24,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:24,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:24,147 INFO L225 Difference]: With dead ends: 31789 [2021-06-05 21:09:24,147 INFO L226 Difference]: Without dead ends: 31038 [2021-06-05 21:09:24,147 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 259.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:24,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31038 states. [2021-06-05 21:09:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31038 to 13434. [2021-06-05 21:09:25,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13434 states, 13433 states have (on average 5.30827067669173) internal successors, (71306), 13433 states have internal predecessors, (71306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13434 states to 13434 states and 71306 transitions. [2021-06-05 21:09:25,405 INFO L78 Accepts]: Start accepts. Automaton has 13434 states and 71306 transitions. Word has length 33 [2021-06-05 21:09:25,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:25,405 INFO L482 AbstractCegarLoop]: Abstraction has 13434 states and 71306 transitions. [2021-06-05 21:09:25,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 13434 states and 71306 transitions. [2021-06-05 21:09:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:25,434 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:25,434 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:25,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-06-05 21:09:25,434 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:25,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:25,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1439055663, now seen corresponding path program 276 times [2021-06-05 21:09:25,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:25,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733777542] [2021-06-05 21:09:25,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:25,564 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 21:09:25,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:25,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733777542] [2021-06-05 21:09:25,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733777542] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:25,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:25,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:25,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336865550] [2021-06-05 21:09:25,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:25,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:25,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:25,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:25,565 INFO L87 Difference]: Start difference. First operand 13434 states and 71306 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:25,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:25,831 INFO L93 Difference]: Finished difference Result 31801 states and 159483 transitions. [2021-06-05 21:09:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:25,831 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:25,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:25,931 INFO L225 Difference]: With dead ends: 31801 [2021-06-05 21:09:25,931 INFO L226 Difference]: Without dead ends: 30858 [2021-06-05 21:09:25,931 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:26,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30858 states. [2021-06-05 21:09:27,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30858 to 13254. [2021-06-05 21:09:27,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13254 states, 13253 states have (on average 5.32468120425564) internal successors, (70568), 13253 states have internal predecessors, (70568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:27,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 70568 transitions. [2021-06-05 21:09:27,151 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 70568 transitions. Word has length 33 [2021-06-05 21:09:27,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:27,151 INFO L482 AbstractCegarLoop]: Abstraction has 13254 states and 70568 transitions. [2021-06-05 21:09:27,152 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 70568 transitions. [2021-06-05 21:09:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:27,180 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:27,180 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:27,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-06-05 21:09:27,180 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:27,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:27,180 INFO L82 PathProgramCache]: Analyzing trace with hash 980350319, now seen corresponding path program 277 times [2021-06-05 21:09:27,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:27,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619957970] [2021-06-05 21:09:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:27,326 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 21:09:27,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:27,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619957970] [2021-06-05 21:09:27,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619957970] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:27,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:27,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:27,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622946690] [2021-06-05 21:09:27,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:27,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:27,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:27,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:27,327 INFO L87 Difference]: Start difference. First operand 13254 states and 70568 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:27,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:27,574 INFO L93 Difference]: Finished difference Result 32319 states and 162115 transitions. [2021-06-05 21:09:27,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:27,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:27,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:27,679 INFO L225 Difference]: With dead ends: 32319 [2021-06-05 21:09:27,679 INFO L226 Difference]: Without dead ends: 31560 [2021-06-05 21:09:27,679 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:28,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31560 states. [2021-06-05 21:09:28,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31560 to 13536. [2021-06-05 21:09:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13536 states, 13535 states have (on average 5.313114148503879) internal successors, (71913), 13535 states have internal predecessors, (71913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13536 states to 13536 states and 71913 transitions. [2021-06-05 21:09:28,955 INFO L78 Accepts]: Start accepts. Automaton has 13536 states and 71913 transitions. Word has length 33 [2021-06-05 21:09:28,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:28,955 INFO L482 AbstractCegarLoop]: Abstraction has 13536 states and 71913 transitions. [2021-06-05 21:09:28,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:28,955 INFO L276 IsEmpty]: Start isEmpty. Operand 13536 states and 71913 transitions. [2021-06-05 21:09:28,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:28,984 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:28,984 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:28,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-06-05 21:09:28,984 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:28,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:28,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1750121839, now seen corresponding path program 278 times [2021-06-05 21:09:28,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:28,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217656612] [2021-06-05 21:09:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:29,130 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 21:09:29,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:29,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217656612] [2021-06-05 21:09:29,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217656612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:29,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:29,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:29,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348270163] [2021-06-05 21:09:29,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:29,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:29,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:29,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:29,131 INFO L87 Difference]: Start difference. First operand 13536 states and 71913 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:29,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:29,354 INFO L93 Difference]: Finished difference Result 32454 states and 162586 transitions. [2021-06-05 21:09:29,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:29,354 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:29,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:29,458 INFO L225 Difference]: With dead ends: 32454 [2021-06-05 21:09:29,458 INFO L226 Difference]: Without dead ends: 31372 [2021-06-05 21:09:29,458 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:30,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31372 states. [2021-06-05 21:09:30,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31372 to 13348. [2021-06-05 21:09:30,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13348 states, 13347 states have (on average 5.319172847830973) internal successors, (70995), 13347 states have internal predecessors, (70995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:30,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 70995 transitions. [2021-06-05 21:09:30,704 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 70995 transitions. Word has length 33 [2021-06-05 21:09:30,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:30,704 INFO L482 AbstractCegarLoop]: Abstraction has 13348 states and 70995 transitions. [2021-06-05 21:09:30,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 70995 transitions. [2021-06-05 21:09:30,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:30,732 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:30,732 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:30,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-06-05 21:09:30,732 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:30,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:30,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1052662323, now seen corresponding path program 279 times [2021-06-05 21:09:30,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:30,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433766840] [2021-06-05 21:09:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:30,863 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 21:09:30,863 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:30,863 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433766840] [2021-06-05 21:09:30,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433766840] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:30,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:30,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:30,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561339405] [2021-06-05 21:09:30,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:30,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:30,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:30,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:30,864 INFO L87 Difference]: Start difference. First operand 13348 states and 70995 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:31,092 INFO L93 Difference]: Finished difference Result 32124 states and 161118 transitions. [2021-06-05 21:09:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:31,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:31,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:31,192 INFO L225 Difference]: With dead ends: 32124 [2021-06-05 21:09:31,192 INFO L226 Difference]: Without dead ends: 31365 [2021-06-05 21:09:31,193 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:32,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31365 states. [2021-06-05 21:09:32,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31365 to 13472. [2021-06-05 21:09:32,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13472 states, 13471 states have (on average 5.307623784425804) internal successors, (71499), 13471 states have internal predecessors, (71499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:32,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13472 states to 13472 states and 71499 transitions. [2021-06-05 21:09:32,406 INFO L78 Accepts]: Start accepts. Automaton has 13472 states and 71499 transitions. Word has length 33 [2021-06-05 21:09:32,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:32,407 INFO L482 AbstractCegarLoop]: Abstraction has 13472 states and 71499 transitions. [2021-06-05 21:09:32,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:32,407 INFO L276 IsEmpty]: Start isEmpty. Operand 13472 states and 71499 transitions. [2021-06-05 21:09:32,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:32,435 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:32,435 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:32,435 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-06-05 21:09:32,435 INFO L430 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:32,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:32,435 INFO L82 PathProgramCache]: Analyzing trace with hash -475234961, now seen corresponding path program 280 times [2021-06-05 21:09:32,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:32,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327188452] [2021-06-05 21:09:32,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:32,565 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 21:09:32,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:32,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327188452] [2021-06-05 21:09:32,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327188452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:32,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:32,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:32,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355308674] [2021-06-05 21:09:32,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:32,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:32,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:32,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:32,566 INFO L87 Difference]: Start difference. First operand 13472 states and 71499 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:32,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:32,952 INFO L93 Difference]: Finished difference Result 32128 states and 161006 transitions. [2021-06-05 21:09:32,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:32,952 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:32,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:33,055 INFO L225 Difference]: With dead ends: 32128 [2021-06-05 21:09:33,055 INFO L226 Difference]: Without dead ends: 31241 [2021-06-05 21:09:33,055 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:33,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31241 states. [2021-06-05 21:09:34,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31241 to 13348. [2021-06-05 21:09:34,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13348 states, 13347 states have (on average 5.314527609200569) internal successors, (70933), 13347 states have internal predecessors, (70933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:34,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 70933 transitions. [2021-06-05 21:09:34,156 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 70933 transitions. Word has length 33 [2021-06-05 21:09:34,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:34,156 INFO L482 AbstractCegarLoop]: Abstraction has 13348 states and 70933 transitions. [2021-06-05 21:09:34,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:34,157 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 70933 transitions. [2021-06-05 21:09:34,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:34,185 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:34,185 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:34,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-06-05 21:09:34,185 INFO L430 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:34,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:34,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1360160111, now seen corresponding path program 281 times [2021-06-05 21:09:34,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:34,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639543690] [2021-06-05 21:09:34,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:34,318 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 21:09:34,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:34,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639543690] [2021-06-05 21:09:34,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639543690] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:34,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:34,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:34,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530936680] [2021-06-05 21:09:34,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:34,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:34,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:34,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:34,318 INFO L87 Difference]: Start difference. First operand 13348 states and 70933 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:34,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:34,684 INFO L93 Difference]: Finished difference Result 32460 states and 162573 transitions. [2021-06-05 21:09:34,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:34,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:34,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:34,787 INFO L225 Difference]: With dead ends: 32460 [2021-06-05 21:09:34,787 INFO L226 Difference]: Without dead ends: 31566 [2021-06-05 21:09:34,788 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:35,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31566 states. [2021-06-05 21:09:35,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31566 to 13538. [2021-06-05 21:09:35,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13538 states, 13537 states have (on average 5.296446775504173) internal successors, (71698), 13537 states have internal predecessors, (71698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:36,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13538 states to 13538 states and 71698 transitions. [2021-06-05 21:09:36,077 INFO L78 Accepts]: Start accepts. Automaton has 13538 states and 71698 transitions. Word has length 33 [2021-06-05 21:09:36,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:36,077 INFO L482 AbstractCegarLoop]: Abstraction has 13538 states and 71698 transitions. [2021-06-05 21:09:36,077 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:36,077 INFO L276 IsEmpty]: Start isEmpty. Operand 13538 states and 71698 transitions. [2021-06-05 21:09:36,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:36,106 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:36,106 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:36,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-06-05 21:09:36,106 INFO L430 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:36,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:36,106 INFO L82 PathProgramCache]: Analyzing trace with hash -755919539, now seen corresponding path program 282 times [2021-06-05 21:09:36,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:36,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268995261] [2021-06-05 21:09:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:36,238 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 21:09:36,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:36,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268995261] [2021-06-05 21:09:36,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268995261] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:36,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:36,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:36,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411852752] [2021-06-05 21:09:36,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:36,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:36,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:36,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:36,239 INFO L87 Difference]: Start difference. First operand 13538 states and 71698 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:36,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:36,472 INFO L93 Difference]: Finished difference Result 32329 states and 161800 transitions. [2021-06-05 21:09:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:36,472 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:36,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:36,578 INFO L225 Difference]: With dead ends: 32329 [2021-06-05 21:09:36,578 INFO L226 Difference]: Without dead ends: 31282 [2021-06-05 21:09:36,578 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:37,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31282 states. [2021-06-05 21:09:37,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31282 to 13254. [2021-06-05 21:09:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13254 states, 13253 states have (on average 5.321210292009356) internal successors, (70522), 13253 states have internal predecessors, (70522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:37,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 70522 transitions. [2021-06-05 21:09:37,848 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 70522 transitions. Word has length 33 [2021-06-05 21:09:37,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:37,848 INFO L482 AbstractCegarLoop]: Abstraction has 13254 states and 70522 transitions. [2021-06-05 21:09:37,848 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:37,849 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 70522 transitions. [2021-06-05 21:09:37,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:37,877 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:37,877 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:37,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-06-05 21:09:37,877 INFO L430 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:37,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:37,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1059871057, now seen corresponding path program 283 times [2021-06-05 21:09:37,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:37,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047442186] [2021-06-05 21:09:37,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:09:38,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:38,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047442186] [2021-06-05 21:09:38,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047442186] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:38,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:38,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:38,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822170859] [2021-06-05 21:09:38,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:38,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:38,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:38,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:38,029 INFO L87 Difference]: Start difference. First operand 13254 states and 70522 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:38,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:38,265 INFO L93 Difference]: Finished difference Result 32281 states and 161928 transitions. [2021-06-05 21:09:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:38,266 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:38,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:38,370 INFO L225 Difference]: With dead ends: 32281 [2021-06-05 21:09:38,371 INFO L226 Difference]: Without dead ends: 31530 [2021-06-05 21:09:38,371 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:39,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31530 states. [2021-06-05 21:09:39,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31530 to 13530. [2021-06-05 21:09:39,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 13529 states have (on average 5.3105181462044495) internal successors, (71846), 13529 states have internal predecessors, (71846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:39,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 71846 transitions. [2021-06-05 21:09:39,608 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 71846 transitions. Word has length 33 [2021-06-05 21:09:39,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:39,608 INFO L482 AbstractCegarLoop]: Abstraction has 13530 states and 71846 transitions. [2021-06-05 21:09:39,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:39,609 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 71846 transitions. [2021-06-05 21:09:39,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:39,638 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:39,638 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:39,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-06-05 21:09:39,638 INFO L430 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:39,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:39,638 INFO L82 PathProgramCache]: Analyzing trace with hash -761164369, now seen corresponding path program 284 times [2021-06-05 21:09:39,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:39,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650455904] [2021-06-05 21:09:39,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:09:39,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:39,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650455904] [2021-06-05 21:09:39,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650455904] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:39,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:39,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:39,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506239495] [2021-06-05 21:09:39,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:39,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:39,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:39,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:39,793 INFO L87 Difference]: Start difference. First operand 13530 states and 71846 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:40,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:40,019 INFO L93 Difference]: Finished difference Result 32424 states and 162431 transitions. [2021-06-05 21:09:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:40,019 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:40,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:40,122 INFO L225 Difference]: With dead ends: 32424 [2021-06-05 21:09:40,123 INFO L226 Difference]: Without dead ends: 31346 [2021-06-05 21:09:40,123 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:41,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31346 states. [2021-06-05 21:09:41,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31346 to 13346. [2021-06-05 21:09:41,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.315998501311353) internal successors, (70942), 13345 states have internal predecessors, (70942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:41,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70942 transitions. [2021-06-05 21:09:41,336 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70942 transitions. Word has length 33 [2021-06-05 21:09:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:41,336 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70942 transitions. [2021-06-05 21:09:41,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:41,337 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70942 transitions. [2021-06-05 21:09:41,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:41,365 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:41,365 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:41,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-06-05 21:09:41,365 INFO L430 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:41,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:41,365 INFO L82 PathProgramCache]: Analyzing trace with hash -973141585, now seen corresponding path program 285 times [2021-06-05 21:09:41,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:41,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433427447] [2021-06-05 21:09:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:41,498 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 21:09:41,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:41,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433427447] [2021-06-05 21:09:41,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433427447] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:41,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:41,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:41,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86168968] [2021-06-05 21:09:41,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:41,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:41,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:41,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:41,499 INFO L87 Difference]: Start difference. First operand 13346 states and 70942 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:41,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:41,734 INFO L93 Difference]: Finished difference Result 32086 states and 160933 transitions. [2021-06-05 21:09:41,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:41,735 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:41,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:41,835 INFO L225 Difference]: With dead ends: 32086 [2021-06-05 21:09:41,835 INFO L226 Difference]: Without dead ends: 31335 [2021-06-05 21:09:41,835 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:42,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31335 states. [2021-06-05 21:09:42,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31335 to 13466. [2021-06-05 21:09:43,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13466 states, 13465 states have (on average 5.305161529892313) internal successors, (71434), 13465 states have internal predecessors, (71434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71434 transitions. [2021-06-05 21:09:43,051 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71434 transitions. Word has length 33 [2021-06-05 21:09:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:43,052 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71434 transitions. [2021-06-05 21:09:43,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:43,052 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71434 transitions. [2021-06-05 21:09:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:43,080 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:43,080 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:43,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-06-05 21:09:43,080 INFO L430 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:43,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:43,080 INFO L82 PathProgramCache]: Analyzing trace with hash -410779985, now seen corresponding path program 286 times [2021-06-05 21:09:43,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:43,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061021205] [2021-06-05 21:09:43,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:43,209 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 21:09:43,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:43,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061021205] [2021-06-05 21:09:43,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061021205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:43,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:43,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:43,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031431632] [2021-06-05 21:09:43,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:43,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:43,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:43,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:43,210 INFO L87 Difference]: Start difference. First operand 13466 states and 71434 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:43,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:43,598 INFO L93 Difference]: Finished difference Result 32098 states and 160853 transitions. [2021-06-05 21:09:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:43,598 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:43,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:43,696 INFO L225 Difference]: With dead ends: 32098 [2021-06-05 21:09:43,697 INFO L226 Difference]: Without dead ends: 31215 [2021-06-05 21:09:43,697 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:44,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31215 states. [2021-06-05 21:09:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31215 to 13346. [2021-06-05 21:09:44,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.311502435369052) internal successors, (70882), 13345 states have internal predecessors, (70882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:44,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70882 transitions. [2021-06-05 21:09:44,789 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70882 transitions. Word has length 33 [2021-06-05 21:09:44,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:44,789 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70882 transitions. [2021-06-05 21:09:44,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:44,789 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70882 transitions. [2021-06-05 21:09:44,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:44,817 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:44,817 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:44,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-06-05 21:09:44,817 INFO L430 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:44,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:44,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1550545805, now seen corresponding path program 287 times [2021-06-05 21:09:44,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:44,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649727175] [2021-06-05 21:09:44,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:09:44,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:44,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649727175] [2021-06-05 21:09:44,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649727175] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:44,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:44,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:44,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106045407] [2021-06-05 21:09:44,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:44,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:44,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:44,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:44,950 INFO L87 Difference]: Start difference. First operand 13346 states and 70882 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:45,265 INFO L93 Difference]: Finished difference Result 32442 states and 162462 transitions. [2021-06-05 21:09:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:45,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:45,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:45,368 INFO L225 Difference]: With dead ends: 32442 [2021-06-05 21:09:45,368 INFO L226 Difference]: Without dead ends: 31548 [2021-06-05 21:09:45,368 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:46,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31548 states. [2021-06-05 21:09:46,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31548 to 13536. [2021-06-05 21:09:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13536 states, 13535 states have (on average 5.293461396379756) internal successors, (71647), 13535 states have internal predecessors, (71647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:46,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13536 states to 13536 states and 71647 transitions. [2021-06-05 21:09:46,671 INFO L78 Accepts]: Start accepts. Automaton has 13536 states and 71647 transitions. Word has length 33 [2021-06-05 21:09:46,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:46,671 INFO L482 AbstractCegarLoop]: Abstraction has 13536 states and 71647 transitions. [2021-06-05 21:09:46,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 13536 states and 71647 transitions. [2021-06-05 21:09:46,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:46,700 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:46,700 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:46,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-06-05 21:09:46,700 INFO L430 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:46,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:46,700 INFO L82 PathProgramCache]: Analyzing trace with hash 376586095, now seen corresponding path program 288 times [2021-06-05 21:09:46,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:46,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971178512] [2021-06-05 21:09:46,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:46,832 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 21:09:46,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:46,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971178512] [2021-06-05 21:09:46,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971178512] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:46,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:46,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:46,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452970567] [2021-06-05 21:09:46,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:46,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:46,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:46,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:46,833 INFO L87 Difference]: Start difference. First operand 13536 states and 71647 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:47,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:47,067 INFO L93 Difference]: Finished difference Result 32311 states and 161689 transitions. [2021-06-05 21:09:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:47,067 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:47,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:47,171 INFO L225 Difference]: With dead ends: 32311 [2021-06-05 21:09:47,171 INFO L226 Difference]: Without dead ends: 31220 [2021-06-05 21:09:47,171 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:47,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31220 states. [2021-06-05 21:09:48,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31220 to 13208. [2021-06-05 21:09:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13208 states, 13207 states have (on average 5.326114939047475) internal successors, (70342), 13207 states have internal predecessors, (70342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:48,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70342 transitions. [2021-06-05 21:09:48,423 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70342 transitions. Word has length 33 [2021-06-05 21:09:48,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:48,423 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70342 transitions. [2021-06-05 21:09:48,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:48,423 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70342 transitions. [2021-06-05 21:09:48,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:48,452 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:48,452 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:48,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-06-05 21:09:48,452 INFO L430 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:48,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:48,452 INFO L82 PathProgramCache]: Analyzing trace with hash 18506957, now seen corresponding path program 289 times [2021-06-05 21:09:48,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:48,452 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389237390] [2021-06-05 21:09:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:48,591 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 21:09:48,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:48,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389237390] [2021-06-05 21:09:48,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389237390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:48,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:48,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:48,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266181628] [2021-06-05 21:09:48,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:48,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:48,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:48,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:48,592 INFO L87 Difference]: Start difference. First operand 13208 states and 70342 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:48,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:48,842 INFO L93 Difference]: Finished difference Result 31362 states and 157565 transitions. [2021-06-05 21:09:48,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:48,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:48,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:48,947 INFO L225 Difference]: With dead ends: 31362 [2021-06-05 21:09:48,947 INFO L226 Difference]: Without dead ends: 30603 [2021-06-05 21:09:48,947 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:49,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30603 states. [2021-06-05 21:09:50,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30603 to 13418. [2021-06-05 21:09:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.3181038980398005) internal successors, (71353), 13417 states have internal predecessors, (71353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71353 transitions. [2021-06-05 21:09:50,177 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71353 transitions. Word has length 33 [2021-06-05 21:09:50,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:50,177 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71353 transitions. [2021-06-05 21:09:50,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:50,177 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71353 transitions. [2021-06-05 21:09:50,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:50,205 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:50,205 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:50,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-06-05 21:09:50,205 INFO L430 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:50,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:50,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1099569583, now seen corresponding path program 290 times [2021-06-05 21:09:50,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:50,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060996248] [2021-06-05 21:09:50,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:50,342 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 21:09:50,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:50,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060996248] [2021-06-05 21:09:50,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060996248] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:50,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:50,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:50,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107973226] [2021-06-05 21:09:50,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:50,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:50,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:50,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:50,343 INFO L87 Difference]: Start difference. First operand 13418 states and 71353 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:50,622 INFO L93 Difference]: Finished difference Result 31354 states and 157417 transitions. [2021-06-05 21:09:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:50,623 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:50,725 INFO L225 Difference]: With dead ends: 31354 [2021-06-05 21:09:50,725 INFO L226 Difference]: Without dead ends: 30483 [2021-06-05 21:09:50,725 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:51,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30483 states. [2021-06-05 21:09:51,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30483 to 13298. [2021-06-05 21:09:51,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.324584492742724) internal successors, (70801), 13297 states have internal predecessors, (70801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70801 transitions. [2021-06-05 21:09:51,907 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70801 transitions. Word has length 33 [2021-06-05 21:09:51,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:51,907 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70801 transitions. [2021-06-05 21:09:51,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:51,908 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70801 transitions. [2021-06-05 21:09:51,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:51,935 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:51,935 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:51,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-06-05 21:09:51,935 INFO L430 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:51,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:51,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1705044881, now seen corresponding path program 291 times [2021-06-05 21:09:51,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:51,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168109176] [2021-06-05 21:09:51,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:52,065 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 21:09:52,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:52,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168109176] [2021-06-05 21:09:52,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168109176] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:52,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:52,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:52,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649576064] [2021-06-05 21:09:52,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:52,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:52,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:52,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:52,066 INFO L87 Difference]: Start difference. First operand 13298 states and 70801 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:52,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:52,308 INFO L93 Difference]: Finished difference Result 31380 states and 157566 transitions. [2021-06-05 21:09:52,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:52,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:52,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:52,409 INFO L225 Difference]: With dead ends: 31380 [2021-06-05 21:09:52,409 INFO L226 Difference]: Without dead ends: 30621 [2021-06-05 21:09:52,409 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:53,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30621 states. [2021-06-05 21:09:53,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30621 to 13422. [2021-06-05 21:09:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13422 states, 13421 states have (on average 5.3129424036957005) internal successors, (71305), 13421 states have internal predecessors, (71305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 71305 transitions. [2021-06-05 21:09:53,626 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 71305 transitions. Word has length 33 [2021-06-05 21:09:53,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:53,626 INFO L482 AbstractCegarLoop]: Abstraction has 13422 states and 71305 transitions. [2021-06-05 21:09:53,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:53,626 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 71305 transitions. [2021-06-05 21:09:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:53,654 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:53,654 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:53,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-06-05 21:09:53,654 INFO L430 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:53,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:53,655 INFO L82 PathProgramCache]: Analyzing trace with hash 802540655, now seen corresponding path program 292 times [2021-06-05 21:09:53,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:53,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163968605] [2021-06-05 21:09:53,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:09:53,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:53,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163968605] [2021-06-05 21:09:53,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163968605] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:53,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:53,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:53,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246548130] [2021-06-05 21:09:53,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:53,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:53,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:53,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:53,793 INFO L87 Difference]: Start difference. First operand 13422 states and 71305 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:54,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:54,036 INFO L93 Difference]: Finished difference Result 31386 states and 157459 transitions. [2021-06-05 21:09:54,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:54,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:54,298 INFO L225 Difference]: With dead ends: 31386 [2021-06-05 21:09:54,299 INFO L226 Difference]: Without dead ends: 30497 [2021-06-05 21:09:54,299 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:55,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30497 states. [2021-06-05 21:09:55,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30497 to 13298. [2021-06-05 21:09:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.320072196736106) internal successors, (70741), 13297 states have internal predecessors, (70741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:55,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70741 transitions. [2021-06-05 21:09:55,368 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70741 transitions. Word has length 33 [2021-06-05 21:09:55,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:55,368 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70741 transitions. [2021-06-05 21:09:55,368 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:55,368 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70741 transitions. [2021-06-05 21:09:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:55,396 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:55,396 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:55,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-06-05 21:09:55,396 INFO L430 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:55,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:55,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1317039919, now seen corresponding path program 293 times [2021-06-05 21:09:55,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:55,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129436085] [2021-06-05 21:09:55,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:55,540 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 21:09:55,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:55,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129436085] [2021-06-05 21:09:55,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129436085] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:55,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:55,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:55,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034231733] [2021-06-05 21:09:55,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:55,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:55,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:55,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:55,541 INFO L87 Difference]: Start difference. First operand 13298 states and 70741 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:55,802 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2021-06-05 21:09:55,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:55,909 INFO L93 Difference]: Finished difference Result 31360 states and 157434 transitions. [2021-06-05 21:09:55,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:55,909 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:55,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:56,011 INFO L225 Difference]: With dead ends: 31360 [2021-06-05 21:09:56,011 INFO L226 Difference]: Without dead ends: 30609 [2021-06-05 21:09:56,011 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 310.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:56,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30609 states. [2021-06-05 21:09:57,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30609 to 13418. [2021-06-05 21:09:57,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.309160020869046) internal successors, (71233), 13417 states have internal predecessors, (71233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71233 transitions. [2021-06-05 21:09:57,101 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71233 transitions. Word has length 33 [2021-06-05 21:09:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:57,101 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71233 transitions. [2021-06-05 21:09:57,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:57,102 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71233 transitions. [2021-06-05 21:09:57,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:57,257 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:57,257 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:57,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-06-05 21:09:57,257 INFO L430 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:57,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:57,258 INFO L82 PathProgramCache]: Analyzing trace with hash -112390737, now seen corresponding path program 294 times [2021-06-05 21:09:57,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:57,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612186391] [2021-06-05 21:09:57,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:57,406 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 21:09:57,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:57,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612186391] [2021-06-05 21:09:57,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612186391] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:57,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:57,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:57,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719647588] [2021-06-05 21:09:57,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:57,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:57,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:57,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:57,407 INFO L87 Difference]: Start difference. First operand 13418 states and 71233 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:57,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:57,666 INFO L93 Difference]: Finished difference Result 31374 states and 157359 transitions. [2021-06-05 21:09:57,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:57,666 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:57,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:57,763 INFO L225 Difference]: With dead ends: 31374 [2021-06-05 21:09:57,763 INFO L226 Difference]: Without dead ends: 30429 [2021-06-05 21:09:57,764 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:09:58,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30429 states. [2021-06-05 21:09:58,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30429 to 13238. [2021-06-05 21:09:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13238 states, 13237 states have (on average 5.325602477902848) internal successors, (70495), 13237 states have internal predecessors, (70495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:58,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 70495 transitions. [2021-06-05 21:09:58,975 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 70495 transitions. Word has length 33 [2021-06-05 21:09:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:09:58,975 INFO L482 AbstractCegarLoop]: Abstraction has 13238 states and 70495 transitions. [2021-06-05 21:09:58,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 70495 transitions. [2021-06-05 21:09:59,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:09:59,002 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:09:59,002 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:09:59,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-06-05 21:09:59,003 INFO L430 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:09:59,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:09:59,003 INFO L82 PathProgramCache]: Analyzing trace with hash -2026674129, now seen corresponding path program 295 times [2021-06-05 21:09:59,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:09:59,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688448032] [2021-06-05 21:09:59,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:09:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:09:59,137 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 21:09:59,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:09:59,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688448032] [2021-06-05 21:09:59,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688448032] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:09:59,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:09:59,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:09:59,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526009499] [2021-06-05 21:09:59,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:09:59,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:09:59,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:09:59,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:09:59,138 INFO L87 Difference]: Start difference. First operand 13238 states and 70495 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:09:59,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:09:59,368 INFO L93 Difference]: Finished difference Result 31360 states and 157530 transitions. [2021-06-05 21:09:59,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:09:59,368 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:09:59,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:09:59,472 INFO L225 Difference]: With dead ends: 31360 [2021-06-05 21:09:59,472 INFO L226 Difference]: Without dead ends: 30601 [2021-06-05 21:09:59,472 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:00,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30601 states. [2021-06-05 21:10:00,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30601 to 13418. [2021-06-05 21:10:00,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.315867928747112) internal successors, (71323), 13417 states have internal predecessors, (71323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71323 transitions. [2021-06-05 21:10:00,667 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71323 transitions. Word has length 33 [2021-06-05 21:10:00,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:00,667 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71323 transitions. [2021-06-05 21:10:00,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71323 transitions. [2021-06-05 21:10:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:00,696 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:00,696 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:00,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-06-05 21:10:00,696 INFO L430 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:00,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:00,696 INFO L82 PathProgramCache]: Analyzing trace with hash -945611503, now seen corresponding path program 296 times [2021-06-05 21:10:00,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:00,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604360813] [2021-06-05 21:10:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:00,827 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 21:10:00,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:00,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604360813] [2021-06-05 21:10:00,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604360813] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:00,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:00,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:00,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125659132] [2021-06-05 21:10:00,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:00,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:00,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:00,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:00,828 INFO L87 Difference]: Start difference. First operand 13418 states and 71323 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:01,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:01,059 INFO L93 Difference]: Finished difference Result 31352 states and 157382 transitions. [2021-06-05 21:10:01,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:01,059 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:01,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:01,157 INFO L225 Difference]: With dead ends: 31352 [2021-06-05 21:10:01,157 INFO L226 Difference]: Without dead ends: 30481 [2021-06-05 21:10:01,158 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:02,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30481 states. [2021-06-05 21:10:02,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30481 to 13298. [2021-06-05 21:10:02,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.3223283447394145) internal successors, (70771), 13297 states have internal predecessors, (70771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70771 transitions. [2021-06-05 21:10:02,388 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70771 transitions. Word has length 33 [2021-06-05 21:10:02,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:02,388 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70771 transitions. [2021-06-05 21:10:02,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70771 transitions. [2021-06-05 21:10:02,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:02,416 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:02,416 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:02,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-06-05 21:10:02,416 INFO L430 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:02,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:02,416 INFO L82 PathProgramCache]: Analyzing trace with hash 504757231, now seen corresponding path program 297 times [2021-06-05 21:10:02,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:02,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400091219] [2021-06-05 21:10:02,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:02,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:10:02,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:02,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400091219] [2021-06-05 21:10:02,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400091219] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:02,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:02,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:02,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842511375] [2021-06-05 21:10:02,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:02,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:02,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:02,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:02,581 INFO L87 Difference]: Start difference. First operand 13298 states and 70771 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:02,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:02,833 INFO L93 Difference]: Finished difference Result 31376 states and 157526 transitions. [2021-06-05 21:10:02,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:02,833 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:02,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:02,931 INFO L225 Difference]: With dead ends: 31376 [2021-06-05 21:10:02,931 INFO L226 Difference]: Without dead ends: 30617 [2021-06-05 21:10:02,931 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:03,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30617 states. [2021-06-05 21:10:04,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30617 to 13422. [2021-06-05 21:10:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13422 states, 13421 states have (on average 5.31070710081216) internal successors, (71275), 13421 states have internal predecessors, (71275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 71275 transitions. [2021-06-05 21:10:04,174 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 71275 transitions. Word has length 33 [2021-06-05 21:10:04,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:04,174 INFO L482 AbstractCegarLoop]: Abstraction has 13422 states and 71275 transitions. [2021-06-05 21:10:04,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:04,174 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 71275 transitions. [2021-06-05 21:10:04,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:04,203 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:04,203 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:04,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-06-05 21:10:04,203 INFO L430 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:04,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:04,203 INFO L82 PathProgramCache]: Analyzing trace with hash 455189487, now seen corresponding path program 298 times [2021-06-05 21:10:04,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:04,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836612214] [2021-06-05 21:10:04,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:04,352 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 21:10:04,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:04,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836612214] [2021-06-05 21:10:04,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836612214] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:04,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:04,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:04,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932518602] [2021-06-05 21:10:04,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:04,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:04,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:04,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:04,353 INFO L87 Difference]: Start difference. First operand 13422 states and 71275 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:04,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:04,609 INFO L93 Difference]: Finished difference Result 31380 states and 157414 transitions. [2021-06-05 21:10:04,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:04,609 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:04,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:04,717 INFO L225 Difference]: With dead ends: 31380 [2021-06-05 21:10:04,718 INFO L226 Difference]: Without dead ends: 30493 [2021-06-05 21:10:04,718 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30493 states. [2021-06-05 21:10:06,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30493 to 13298. [2021-06-05 21:10:06,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.317816048732797) internal successors, (70711), 13297 states have internal predecessors, (70711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:06,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70711 transitions. [2021-06-05 21:10:06,079 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70711 transitions. Word has length 33 [2021-06-05 21:10:06,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:06,079 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70711 transitions. [2021-06-05 21:10:06,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:06,079 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70711 transitions. [2021-06-05 21:10:06,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:06,109 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:06,109 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:06,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-06-05 21:10:06,109 INFO L430 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:06,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:06,109 INFO L82 PathProgramCache]: Analyzing trace with hash 892762193, now seen corresponding path program 299 times [2021-06-05 21:10:06,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:06,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281440209] [2021-06-05 21:10:06,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:06,251 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 21:10:06,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:06,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281440209] [2021-06-05 21:10:06,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281440209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:06,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:06,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:06,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573039100] [2021-06-05 21:10:06,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:06,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:06,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:06,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:06,252 INFO L87 Difference]: Start difference. First operand 13298 states and 70711 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:06,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:06,657 INFO L93 Difference]: Finished difference Result 31356 states and 157394 transitions. [2021-06-05 21:10:06,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:06,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:06,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:06,760 INFO L225 Difference]: With dead ends: 31356 [2021-06-05 21:10:06,760 INFO L226 Difference]: Without dead ends: 30605 [2021-06-05 21:10:06,760 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:07,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30605 states. [2021-06-05 21:10:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30605 to 13418. [2021-06-05 21:10:07,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.306924051576359) internal successors, (71203), 13417 states have internal predecessors, (71203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71203 transitions. [2021-06-05 21:10:07,895 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71203 transitions. Word has length 33 [2021-06-05 21:10:07,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:07,895 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71203 transitions. [2021-06-05 21:10:07,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71203 transitions. [2021-06-05 21:10:07,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:07,925 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:07,925 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:07,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-06-05 21:10:07,925 INFO L430 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:07,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:07,925 INFO L82 PathProgramCache]: Analyzing trace with hash 828128687, now seen corresponding path program 300 times [2021-06-05 21:10:07,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:07,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750278983] [2021-06-05 21:10:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:08,242 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-06-05 21:10:08,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:10:08,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:08,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750278983] [2021-06-05 21:10:08,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750278983] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:08,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:08,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:08,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389491081] [2021-06-05 21:10:08,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:08,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:08,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:08,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:08,243 INFO L87 Difference]: Start difference. First operand 13418 states and 71203 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:08,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:08,481 INFO L93 Difference]: Finished difference Result 31368 states and 157314 transitions. [2021-06-05 21:10:08,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:08,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:08,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:08,581 INFO L225 Difference]: With dead ends: 31368 [2021-06-05 21:10:08,581 INFO L226 Difference]: Without dead ends: 30425 [2021-06-05 21:10:08,581 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 343.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30425 states. [2021-06-05 21:10:09,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30425 to 13238. [2021-06-05 21:10:09,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13238 states, 13237 states have (on average 5.32333610334668) internal successors, (70465), 13237 states have internal predecessors, (70465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 70465 transitions. [2021-06-05 21:10:09,906 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 70465 transitions. Word has length 33 [2021-06-05 21:10:09,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:09,906 INFO L482 AbstractCegarLoop]: Abstraction has 13238 states and 70465 transitions. [2021-06-05 21:10:09,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:09,906 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 70465 transitions. [2021-06-05 21:10:09,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:09,936 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:09,936 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:09,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-06-05 21:10:09,936 INFO L430 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:09,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1563141359, now seen corresponding path program 301 times [2021-06-05 21:10:09,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:09,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870496851] [2021-06-05 21:10:09,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:10,093 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 21:10:10,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:10,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870496851] [2021-06-05 21:10:10,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870496851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:10,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:10,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:10,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913308615] [2021-06-05 21:10:10,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:10,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:10,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:10,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:10,094 INFO L87 Difference]: Start difference. First operand 13238 states and 70465 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:10,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:10,338 INFO L93 Difference]: Finished difference Result 31404 states and 157654 transitions. [2021-06-05 21:10:10,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:10,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:10,440 INFO L225 Difference]: With dead ends: 31404 [2021-06-05 21:10:10,440 INFO L226 Difference]: Without dead ends: 30645 [2021-06-05 21:10:10,440 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:11,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30645 states. [2021-06-05 21:10:11,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30645 to 13424. [2021-06-05 21:10:11,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13424 states, 13423 states have (on average 5.312821276912762) internal successors, (71314), 13423 states have internal predecessors, (71314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:11,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13424 states to 13424 states and 71314 transitions. [2021-06-05 21:10:11,704 INFO L78 Accepts]: Start accepts. Automaton has 13424 states and 71314 transitions. Word has length 33 [2021-06-05 21:10:11,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:11,704 INFO L482 AbstractCegarLoop]: Abstraction has 13424 states and 71314 transitions. [2021-06-05 21:10:11,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:11,704 INFO L276 IsEmpty]: Start isEmpty. Operand 13424 states and 71314 transitions. [2021-06-05 21:10:11,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:11,735 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:11,735 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:11,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-06-05 21:10:11,735 INFO L430 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:11,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:11,736 INFO L82 PathProgramCache]: Analyzing trace with hash 944444177, now seen corresponding path program 302 times [2021-06-05 21:10:11,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:11,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168271322] [2021-06-05 21:10:11,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:11,876 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 21:10:11,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:11,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168271322] [2021-06-05 21:10:11,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168271322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:11,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:11,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:11,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576921258] [2021-06-05 21:10:11,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:11,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:11,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:11,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:11,877 INFO L87 Difference]: Start difference. First operand 13424 states and 71314 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:12,142 INFO L93 Difference]: Finished difference Result 31410 states and 157547 transitions. [2021-06-05 21:10:12,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:12,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:12,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:12,251 INFO L225 Difference]: With dead ends: 31410 [2021-06-05 21:10:12,251 INFO L226 Difference]: Without dead ends: 30521 [2021-06-05 21:10:12,252 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:12,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30521 states. [2021-06-05 21:10:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30521 to 13300. [2021-06-05 21:10:13,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13300 states, 13299 states have (on average 5.319798481088804) internal successors, (70748), 13299 states have internal predecessors, (70748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13300 states to 13300 states and 70748 transitions. [2021-06-05 21:10:13,497 INFO L78 Accepts]: Start accepts. Automaton has 13300 states and 70748 transitions. Word has length 33 [2021-06-05 21:10:13,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:13,497 INFO L482 AbstractCegarLoop]: Abstraction has 13300 states and 70748 transitions. [2021-06-05 21:10:13,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:13,497 INFO L276 IsEmpty]: Start isEmpty. Operand 13300 states and 70748 transitions. [2021-06-05 21:10:13,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:13,527 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:13,527 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:13,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-06-05 21:10:13,527 INFO L430 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:13,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:13,528 INFO L82 PathProgramCache]: Analyzing trace with hash 708764399, now seen corresponding path program 303 times [2021-06-05 21:10:13,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:13,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161851480] [2021-06-05 21:10:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:13,673 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 21:10:13,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:13,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161851480] [2021-06-05 21:10:13,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161851480] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:13,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:13,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:13,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585752884] [2021-06-05 21:10:13,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:13,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:13,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:13,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:13,674 INFO L87 Difference]: Start difference. First operand 13300 states and 70748 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:13,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:13,961 INFO L93 Difference]: Finished difference Result 31402 states and 157587 transitions. [2021-06-05 21:10:13,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:13,962 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:13,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:14,070 INFO L225 Difference]: With dead ends: 31402 [2021-06-05 21:10:14,070 INFO L226 Difference]: Without dead ends: 30643 [2021-06-05 21:10:14,070 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:14,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30643 states. [2021-06-05 21:10:15,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30643 to 13424. [2021-06-05 21:10:15,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13424 states, 13423 states have (on average 5.30820233926842) internal successors, (71252), 13423 states have internal predecessors, (71252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13424 states to 13424 states and 71252 transitions. [2021-06-05 21:10:15,320 INFO L78 Accepts]: Start accepts. Automaton has 13424 states and 71252 transitions. Word has length 33 [2021-06-05 21:10:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:15,320 INFO L482 AbstractCegarLoop]: Abstraction has 13424 states and 71252 transitions. [2021-06-05 21:10:15,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:15,320 INFO L276 IsEmpty]: Start isEmpty. Operand 13424 states and 71252 transitions. [2021-06-05 21:10:15,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:15,349 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:15,349 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:15,349 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-06-05 21:10:15,349 INFO L430 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:15,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1979249425, now seen corresponding path program 304 times [2021-06-05 21:10:15,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:15,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92323201] [2021-06-05 21:10:15,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:15,498 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 21:10:15,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:15,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92323201] [2021-06-05 21:10:15,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92323201] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:15,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:15,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:15,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769486786] [2021-06-05 21:10:15,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:15,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:15,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:15,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:15,499 INFO L87 Difference]: Start difference. First operand 13424 states and 71252 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:15,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:15,736 INFO L93 Difference]: Finished difference Result 31406 states and 157475 transitions. [2021-06-05 21:10:15,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:15,736 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:15,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:15,834 INFO L225 Difference]: With dead ends: 31406 [2021-06-05 21:10:15,835 INFO L226 Difference]: Without dead ends: 30519 [2021-06-05 21:10:15,835 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:16,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30519 states. [2021-06-05 21:10:17,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30519 to 13300. [2021-06-05 21:10:17,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13300 states, 13299 states have (on average 5.315136476426799) internal successors, (70686), 13299 states have internal predecessors, (70686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:17,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13300 states to 13300 states and 70686 transitions. [2021-06-05 21:10:17,085 INFO L78 Accepts]: Start accepts. Automaton has 13300 states and 70686 transitions. Word has length 33 [2021-06-05 21:10:17,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:17,085 INFO L482 AbstractCegarLoop]: Abstraction has 13300 states and 70686 transitions. [2021-06-05 21:10:17,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:17,085 INFO L276 IsEmpty]: Start isEmpty. Operand 13300 states and 70686 transitions. [2021-06-05 21:10:17,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:17,115 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:17,115 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:17,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-06-05 21:10:17,115 INFO L430 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:17,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:17,115 INFO L82 PathProgramCache]: Analyzing trace with hash 554482449, now seen corresponding path program 305 times [2021-06-05 21:10:17,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:17,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972548368] [2021-06-05 21:10:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:17,250 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 21:10:17,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:17,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972548368] [2021-06-05 21:10:17,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972548368] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:17,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:17,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:17,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714093332] [2021-06-05 21:10:17,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:17,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:17,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:17,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:17,251 INFO L87 Difference]: Start difference. First operand 13300 states and 70686 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:17,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:17,482 INFO L93 Difference]: Finished difference Result 31416 states and 157566 transitions. [2021-06-05 21:10:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:17,482 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:17,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:17,763 INFO L225 Difference]: With dead ends: 31416 [2021-06-05 21:10:17,763 INFO L226 Difference]: Without dead ends: 30651 [2021-06-05 21:10:17,763 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30651 states. [2021-06-05 21:10:18,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30651 to 13426. [2021-06-05 21:10:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13426 states, 13425 states have (on average 5.30316573556797) internal successors, (71195), 13425 states have internal predecessors, (71195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:18,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13426 states to 13426 states and 71195 transitions. [2021-06-05 21:10:18,834 INFO L78 Accepts]: Start accepts. Automaton has 13426 states and 71195 transitions. Word has length 33 [2021-06-05 21:10:18,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:18,834 INFO L482 AbstractCegarLoop]: Abstraction has 13426 states and 71195 transitions. [2021-06-05 21:10:18,834 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:18,834 INFO L276 IsEmpty]: Start isEmpty. Operand 13426 states and 71195 transitions. [2021-06-05 21:10:18,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:18,866 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:18,866 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:18,866 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-06-05 21:10:18,866 INFO L430 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:18,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:18,866 INFO L82 PathProgramCache]: Analyzing trace with hash -292314513, now seen corresponding path program 306 times [2021-06-05 21:10:18,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:18,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703213839] [2021-06-05 21:10:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:19,004 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 21:10:19,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:19,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703213839] [2021-06-05 21:10:19,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703213839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:19,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:19,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:19,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350304536] [2021-06-05 21:10:19,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:19,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:19,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:19,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:19,005 INFO L87 Difference]: Start difference. First operand 13426 states and 71195 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:19,399 INFO L93 Difference]: Finished difference Result 31414 states and 157435 transitions. [2021-06-05 21:10:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:19,399 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:19,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:19,503 INFO L225 Difference]: With dead ends: 31414 [2021-06-05 21:10:19,503 INFO L226 Difference]: Without dead ends: 30463 [2021-06-05 21:10:19,503 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:20,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30463 states. [2021-06-05 21:10:20,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30463 to 13238. [2021-06-05 21:10:20,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13238 states, 13237 states have (on average 5.321069728790511) internal successors, (70435), 13237 states have internal predecessors, (70435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:20,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 70435 transitions. [2021-06-05 21:10:20,593 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 70435 transitions. Word has length 33 [2021-06-05 21:10:20,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:20,593 INFO L482 AbstractCegarLoop]: Abstraction has 13238 states and 70435 transitions. [2021-06-05 21:10:20,593 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:20,593 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 70435 transitions. [2021-06-05 21:10:20,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:20,622 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:20,622 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:20,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-06-05 21:10:20,622 INFO L430 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:20,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:20,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1483620621, now seen corresponding path program 307 times [2021-06-05 21:10:20,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:20,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250386188] [2021-06-05 21:10:20,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:20,880 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 21:10:20,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:20,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250386188] [2021-06-05 21:10:20,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250386188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:20,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:20,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:20,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409506926] [2021-06-05 21:10:20,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:20,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:20,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:20,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:20,881 INFO L87 Difference]: Start difference. First operand 13238 states and 70435 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:21,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:21,152 INFO L93 Difference]: Finished difference Result 31366 states and 157483 transitions. [2021-06-05 21:10:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:21,152 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:21,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:21,253 INFO L225 Difference]: With dead ends: 31366 [2021-06-05 21:10:21,253 INFO L226 Difference]: Without dead ends: 30615 [2021-06-05 21:10:21,253 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:21,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30615 states. [2021-06-05 21:10:22,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30615 to 13418. [2021-06-05 21:10:22,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.311395990161735) internal successors, (71263), 13417 states have internal predecessors, (71263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:22,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71263 transitions. [2021-06-05 21:10:22,565 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71263 transitions. Word has length 33 [2021-06-05 21:10:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:22,565 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71263 transitions. [2021-06-05 21:10:22,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:22,565 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71263 transitions. [2021-06-05 21:10:22,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:22,594 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:22,594 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:22,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-06-05 21:10:22,594 INFO L430 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:22,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:22,594 INFO L82 PathProgramCache]: Analyzing trace with hash -278971439, now seen corresponding path program 308 times [2021-06-05 21:10:22,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:22,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917675342] [2021-06-05 21:10:22,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:10:22,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:22,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917675342] [2021-06-05 21:10:22,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917675342] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:22,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:22,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:22,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499123204] [2021-06-05 21:10:22,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:22,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:22,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:22,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:22,742 INFO L87 Difference]: Start difference. First operand 13418 states and 71263 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:22,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:22,993 INFO L93 Difference]: Finished difference Result 31380 states and 157408 transitions. [2021-06-05 21:10:22,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:22,993 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:22,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:23,084 INFO L225 Difference]: With dead ends: 31380 [2021-06-05 21:10:23,084 INFO L226 Difference]: Without dead ends: 30495 [2021-06-05 21:10:23,085 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:23,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30495 states. [2021-06-05 21:10:24,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30495 to 13298. [2021-06-05 21:10:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.317816048732797) internal successors, (70711), 13297 states have internal predecessors, (70711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:24,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70711 transitions. [2021-06-05 21:10:24,274 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70711 transitions. Word has length 33 [2021-06-05 21:10:24,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:24,274 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70711 transitions. [2021-06-05 21:10:24,274 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:24,274 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70711 transitions. [2021-06-05 21:10:24,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:24,303 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:24,303 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:24,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-06-05 21:10:24,303 INFO L430 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:24,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:24,304 INFO L82 PathProgramCache]: Analyzing trace with hash 788285137, now seen corresponding path program 309 times [2021-06-05 21:10:24,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:24,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869316209] [2021-06-05 21:10:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:24,442 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 21:10:24,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:24,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869316209] [2021-06-05 21:10:24,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869316209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:24,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:24,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:24,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461624102] [2021-06-05 21:10:24,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:24,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:24,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:24,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:24,443 INFO L87 Difference]: Start difference. First operand 13298 states and 70711 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:24,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:24,669 INFO L93 Difference]: Finished difference Result 31364 states and 157418 transitions. [2021-06-05 21:10:24,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:24,669 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:24,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:24,771 INFO L225 Difference]: With dead ends: 31364 [2021-06-05 21:10:24,771 INFO L226 Difference]: Without dead ends: 30613 [2021-06-05 21:10:24,771 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:25,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30613 states. [2021-06-05 21:10:25,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30613 to 13418. [2021-06-05 21:10:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13418 states, 13417 states have (on average 5.306924051576359) internal successors, (71203), 13417 states have internal predecessors, (71203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71203 transitions. [2021-06-05 21:10:26,007 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71203 transitions. Word has length 33 [2021-06-05 21:10:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:26,007 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71203 transitions. [2021-06-05 21:10:26,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71203 transitions. [2021-06-05 21:10:26,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:26,034 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:26,034 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:26,034 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-06-05 21:10:26,034 INFO L430 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:26,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:26,035 INFO L82 PathProgramCache]: Analyzing trace with hash 2043704401, now seen corresponding path program 310 times [2021-06-05 21:10:26,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:26,035 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952333820] [2021-06-05 21:10:26,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:26,177 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 21:10:26,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:26,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952333820] [2021-06-05 21:10:26,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952333820] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:26,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:26,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:26,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856983817] [2021-06-05 21:10:26,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:26,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:26,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:26,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:26,178 INFO L87 Difference]: Start difference. First operand 13418 states and 71203 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:26,417 INFO L93 Difference]: Finished difference Result 31376 states and 157338 transitions. [2021-06-05 21:10:26,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:26,417 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:26,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:26,514 INFO L225 Difference]: With dead ends: 31376 [2021-06-05 21:10:26,514 INFO L226 Difference]: Without dead ends: 30493 [2021-06-05 21:10:26,514 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:27,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30493 states. [2021-06-05 21:10:27,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30493 to 13298. [2021-06-05 21:10:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13298 states, 13297 states have (on average 5.313303752726179) internal successors, (70651), 13297 states have internal predecessors, (70651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70651 transitions. [2021-06-05 21:10:27,749 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70651 transitions. Word has length 33 [2021-06-05 21:10:27,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:27,749 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70651 transitions. [2021-06-05 21:10:27,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70651 transitions. [2021-06-05 21:10:27,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:27,780 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:27,780 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:27,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-06-05 21:10:27,780 INFO L430 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:27,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:27,780 INFO L82 PathProgramCache]: Analyzing trace with hash 2032738735, now seen corresponding path program 311 times [2021-06-05 21:10:27,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:27,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070389859] [2021-06-05 21:10:27,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:27,920 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 21:10:27,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:27,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070389859] [2021-06-05 21:10:27,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070389859] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:27,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:27,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:27,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181100838] [2021-06-05 21:10:27,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:27,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:27,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:27,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:27,921 INFO L87 Difference]: Start difference. First operand 13298 states and 70651 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:28,171 INFO L93 Difference]: Finished difference Result 31398 states and 157471 transitions. [2021-06-05 21:10:28,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:28,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:28,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:28,272 INFO L225 Difference]: With dead ends: 31398 [2021-06-05 21:10:28,272 INFO L226 Difference]: Without dead ends: 30633 [2021-06-05 21:10:28,272 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:29,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30633 states. [2021-06-05 21:10:29,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30633 to 13424. [2021-06-05 21:10:29,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13424 states, 13423 states have (on average 5.30134843179617) internal successors, (71160), 13423 states have internal predecessors, (71160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13424 states to 13424 states and 71160 transitions. [2021-06-05 21:10:29,506 INFO L78 Accepts]: Start accepts. Automaton has 13424 states and 71160 transitions. Word has length 33 [2021-06-05 21:10:29,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:29,506 INFO L482 AbstractCegarLoop]: Abstraction has 13424 states and 71160 transitions. [2021-06-05 21:10:29,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:29,507 INFO L276 IsEmpty]: Start isEmpty. Operand 13424 states and 71160 transitions. [2021-06-05 21:10:29,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:29,534 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:29,534 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:29,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-06-05 21:10:29,535 INFO L430 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:29,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:29,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1551836689, now seen corresponding path program 312 times [2021-06-05 21:10:29,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:29,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927324365] [2021-06-05 21:10:29,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:10:29,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:29,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927324365] [2021-06-05 21:10:29,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927324365] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:29,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:29,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:29,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989664001] [2021-06-05 21:10:29,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:29,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:29,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:29,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:29,703 INFO L87 Difference]: Start difference. First operand 13424 states and 71160 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:30,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:30,088 INFO L93 Difference]: Finished difference Result 31396 states and 157340 transitions. [2021-06-05 21:10:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:30,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:30,191 INFO L225 Difference]: With dead ends: 31396 [2021-06-05 21:10:30,192 INFO L226 Difference]: Without dead ends: 30417 [2021-06-05 21:10:30,192 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:30,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30417 states. [2021-06-05 21:10:31,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30417 to 13208. [2021-06-05 21:10:31,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13208 states, 13207 states have (on average 5.324979177708791) internal successors, (70327), 13207 states have internal predecessors, (70327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70327 transitions. [2021-06-05 21:10:31,287 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70327 transitions. Word has length 33 [2021-06-05 21:10:31,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:31,287 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70327 transitions. [2021-06-05 21:10:31,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70327 transitions. [2021-06-05 21:10:31,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:31,314 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:31,314 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:31,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-06-05 21:10:31,314 INFO L430 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:31,314 INFO L82 PathProgramCache]: Analyzing trace with hash -2066980079, now seen corresponding path program 313 times [2021-06-05 21:10:31,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:31,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068471460] [2021-06-05 21:10:31,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:31,462 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 21:10:31,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:31,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068471460] [2021-06-05 21:10:31,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068471460] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:31,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:31,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:31,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562108784] [2021-06-05 21:10:31,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:31,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:31,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:31,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:31,463 INFO L87 Difference]: Start difference. First operand 13208 states and 70327 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:31,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:31,810 INFO L93 Difference]: Finished difference Result 32665 states and 163555 transitions. [2021-06-05 21:10:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:31,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:31,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:31,915 INFO L225 Difference]: With dead ends: 32665 [2021-06-05 21:10:31,915 INFO L226 Difference]: Without dead ends: 31906 [2021-06-05 21:10:31,915 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:32,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31906 states. [2021-06-05 21:10:32,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31906 to 13617. [2021-06-05 21:10:32,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13617 states, 13616 states have (on average 5.309341950646298) internal successors, (72292), 13616 states have internal predecessors, (72292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:33,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13617 states to 13617 states and 72292 transitions. [2021-06-05 21:10:33,194 INFO L78 Accepts]: Start accepts. Automaton has 13617 states and 72292 transitions. Word has length 33 [2021-06-05 21:10:33,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:33,194 INFO L482 AbstractCegarLoop]: Abstraction has 13617 states and 72292 transitions. [2021-06-05 21:10:33,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:33,195 INFO L276 IsEmpty]: Start isEmpty. Operand 13617 states and 72292 transitions. [2021-06-05 21:10:33,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:33,223 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:33,223 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:33,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-06-05 21:10:33,223 INFO L430 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:33,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:33,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1297208559, now seen corresponding path program 314 times [2021-06-05 21:10:33,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:33,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125181433] [2021-06-05 21:10:33,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:33,372 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 21:10:33,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:33,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125181433] [2021-06-05 21:10:33,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125181433] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:33,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:33,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:33,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936387819] [2021-06-05 21:10:33,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:33,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:33,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:33,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:33,373 INFO L87 Difference]: Start difference. First operand 13617 states and 72292 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:33,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:33,589 INFO L93 Difference]: Finished difference Result 32800 states and 164026 transitions. [2021-06-05 21:10:33,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:33,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:33,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:33,687 INFO L225 Difference]: With dead ends: 32800 [2021-06-05 21:10:33,688 INFO L226 Difference]: Without dead ends: 31718 [2021-06-05 21:10:33,688 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:34,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31718 states. [2021-06-05 21:10:34,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31718 to 13429. [2021-06-05 21:10:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13429 states, 13428 states have (on average 5.315311289842121) internal successors, (71374), 13428 states have internal predecessors, (71374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:34,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 71374 transitions. [2021-06-05 21:10:34,948 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 71374 transitions. Word has length 33 [2021-06-05 21:10:34,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:34,948 INFO L482 AbstractCegarLoop]: Abstraction has 13429 states and 71374 transitions. [2021-06-05 21:10:34,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 71374 transitions. [2021-06-05 21:10:34,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:34,976 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:34,976 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:34,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-06-05 21:10:34,976 INFO L430 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:34,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:34,976 INFO L82 PathProgramCache]: Analyzing trace with hash 204925679, now seen corresponding path program 315 times [2021-06-05 21:10:34,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:34,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277212325] [2021-06-05 21:10:34,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:35,135 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 21:10:35,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:35,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277212325] [2021-06-05 21:10:35,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277212325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:35,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:35,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:35,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553193900] [2021-06-05 21:10:35,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:35,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:35,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:35,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:35,136 INFO L87 Difference]: Start difference. First operand 13429 states and 71374 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:35,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:35,375 INFO L93 Difference]: Finished difference Result 32472 states and 162563 transitions. [2021-06-05 21:10:35,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:35,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:35,481 INFO L225 Difference]: With dead ends: 32472 [2021-06-05 21:10:35,482 INFO L226 Difference]: Without dead ends: 31713 [2021-06-05 21:10:35,482 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:36,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31713 states. [2021-06-05 21:10:36,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31713 to 13553. [2021-06-05 21:10:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13553 states, 13552 states have (on average 5.303866587957497) internal successors, (71878), 13552 states have internal predecessors, (71878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13553 states to 13553 states and 71878 transitions. [2021-06-05 21:10:36,740 INFO L78 Accepts]: Start accepts. Automaton has 13553 states and 71878 transitions. Word has length 33 [2021-06-05 21:10:36,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:36,741 INFO L482 AbstractCegarLoop]: Abstraction has 13553 states and 71878 transitions. [2021-06-05 21:10:36,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 13553 states and 71878 transitions. [2021-06-05 21:10:36,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:36,769 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:36,769 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:36,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-06-05 21:10:36,769 INFO L430 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:36,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:36,769 INFO L82 PathProgramCache]: Analyzing trace with hash -262403311, now seen corresponding path program 316 times [2021-06-05 21:10:36,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:36,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872305891] [2021-06-05 21:10:36,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:36,908 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 21:10:36,909 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:36,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872305891] [2021-06-05 21:10:36,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872305891] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:36,909 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:36,909 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:36,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364075915] [2021-06-05 21:10:36,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:36,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:36,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:36,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:36,909 INFO L87 Difference]: Start difference. First operand 13553 states and 71878 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:37,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:37,144 INFO L93 Difference]: Finished difference Result 32478 states and 162456 transitions. [2021-06-05 21:10:37,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:37,144 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:37,251 INFO L225 Difference]: With dead ends: 32478 [2021-06-05 21:10:37,252 INFO L226 Difference]: Without dead ends: 31589 [2021-06-05 21:10:37,252 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:38,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31589 states. [2021-06-05 21:10:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31589 to 13429. [2021-06-05 21:10:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13429 states, 13428 states have (on average 5.310694072088174) internal successors, (71312), 13428 states have internal predecessors, (71312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 71312 transitions. [2021-06-05 21:10:38,537 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 71312 transitions. Word has length 33 [2021-06-05 21:10:38,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:38,537 INFO L482 AbstractCegarLoop]: Abstraction has 13429 states and 71312 transitions. [2021-06-05 21:10:38,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:38,538 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 71312 transitions. [2021-06-05 21:10:38,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:38,567 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:38,567 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:38,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-06-05 21:10:38,567 INFO L430 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:38,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:38,568 INFO L82 PathProgramCache]: Analyzing trace with hash -984161519, now seen corresponding path program 317 times [2021-06-05 21:10:38,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:38,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665530628] [2021-06-05 21:10:38,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:38,700 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 21:10:38,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:38,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665530628] [2021-06-05 21:10:38,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665530628] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:38,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:38,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:38,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709318339] [2021-06-05 21:10:38,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:38,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:38,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:38,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:38,701 INFO L87 Difference]: Start difference. First operand 13429 states and 71312 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:38,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:38,946 INFO L93 Difference]: Finished difference Result 32873 states and 164277 transitions. [2021-06-05 21:10:38,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:38,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:38,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:39,047 INFO L225 Difference]: With dead ends: 32873 [2021-06-05 21:10:39,047 INFO L226 Difference]: Without dead ends: 31979 [2021-06-05 21:10:39,047 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:39,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31979 states. [2021-06-05 21:10:40,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31979 to 13684. [2021-06-05 21:10:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13684 states, 13683 states have (on average 5.286486881531828) internal successors, (72335), 13683 states have internal predecessors, (72335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:40,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13684 states to 13684 states and 72335 transitions. [2021-06-05 21:10:40,294 INFO L78 Accepts]: Start accepts. Automaton has 13684 states and 72335 transitions. Word has length 33 [2021-06-05 21:10:40,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:40,294 INFO L482 AbstractCegarLoop]: Abstraction has 13684 states and 72335 transitions. [2021-06-05 21:10:40,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:40,294 INFO L276 IsEmpty]: Start isEmpty. Operand 13684 states and 72335 transitions. [2021-06-05 21:10:40,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:40,323 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:40,323 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:40,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-06-05 21:10:40,323 INFO L430 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:40,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:40,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1830958481, now seen corresponding path program 318 times [2021-06-05 21:10:40,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:40,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253648645] [2021-06-05 21:10:40,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:40,460 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 21:10:40,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:40,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253648645] [2021-06-05 21:10:40,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253648645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:40,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:40,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:40,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373558205] [2021-06-05 21:10:40,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:40,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:40,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:40,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:40,461 INFO L87 Difference]: Start difference. First operand 13684 states and 72335 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:40,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:40,856 INFO L93 Difference]: Finished difference Result 32744 states and 163508 transitions. [2021-06-05 21:10:40,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:40,856 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:40,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:40,958 INFO L225 Difference]: With dead ends: 32744 [2021-06-05 21:10:40,958 INFO L226 Difference]: Without dead ends: 31598 [2021-06-05 21:10:40,958 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:41,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31598 states. [2021-06-05 21:10:42,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31598 to 13303. [2021-06-05 21:10:42,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13303 states, 13302 states have (on average 5.317997293640054) internal successors, (70740), 13302 states have internal predecessors, (70740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:42,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 70740 transitions. [2021-06-05 21:10:42,064 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 70740 transitions. Word has length 33 [2021-06-05 21:10:42,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:42,064 INFO L482 AbstractCegarLoop]: Abstraction has 13303 states and 70740 transitions. [2021-06-05 21:10:42,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:42,065 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 70740 transitions. [2021-06-05 21:10:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:42,094 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:42,094 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:42,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-06-05 21:10:42,094 INFO L430 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:42,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:42,095 INFO L82 PathProgramCache]: Analyzing trace with hash -608933009, now seen corresponding path program 319 times [2021-06-05 21:10:42,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:42,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036868867] [2021-06-05 21:10:42,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:42,329 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 21:10:42,355 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 21:10:42,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:42,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036868867] [2021-06-05 21:10:42,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036868867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:42,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:42,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:42,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596127602] [2021-06-05 21:10:42,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:42,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:42,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:42,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:42,356 INFO L87 Difference]: Start difference. First operand 13303 states and 70740 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:42,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:42,576 INFO L93 Difference]: Finished difference Result 32566 states and 163084 transitions. [2021-06-05 21:10:42,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:42,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:42,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:42,678 INFO L225 Difference]: With dead ends: 32566 [2021-06-05 21:10:42,678 INFO L226 Difference]: Without dead ends: 31807 [2021-06-05 21:10:42,679 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 286.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:43,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31807 states. [2021-06-05 21:10:43,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31807 to 13585. [2021-06-05 21:10:43,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13585 states, 13584 states have (on average 5.306610718492344) internal successors, (72085), 13584 states have internal predecessors, (72085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13585 states to 13585 states and 72085 transitions. [2021-06-05 21:10:43,946 INFO L78 Accepts]: Start accepts. Automaton has 13585 states and 72085 transitions. Word has length 33 [2021-06-05 21:10:43,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:43,946 INFO L482 AbstractCegarLoop]: Abstraction has 13585 states and 72085 transitions. [2021-06-05 21:10:43,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:43,947 INFO L276 IsEmpty]: Start isEmpty. Operand 13585 states and 72085 transitions. [2021-06-05 21:10:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:43,975 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:43,975 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:43,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-06-05 21:10:43,976 INFO L430 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:43,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:43,976 INFO L82 PathProgramCache]: Analyzing trace with hash 160838511, now seen corresponding path program 320 times [2021-06-05 21:10:43,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:43,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771512627] [2021-06-05 21:10:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:44,121 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 21:10:44,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:44,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771512627] [2021-06-05 21:10:44,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771512627] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:44,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:44,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:44,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691945725] [2021-06-05 21:10:44,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:44,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:44,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:44,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:44,122 INFO L87 Difference]: Start difference. First operand 13585 states and 72085 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:44,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:44,336 INFO L93 Difference]: Finished difference Result 32701 states and 163555 transitions. [2021-06-05 21:10:44,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:44,336 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:44,439 INFO L225 Difference]: With dead ends: 32701 [2021-06-05 21:10:44,439 INFO L226 Difference]: Without dead ends: 31619 [2021-06-05 21:10:44,439 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:45,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31619 states. [2021-06-05 21:10:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31619 to 13397. [2021-06-05 21:10:45,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13397 states, 13396 states have (on average 5.312555986861749) internal successors, (71167), 13396 states have internal predecessors, (71167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:45,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 71167 transitions. [2021-06-05 21:10:45,708 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 71167 transitions. Word has length 33 [2021-06-05 21:10:45,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:45,708 INFO L482 AbstractCegarLoop]: Abstraction has 13397 states and 71167 transitions. [2021-06-05 21:10:45,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:45,708 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 71167 transitions. [2021-06-05 21:10:45,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:45,735 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:45,735 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:45,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-06-05 21:10:45,735 INFO L430 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:45,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:45,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1086586001, now seen corresponding path program 321 times [2021-06-05 21:10:45,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:45,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634226279] [2021-06-05 21:10:45,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:45,866 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 21:10:45,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:45,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634226279] [2021-06-05 21:10:45,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634226279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:45,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:45,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:45,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608011842] [2021-06-05 21:10:45,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:45,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:45,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:45,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:45,867 INFO L87 Difference]: Start difference. First operand 13397 states and 71167 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:46,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:46,112 INFO L93 Difference]: Finished difference Result 32371 states and 162087 transitions. [2021-06-05 21:10:46,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:46,112 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:46,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:46,215 INFO L225 Difference]: With dead ends: 32371 [2021-06-05 21:10:46,215 INFO L226 Difference]: Without dead ends: 31612 [2021-06-05 21:10:46,215 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:47,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31612 states. [2021-06-05 21:10:47,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31612 to 13521. [2021-06-05 21:10:47,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13521 states, 13520 states have (on average 5.301109467455621) internal successors, (71671), 13520 states have internal predecessors, (71671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:47,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 71671 transitions. [2021-06-05 21:10:47,456 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 71671 transitions. Word has length 33 [2021-06-05 21:10:47,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:47,457 INFO L482 AbstractCegarLoop]: Abstraction has 13521 states and 71671 transitions. [2021-06-05 21:10:47,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:47,457 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 71671 transitions. [2021-06-05 21:10:47,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:47,483 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:47,483 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:47,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-06-05 21:10:47,484 INFO L430 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:47,484 INFO L82 PathProgramCache]: Analyzing trace with hash -509158639, now seen corresponding path program 322 times [2021-06-05 21:10:47,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:47,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025225364] [2021-06-05 21:10:47,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:47,619 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 21:10:47,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:47,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025225364] [2021-06-05 21:10:47,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025225364] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:47,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:47,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:47,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391354462] [2021-06-05 21:10:47,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:47,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:47,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:47,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:47,620 INFO L87 Difference]: Start difference. First operand 13521 states and 71671 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:47,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:47,867 INFO L93 Difference]: Finished difference Result 32375 states and 161975 transitions. [2021-06-05 21:10:47,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:47,868 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:47,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:47,974 INFO L225 Difference]: With dead ends: 32375 [2021-06-05 21:10:47,974 INFO L226 Difference]: Without dead ends: 31488 [2021-06-05 21:10:47,974 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:48,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31488 states. [2021-06-05 21:10:49,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31488 to 13397. [2021-06-05 21:10:49,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13397 states, 13396 states have (on average 5.307927739623768) internal successors, (71105), 13396 states have internal predecessors, (71105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:49,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 71105 transitions. [2021-06-05 21:10:49,194 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 71105 transitions. Word has length 33 [2021-06-05 21:10:49,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:49,194 INFO L482 AbstractCegarLoop]: Abstraction has 13397 states and 71105 transitions. [2021-06-05 21:10:49,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:49,195 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 71105 transitions. [2021-06-05 21:10:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:49,221 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:49,221 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:49,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-06-05 21:10:49,221 INFO L430 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:49,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:49,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1326236433, now seen corresponding path program 323 times [2021-06-05 21:10:49,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:49,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12011547] [2021-06-05 21:10:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:49,352 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 21:10:49,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:49,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12011547] [2021-06-05 21:10:49,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12011547] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:49,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:49,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:49,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625107990] [2021-06-05 21:10:49,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:49,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:49,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:49,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:49,353 INFO L87 Difference]: Start difference. First operand 13397 states and 71105 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:49,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:49,563 INFO L93 Difference]: Finished difference Result 32707 states and 163542 transitions. [2021-06-05 21:10:49,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:49,563 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:49,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:49,666 INFO L225 Difference]: With dead ends: 32707 [2021-06-05 21:10:49,666 INFO L226 Difference]: Without dead ends: 31813 [2021-06-05 21:10:49,666 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 138.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:50,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31813 states. [2021-06-05 21:10:50,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31813 to 13587. [2021-06-05 21:10:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13587 states, 13586 states have (on average 5.290004416310908) internal successors, (71870), 13586 states have internal predecessors, (71870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:50,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13587 states to 13587 states and 71870 transitions. [2021-06-05 21:10:50,903 INFO L78 Accepts]: Start accepts. Automaton has 13587 states and 71870 transitions. Word has length 33 [2021-06-05 21:10:50,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:50,903 INFO L482 AbstractCegarLoop]: Abstraction has 13587 states and 71870 transitions. [2021-06-05 21:10:50,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:50,903 INFO L276 IsEmpty]: Start isEmpty. Operand 13587 states and 71870 transitions. [2021-06-05 21:10:50,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:50,931 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:50,931 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:50,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-06-05 21:10:50,931 INFO L430 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:50,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:50,931 INFO L82 PathProgramCache]: Analyzing trace with hash -789843217, now seen corresponding path program 324 times [2021-06-05 21:10:50,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:50,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415154947] [2021-06-05 21:10:50,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:51,063 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 21:10:51,063 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:51,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415154947] [2021-06-05 21:10:51,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415154947] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:51,064 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:51,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:51,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063727967] [2021-06-05 21:10:51,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:51,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:51,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:51,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:51,064 INFO L87 Difference]: Start difference. First operand 13587 states and 71870 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:51,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:51,443 INFO L93 Difference]: Finished difference Result 32576 states and 162769 transitions. [2021-06-05 21:10:51,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:51,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:51,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:51,541 INFO L225 Difference]: With dead ends: 32576 [2021-06-05 21:10:51,541 INFO L226 Difference]: Without dead ends: 31529 [2021-06-05 21:10:51,541 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:52,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31529 states. [2021-06-05 21:10:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31529 to 13303. [2021-06-05 21:10:52,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13303 states, 13302 states have (on average 5.314463990377387) internal successors, (70693), 13302 states have internal predecessors, (70693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:52,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 70693 transitions. [2021-06-05 21:10:52,623 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 70693 transitions. Word has length 33 [2021-06-05 21:10:52,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:52,623 INFO L482 AbstractCegarLoop]: Abstraction has 13303 states and 70693 transitions. [2021-06-05 21:10:52,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:52,623 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 70693 transitions. [2021-06-05 21:10:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:52,650 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:52,650 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:52,650 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-06-05 21:10:52,650 INFO L430 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:52,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:52,650 INFO L82 PathProgramCache]: Analyzing trace with hash 689896397, now seen corresponding path program 325 times [2021-06-05 21:10:52,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:52,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246597496] [2021-06-05 21:10:52,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:52,887 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-06-05 21:10:52,887 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 21:10:52,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:52,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246597496] [2021-06-05 21:10:52,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246597496] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:52,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:52,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:52,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388854415] [2021-06-05 21:10:52,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:52,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:52,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:52,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:52,888 INFO L87 Difference]: Start difference. First operand 13303 states and 70693 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:53,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:53,106 INFO L93 Difference]: Finished difference Result 32084 states and 160745 transitions. [2021-06-05 21:10:53,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:53,107 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:53,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:53,206 INFO L225 Difference]: With dead ends: 32084 [2021-06-05 21:10:53,206 INFO L226 Difference]: Without dead ends: 31325 [2021-06-05 21:10:53,206 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 261.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:53,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31325 states. [2021-06-05 21:10:54,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31325 to 13489. [2021-06-05 21:10:54,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13489 states, 13488 states have (on average 5.304122182680902) internal successors, (71542), 13488 states have internal predecessors, (71542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:54,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 71542 transitions. [2021-06-05 21:10:54,470 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 71542 transitions. Word has length 33 [2021-06-05 21:10:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:54,470 INFO L482 AbstractCegarLoop]: Abstraction has 13489 states and 71542 transitions. [2021-06-05 21:10:54,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 71542 transitions. [2021-06-05 21:10:54,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:54,497 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:54,497 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:54,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-06-05 21:10:54,497 INFO L430 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:54,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:54,497 INFO L82 PathProgramCache]: Analyzing trace with hash 222567407, now seen corresponding path program 326 times [2021-06-05 21:10:54,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:54,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061621758] [2021-06-05 21:10:54,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:54,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:10:54,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:54,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061621758] [2021-06-05 21:10:54,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061621758] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:54,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:54,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:54,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957227738] [2021-06-05 21:10:54,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:54,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:54,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:54,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:54,627 INFO L87 Difference]: Start difference. First operand 13489 states and 71542 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:54,854 INFO L93 Difference]: Finished difference Result 32090 states and 160638 transitions. [2021-06-05 21:10:54,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:54,855 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:54,950 INFO L225 Difference]: With dead ends: 32090 [2021-06-05 21:10:54,950 INFO L226 Difference]: Without dead ends: 31201 [2021-06-05 21:10:54,950 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31201 states. [2021-06-05 21:10:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31201 to 13365. [2021-06-05 21:10:56,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13365 states, 13364 states have (on average 5.3109847351092485) internal successors, (70976), 13364 states have internal predecessors, (70976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:56,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13365 states to 13365 states and 70976 transitions. [2021-06-05 21:10:56,144 INFO L78 Accepts]: Start accepts. Automaton has 13365 states and 70976 transitions. Word has length 33 [2021-06-05 21:10:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:56,144 INFO L482 AbstractCegarLoop]: Abstraction has 13365 states and 70976 transitions. [2021-06-05 21:10:56,144 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 13365 states and 70976 transitions. [2021-06-05 21:10:56,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:56,171 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:56,171 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:56,171 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-06-05 21:10:56,171 INFO L430 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:56,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:56,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1895469137, now seen corresponding path program 327 times [2021-06-05 21:10:56,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:56,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786235396] [2021-06-05 21:10:56,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:56,303 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 21:10:56,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:56,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786235396] [2021-06-05 21:10:56,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786235396] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:56,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:56,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:56,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769370752] [2021-06-05 21:10:56,303 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:56,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:56,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:56,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:56,303 INFO L87 Difference]: Start difference. First operand 13365 states and 70976 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:56,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:56,530 INFO L93 Difference]: Finished difference Result 32082 states and 160678 transitions. [2021-06-05 21:10:56,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:56,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:56,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:56,631 INFO L225 Difference]: With dead ends: 32082 [2021-06-05 21:10:56,631 INFO L226 Difference]: Without dead ends: 31323 [2021-06-05 21:10:56,631 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:57,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31323 states. [2021-06-05 21:10:57,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31323 to 13489. [2021-06-05 21:10:57,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13489 states, 13488 states have (on average 5.2995255041518385) internal successors, (71480), 13488 states have internal predecessors, (71480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 71480 transitions. [2021-06-05 21:10:57,853 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 71480 transitions. Word has length 33 [2021-06-05 21:10:57,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:57,853 INFO L482 AbstractCegarLoop]: Abstraction has 13489 states and 71480 transitions. [2021-06-05 21:10:57,853 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:57,853 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 71480 transitions. [2021-06-05 21:10:57,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:57,882 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:57,882 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:57,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-06-05 21:10:57,883 INFO L430 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:57,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:57,883 INFO L82 PathProgramCache]: Analyzing trace with hash 948888431, now seen corresponding path program 328 times [2021-06-05 21:10:57,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:57,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991953417] [2021-06-05 21:10:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:58,025 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 21:10:58,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:58,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991953417] [2021-06-05 21:10:58,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991953417] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:58,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:58,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:58,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591806847] [2021-06-05 21:10:58,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:58,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:58,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:58,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:58,025 INFO L87 Difference]: Start difference. First operand 13489 states and 71480 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:58,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:58,257 INFO L93 Difference]: Finished difference Result 32086 states and 160566 transitions. [2021-06-05 21:10:58,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:58,257 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:10:58,356 INFO L225 Difference]: With dead ends: 32086 [2021-06-05 21:10:58,357 INFO L226 Difference]: Without dead ends: 31199 [2021-06-05 21:10:58,357 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:10:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31199 states. [2021-06-05 21:10:59,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31199 to 13365. [2021-06-05 21:10:59,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13365 states, 13364 states have (on average 5.306345405567195) internal successors, (70914), 13364 states have internal predecessors, (70914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13365 states to 13365 states and 70914 transitions. [2021-06-05 21:10:59,563 INFO L78 Accepts]: Start accepts. Automaton has 13365 states and 70914 transitions. Word has length 33 [2021-06-05 21:10:59,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:10:59,563 INFO L482 AbstractCegarLoop]: Abstraction has 13365 states and 70914 transitions. [2021-06-05 21:10:59,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand 13365 states and 70914 transitions. [2021-06-05 21:10:59,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:10:59,589 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:10:59,589 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:10:59,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-06-05 21:10:59,589 INFO L430 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:10:59,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:10:59,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1079481105, now seen corresponding path program 329 times [2021-06-05 21:10:59,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:10:59,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788608618] [2021-06-05 21:10:59,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:10:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:10:59,729 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 21:10:59,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:10:59,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788608618] [2021-06-05 21:10:59,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788608618] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:10:59,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:10:59,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:10:59,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609085438] [2021-06-05 21:10:59,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:10:59,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:10:59,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:10:59,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:10:59,730 INFO L87 Difference]: Start difference. First operand 13365 states and 70914 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:10:59,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:10:59,968 INFO L93 Difference]: Finished difference Result 32096 states and 160657 transitions. [2021-06-05 21:10:59,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:10:59,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:10:59,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:00,065 INFO L225 Difference]: With dead ends: 32096 [2021-06-05 21:11:00,066 INFO L226 Difference]: Without dead ends: 31331 [2021-06-05 21:11:00,066 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:00,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31331 states. [2021-06-05 21:11:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31331 to 13491. [2021-06-05 21:11:01,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13491 states, 13490 states have (on average 5.2945144551519645) internal successors, (71423), 13490 states have internal predecessors, (71423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71423 transitions. [2021-06-05 21:11:01,255 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71423 transitions. Word has length 33 [2021-06-05 21:11:01,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:01,255 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71423 transitions. [2021-06-05 21:11:01,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:01,255 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71423 transitions. [2021-06-05 21:11:01,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:01,282 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:01,282 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:01,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-06-05 21:11:01,282 INFO L430 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:01,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:01,282 INFO L82 PathProgramCache]: Analyzing trace with hash 232684143, now seen corresponding path program 330 times [2021-06-05 21:11:01,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:01,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318395243] [2021-06-05 21:11:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:01,417 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 21:11:01,417 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:01,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318395243] [2021-06-05 21:11:01,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318395243] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:01,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:01,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:01,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5107044] [2021-06-05 21:11:01,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:01,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:01,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:01,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:01,417 INFO L87 Difference]: Start difference. First operand 13491 states and 71423 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:01,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:01,807 INFO L93 Difference]: Finished difference Result 32094 states and 160526 transitions. [2021-06-05 21:11:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:01,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:01,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:01,902 INFO L225 Difference]: With dead ends: 32094 [2021-06-05 21:11:01,902 INFO L226 Difference]: Without dead ends: 31143 [2021-06-05 21:11:01,902 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:02,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31143 states. [2021-06-05 21:11:02,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31143 to 13303. [2021-06-05 21:11:02,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13303 states, 13302 states have (on average 5.312133513757329) internal successors, (70662), 13302 states have internal predecessors, (70662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 70662 transitions. [2021-06-05 21:11:02,961 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 70662 transitions. Word has length 33 [2021-06-05 21:11:02,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:02,961 INFO L482 AbstractCegarLoop]: Abstraction has 13303 states and 70662 transitions. [2021-06-05 21:11:02,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:02,961 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 70662 transitions. [2021-06-05 21:11:02,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:02,987 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:02,988 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:02,988 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-06-05 21:11:02,988 INFO L430 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:02,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:02,988 INFO L82 PathProgramCache]: Analyzing trace with hash -2075227375, now seen corresponding path program 331 times [2021-06-05 21:11:02,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:02,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989573296] [2021-06-05 21:11:02,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:03,119 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 21:11:03,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:03,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989573296] [2021-06-05 21:11:03,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989573296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:03,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:03,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:03,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124820092] [2021-06-05 21:11:03,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:03,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:03,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:03,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:03,120 INFO L87 Difference]: Start difference. First operand 13303 states and 70662 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:03,447 INFO L93 Difference]: Finished difference Result 32914 states and 164434 transitions. [2021-06-05 21:11:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:03,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:03,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:03,546 INFO L225 Difference]: With dead ends: 32914 [2021-06-05 21:11:03,546 INFO L226 Difference]: Without dead ends: 32020 [2021-06-05 21:11:03,546 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 138.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:04,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32020 states. [2021-06-05 21:11:04,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32020 to 13717. [2021-06-05 21:11:04,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13717 states, 13716 states have (on average 5.283318751822689) internal successors, (72466), 13716 states have internal predecessors, (72466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:04,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13717 states to 13717 states and 72466 transitions. [2021-06-05 21:11:04,800 INFO L78 Accepts]: Start accepts. Automaton has 13717 states and 72466 transitions. Word has length 33 [2021-06-05 21:11:04,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:04,800 INFO L482 AbstractCegarLoop]: Abstraction has 13717 states and 72466 transitions. [2021-06-05 21:11:04,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:04,800 INFO L276 IsEmpty]: Start isEmpty. Operand 13717 states and 72466 transitions. [2021-06-05 21:11:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:04,830 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:04,830 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:04,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-06-05 21:11:04,830 INFO L430 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:04,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:04,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1372942959, now seen corresponding path program 332 times [2021-06-05 21:11:04,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:04,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888110001] [2021-06-05 21:11:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:04,960 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 21:11:04,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:04,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888110001] [2021-06-05 21:11:04,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888110001] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:04,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:04,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:04,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004011917] [2021-06-05 21:11:04,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:04,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:04,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:04,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:04,961 INFO L87 Difference]: Start difference. First operand 13717 states and 72466 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:05,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:05,202 INFO L93 Difference]: Finished difference Result 32785 states and 163665 transitions. [2021-06-05 21:11:05,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:05,202 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:05,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:05,298 INFO L225 Difference]: With dead ends: 32785 [2021-06-05 21:11:05,299 INFO L226 Difference]: Without dead ends: 31765 [2021-06-05 21:11:05,299 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:06,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31765 states. [2021-06-05 21:11:06,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31765 to 13462. [2021-06-05 21:11:06,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13462 states, 13461 states have (on average 5.297971918876755) internal successors, (71316), 13461 states have internal predecessors, (71316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:06,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13462 states to 13462 states and 71316 transitions. [2021-06-05 21:11:06,524 INFO L78 Accepts]: Start accepts. Automaton has 13462 states and 71316 transitions. Word has length 33 [2021-06-05 21:11:06,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:06,524 INFO L482 AbstractCegarLoop]: Abstraction has 13462 states and 71316 transitions. [2021-06-05 21:11:06,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:06,524 INFO L276 IsEmpty]: Start isEmpty. Operand 13462 states and 71316 transitions. [2021-06-05 21:11:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:06,550 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:06,550 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:06,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-06-05 21:11:06,550 INFO L430 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:06,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:06,550 INFO L82 PathProgramCache]: Analyzing trace with hash 196678383, now seen corresponding path program 333 times [2021-06-05 21:11:06,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:06,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056554828] [2021-06-05 21:11:06,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:11:06,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:06,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056554828] [2021-06-05 21:11:06,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056554828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:06,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:06,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:06,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711932580] [2021-06-05 21:11:06,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:06,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:06,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:06,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:06,682 INFO L87 Difference]: Start difference. First operand 13462 states and 71316 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:06,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:06,895 INFO L93 Difference]: Finished difference Result 32847 states and 164043 transitions. [2021-06-05 21:11:06,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:06,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:06,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:06,999 INFO L225 Difference]: With dead ends: 32847 [2021-06-05 21:11:06,999 INFO L226 Difference]: Without dead ends: 31953 [2021-06-05 21:11:06,999 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 140.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:07,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31953 states. [2021-06-05 21:11:08,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31953 to 13652. [2021-06-05 21:11:08,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13652 states, 13651 states have (on average 5.280272507508608) internal successors, (72081), 13651 states have internal predecessors, (72081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:08,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13652 states to 13652 states and 72081 transitions. [2021-06-05 21:11:08,237 INFO L78 Accepts]: Start accepts. Automaton has 13652 states and 72081 transitions. Word has length 33 [2021-06-05 21:11:08,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:08,237 INFO L482 AbstractCegarLoop]: Abstraction has 13652 states and 72081 transitions. [2021-06-05 21:11:08,237 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:08,237 INFO L276 IsEmpty]: Start isEmpty. Operand 13652 states and 72081 transitions. [2021-06-05 21:11:08,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:08,265 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:08,265 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:08,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-06-05 21:11:08,265 INFO L430 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:08,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:08,265 INFO L82 PathProgramCache]: Analyzing trace with hash -599348497, now seen corresponding path program 334 times [2021-06-05 21:11:08,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:08,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245866816] [2021-06-05 21:11:08,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:08,396 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 21:11:08,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:08,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245866816] [2021-06-05 21:11:08,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245866816] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:08,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:08,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:08,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522269724] [2021-06-05 21:11:08,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:08,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:08,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:08,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:08,397 INFO L87 Difference]: Start difference. First operand 13652 states and 72081 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:08,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:08,655 INFO L93 Difference]: Finished difference Result 32716 states and 163270 transitions. [2021-06-05 21:11:08,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:08,655 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:08,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:08,757 INFO L225 Difference]: With dead ends: 32716 [2021-06-05 21:11:08,757 INFO L226 Difference]: Without dead ends: 31763 [2021-06-05 21:11:08,757 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:09,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31763 states. [2021-06-05 21:11:09,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31763 to 13462. [2021-06-05 21:11:09,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13462 states, 13461 states have (on average 5.290914493722606) internal successors, (71221), 13461 states have internal predecessors, (71221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:10,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13462 states to 13462 states and 71221 transitions. [2021-06-05 21:11:10,029 INFO L78 Accepts]: Start accepts. Automaton has 13462 states and 71221 transitions. Word has length 33 [2021-06-05 21:11:10,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:10,029 INFO L482 AbstractCegarLoop]: Abstraction has 13462 states and 71221 transitions. [2021-06-05 21:11:10,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:10,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13462 states and 71221 transitions. [2021-06-05 21:11:10,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:10,058 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:10,058 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:10,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-06-05 21:11:10,058 INFO L430 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:10,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:10,058 INFO L82 PathProgramCache]: Analyzing trace with hash -660069683, now seen corresponding path program 335 times [2021-06-05 21:11:10,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:10,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190798539] [2021-06-05 21:11:10,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:10,189 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 21:11:10,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:10,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190798539] [2021-06-05 21:11:10,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190798539] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:10,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:10,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:10,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751965766] [2021-06-05 21:11:10,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:10,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:10,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:10,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:10,190 INFO L87 Difference]: Start difference. First operand 13462 states and 71221 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:10,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:10,424 INFO L93 Difference]: Finished difference Result 32525 states and 162472 transitions. [2021-06-05 21:11:10,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:10,424 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:10,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:10,524 INFO L225 Difference]: With dead ends: 32525 [2021-06-05 21:11:10,524 INFO L226 Difference]: Without dead ends: 31760 [2021-06-05 21:11:10,524 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:11,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31760 states. [2021-06-05 21:11:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31760 to 13588. [2021-06-05 21:11:11,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13588 states, 13587 states have (on average 5.27931110620446) internal successors, (71730), 13587 states have internal predecessors, (71730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:11,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13588 states to 13588 states and 71730 transitions. [2021-06-05 21:11:11,710 INFO L78 Accepts]: Start accepts. Automaton has 13588 states and 71730 transitions. Word has length 33 [2021-06-05 21:11:11,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:11,710 INFO L482 AbstractCegarLoop]: Abstraction has 13588 states and 71730 transitions. [2021-06-05 21:11:11,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:11,711 INFO L276 IsEmpty]: Start isEmpty. Operand 13588 states and 71730 transitions. [2021-06-05 21:11:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:11,738 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:11,738 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:11,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-06-05 21:11:11,738 INFO L430 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:11,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:11,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1140971729, now seen corresponding path program 336 times [2021-06-05 21:11:11,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:11,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106836322] [2021-06-05 21:11:11,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:11,868 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 21:11:11,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:11,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106836322] [2021-06-05 21:11:11,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106836322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:11,868 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:11,868 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:11,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510025278] [2021-06-05 21:11:11,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:11,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:11,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:11,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:11,868 INFO L87 Difference]: Start difference. First operand 13588 states and 71730 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:12,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:12,234 INFO L93 Difference]: Finished difference Result 32523 states and 162341 transitions. [2021-06-05 21:11:12,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:12,234 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:12,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:12,334 INFO L225 Difference]: With dead ends: 32523 [2021-06-05 21:11:12,334 INFO L226 Difference]: Without dead ends: 31380 [2021-06-05 21:11:12,335 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:13,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31380 states. [2021-06-05 21:11:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31380 to 13208. [2021-06-05 21:11:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13208 states, 13207 states have (on average 5.321420458847581) internal successors, (70280), 13207 states have internal predecessors, (70280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:13,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70280 transitions. [2021-06-05 21:11:13,401 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70280 transitions. Word has length 33 [2021-06-05 21:11:13,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:13,401 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70280 transitions. [2021-06-05 21:11:13,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:13,401 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70280 transitions. [2021-06-05 21:11:13,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:13,429 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:13,429 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:13,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-06-05 21:11:13,429 INFO L430 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:13,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:13,429 INFO L82 PathProgramCache]: Analyzing trace with hash -2088055181, now seen corresponding path program 337 times [2021-06-05 21:11:13,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:13,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105608971] [2021-06-05 21:11:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:13,699 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-06-05 21:11:13,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:11:13,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:13,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105608971] [2021-06-05 21:11:13,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105608971] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:13,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:13,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:13,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710576700] [2021-06-05 21:11:13,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:13,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:13,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:13,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:13,700 INFO L87 Difference]: Start difference. First operand 13208 states and 70280 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:13,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:13,938 INFO L93 Difference]: Finished difference Result 32584 states and 163211 transitions. [2021-06-05 21:11:13,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:13,938 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:13,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:14,040 INFO L225 Difference]: With dead ends: 32584 [2021-06-05 21:11:14,041 INFO L226 Difference]: Without dead ends: 31833 [2021-06-05 21:11:14,041 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 295.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:14,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31833 states. [2021-06-05 21:11:15,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31833 to 13594. [2021-06-05 21:11:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13594 states, 13593 states have (on average 5.309423968218936) internal successors, (72171), 13593 states have internal predecessors, (72171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13594 states to 13594 states and 72171 transitions. [2021-06-05 21:11:15,296 INFO L78 Accepts]: Start accepts. Automaton has 13594 states and 72171 transitions. Word has length 33 [2021-06-05 21:11:15,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:15,296 INFO L482 AbstractCegarLoop]: Abstraction has 13594 states and 72171 transitions. [2021-06-05 21:11:15,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:15,296 INFO L276 IsEmpty]: Start isEmpty. Operand 13594 states and 72171 transitions. [2021-06-05 21:11:15,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:15,328 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:15,329 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:15,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-06-05 21:11:15,329 INFO L430 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:15,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:15,329 INFO L82 PathProgramCache]: Analyzing trace with hash 385876689, now seen corresponding path program 338 times [2021-06-05 21:11:15,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:15,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199167933] [2021-06-05 21:11:15,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:15,491 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 21:11:15,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:15,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199167933] [2021-06-05 21:11:15,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199167933] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:15,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:15,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:15,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189833909] [2021-06-05 21:11:15,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:15,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:15,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:15,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:15,492 INFO L87 Difference]: Start difference. First operand 13594 states and 72171 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:15,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:15,716 INFO L93 Difference]: Finished difference Result 32727 states and 163714 transitions. [2021-06-05 21:11:15,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:15,716 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:15,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:15,831 INFO L225 Difference]: With dead ends: 32727 [2021-06-05 21:11:15,831 INFO L226 Difference]: Without dead ends: 31649 [2021-06-05 21:11:15,832 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:16,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31649 states. [2021-06-05 21:11:16,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31649 to 13410. [2021-06-05 21:11:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13410 states, 13409 states have (on average 5.3148631516145874) internal successors, (71267), 13409 states have internal predecessors, (71267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:17,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13410 states to 13410 states and 71267 transitions. [2021-06-05 21:11:17,059 INFO L78 Accepts]: Start accepts. Automaton has 13410 states and 71267 transitions. Word has length 33 [2021-06-05 21:11:17,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:17,059 INFO L482 AbstractCegarLoop]: Abstraction has 13410 states and 71267 transitions. [2021-06-05 21:11:17,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:17,059 INFO L276 IsEmpty]: Start isEmpty. Operand 13410 states and 71267 transitions. [2021-06-05 21:11:17,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:17,086 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:17,086 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:17,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-06-05 21:11:17,087 INFO L430 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:17,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:17,087 INFO L82 PathProgramCache]: Analyzing trace with hash 183850577, now seen corresponding path program 339 times [2021-06-05 21:11:17,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:17,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024471351] [2021-06-05 21:11:17,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:17,242 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 21:11:17,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:17,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024471351] [2021-06-05 21:11:17,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024471351] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:17,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:17,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:17,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996242948] [2021-06-05 21:11:17,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:17,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:17,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:17,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:17,243 INFO L87 Difference]: Start difference. First operand 13410 states and 71267 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:17,487 INFO L93 Difference]: Finished difference Result 32391 states and 162221 transitions. [2021-06-05 21:11:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:17,487 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:17,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:17,580 INFO L225 Difference]: With dead ends: 32391 [2021-06-05 21:11:17,580 INFO L226 Difference]: Without dead ends: 31640 [2021-06-05 21:11:17,581 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:18,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31640 states. [2021-06-05 21:11:18,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31640 to 13530. [2021-06-05 21:11:18,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 13529 states have (on average 5.304087515707) internal successors, (71759), 13529 states have internal predecessors, (71759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 71759 transitions. [2021-06-05 21:11:18,797 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 71759 transitions. Word has length 33 [2021-06-05 21:11:18,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:18,797 INFO L482 AbstractCegarLoop]: Abstraction has 13530 states and 71759 transitions. [2021-06-05 21:11:18,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 71759 transitions. [2021-06-05 21:11:18,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:18,827 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:18,827 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:18,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-06-05 21:11:18,828 INFO L430 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:18,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:18,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1586414767, now seen corresponding path program 340 times [2021-06-05 21:11:18,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:18,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524764294] [2021-06-05 21:11:18,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:18,992 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 21:11:18,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:18,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524764294] [2021-06-05 21:11:18,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524764294] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:18,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:18,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:18,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063748669] [2021-06-05 21:11:18,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:18,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:18,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:18,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:18,993 INFO L87 Difference]: Start difference. First operand 13530 states and 71759 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:19,219 INFO L93 Difference]: Finished difference Result 32405 states and 162146 transitions. [2021-06-05 21:11:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:19,219 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:19,315 INFO L225 Difference]: With dead ends: 32405 [2021-06-05 21:11:19,315 INFO L226 Difference]: Without dead ends: 31520 [2021-06-05 21:11:19,315 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 193.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:20,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31520 states. [2021-06-05 21:11:20,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31520 to 13410. [2021-06-05 21:11:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13410 states, 13409 states have (on average 5.3103885450070845) internal successors, (71207), 13409 states have internal predecessors, (71207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13410 states to 13410 states and 71207 transitions. [2021-06-05 21:11:20,536 INFO L78 Accepts]: Start accepts. Automaton has 13410 states and 71207 transitions. Word has length 33 [2021-06-05 21:11:20,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:20,536 INFO L482 AbstractCegarLoop]: Abstraction has 13410 states and 71207 transitions. [2021-06-05 21:11:20,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 13410 states and 71207 transitions. [2021-06-05 21:11:20,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:20,562 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:20,562 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:20,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-06-05 21:11:20,562 INFO L430 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:20,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:20,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1587429329, now seen corresponding path program 341 times [2021-06-05 21:11:20,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:20,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929328312] [2021-06-05 21:11:20,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:20,710 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 21:11:20,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:20,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929328312] [2021-06-05 21:11:20,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929328312] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:20,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:20,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:20,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020440646] [2021-06-05 21:11:20,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:20,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:20,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:20,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:20,711 INFO L87 Difference]: Start difference. First operand 13410 states and 71207 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:20,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:20,930 INFO L93 Difference]: Finished difference Result 32812 states and 164009 transitions. [2021-06-05 21:11:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:20,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:20,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:21,273 INFO L225 Difference]: With dead ends: 32812 [2021-06-05 21:11:21,274 INFO L226 Difference]: Without dead ends: 31918 [2021-06-05 21:11:21,274 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:21,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31918 states. [2021-06-05 21:11:22,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31918 to 13665. [2021-06-05 21:11:22,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13665 states, 13664 states have (on average 5.2861533957845435) internal successors, (72230), 13664 states have internal predecessors, (72230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13665 states to 13665 states and 72230 transitions. [2021-06-05 21:11:22,325 INFO L78 Accepts]: Start accepts. Automaton has 13665 states and 72230 transitions. Word has length 33 [2021-06-05 21:11:22,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:22,326 INFO L482 AbstractCegarLoop]: Abstraction has 13665 states and 72230 transitions. [2021-06-05 21:11:22,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:22,326 INFO L276 IsEmpty]: Start isEmpty. Operand 13665 states and 72230 transitions. [2021-06-05 21:11:22,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:22,354 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:22,354 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:22,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-06-05 21:11:22,354 INFO L430 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:22,354 INFO L82 PathProgramCache]: Analyzing trace with hash -2068331375, now seen corresponding path program 342 times [2021-06-05 21:11:22,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:22,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845538415] [2021-06-05 21:11:22,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:22,498 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 21:11:22,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:22,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845538415] [2021-06-05 21:11:22,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845538415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:22,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:22,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:22,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659754855] [2021-06-05 21:11:22,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:22,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:22,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:22,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:22,499 INFO L87 Difference]: Start difference. First operand 13665 states and 72230 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:22,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:22,912 INFO L93 Difference]: Finished difference Result 32683 states and 163240 transitions. [2021-06-05 21:11:22,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:22,913 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:22,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:23,014 INFO L225 Difference]: With dead ends: 32683 [2021-06-05 21:11:23,014 INFO L226 Difference]: Without dead ends: 31539 [2021-06-05 21:11:23,014 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:23,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31539 states. [2021-06-05 21:11:24,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31539 to 13286. [2021-06-05 21:11:24,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13286 states, 13285 states have (on average 5.317350395182537) internal successors, (70641), 13285 states have internal predecessors, (70641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:24,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 70641 transitions. [2021-06-05 21:11:24,088 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 70641 transitions. Word has length 33 [2021-06-05 21:11:24,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:24,089 INFO L482 AbstractCegarLoop]: Abstraction has 13286 states and 70641 transitions. [2021-06-05 21:11:24,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:24,089 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 70641 transitions. [2021-06-05 21:11:24,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:24,118 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:24,118 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:24,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-06-05 21:11:24,119 INFO L430 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:24,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:24,119 INFO L82 PathProgramCache]: Analyzing trace with hash -630008111, now seen corresponding path program 343 times [2021-06-05 21:11:24,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:24,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944028776] [2021-06-05 21:11:24,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:24,379 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 21:11:24,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:24,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944028776] [2021-06-05 21:11:24,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944028776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:24,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:24,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:24,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71820955] [2021-06-05 21:11:24,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:24,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:24,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:24,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:24,380 INFO L87 Difference]: Start difference. First operand 13286 states and 70641 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:24,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:24,610 INFO L93 Difference]: Finished difference Result 32485 states and 162741 transitions. [2021-06-05 21:11:24,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:24,610 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:24,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:24,708 INFO L225 Difference]: With dead ends: 32485 [2021-06-05 21:11:24,708 INFO L226 Difference]: Without dead ends: 31734 [2021-06-05 21:11:24,709 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:25,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31734 states. [2021-06-05 21:11:25,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31734 to 13562. [2021-06-05 21:11:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13562 states, 13561 states have (on average 5.306762038197773) internal successors, (71965), 13561 states have internal predecessors, (71965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:25,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13562 states to 13562 states and 71965 transitions. [2021-06-05 21:11:25,946 INFO L78 Accepts]: Start accepts. Automaton has 13562 states and 71965 transitions. Word has length 33 [2021-06-05 21:11:25,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:25,946 INFO L482 AbstractCegarLoop]: Abstraction has 13562 states and 71965 transitions. [2021-06-05 21:11:25,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 13562 states and 71965 transitions. [2021-06-05 21:11:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:25,974 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:25,974 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:25,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-06-05 21:11:25,974 INFO L430 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:25,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:25,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1843923759, now seen corresponding path program 344 times [2021-06-05 21:11:25,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:25,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134034869] [2021-06-05 21:11:25,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:26,119 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 21:11:26,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:26,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134034869] [2021-06-05 21:11:26,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134034869] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:26,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:26,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:26,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477472222] [2021-06-05 21:11:26,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:26,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:26,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:26,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:26,120 INFO L87 Difference]: Start difference. First operand 13562 states and 71965 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:26,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:26,331 INFO L93 Difference]: Finished difference Result 32628 states and 163244 transitions. [2021-06-05 21:11:26,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:26,331 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:26,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:26,432 INFO L225 Difference]: With dead ends: 32628 [2021-06-05 21:11:26,433 INFO L226 Difference]: Without dead ends: 31550 [2021-06-05 21:11:26,433 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:27,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31550 states. [2021-06-05 21:11:27,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31550 to 13378. [2021-06-05 21:11:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13378 states, 13377 states have (on average 5.312177618300067) internal successors, (71061), 13377 states have internal predecessors, (71061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 71061 transitions. [2021-06-05 21:11:27,619 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 71061 transitions. Word has length 33 [2021-06-05 21:11:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:27,619 INFO L482 AbstractCegarLoop]: Abstraction has 13378 states and 71061 transitions. [2021-06-05 21:11:27,619 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:27,619 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 71061 transitions. [2021-06-05 21:11:27,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:27,646 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:27,646 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:27,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-06-05 21:11:27,646 INFO L430 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:27,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:27,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1107661103, now seen corresponding path program 345 times [2021-06-05 21:11:27,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:27,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899296175] [2021-06-05 21:11:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:27,775 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 21:11:27,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:27,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899296175] [2021-06-05 21:11:27,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899296175] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:27,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:27,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:27,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151788608] [2021-06-05 21:11:27,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:27,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:27,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:27,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:27,776 INFO L87 Difference]: Start difference. First operand 13378 states and 71061 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:28,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:28,012 INFO L93 Difference]: Finished difference Result 32290 states and 161746 transitions. [2021-06-05 21:11:28,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:28,012 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:28,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:28,123 INFO L225 Difference]: With dead ends: 32290 [2021-06-05 21:11:28,124 INFO L226 Difference]: Without dead ends: 31539 [2021-06-05 21:11:28,124 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:29,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31539 states. [2021-06-05 21:11:29,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31539 to 13498. [2021-06-05 21:11:29,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13498 states, 13497 states have (on average 5.301400311180262) internal successors, (71553), 13497 states have internal predecessors, (71553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:29,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13498 states to 13498 states and 71553 transitions. [2021-06-05 21:11:29,333 INFO L78 Accepts]: Start accepts. Automaton has 13498 states and 71553 transitions. Word has length 33 [2021-06-05 21:11:29,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:29,333 INFO L482 AbstractCegarLoop]: Abstraction has 13498 states and 71553 transitions. [2021-06-05 21:11:29,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 13498 states and 71553 transitions. [2021-06-05 21:11:29,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:29,360 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:29,360 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:29,360 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-06-05 21:11:29,360 INFO L430 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:29,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:29,361 INFO L82 PathProgramCache]: Analyzing trace with hash -545299503, now seen corresponding path program 346 times [2021-06-05 21:11:29,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:29,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871584066] [2021-06-05 21:11:29,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:29,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:11:29,490 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:29,490 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871584066] [2021-06-05 21:11:29,490 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871584066] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:29,490 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:29,490 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:29,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789533975] [2021-06-05 21:11:29,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:29,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:29,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:29,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:29,491 INFO L87 Difference]: Start difference. First operand 13498 states and 71553 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:29,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:29,726 INFO L93 Difference]: Finished difference Result 32302 states and 161666 transitions. [2021-06-05 21:11:29,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:29,727 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:29,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:29,829 INFO L225 Difference]: With dead ends: 32302 [2021-06-05 21:11:29,830 INFO L226 Difference]: Without dead ends: 31419 [2021-06-05 21:11:29,830 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:30,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31419 states. [2021-06-05 21:11:30,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31419 to 13378. [2021-06-05 21:11:31,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13378 states, 13377 states have (on average 5.3076923076923075) internal successors, (71001), 13377 states have internal predecessors, (71001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 71001 transitions. [2021-06-05 21:11:31,044 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 71001 transitions. Word has length 33 [2021-06-05 21:11:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:31,044 INFO L482 AbstractCegarLoop]: Abstraction has 13378 states and 71001 transitions. [2021-06-05 21:11:31,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:31,045 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 71001 transitions. [2021-06-05 21:11:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:31,072 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:31,072 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:31,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-06-05 21:11:31,072 INFO L430 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:31,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:31,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1416026287, now seen corresponding path program 347 times [2021-06-05 21:11:31,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:31,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661668402] [2021-06-05 21:11:31,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:31,202 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 21:11:31,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:31,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661668402] [2021-06-05 21:11:31,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661668402] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:31,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:31,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:31,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113008237] [2021-06-05 21:11:31,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:31,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:31,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:31,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:31,203 INFO L87 Difference]: Start difference. First operand 13378 states and 71001 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:31,405 INFO L93 Difference]: Finished difference Result 32646 states and 163275 transitions. [2021-06-05 21:11:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:31,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:31,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:31,501 INFO L225 Difference]: With dead ends: 32646 [2021-06-05 21:11:31,501 INFO L226 Difference]: Without dead ends: 31752 [2021-06-05 21:11:31,502 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 136.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:32,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31752 states. [2021-06-05 21:11:32,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31752 to 13568. [2021-06-05 21:11:32,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13568 states, 13567 states have (on average 5.289747180658952) internal successors, (71766), 13567 states have internal predecessors, (71766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13568 states to 13568 states and 71766 transitions. [2021-06-05 21:11:32,719 INFO L78 Accepts]: Start accepts. Automaton has 13568 states and 71766 transitions. Word has length 33 [2021-06-05 21:11:32,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:32,719 INFO L482 AbstractCegarLoop]: Abstraction has 13568 states and 71766 transitions. [2021-06-05 21:11:32,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:32,719 INFO L276 IsEmpty]: Start isEmpty. Operand 13568 states and 71766 transitions. [2021-06-05 21:11:32,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:32,747 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:32,747 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:32,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-06-05 21:11:32,747 INFO L430 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:32,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:32,747 INFO L82 PathProgramCache]: Analyzing trace with hash 242066577, now seen corresponding path program 348 times [2021-06-05 21:11:32,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:32,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622829308] [2021-06-05 21:11:32,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:32,877 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 21:11:32,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:32,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622829308] [2021-06-05 21:11:32,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622829308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:32,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:32,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:32,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403242772] [2021-06-05 21:11:32,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:32,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:32,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:32,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:32,878 INFO L87 Difference]: Start difference. First operand 13568 states and 71766 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:33,235 INFO L93 Difference]: Finished difference Result 32515 states and 162502 transitions. [2021-06-05 21:11:33,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:33,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:33,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:33,334 INFO L225 Difference]: With dead ends: 32515 [2021-06-05 21:11:33,334 INFO L226 Difference]: Without dead ends: 31470 [2021-06-05 21:11:33,334 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:34,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31470 states. [2021-06-05 21:11:34,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31470 to 13286. [2021-06-05 21:11:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13286 states, 13285 states have (on average 5.313887843432442) internal successors, (70595), 13285 states have internal predecessors, (70595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:34,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 70595 transitions. [2021-06-05 21:11:34,447 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 70595 transitions. Word has length 33 [2021-06-05 21:11:34,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:34,447 INFO L482 AbstractCegarLoop]: Abstraction has 13286 states and 70595 transitions. [2021-06-05 21:11:34,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:34,447 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 70595 transitions. [2021-06-05 21:11:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:34,474 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:34,475 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:34,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-06-05 21:11:34,475 INFO L430 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:34,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:34,475 INFO L82 PathProgramCache]: Analyzing trace with hash 668821295, now seen corresponding path program 349 times [2021-06-05 21:11:34,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:34,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663945797] [2021-06-05 21:11:34,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:34,734 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 21:11:34,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:34,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663945797] [2021-06-05 21:11:34,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663945797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:34,734 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:34,734 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:34,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121388009] [2021-06-05 21:11:34,734 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:34,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:34,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:34,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:34,734 INFO L87 Difference]: Start difference. First operand 13286 states and 70595 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:34,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:34,979 INFO L93 Difference]: Finished difference Result 32003 states and 160403 transitions. [2021-06-05 21:11:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:34,979 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:34,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:35,081 INFO L225 Difference]: With dead ends: 32003 [2021-06-05 21:11:35,081 INFO L226 Difference]: Without dead ends: 31252 [2021-06-05 21:11:35,082 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 287.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31252 states. [2021-06-05 21:11:36,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31252 to 13466. [2021-06-05 21:11:36,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13466 states, 13465 states have (on average 5.304344597103602) internal successors, (71423), 13465 states have internal predecessors, (71423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:36,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71423 transitions. [2021-06-05 21:11:36,316 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71423 transitions. Word has length 33 [2021-06-05 21:11:36,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:36,316 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71423 transitions. [2021-06-05 21:11:36,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71423 transitions. [2021-06-05 21:11:36,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:36,341 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:36,341 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:36,342 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-06-05 21:11:36,342 INFO L430 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:36,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:36,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1101444049, now seen corresponding path program 350 times [2021-06-05 21:11:36,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:36,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802596150] [2021-06-05 21:11:36,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:36,485 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 21:11:36,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:36,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802596150] [2021-06-05 21:11:36,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802596150] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:36,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:36,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:36,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643377202] [2021-06-05 21:11:36,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:36,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:36,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:36,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:36,486 INFO L87 Difference]: Start difference. First operand 13466 states and 71423 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:36,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:36,710 INFO L93 Difference]: Finished difference Result 32017 states and 160328 transitions. [2021-06-05 21:11:36,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:36,710 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:36,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:36,807 INFO L225 Difference]: With dead ends: 32017 [2021-06-05 21:11:36,807 INFO L226 Difference]: Without dead ends: 31132 [2021-06-05 21:11:36,808 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:37,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31132 states. [2021-06-05 21:11:37,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31132 to 13346. [2021-06-05 21:11:37,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.310678156612964) internal successors, (70871), 13345 states have internal predecessors, (70871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:38,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70871 transitions. [2021-06-05 21:11:38,005 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70871 transitions. Word has length 33 [2021-06-05 21:11:38,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:38,005 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70871 transitions. [2021-06-05 21:11:38,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:38,005 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70871 transitions. [2021-06-05 21:11:38,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:38,030 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:38,030 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:38,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-06-05 21:11:38,030 INFO L430 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:38,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:38,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1916544239, now seen corresponding path program 351 times [2021-06-05 21:11:38,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:38,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277131903] [2021-06-05 21:11:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:38,158 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 21:11:38,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:38,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277131903] [2021-06-05 21:11:38,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277131903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:38,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:38,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:38,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008811849] [2021-06-05 21:11:38,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:38,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:38,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:38,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:38,159 INFO L87 Difference]: Start difference. First operand 13346 states and 70871 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:38,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:38,384 INFO L93 Difference]: Finished difference Result 32001 states and 160338 transitions. [2021-06-05 21:11:38,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:38,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:38,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:38,478 INFO L225 Difference]: With dead ends: 32001 [2021-06-05 21:11:38,478 INFO L226 Difference]: Without dead ends: 31250 [2021-06-05 21:11:38,478 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:39,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31250 states. [2021-06-05 21:11:39,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31250 to 13466. [2021-06-05 21:11:39,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13466 states, 13465 states have (on average 5.299888600074267) internal successors, (71363), 13465 states have internal predecessors, (71363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:39,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71363 transitions. [2021-06-05 21:11:39,670 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71363 transitions. Word has length 33 [2021-06-05 21:11:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:39,670 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71363 transitions. [2021-06-05 21:11:39,670 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:39,670 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71363 transitions. [2021-06-05 21:11:39,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:39,697 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:39,697 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:39,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-06-05 21:11:39,697 INFO L430 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:39,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:39,698 INFO L82 PathProgramCache]: Analyzing trace with hash 912747567, now seen corresponding path program 352 times [2021-06-05 21:11:39,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:39,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211981892] [2021-06-05 21:11:39,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:39,845 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 21:11:39,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:39,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211981892] [2021-06-05 21:11:39,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211981892] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:39,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:39,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:39,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315344464] [2021-06-05 21:11:39,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:39,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:39,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:39,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:39,846 INFO L87 Difference]: Start difference. First operand 13466 states and 71363 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:40,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:40,089 INFO L93 Difference]: Finished difference Result 32013 states and 160258 transitions. [2021-06-05 21:11:40,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:40,089 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:40,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:40,181 INFO L225 Difference]: With dead ends: 32013 [2021-06-05 21:11:40,181 INFO L226 Difference]: Without dead ends: 31130 [2021-06-05 21:11:40,181 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:41,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31130 states. [2021-06-05 21:11:41,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31130 to 13346. [2021-06-05 21:11:41,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13346 states, 13345 states have (on average 5.306182090670664) internal successors, (70811), 13345 states have internal predecessors, (70811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70811 transitions. [2021-06-05 21:11:41,377 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70811 transitions. Word has length 33 [2021-06-05 21:11:41,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:41,377 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70811 transitions. [2021-06-05 21:11:41,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:41,377 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70811 transitions. [2021-06-05 21:11:41,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:41,404 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:41,404 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:41,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-06-05 21:11:41,404 INFO L430 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:41,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:41,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1837825745, now seen corresponding path program 353 times [2021-06-05 21:11:41,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:41,404 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326999937] [2021-06-05 21:11:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:41,532 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 21:11:41,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:41,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326999937] [2021-06-05 21:11:41,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326999937] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:41,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:41,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:41,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627429880] [2021-06-05 21:11:41,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:41,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:41,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:41,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:41,533 INFO L87 Difference]: Start difference. First operand 13346 states and 70811 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:41,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:41,752 INFO L93 Difference]: Finished difference Result 32035 states and 160391 transitions. [2021-06-05 21:11:41,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:41,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:41,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:41,845 INFO L225 Difference]: With dead ends: 32035 [2021-06-05 21:11:41,845 INFO L226 Difference]: Without dead ends: 31270 [2021-06-05 21:11:41,845 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:42,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31270 states. [2021-06-05 21:11:42,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31270 to 13472. [2021-06-05 21:11:42,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13472 states, 13471 states have (on average 5.294335980996214) internal successors, (71320), 13471 states have internal predecessors, (71320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13472 states to 13472 states and 71320 transitions. [2021-06-05 21:11:43,026 INFO L78 Accepts]: Start accepts. Automaton has 13472 states and 71320 transitions. Word has length 33 [2021-06-05 21:11:43,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:43,026 INFO L482 AbstractCegarLoop]: Abstraction has 13472 states and 71320 transitions. [2021-06-05 21:11:43,026 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:43,026 INFO L276 IsEmpty]: Start isEmpty. Operand 13472 states and 71320 transitions. [2021-06-05 21:11:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:43,052 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:43,052 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:43,052 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-06-05 21:11:43,052 INFO L430 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:43,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:43,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1976239505, now seen corresponding path program 354 times [2021-06-05 21:11:43,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:43,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528075726] [2021-06-05 21:11:43,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:43,187 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 21:11:43,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:43,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528075726] [2021-06-05 21:11:43,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528075726] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:43,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:43,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:43,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105957474] [2021-06-05 21:11:43,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:43,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:43,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:43,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:43,188 INFO L87 Difference]: Start difference. First operand 13472 states and 71320 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:43,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:43,557 INFO L93 Difference]: Finished difference Result 32033 states and 160260 transitions. [2021-06-05 21:11:43,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:43,557 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:43,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:43,648 INFO L225 Difference]: With dead ends: 32033 [2021-06-05 21:11:43,648 INFO L226 Difference]: Without dead ends: 31084 [2021-06-05 21:11:43,648 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:44,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31084 states. [2021-06-05 21:11:44,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31084 to 13286. [2021-06-05 21:11:44,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13286 states, 13285 states have (on average 5.311629657508468) internal successors, (70565), 13285 states have internal predecessors, (70565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 70565 transitions. [2021-06-05 21:11:44,716 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 70565 transitions. Word has length 33 [2021-06-05 21:11:44,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:44,716 INFO L482 AbstractCegarLoop]: Abstraction has 13286 states and 70565 transitions. [2021-06-05 21:11:44,716 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:44,717 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 70565 transitions. [2021-06-05 21:11:44,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:44,743 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:44,743 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:44,743 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-06-05 21:11:44,743 INFO L430 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:44,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:44,743 INFO L82 PathProgramCache]: Analyzing trace with hash -532044147, now seen corresponding path program 355 times [2021-06-05 21:11:44,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:44,743 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304582772] [2021-06-05 21:11:44,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:44,956 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-05 21:11:44,981 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 21:11:44,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:44,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304582772] [2021-06-05 21:11:44,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304582772] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:44,982 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:44,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:44,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748084658] [2021-06-05 21:11:44,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:44,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:44,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:44,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:44,982 INFO L87 Difference]: Start difference. First operand 13286 states and 70565 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:45,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:45,182 INFO L93 Difference]: Finished difference Result 32871 states and 164234 transitions. [2021-06-05 21:11:45,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:45,182 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:45,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:45,281 INFO L225 Difference]: With dead ends: 32871 [2021-06-05 21:11:45,281 INFO L226 Difference]: Without dead ends: 31977 [2021-06-05 21:11:45,281 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 244.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:46,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31977 states. [2021-06-05 21:11:46,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31977 to 13700. [2021-06-05 21:11:46,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13700 states, 13699 states have (on average 5.282794364552157) internal successors, (72369), 13699 states have internal predecessors, (72369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:46,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13700 states to 13700 states and 72369 transitions. [2021-06-05 21:11:46,531 INFO L78 Accepts]: Start accepts. Automaton has 13700 states and 72369 transitions. Word has length 33 [2021-06-05 21:11:46,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:46,531 INFO L482 AbstractCegarLoop]: Abstraction has 13700 states and 72369 transitions. [2021-06-05 21:11:46,531 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 13700 states and 72369 transitions. [2021-06-05 21:11:46,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:46,558 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:46,558 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:46,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-06-05 21:11:46,558 INFO L430 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:46,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:46,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1012946193, now seen corresponding path program 356 times [2021-06-05 21:11:46,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:46,559 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507076996] [2021-06-05 21:11:46,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:11:46,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:46,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507076996] [2021-06-05 21:11:46,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507076996] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:46,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:46,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:46,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404367361] [2021-06-05 21:11:46,690 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:46,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:46,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:46,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:46,690 INFO L87 Difference]: Start difference. First operand 13700 states and 72369 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:46,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:46,922 INFO L93 Difference]: Finished difference Result 32742 states and 163465 transitions. [2021-06-05 21:11:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:46,922 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:46,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:47,015 INFO L225 Difference]: With dead ends: 32742 [2021-06-05 21:11:47,015 INFO L226 Difference]: Without dead ends: 31722 [2021-06-05 21:11:47,016 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:47,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31722 states. [2021-06-05 21:11:48,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31722 to 13445. [2021-06-05 21:11:48,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13445 states, 13444 states have (on average 5.297456114251711) internal successors, (71219), 13444 states have internal predecessors, (71219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:48,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 71219 transitions. [2021-06-05 21:11:48,206 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 71219 transitions. Word has length 33 [2021-06-05 21:11:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:48,206 INFO L482 AbstractCegarLoop]: Abstraction has 13445 states and 71219 transitions. [2021-06-05 21:11:48,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 71219 transitions. [2021-06-05 21:11:48,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:48,235 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:48,235 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:48,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-06-05 21:11:48,235 INFO L430 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:48,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:48,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1177557615, now seen corresponding path program 357 times [2021-06-05 21:11:48,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:48,235 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304176096] [2021-06-05 21:11:48,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:48,370 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 21:11:48,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:48,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304176096] [2021-06-05 21:11:48,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304176096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:48,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:48,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:48,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042318727] [2021-06-05 21:11:48,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:48,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:48,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:48,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:48,371 INFO L87 Difference]: Start difference. First operand 13445 states and 71219 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:48,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:48,581 INFO L93 Difference]: Finished difference Result 32804 states and 163843 transitions. [2021-06-05 21:11:48,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:48,581 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:48,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:48,674 INFO L225 Difference]: With dead ends: 32804 [2021-06-05 21:11:48,674 INFO L226 Difference]: Without dead ends: 31910 [2021-06-05 21:11:48,674 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 142.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31910 states. [2021-06-05 21:11:49,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31910 to 13635. [2021-06-05 21:11:49,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13635 states, 13634 states have (on average 5.279741821915799) internal successors, (71984), 13634 states have internal predecessors, (71984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:49,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13635 states to 13635 states and 71984 transitions. [2021-06-05 21:11:49,890 INFO L78 Accepts]: Start accepts. Automaton has 13635 states and 71984 transitions. Word has length 33 [2021-06-05 21:11:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:49,890 INFO L482 AbstractCegarLoop]: Abstraction has 13635 states and 71984 transitions. [2021-06-05 21:11:49,890 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 13635 states and 71984 transitions. [2021-06-05 21:11:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:49,920 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:49,920 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:49,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-06-05 21:11:49,920 INFO L430 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:49,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:49,920 INFO L82 PathProgramCache]: Analyzing trace with hash -2024439185, now seen corresponding path program 358 times [2021-06-05 21:11:49,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:49,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503151577] [2021-06-05 21:11:49,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:50,063 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 21:11:50,064 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:50,064 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503151577] [2021-06-05 21:11:50,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503151577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:50,064 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:50,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:50,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116808729] [2021-06-05 21:11:50,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:50,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:50,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:50,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:50,064 INFO L87 Difference]: Start difference. First operand 13635 states and 71984 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:50,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:50,304 INFO L93 Difference]: Finished difference Result 32673 states and 163070 transitions. [2021-06-05 21:11:50,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:50,304 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:50,405 INFO L225 Difference]: With dead ends: 32673 [2021-06-05 21:11:50,405 INFO L226 Difference]: Without dead ends: 31720 [2021-06-05 21:11:50,405 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31720 states. [2021-06-05 21:11:51,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31720 to 13445. [2021-06-05 21:11:51,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13445 states, 13444 states have (on average 5.290389764950907) internal successors, (71124), 13444 states have internal predecessors, (71124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:51,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 71124 transitions. [2021-06-05 21:11:51,589 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 71124 transitions. Word has length 33 [2021-06-05 21:11:51,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:51,589 INFO L482 AbstractCegarLoop]: Abstraction has 13445 states and 71124 transitions. [2021-06-05 21:11:51,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 71124 transitions. [2021-06-05 21:11:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:51,616 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:51,616 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:51,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-06-05 21:11:51,617 INFO L430 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:51,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:51,617 INFO L82 PathProgramCache]: Analyzing trace with hash 388171345, now seen corresponding path program 359 times [2021-06-05 21:11:51,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:51,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499676996] [2021-06-05 21:11:51,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:11:51,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:51,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499676996] [2021-06-05 21:11:51,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499676996] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:51,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:51,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:51,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938678455] [2021-06-05 21:11:51,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:51,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:51,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:51,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:51,748 INFO L87 Difference]: Start difference. First operand 13445 states and 71124 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:51,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:51,995 INFO L93 Difference]: Finished difference Result 32482 states and 162272 transitions. [2021-06-05 21:11:51,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:51,995 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:51,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:52,090 INFO L225 Difference]: With dead ends: 32482 [2021-06-05 21:11:52,090 INFO L226 Difference]: Without dead ends: 31717 [2021-06-05 21:11:52,090 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:52,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31717 states. [2021-06-05 21:11:53,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31717 to 13571. [2021-06-05 21:11:53,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13571 states, 13570 states have (on average 5.278776713338246) internal successors, (71633), 13570 states have internal predecessors, (71633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13571 states to 13571 states and 71633 transitions. [2021-06-05 21:11:53,276 INFO L78 Accepts]: Start accepts. Automaton has 13571 states and 71633 transitions. Word has length 33 [2021-06-05 21:11:53,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:53,276 INFO L482 AbstractCegarLoop]: Abstraction has 13571 states and 71633 transitions. [2021-06-05 21:11:53,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:53,276 INFO L276 IsEmpty]: Start isEmpty. Operand 13571 states and 71633 transitions. [2021-06-05 21:11:53,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:53,303 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:53,303 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:53,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-06-05 21:11:53,303 INFO L430 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:53,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:53,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1634890193, now seen corresponding path program 360 times [2021-06-05 21:11:53,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:53,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377155530] [2021-06-05 21:11:53,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:53,433 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 21:11:53,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:53,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377155530] [2021-06-05 21:11:53,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377155530] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:53,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:53,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:53,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93372325] [2021-06-05 21:11:53,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:53,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:53,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:53,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:53,434 INFO L87 Difference]: Start difference. First operand 13571 states and 71633 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:53,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:53,833 INFO L93 Difference]: Finished difference Result 32480 states and 162141 transitions. [2021-06-05 21:11:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:53,834 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:53,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:53,929 INFO L225 Difference]: With dead ends: 32480 [2021-06-05 21:11:53,930 INFO L226 Difference]: Without dead ends: 31299 [2021-06-05 21:11:53,930 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:54,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31299 states. [2021-06-05 21:11:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31299 to 13153. [2021-06-05 21:11:54,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13153 states, 13152 states have (on average 5.329227493917275) internal successors, (70090), 13152 states have internal predecessors, (70090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:55,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 70090 transitions. [2021-06-05 21:11:55,012 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 70090 transitions. Word has length 33 [2021-06-05 21:11:55,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:55,012 INFO L482 AbstractCegarLoop]: Abstraction has 13153 states and 70090 transitions. [2021-06-05 21:11:55,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:55,012 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 70090 transitions. [2021-06-05 21:11:55,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:55,039 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:55,039 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:55,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-06-05 21:11:55,039 INFO L430 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:55,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:55,039 INFO L82 PathProgramCache]: Analyzing trace with hash 677190829, now seen corresponding path program 361 times [2021-06-05 21:11:55,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:55,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312725990] [2021-06-05 21:11:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:55,242 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-05 21:11:55,267 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 21:11:55,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:55,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312725990] [2021-06-05 21:11:55,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312725990] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:55,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:55,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:55,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216196885] [2021-06-05 21:11:55,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:55,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:55,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:55,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:55,268 INFO L87 Difference]: Start difference. First operand 13153 states and 70090 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:55,507 INFO L93 Difference]: Finished difference Result 30141 states and 151826 transitions. [2021-06-05 21:11:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:55,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:55,594 INFO L225 Difference]: With dead ends: 30141 [2021-06-05 21:11:55,594 INFO L226 Difference]: Without dead ends: 29382 [2021-06-05 21:11:55,594 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 253.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:56,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29382 states. [2021-06-05 21:11:56,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29382 to 13371. [2021-06-05 21:11:56,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.3225878833208675) internal successors, (71163), 13370 states have internal predecessors, (71163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:56,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71163 transitions. [2021-06-05 21:11:56,831 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71163 transitions. Word has length 33 [2021-06-05 21:11:56,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:56,831 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71163 transitions. [2021-06-05 21:11:56,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:56,831 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71163 transitions. [2021-06-05 21:11:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:56,859 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:56,860 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:56,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-06-05 21:11:56,860 INFO L430 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:56,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:56,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1758253455, now seen corresponding path program 362 times [2021-06-05 21:11:56,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:56,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123562339] [2021-06-05 21:11:56,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:56,986 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 21:11:56,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:56,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123562339] [2021-06-05 21:11:56,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123562339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:56,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:56,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:56,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469671686] [2021-06-05 21:11:56,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:56,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:56,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:56,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:56,987 INFO L87 Difference]: Start difference. First operand 13371 states and 71163 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:57,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:57,196 INFO L93 Difference]: Finished difference Result 30133 states and 151678 transitions. [2021-06-05 21:11:57,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:57,196 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:57,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:57,285 INFO L225 Difference]: With dead ends: 30133 [2021-06-05 21:11:57,285 INFO L226 Difference]: Without dead ends: 29262 [2021-06-05 21:11:57,285 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29262 states. [2021-06-05 21:11:58,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29262 to 13251. [2021-06-05 21:11:58,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.329433962264151) internal successors, (70615), 13250 states have internal predecessors, (70615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70615 transitions. [2021-06-05 21:11:58,477 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70615 transitions. Word has length 33 [2021-06-05 21:11:58,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:11:58,477 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70615 transitions. [2021-06-05 21:11:58,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70615 transitions. [2021-06-05 21:11:58,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:11:58,505 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:11:58,505 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:11:58,506 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-06-05 21:11:58,506 INFO L430 AbstractCegarLoop]: === Iteration 370 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:11:58,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:11:58,506 INFO L82 PathProgramCache]: Analyzing trace with hash 196288783, now seen corresponding path program 363 times [2021-06-05 21:11:58,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:11:58,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251032581] [2021-06-05 21:11:58,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:11:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:11:58,635 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 21:11:58,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:11:58,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251032581] [2021-06-05 21:11:58,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251032581] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:11:58,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:11:58,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:11:58,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500520137] [2021-06-05 21:11:58,636 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:11:58,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:11:58,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:11:58,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:11:58,636 INFO L87 Difference]: Start difference. First operand 13251 states and 70615 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:11:58,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:11:58,863 INFO L93 Difference]: Finished difference Result 30117 states and 151670 transitions. [2021-06-05 21:11:58,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:11:58,863 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:11:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:11:58,950 INFO L225 Difference]: With dead ends: 30117 [2021-06-05 21:11:58,950 INFO L226 Difference]: Without dead ends: 29358 [2021-06-05 21:11:58,950 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:11:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29358 states. [2021-06-05 21:12:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29358 to 13363. [2021-06-05 21:12:00,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.319488100583745) internal successors, (71079), 13362 states have internal predecessors, (71079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71079 transitions. [2021-06-05 21:12:00,122 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71079 transitions. Word has length 33 [2021-06-05 21:12:00,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:00,123 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71079 transitions. [2021-06-05 21:12:00,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:00,123 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71079 transitions. [2021-06-05 21:12:00,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:00,148 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:00,148 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:00,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2021-06-05 21:12:00,149 INFO L430 AbstractCegarLoop]: === Iteration 371 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:00,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:00,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1491957489, now seen corresponding path program 364 times [2021-06-05 21:12:00,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:00,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383360771] [2021-06-05 21:12:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:00,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:00,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383360771] [2021-06-05 21:12:00,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383360771] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:00,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:00,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:00,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083491406] [2021-06-05 21:12:00,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:00,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:00,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:00,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:00,275 INFO L87 Difference]: Start difference. First operand 13363 states and 71079 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:00,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:00,491 INFO L93 Difference]: Finished difference Result 30093 states and 151466 transitions. [2021-06-05 21:12:00,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:00,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:00,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:00,578 INFO L225 Difference]: With dead ends: 30093 [2021-06-05 21:12:00,578 INFO L226 Difference]: Without dead ends: 29246 [2021-06-05 21:12:00,579 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29246 states. [2021-06-05 21:12:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29246 to 13251. [2021-06-05 21:12:01,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.3252075471698115) internal successors, (70559), 13250 states have internal predecessors, (70559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:01,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70559 transitions. [2021-06-05 21:12:01,731 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70559 transitions. Word has length 33 [2021-06-05 21:12:01,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:01,731 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70559 transitions. [2021-06-05 21:12:01,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70559 transitions. [2021-06-05 21:12:01,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:01,757 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:01,757 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:01,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2021-06-05 21:12:01,758 INFO L430 AbstractCegarLoop]: === Iteration 372 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:01,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:01,758 INFO L82 PathProgramCache]: Analyzing trace with hash 584293745, now seen corresponding path program 365 times [2021-06-05 21:12:01,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:01,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010416320] [2021-06-05 21:12:01,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:01,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:01,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010416320] [2021-06-05 21:12:01,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010416320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:01,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:01,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:01,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624197031] [2021-06-05 21:12:01,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:01,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:01,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:01,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:01,885 INFO L87 Difference]: Start difference. First operand 13251 states and 70559 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:02,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:02,107 INFO L93 Difference]: Finished difference Result 30101 states and 151558 transitions. [2021-06-05 21:12:02,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:02,107 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:02,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:02,194 INFO L225 Difference]: With dead ends: 30101 [2021-06-05 21:12:02,194 INFO L226 Difference]: Without dead ends: 29350 [2021-06-05 21:12:02,194 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:03,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29350 states. [2021-06-05 21:12:03,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29350 to 13363. [2021-06-05 21:12:03,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.315297111210897) internal successors, (71023), 13362 states have internal predecessors, (71023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:03,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71023 transitions. [2021-06-05 21:12:03,388 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71023 transitions. Word has length 33 [2021-06-05 21:12:03,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:03,388 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71023 transitions. [2021-06-05 21:12:03,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:03,388 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71023 transitions. [2021-06-05 21:12:03,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:03,415 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:03,415 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:03,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2021-06-05 21:12:03,415 INFO L430 AbstractCegarLoop]: === Iteration 373 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:03,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:03,415 INFO L82 PathProgramCache]: Analyzing trace with hash -262503217, now seen corresponding path program 366 times [2021-06-05 21:12:03,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:03,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150766995] [2021-06-05 21:12:03,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:03,543 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 21:12:03,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:03,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150766995] [2021-06-05 21:12:03,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150766995] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:03,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:03,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:03,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608605299] [2021-06-05 21:12:03,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:03,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:03,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:03,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:03,544 INFO L87 Difference]: Start difference. First operand 13363 states and 71023 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:03,747 INFO L93 Difference]: Finished difference Result 30085 states and 151382 transitions. [2021-06-05 21:12:03,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:03,747 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:03,838 INFO L225 Difference]: With dead ends: 30085 [2021-06-05 21:12:03,838 INFO L226 Difference]: Without dead ends: 29182 [2021-06-05 21:12:03,839 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:04,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29182 states. [2021-06-05 21:12:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29182 to 13195. [2021-06-05 21:12:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13195 states, 13194 states have (on average 5.330225860239503) internal successors, (70327), 13194 states have internal predecessors, (70327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:05,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13195 states to 13195 states and 70327 transitions. [2021-06-05 21:12:05,003 INFO L78 Accepts]: Start accepts. Automaton has 13195 states and 70327 transitions. Word has length 33 [2021-06-05 21:12:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:05,003 INFO L482 AbstractCegarLoop]: Abstraction has 13195 states and 70327 transitions. [2021-06-05 21:12:05,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 13195 states and 70327 transitions. [2021-06-05 21:12:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:05,029 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:05,029 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:05,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2021-06-05 21:12:05,029 INFO L430 AbstractCegarLoop]: === Iteration 374 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:05,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:05,030 INFO L82 PathProgramCache]: Analyzing trace with hash 914239533, now seen corresponding path program 367 times [2021-06-05 21:12:05,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:05,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458996903] [2021-06-05 21:12:05,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:05,155 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 21:12:05,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:05,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458996903] [2021-06-05 21:12:05,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458996903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:05,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:05,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:05,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489123167] [2021-06-05 21:12:05,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:05,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:05,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:05,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:05,156 INFO L87 Difference]: Start difference. First operand 13195 states and 70327 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:05,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:05,517 INFO L93 Difference]: Finished difference Result 30195 states and 152015 transitions. [2021-06-05 21:12:05,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:05,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:05,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:05,619 INFO L225 Difference]: With dead ends: 30195 [2021-06-05 21:12:05,619 INFO L226 Difference]: Without dead ends: 29436 [2021-06-05 21:12:05,620 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:06,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29436 states. [2021-06-05 21:12:06,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29436 to 13375. [2021-06-05 21:12:06,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13375 states, 13374 states have (on average 5.320397786750411) internal successors, (71155), 13374 states have internal predecessors, (71155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13375 states to 13375 states and 71155 transitions. [2021-06-05 21:12:06,669 INFO L78 Accepts]: Start accepts. Automaton has 13375 states and 71155 transitions. Word has length 33 [2021-06-05 21:12:06,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:06,669 INFO L482 AbstractCegarLoop]: Abstraction has 13375 states and 71155 transitions. [2021-06-05 21:12:06,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:06,669 INFO L276 IsEmpty]: Start isEmpty. Operand 13375 states and 71155 transitions. [2021-06-05 21:12:06,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:06,698 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:06,698 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:06,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2021-06-05 21:12:06,698 INFO L430 AbstractCegarLoop]: === Iteration 375 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:06,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1995302159, now seen corresponding path program 368 times [2021-06-05 21:12:06,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:06,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114590463] [2021-06-05 21:12:06,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:06,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:06,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:06,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114590463] [2021-06-05 21:12:06,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114590463] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:06,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:06,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:06,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808173674] [2021-06-05 21:12:06,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:06,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:06,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:06,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:06,872 INFO L87 Difference]: Start difference. First operand 13375 states and 71155 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:07,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:07,222 INFO L93 Difference]: Finished difference Result 30187 states and 151867 transitions. [2021-06-05 21:12:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:07,222 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:07,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:07,313 INFO L225 Difference]: With dead ends: 30187 [2021-06-05 21:12:07,313 INFO L226 Difference]: Without dead ends: 29316 [2021-06-05 21:12:07,313 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:08,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29316 states. [2021-06-05 21:12:08,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29316 to 13255. [2021-06-05 21:12:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13255 states, 13254 states have (on average 5.326920175041497) internal successors, (70603), 13254 states have internal predecessors, (70603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:08,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13255 states to 13255 states and 70603 transitions. [2021-06-05 21:12:08,378 INFO L78 Accepts]: Start accepts. Automaton has 13255 states and 70603 transitions. Word has length 33 [2021-06-05 21:12:08,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:08,378 INFO L482 AbstractCegarLoop]: Abstraction has 13255 states and 70603 transitions. [2021-06-05 21:12:08,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:08,378 INFO L276 IsEmpty]: Start isEmpty. Operand 13255 states and 70603 transitions. [2021-06-05 21:12:08,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:08,501 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:08,501 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:08,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2021-06-05 21:12:08,501 INFO L430 AbstractCegarLoop]: === Iteration 376 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:08,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:08,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1930295341, now seen corresponding path program 369 times [2021-06-05 21:12:08,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:08,502 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857838486] [2021-06-05 21:12:08,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:08,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:08,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:08,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857838486] [2021-06-05 21:12:08,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857838486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:08,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:08,628 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:08,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787232437] [2021-06-05 21:12:08,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:08,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:08,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:08,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:08,629 INFO L87 Difference]: Start difference. First operand 13255 states and 70603 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:08,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:08,863 INFO L93 Difference]: Finished difference Result 30213 states and 152016 transitions. [2021-06-05 21:12:08,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:08,863 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:08,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:08,955 INFO L225 Difference]: With dead ends: 30213 [2021-06-05 21:12:08,955 INFO L226 Difference]: Without dead ends: 29454 [2021-06-05 21:12:08,955 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:09,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29454 states. [2021-06-05 21:12:10,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29454 to 13379. [2021-06-05 21:12:10,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.31521901629541) internal successors, (71107), 13378 states have internal predecessors, (71107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71107 transitions. [2021-06-05 21:12:10,144 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71107 transitions. Word has length 33 [2021-06-05 21:12:10,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:10,144 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71107 transitions. [2021-06-05 21:12:10,144 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71107 transitions. [2021-06-05 21:12:10,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:10,171 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:10,171 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:10,171 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2021-06-05 21:12:10,171 INFO L430 AbstractCegarLoop]: === Iteration 377 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:10,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:10,171 INFO L82 PathProgramCache]: Analyzing trace with hash 142913581, now seen corresponding path program 370 times [2021-06-05 21:12:10,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:10,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017531380] [2021-06-05 21:12:10,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:10,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:10,297 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:10,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017531380] [2021-06-05 21:12:10,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017531380] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:10,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:10,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:10,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926495069] [2021-06-05 21:12:10,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:10,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:10,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:10,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:10,298 INFO L87 Difference]: Start difference. First operand 13379 states and 71107 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:10,516 INFO L93 Difference]: Finished difference Result 30219 states and 151909 transitions. [2021-06-05 21:12:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:10,517 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:10,603 INFO L225 Difference]: With dead ends: 30219 [2021-06-05 21:12:10,603 INFO L226 Difference]: Without dead ends: 29330 [2021-06-05 21:12:10,603 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:11,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29330 states. [2021-06-05 21:12:11,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29330 to 13255. [2021-06-05 21:12:11,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13255 states, 13254 states have (on average 5.322393239776671) internal successors, (70543), 13254 states have internal predecessors, (70543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:11,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13255 states to 13255 states and 70543 transitions. [2021-06-05 21:12:11,761 INFO L78 Accepts]: Start accepts. Automaton has 13255 states and 70543 transitions. Word has length 33 [2021-06-05 21:12:11,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:11,761 INFO L482 AbstractCegarLoop]: Abstraction has 13255 states and 70543 transitions. [2021-06-05 21:12:11,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:11,761 INFO L276 IsEmpty]: Start isEmpty. Operand 13255 states and 70543 transitions. [2021-06-05 21:12:11,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:11,786 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:11,786 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:11,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2021-06-05 21:12:11,787 INFO L430 AbstractCegarLoop]: === Iteration 378 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:11,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:11,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1976666993, now seen corresponding path program 371 times [2021-06-05 21:12:11,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:11,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726904682] [2021-06-05 21:12:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:11,926 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 21:12:11,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:11,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726904682] [2021-06-05 21:12:11,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726904682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:11,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:11,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:11,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256182737] [2021-06-05 21:12:11,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:11,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:11,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:11,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:11,927 INFO L87 Difference]: Start difference. First operand 13255 states and 70543 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:12,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:12,128 INFO L93 Difference]: Finished difference Result 30193 states and 151884 transitions. [2021-06-05 21:12:12,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:12,128 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:12,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:12,217 INFO L225 Difference]: With dead ends: 30193 [2021-06-05 21:12:12,217 INFO L226 Difference]: Without dead ends: 29442 [2021-06-05 21:12:12,217 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:13,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29442 states. [2021-06-05 21:12:13,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29442 to 13375. [2021-06-05 21:12:13,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13375 states, 13374 states have (on average 5.311425153282489) internal successors, (71035), 13374 states have internal predecessors, (71035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:13,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13375 states to 13375 states and 71035 transitions. [2021-06-05 21:12:13,386 INFO L78 Accepts]: Start accepts. Automaton has 13375 states and 71035 transitions. Word has length 33 [2021-06-05 21:12:13,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:13,386 INFO L482 AbstractCegarLoop]: Abstraction has 13375 states and 71035 transitions. [2021-06-05 21:12:13,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:13,386 INFO L276 IsEmpty]: Start isEmpty. Operand 13375 states and 71035 transitions. [2021-06-05 21:12:13,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:13,413 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:13,413 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:13,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2021-06-05 21:12:13,413 INFO L430 AbstractCegarLoop]: === Iteration 379 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:13,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:13,413 INFO L82 PathProgramCache]: Analyzing trace with hash -772017811, now seen corresponding path program 372 times [2021-06-05 21:12:13,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:13,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840172048] [2021-06-05 21:12:13,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:13,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:13,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840172048] [2021-06-05 21:12:13,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840172048] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:13,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:13,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:13,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999379417] [2021-06-05 21:12:13,554 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:13,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:13,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:13,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:13,554 INFO L87 Difference]: Start difference. First operand 13375 states and 71035 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:13,774 INFO L93 Difference]: Finished difference Result 30207 states and 151809 transitions. [2021-06-05 21:12:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:13,774 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:13,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:13,865 INFO L225 Difference]: With dead ends: 30207 [2021-06-05 21:12:13,865 INFO L226 Difference]: Without dead ends: 29262 [2021-06-05 21:12:13,866 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:14,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29262 states. [2021-06-05 21:12:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29262 to 13195. [2021-06-05 21:12:14,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13195 states, 13194 states have (on average 5.328103683492497) internal successors, (70299), 13194 states have internal predecessors, (70299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:15,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13195 states to 13195 states and 70299 transitions. [2021-06-05 21:12:15,039 INFO L78 Accepts]: Start accepts. Automaton has 13195 states and 70299 transitions. Word has length 33 [2021-06-05 21:12:15,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:15,040 INFO L482 AbstractCegarLoop]: Abstraction has 13195 states and 70299 transitions. [2021-06-05 21:12:15,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:15,040 INFO L276 IsEmpty]: Start isEmpty. Operand 13195 states and 70299 transitions. [2021-06-05 21:12:15,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:15,065 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:15,065 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:15,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2021-06-05 21:12:15,066 INFO L430 AbstractCegarLoop]: === Iteration 380 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:15,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:15,066 INFO L82 PathProgramCache]: Analyzing trace with hash 124853263, now seen corresponding path program 373 times [2021-06-05 21:12:15,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:15,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335048459] [2021-06-05 21:12:15,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:15,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:15,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335048459] [2021-06-05 21:12:15,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335048459] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:15,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:15,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:15,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469851245] [2021-06-05 21:12:15,191 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:15,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:15,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:15,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:15,191 INFO L87 Difference]: Start difference. First operand 13195 states and 70299 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:15,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:15,398 INFO L93 Difference]: Finished difference Result 30135 states and 151731 transitions. [2021-06-05 21:12:15,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:15,399 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:15,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:15,488 INFO L225 Difference]: With dead ends: 30135 [2021-06-05 21:12:15,488 INFO L226 Difference]: Without dead ends: 29376 [2021-06-05 21:12:15,489 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 151.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:16,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29376 states. [2021-06-05 21:12:16,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29376 to 13363. [2021-06-05 21:12:16,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.319488100583745) internal successors, (71079), 13362 states have internal predecessors, (71079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71079 transitions. [2021-06-05 21:12:16,688 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71079 transitions. Word has length 33 [2021-06-05 21:12:16,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:16,689 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71079 transitions. [2021-06-05 21:12:16,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:16,689 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71079 transitions. [2021-06-05 21:12:16,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:16,715 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:16,715 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:16,715 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2021-06-05 21:12:16,715 INFO L430 AbstractCegarLoop]: === Iteration 381 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:16,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:16,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1563393009, now seen corresponding path program 374 times [2021-06-05 21:12:16,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:16,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482591797] [2021-06-05 21:12:16,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:16,843 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 21:12:16,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:16,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482591797] [2021-06-05 21:12:16,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482591797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:16,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:16,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:16,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007507213] [2021-06-05 21:12:16,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:16,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:16,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:16,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:16,844 INFO L87 Difference]: Start difference. First operand 13363 states and 71079 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:17,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:17,062 INFO L93 Difference]: Finished difference Result 30111 states and 151527 transitions. [2021-06-05 21:12:17,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:17,063 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:17,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:17,338 INFO L225 Difference]: With dead ends: 30111 [2021-06-05 21:12:17,338 INFO L226 Difference]: Without dead ends: 29264 [2021-06-05 21:12:17,338 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:18,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29264 states. [2021-06-05 21:12:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29264 to 13251. [2021-06-05 21:12:18,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.3252075471698115) internal successors, (70559), 13250 states have internal predecessors, (70559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70559 transitions. [2021-06-05 21:12:18,376 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70559 transitions. Word has length 33 [2021-06-05 21:12:18,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:18,376 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70559 transitions. [2021-06-05 21:12:18,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:18,376 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70559 transitions. [2021-06-05 21:12:18,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:18,402 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:18,402 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:18,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2021-06-05 21:12:18,403 INFO L430 AbstractCegarLoop]: === Iteration 382 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:18,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:18,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1838501651, now seen corresponding path program 375 times [2021-06-05 21:12:18,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:18,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612086264] [2021-06-05 21:12:18,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:18,530 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 21:12:18,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:18,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612086264] [2021-06-05 21:12:18,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612086264] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:18,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:18,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:18,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077607560] [2021-06-05 21:12:18,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:18,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:18,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:18,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:18,530 INFO L87 Difference]: Start difference. First operand 13251 states and 70559 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:18,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:18,896 INFO L93 Difference]: Finished difference Result 30177 states and 151836 transitions. [2021-06-05 21:12:18,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:18,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:18,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:18,986 INFO L225 Difference]: With dead ends: 30177 [2021-06-05 21:12:18,986 INFO L226 Difference]: Without dead ends: 29418 [2021-06-05 21:12:18,986 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:19,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29418 states. [2021-06-05 21:12:20,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29418 to 13375. [2021-06-05 21:12:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13375 states, 13374 states have (on average 5.313518767758337) internal successors, (71063), 13374 states have internal predecessors, (71063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:20,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13375 states to 13375 states and 71063 transitions. [2021-06-05 21:12:20,065 INFO L78 Accepts]: Start accepts. Automaton has 13375 states and 71063 transitions. Word has length 33 [2021-06-05 21:12:20,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:20,065 INFO L482 AbstractCegarLoop]: Abstraction has 13375 states and 71063 transitions. [2021-06-05 21:12:20,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:20,065 INFO L276 IsEmpty]: Start isEmpty. Operand 13375 states and 71063 transitions. [2021-06-05 21:12:20,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:20,091 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:20,091 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:20,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2021-06-05 21:12:20,091 INFO L430 AbstractCegarLoop]: === Iteration 383 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:20,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1852515343, now seen corresponding path program 376 times [2021-06-05 21:12:20,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:20,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024128050] [2021-06-05 21:12:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:20,315 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 21:12:20,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:20,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:20,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024128050] [2021-06-05 21:12:20,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024128050] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:20,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:20,341 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:20,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765189320] [2021-06-05 21:12:20,341 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:20,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:20,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:20,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:20,341 INFO L87 Difference]: Start difference. First operand 13375 states and 71063 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:20,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:20,575 INFO L93 Difference]: Finished difference Result 30183 states and 151729 transitions. [2021-06-05 21:12:20,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:20,575 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:20,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:20,668 INFO L225 Difference]: With dead ends: 30183 [2021-06-05 21:12:20,668 INFO L226 Difference]: Without dead ends: 29294 [2021-06-05 21:12:20,668 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 292.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29294 states. [2021-06-05 21:12:21,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29294 to 13251. [2021-06-05 21:12:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.320981132075472) internal successors, (70503), 13250 states have internal predecessors, (70503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:21,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70503 transitions. [2021-06-05 21:12:21,890 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70503 transitions. Word has length 33 [2021-06-05 21:12:21,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:21,890 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70503 transitions. [2021-06-05 21:12:21,890 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:21,891 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70503 transitions. [2021-06-05 21:12:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:21,920 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:21,920 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:21,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2021-06-05 21:12:21,920 INFO L430 AbstractCegarLoop]: === Iteration 384 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:21,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:21,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1250345969, now seen corresponding path program 377 times [2021-06-05 21:12:21,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:21,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585710879] [2021-06-05 21:12:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:22,065 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 21:12:22,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:22,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585710879] [2021-06-05 21:12:22,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585710879] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:22,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:22,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:22,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252095342] [2021-06-05 21:12:22,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:22,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:22,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:22,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:22,066 INFO L87 Difference]: Start difference. First operand 13251 states and 70503 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:22,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:22,298 INFO L93 Difference]: Finished difference Result 30117 states and 151544 transitions. [2021-06-05 21:12:22,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:22,299 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:22,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:22,390 INFO L225 Difference]: With dead ends: 30117 [2021-06-05 21:12:22,390 INFO L226 Difference]: Without dead ends: 29382 [2021-06-05 21:12:22,390 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:23,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29382 states. [2021-06-05 21:12:23,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29382 to 13363. [2021-06-05 21:12:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.311106121838048) internal successors, (70967), 13362 states have internal predecessors, (70967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70967 transitions. [2021-06-05 21:12:23,565 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70967 transitions. Word has length 33 [2021-06-05 21:12:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:23,566 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70967 transitions. [2021-06-05 21:12:23,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70967 transitions. [2021-06-05 21:12:23,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:23,592 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:23,592 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:23,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2021-06-05 21:12:23,592 INFO L430 AbstractCegarLoop]: === Iteration 385 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:23,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:23,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1223585901, now seen corresponding path program 378 times [2021-06-05 21:12:23,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:23,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085292339] [2021-06-05 21:12:23,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:23,732 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 21:12:23,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:23,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085292339] [2021-06-05 21:12:23,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085292339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:23,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:23,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:23,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499102632] [2021-06-05 21:12:23,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:23,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:23,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:23,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:23,733 INFO L87 Difference]: Start difference. First operand 13363 states and 70967 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:23,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:23,947 INFO L93 Difference]: Finished difference Result 30147 states and 151541 transitions. [2021-06-05 21:12:23,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:23,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:23,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:24,045 INFO L225 Difference]: With dead ends: 30147 [2021-06-05 21:12:24,045 INFO L226 Difference]: Without dead ends: 29214 [2021-06-05 21:12:24,045 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:24,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29214 states. [2021-06-05 21:12:25,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29214 to 13195. [2021-06-05 21:12:25,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13195 states, 13194 states have (on average 5.3259815067454905) internal successors, (70271), 13194 states have internal predecessors, (70271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13195 states to 13195 states and 70271 transitions. [2021-06-05 21:12:25,227 INFO L78 Accepts]: Start accepts. Automaton has 13195 states and 70271 transitions. Word has length 33 [2021-06-05 21:12:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:25,227 INFO L482 AbstractCegarLoop]: Abstraction has 13195 states and 70271 transitions. [2021-06-05 21:12:25,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:25,227 INFO L276 IsEmpty]: Start isEmpty. Operand 13195 states and 70271 transitions. [2021-06-05 21:12:25,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:25,252 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:25,252 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:25,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2021-06-05 21:12:25,252 INFO L430 AbstractCegarLoop]: === Iteration 386 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:25,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:25,253 INFO L82 PathProgramCache]: Analyzing trace with hash 204374001, now seen corresponding path program 379 times [2021-06-05 21:12:25,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:25,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823504578] [2021-06-05 21:12:25,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:25,396 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 21:12:25,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:25,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823504578] [2021-06-05 21:12:25,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823504578] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:25,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:25,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:25,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726565434] [2021-06-05 21:12:25,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:25,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:25,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:25,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:25,397 INFO L87 Difference]: Start difference. First operand 13195 states and 70271 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:25,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:25,634 INFO L93 Difference]: Finished difference Result 30107 states and 151603 transitions. [2021-06-05 21:12:25,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:25,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:25,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:25,723 INFO L225 Difference]: With dead ends: 30107 [2021-06-05 21:12:25,723 INFO L226 Difference]: Without dead ends: 29356 [2021-06-05 21:12:25,723 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:26,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2021-06-05 21:12:26,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 13363. [2021-06-05 21:12:26,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.317392605897321) internal successors, (71051), 13362 states have internal predecessors, (71051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:26,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71051 transitions. [2021-06-05 21:12:26,874 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71051 transitions. Word has length 33 [2021-06-05 21:12:26,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:26,874 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71051 transitions. [2021-06-05 21:12:26,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:26,874 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71051 transitions. [2021-06-05 21:12:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:26,901 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:26,901 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:26,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2021-06-05 21:12:26,901 INFO L430 AbstractCegarLoop]: === Iteration 387 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:26,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:26,901 INFO L82 PathProgramCache]: Analyzing trace with hash -642422961, now seen corresponding path program 380 times [2021-06-05 21:12:26,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:26,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388144058] [2021-06-05 21:12:26,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:27,037 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 21:12:27,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:27,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388144058] [2021-06-05 21:12:27,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388144058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:27,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:27,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:27,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853311070] [2021-06-05 21:12:27,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:27,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:27,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:27,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:27,038 INFO L87 Difference]: Start difference. First operand 13363 states and 71051 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:27,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:27,264 INFO L93 Difference]: Finished difference Result 30091 states and 151427 transitions. [2021-06-05 21:12:27,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:27,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:27,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:27,351 INFO L225 Difference]: With dead ends: 30091 [2021-06-05 21:12:27,352 INFO L226 Difference]: Without dead ends: 29244 [2021-06-05 21:12:27,352 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:28,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29244 states. [2021-06-05 21:12:28,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29244 to 13251. [2021-06-05 21:12:28,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.323094339622641) internal successors, (70531), 13250 states have internal predecessors, (70531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70531 transitions. [2021-06-05 21:12:28,562 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70531 transitions. Word has length 33 [2021-06-05 21:12:28,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:28,562 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70531 transitions. [2021-06-05 21:12:28,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:28,562 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70531 transitions. [2021-06-05 21:12:28,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:28,589 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:28,589 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:28,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2021-06-05 21:12:28,589 INFO L430 AbstractCegarLoop]: === Iteration 388 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:28,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:28,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1758980913, now seen corresponding path program 381 times [2021-06-05 21:12:28,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:28,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975181173] [2021-06-05 21:12:28,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:28,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:28,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:28,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975181173] [2021-06-05 21:12:28,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975181173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:28,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:28,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:28,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148006598] [2021-06-05 21:12:28,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:28,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:28,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:28,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:28,742 INFO L87 Difference]: Start difference. First operand 13251 states and 70531 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:28,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:28,968 INFO L93 Difference]: Finished difference Result 30145 states and 151692 transitions. [2021-06-05 21:12:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:28,968 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:28,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:29,058 INFO L225 Difference]: With dead ends: 30145 [2021-06-05 21:12:29,058 INFO L226 Difference]: Without dead ends: 29394 [2021-06-05 21:12:29,059 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29394 states. [2021-06-05 21:12:30,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29394 to 13371. [2021-06-05 21:12:30,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.3121166791323855) internal successors, (71023), 13370 states have internal predecessors, (71023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:30,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71023 transitions. [2021-06-05 21:12:30,231 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71023 transitions. Word has length 33 [2021-06-05 21:12:30,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:30,231 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71023 transitions. [2021-06-05 21:12:30,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:30,231 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71023 transitions. [2021-06-05 21:12:30,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:30,258 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:30,258 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:30,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2021-06-05 21:12:30,258 INFO L430 AbstractCegarLoop]: === Iteration 389 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:30,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:30,258 INFO L82 PathProgramCache]: Analyzing trace with hash 629099727, now seen corresponding path program 382 times [2021-06-05 21:12:30,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:30,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394136318] [2021-06-05 21:12:30,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:30,409 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 21:12:30,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:30,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394136318] [2021-06-05 21:12:30,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394136318] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:30,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:30,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:30,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121230887] [2021-06-05 21:12:30,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:30,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:30,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:30,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:30,409 INFO L87 Difference]: Start difference. First operand 13371 states and 71023 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:30,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:30,761 INFO L93 Difference]: Finished difference Result 30159 states and 151617 transitions. [2021-06-05 21:12:30,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:30,762 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:30,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:30,850 INFO L225 Difference]: With dead ends: 30159 [2021-06-05 21:12:30,850 INFO L226 Difference]: Without dead ends: 29274 [2021-06-05 21:12:30,850 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:31,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29274 states. [2021-06-05 21:12:31,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29274 to 13251. [2021-06-05 21:12:31,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.318867924528302) internal successors, (70475), 13250 states have internal predecessors, (70475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:31,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70475 transitions. [2021-06-05 21:12:31,897 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70475 transitions. Word has length 33 [2021-06-05 21:12:31,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:31,897 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70475 transitions. [2021-06-05 21:12:31,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:31,897 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70475 transitions. [2021-06-05 21:12:31,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:31,924 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:31,924 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:31,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2021-06-05 21:12:31,924 INFO L430 AbstractCegarLoop]: === Iteration 390 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:31,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:31,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1679238317, now seen corresponding path program 383 times [2021-06-05 21:12:31,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:31,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653486460] [2021-06-05 21:12:31,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:32,071 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 21:12:32,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:32,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653486460] [2021-06-05 21:12:32,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653486460] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:32,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:32,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:32,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685912036] [2021-06-05 21:12:32,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:32,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:32,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:32,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:32,072 INFO L87 Difference]: Start difference. First operand 13251 states and 70475 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:32,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:32,388 INFO L93 Difference]: Finished difference Result 30105 states and 151472 transitions. [2021-06-05 21:12:32,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:32,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:32,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:32,476 INFO L225 Difference]: With dead ends: 30105 [2021-06-05 21:12:32,476 INFO L226 Difference]: Without dead ends: 29370 [2021-06-05 21:12:32,476 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 172.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:33,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29370 states. [2021-06-05 21:12:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29370 to 13363. [2021-06-05 21:12:33,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.309010627151624) internal successors, (70939), 13362 states have internal predecessors, (70939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70939 transitions. [2021-06-05 21:12:33,696 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70939 transitions. Word has length 33 [2021-06-05 21:12:33,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:33,696 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70939 transitions. [2021-06-05 21:12:33,696 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:33,697 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70939 transitions. [2021-06-05 21:12:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:33,724 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:33,724 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:33,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2021-06-05 21:12:33,724 INFO L430 AbstractCegarLoop]: === Iteration 391 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:33,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:33,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1061714959, now seen corresponding path program 384 times [2021-06-05 21:12:33,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:33,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770277284] [2021-06-05 21:12:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:33,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:33,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770277284] [2021-06-05 21:12:33,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770277284] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:33,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:33,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:33,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000658016] [2021-06-05 21:12:33,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:33,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:33,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:33,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:33,873 INFO L87 Difference]: Start difference. First operand 13363 states and 70939 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:34,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:34,092 INFO L93 Difference]: Finished difference Result 30135 states and 151469 transitions. [2021-06-05 21:12:34,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:34,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:34,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:34,180 INFO L225 Difference]: With dead ends: 30135 [2021-06-05 21:12:34,180 INFO L226 Difference]: Without dead ends: 29174 [2021-06-05 21:12:34,180 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:34,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29174 states. [2021-06-05 21:12:35,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29174 to 13167. [2021-06-05 21:12:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13167 states, 13166 states have (on average 5.329560990429895) internal successors, (70169), 13166 states have internal predecessors, (70169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:35,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13167 states to 13167 states and 70169 transitions. [2021-06-05 21:12:35,377 INFO L78 Accepts]: Start accepts. Automaton has 13167 states and 70169 transitions. Word has length 33 [2021-06-05 21:12:35,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:35,377 INFO L482 AbstractCegarLoop]: Abstraction has 13167 states and 70169 transitions. [2021-06-05 21:12:35,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:35,377 INFO L276 IsEmpty]: Start isEmpty. Operand 13167 states and 70169 transitions. [2021-06-05 21:12:35,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:35,404 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:35,404 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:35,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2021-06-05 21:12:35,404 INFO L430 AbstractCegarLoop]: === Iteration 392 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:35,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:35,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1701086603, now seen corresponding path program 385 times [2021-06-05 21:12:35,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:35,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812571944] [2021-06-05 21:12:35,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:35,536 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 21:12:35,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:35,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812571944] [2021-06-05 21:12:35,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812571944] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:35,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:35,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:35,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533110426] [2021-06-05 21:12:35,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:35,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:35,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:35,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:35,537 INFO L87 Difference]: Start difference. First operand 13167 states and 70169 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:35,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:35,769 INFO L93 Difference]: Finished difference Result 30139 states and 151807 transitions. [2021-06-05 21:12:35,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:35,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:35,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:35,865 INFO L225 Difference]: With dead ends: 30139 [2021-06-05 21:12:35,866 INFO L226 Difference]: Without dead ends: 29380 [2021-06-05 21:12:35,866 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:36,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29380 states. [2021-06-05 21:12:36,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29380 to 13371. [2021-06-05 21:12:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.3215407629020195) internal successors, (71149), 13370 states have internal predecessors, (71149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71149 transitions. [2021-06-05 21:12:37,059 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71149 transitions. Word has length 33 [2021-06-05 21:12:37,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:37,059 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71149 transitions. [2021-06-05 21:12:37,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71149 transitions. [2021-06-05 21:12:37,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:37,088 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:37,088 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:37,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2021-06-05 21:12:37,088 INFO L430 AbstractCegarLoop]: === Iteration 393 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:37,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:37,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1512818067, now seen corresponding path program 386 times [2021-06-05 21:12:37,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:37,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681197040] [2021-06-05 21:12:37,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:37,216 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 21:12:37,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:37,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681197040] [2021-06-05 21:12:37,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681197040] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:37,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:37,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:37,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125177318] [2021-06-05 21:12:37,216 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:37,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:37,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:37,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:37,217 INFO L87 Difference]: Start difference. First operand 13371 states and 71149 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:37,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:37,455 INFO L93 Difference]: Finished difference Result 30131 states and 151659 transitions. [2021-06-05 21:12:37,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:37,455 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:37,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:37,546 INFO L225 Difference]: With dead ends: 30131 [2021-06-05 21:12:37,546 INFO L226 Difference]: Without dead ends: 29260 [2021-06-05 21:12:37,546 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:38,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29260 states. [2021-06-05 21:12:38,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29260 to 13251. [2021-06-05 21:12:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.328377358490566) internal successors, (70601), 13250 states have internal predecessors, (70601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:38,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70601 transitions. [2021-06-05 21:12:38,742 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70601 transitions. Word has length 33 [2021-06-05 21:12:38,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:38,742 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70601 transitions. [2021-06-05 21:12:38,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70601 transitions. [2021-06-05 21:12:38,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:38,770 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:38,770 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:38,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2021-06-05 21:12:38,770 INFO L430 AbstractCegarLoop]: === Iteration 394 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:38,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:38,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1220184557, now seen corresponding path program 387 times [2021-06-05 21:12:38,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:38,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627492494] [2021-06-05 21:12:38,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:38,898 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 21:12:38,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:38,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627492494] [2021-06-05 21:12:38,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627492494] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:38,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:38,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:38,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459929336] [2021-06-05 21:12:38,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:38,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:38,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:38,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:38,899 INFO L87 Difference]: Start difference. First operand 13251 states and 70601 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:39,138 INFO L93 Difference]: Finished difference Result 30115 states and 151651 transitions. [2021-06-05 21:12:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:39,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:39,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:39,228 INFO L225 Difference]: With dead ends: 30115 [2021-06-05 21:12:39,228 INFO L226 Difference]: Without dead ends: 29356 [2021-06-05 21:12:39,229 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:40,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2021-06-05 21:12:40,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 13363. [2021-06-05 21:12:40,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.318440353240533) internal successors, (71065), 13362 states have internal predecessors, (71065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:40,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71065 transitions. [2021-06-05 21:12:40,454 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71065 transitions. Word has length 33 [2021-06-05 21:12:40,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:40,454 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71065 transitions. [2021-06-05 21:12:40,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:40,454 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71065 transitions. [2021-06-05 21:12:40,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:40,482 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:40,482 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:40,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2021-06-05 21:12:40,482 INFO L430 AbstractCegarLoop]: === Iteration 395 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:40,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:40,482 INFO L82 PathProgramCache]: Analyzing trace with hash -468061715, now seen corresponding path program 388 times [2021-06-05 21:12:40,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:40,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347298770] [2021-06-05 21:12:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:40,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:40,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347298770] [2021-06-05 21:12:40,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347298770] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:40,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:40,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:40,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695549204] [2021-06-05 21:12:40,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:40,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:40,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:40,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:40,613 INFO L87 Difference]: Start difference. First operand 13363 states and 71065 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:40,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:40,852 INFO L93 Difference]: Finished difference Result 30091 states and 151447 transitions. [2021-06-05 21:12:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:40,852 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:40,941 INFO L225 Difference]: With dead ends: 30091 [2021-06-05 21:12:40,942 INFO L226 Difference]: Without dead ends: 29244 [2021-06-05 21:12:40,942 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:41,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29244 states. [2021-06-05 21:12:42,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29244 to 13251. [2021-06-05 21:12:42,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.324150943396226) internal successors, (70545), 13250 states have internal predecessors, (70545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:42,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70545 transitions. [2021-06-05 21:12:42,104 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70545 transitions. Word has length 33 [2021-06-05 21:12:42,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:42,104 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70545 transitions. [2021-06-05 21:12:42,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:42,104 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70545 transitions. [2021-06-05 21:12:42,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:42,130 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:42,130 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:42,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2021-06-05 21:12:42,130 INFO L430 AbstractCegarLoop]: === Iteration 396 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:42,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:42,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1608189519, now seen corresponding path program 389 times [2021-06-05 21:12:42,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:42,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885770315] [2021-06-05 21:12:42,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:42,260 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 21:12:42,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:42,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885770315] [2021-06-05 21:12:42,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885770315] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:42,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:42,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:42,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973000537] [2021-06-05 21:12:42,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:42,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:42,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:42,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:42,261 INFO L87 Difference]: Start difference. First operand 13251 states and 70545 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:42,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:42,635 INFO L93 Difference]: Finished difference Result 30099 states and 151539 transitions. [2021-06-05 21:12:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:42,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:42,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:42,722 INFO L225 Difference]: With dead ends: 30099 [2021-06-05 21:12:42,722 INFO L226 Difference]: Without dead ends: 29348 [2021-06-05 21:12:42,723 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:43,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29348 states. [2021-06-05 21:12:43,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29348 to 13363. [2021-06-05 21:12:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.314249363867685) internal successors, (71009), 13362 states have internal predecessors, (71009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:43,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71009 transitions. [2021-06-05 21:12:43,753 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71009 transitions. Word has length 33 [2021-06-05 21:12:43,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:43,753 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71009 transitions. [2021-06-05 21:12:43,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71009 transitions. [2021-06-05 21:12:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:43,779 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:43,779 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:43,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2021-06-05 21:12:43,779 INFO L430 AbstractCegarLoop]: === Iteration 397 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:43,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:43,779 INFO L82 PathProgramCache]: Analyzing trace with hash 761392557, now seen corresponding path program 390 times [2021-06-05 21:12:43,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:43,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906007290] [2021-06-05 21:12:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:43,906 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 21:12:43,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:43,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906007290] [2021-06-05 21:12:43,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906007290] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:43,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:43,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:43,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721635894] [2021-06-05 21:12:43,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:43,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:43,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:43,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:43,907 INFO L87 Difference]: Start difference. First operand 13363 states and 71009 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:44,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:44,221 INFO L93 Difference]: Finished difference Result 30083 states and 151363 transitions. [2021-06-05 21:12:44,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:44,221 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:44,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:44,308 INFO L225 Difference]: With dead ends: 30083 [2021-06-05 21:12:44,308 INFO L226 Difference]: Without dead ends: 29180 [2021-06-05 21:12:44,308 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:45,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29180 states. [2021-06-05 21:12:45,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29180 to 13195. [2021-06-05 21:12:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13195 states, 13194 states have (on average 5.329164771866) internal successors, (70313), 13194 states have internal predecessors, (70313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13195 states to 13195 states and 70313 transitions. [2021-06-05 21:12:45,393 INFO L78 Accepts]: Start accepts. Automaton has 13195 states and 70313 transitions. Word has length 33 [2021-06-05 21:12:45,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:45,393 INFO L482 AbstractCegarLoop]: Abstraction has 13195 states and 70313 transitions. [2021-06-05 21:12:45,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:45,393 INFO L276 IsEmpty]: Start isEmpty. Operand 13195 states and 70313 transitions. [2021-06-05 21:12:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:45,526 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:45,526 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:45,526 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2021-06-05 21:12:45,526 INFO L430 AbstractCegarLoop]: === Iteration 398 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:45,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:45,526 INFO L82 PathProgramCache]: Analyzing trace with hash 708579373, now seen corresponding path program 391 times [2021-06-05 21:12:45,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:45,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694875598] [2021-06-05 21:12:45,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:45,656 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 21:12:45,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:45,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694875598] [2021-06-05 21:12:45,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694875598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:45,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:45,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:45,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744087292] [2021-06-05 21:12:45,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:45,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:45,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:45,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:45,657 INFO L87 Difference]: Start difference. First operand 13195 states and 70313 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:45,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:45,870 INFO L93 Difference]: Finished difference Result 30191 states and 151991 transitions. [2021-06-05 21:12:45,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:45,870 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:45,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:45,964 INFO L225 Difference]: With dead ends: 30191 [2021-06-05 21:12:45,964 INFO L226 Difference]: Without dead ends: 29432 [2021-06-05 21:12:45,964 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:46,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29432 states. [2021-06-05 21:12:47,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29432 to 13375. [2021-06-05 21:12:47,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13375 states, 13374 states have (on average 5.319350979512487) internal successors, (71141), 13374 states have internal predecessors, (71141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:47,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13375 states to 13375 states and 71141 transitions. [2021-06-05 21:12:47,248 INFO L78 Accepts]: Start accepts. Automaton has 13375 states and 71141 transitions. Word has length 33 [2021-06-05 21:12:47,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:47,248 INFO L482 AbstractCegarLoop]: Abstraction has 13375 states and 71141 transitions. [2021-06-05 21:12:47,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:47,248 INFO L276 IsEmpty]: Start isEmpty. Operand 13375 states and 71141 transitions. [2021-06-05 21:12:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:47,276 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:47,276 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:47,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2021-06-05 21:12:47,276 INFO L430 AbstractCegarLoop]: === Iteration 399 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:47,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:47,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1789641999, now seen corresponding path program 392 times [2021-06-05 21:12:47,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:47,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848658941] [2021-06-05 21:12:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:47,407 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 21:12:47,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:47,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848658941] [2021-06-05 21:12:47,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848658941] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:47,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:47,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:47,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822451631] [2021-06-05 21:12:47,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:47,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:47,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:47,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:47,408 INFO L87 Difference]: Start difference. First operand 13375 states and 71141 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:47,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:47,633 INFO L93 Difference]: Finished difference Result 30183 states and 151843 transitions. [2021-06-05 21:12:47,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:47,633 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:47,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:47,725 INFO L225 Difference]: With dead ends: 30183 [2021-06-05 21:12:47,725 INFO L226 Difference]: Without dead ends: 29312 [2021-06-05 21:12:47,726 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:48,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29312 states. [2021-06-05 21:12:48,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29312 to 13255. [2021-06-05 21:12:48,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13255 states, 13254 states have (on average 5.325863890146371) internal successors, (70589), 13254 states have internal predecessors, (70589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:48,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13255 states to 13255 states and 70589 transitions. [2021-06-05 21:12:48,896 INFO L78 Accepts]: Start accepts. Automaton has 13255 states and 70589 transitions. Word has length 33 [2021-06-05 21:12:48,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:48,896 INFO L482 AbstractCegarLoop]: Abstraction has 13255 states and 70589 transitions. [2021-06-05 21:12:48,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:48,896 INFO L276 IsEmpty]: Start isEmpty. Operand 13255 states and 70589 transitions. [2021-06-05 21:12:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:48,923 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:48,923 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:48,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2021-06-05 21:12:48,923 INFO L430 AbstractCegarLoop]: === Iteration 400 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:48,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1021626413, now seen corresponding path program 393 times [2021-06-05 21:12:48,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:48,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628468327] [2021-06-05 21:12:48,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:49,052 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 21:12:49,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:49,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628468327] [2021-06-05 21:12:49,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628468327] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:49,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:49,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:49,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756479832] [2021-06-05 21:12:49,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:49,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:49,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:49,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:49,053 INFO L87 Difference]: Start difference. First operand 13255 states and 70589 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:49,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:49,289 INFO L93 Difference]: Finished difference Result 30207 states and 151987 transitions. [2021-06-05 21:12:49,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:49,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:49,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:49,379 INFO L225 Difference]: With dead ends: 30207 [2021-06-05 21:12:49,379 INFO L226 Difference]: Without dead ends: 29448 [2021-06-05 21:12:49,379 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 154.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:50,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29448 states. [2021-06-05 21:12:50,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29448 to 13379. [2021-06-05 21:12:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13379 states, 13378 states have (on average 5.314172522051129) internal successors, (71093), 13378 states have internal predecessors, (71093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71093 transitions. [2021-06-05 21:12:50,560 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71093 transitions. Word has length 33 [2021-06-05 21:12:50,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:50,561 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71093 transitions. [2021-06-05 21:12:50,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:50,561 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71093 transitions. [2021-06-05 21:12:50,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:50,587 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:50,587 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:50,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2021-06-05 21:12:50,587 INFO L430 AbstractCegarLoop]: === Iteration 401 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:50,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:50,587 INFO L82 PathProgramCache]: Analyzing trace with hash 972058669, now seen corresponding path program 394 times [2021-06-05 21:12:50,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:50,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452422190] [2021-06-05 21:12:50,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:50,731 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 21:12:50,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:50,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452422190] [2021-06-05 21:12:50,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452422190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:50,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:50,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:50,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263398500] [2021-06-05 21:12:50,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:50,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:50,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:50,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:50,732 INFO L87 Difference]: Start difference. First operand 13379 states and 71093 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:50,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:50,952 INFO L93 Difference]: Finished difference Result 30211 states and 151875 transitions. [2021-06-05 21:12:50,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:50,952 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:50,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:51,041 INFO L225 Difference]: With dead ends: 30211 [2021-06-05 21:12:51,042 INFO L226 Difference]: Without dead ends: 29324 [2021-06-05 21:12:51,042 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:51,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29324 states. [2021-06-05 21:12:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29324 to 13255. [2021-06-05 21:12:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13255 states, 13254 states have (on average 5.321336954881545) internal successors, (70529), 13254 states have internal predecessors, (70529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:52,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13255 states to 13255 states and 70529 transitions. [2021-06-05 21:12:52,242 INFO L78 Accepts]: Start accepts. Automaton has 13255 states and 70529 transitions. Word has length 33 [2021-06-05 21:12:52,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:52,242 INFO L482 AbstractCegarLoop]: Abstraction has 13255 states and 70529 transitions. [2021-06-05 21:12:52,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:52,242 INFO L276 IsEmpty]: Start isEmpty. Operand 13255 states and 70529 transitions. [2021-06-05 21:12:52,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:52,268 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:52,268 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:52,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2021-06-05 21:12:52,268 INFO L430 AbstractCegarLoop]: === Iteration 402 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:52,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:52,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1409631375, now seen corresponding path program 395 times [2021-06-05 21:12:52,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:52,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697519482] [2021-06-05 21:12:52,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:52,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:12:52,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:52,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697519482] [2021-06-05 21:12:52,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697519482] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:52,395 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:52,395 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:52,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23704894] [2021-06-05 21:12:52,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:52,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:52,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:52,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:52,395 INFO L87 Difference]: Start difference. First operand 13255 states and 70529 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:52,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:52,620 INFO L93 Difference]: Finished difference Result 30187 states and 151855 transitions. [2021-06-05 21:12:52,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:52,620 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:52,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:52,710 INFO L225 Difference]: With dead ends: 30187 [2021-06-05 21:12:52,710 INFO L226 Difference]: Without dead ends: 29436 [2021-06-05 21:12:52,710 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:53,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29436 states. [2021-06-05 21:12:53,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29436 to 13375. [2021-06-05 21:12:53,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13375 states, 13374 states have (on average 5.310378346044564) internal successors, (71021), 13374 states have internal predecessors, (71021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:53,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13375 states to 13375 states and 71021 transitions. [2021-06-05 21:12:53,884 INFO L78 Accepts]: Start accepts. Automaton has 13375 states and 71021 transitions. Word has length 33 [2021-06-05 21:12:53,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:53,884 INFO L482 AbstractCegarLoop]: Abstraction has 13375 states and 71021 transitions. [2021-06-05 21:12:53,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:53,885 INFO L276 IsEmpty]: Start isEmpty. Operand 13375 states and 71021 transitions. [2021-06-05 21:12:53,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:53,911 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:53,911 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:53,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2021-06-05 21:12:53,911 INFO L430 AbstractCegarLoop]: === Iteration 403 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:53,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:53,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1344997869, now seen corresponding path program 396 times [2021-06-05 21:12:53,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:53,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117456587] [2021-06-05 21:12:53,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:54,038 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 21:12:54,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:54,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117456587] [2021-06-05 21:12:54,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117456587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:54,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:54,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:54,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607872456] [2021-06-05 21:12:54,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:54,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:54,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:54,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:54,039 INFO L87 Difference]: Start difference. First operand 13375 states and 71021 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:54,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:54,262 INFO L93 Difference]: Finished difference Result 30199 states and 151775 transitions. [2021-06-05 21:12:54,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:54,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:54,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:54,522 INFO L225 Difference]: With dead ends: 30199 [2021-06-05 21:12:54,522 INFO L226 Difference]: Without dead ends: 29256 [2021-06-05 21:12:54,522 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:55,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29256 states. [2021-06-05 21:12:55,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29256 to 13195. [2021-06-05 21:12:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13195 states, 13194 states have (on average 5.327042595118994) internal successors, (70285), 13194 states have internal predecessors, (70285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:55,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13195 states to 13195 states and 70285 transitions. [2021-06-05 21:12:55,521 INFO L78 Accepts]: Start accepts. Automaton has 13195 states and 70285 transitions. Word has length 33 [2021-06-05 21:12:55,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:55,521 INFO L482 AbstractCegarLoop]: Abstraction has 13195 states and 70285 transitions. [2021-06-05 21:12:55,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand 13195 states and 70285 transitions. [2021-06-05 21:12:55,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:55,549 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:55,549 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:55,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2021-06-05 21:12:55,549 INFO L430 AbstractCegarLoop]: === Iteration 404 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:55,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:55,549 INFO L82 PathProgramCache]: Analyzing trace with hash -80806897, now seen corresponding path program 397 times [2021-06-05 21:12:55,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:55,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927153937] [2021-06-05 21:12:55,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:55,676 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 21:12:55,676 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:55,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927153937] [2021-06-05 21:12:55,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927153937] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:55,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:55,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:55,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437663332] [2021-06-05 21:12:55,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:55,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:55,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:55,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:55,677 INFO L87 Difference]: Start difference. First operand 13195 states and 70285 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:56,044 INFO L93 Difference]: Finished difference Result 30131 states and 151707 transitions. [2021-06-05 21:12:56,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:56,044 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:56,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:56,133 INFO L225 Difference]: With dead ends: 30131 [2021-06-05 21:12:56,134 INFO L226 Difference]: Without dead ends: 29372 [2021-06-05 21:12:56,134 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 152.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29372 states. [2021-06-05 21:12:57,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29372 to 13363. [2021-06-05 21:12:57,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.318440353240533) internal successors, (71065), 13362 states have internal predecessors, (71065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71065 transitions. [2021-06-05 21:12:57,180 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71065 transitions. Word has length 33 [2021-06-05 21:12:57,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:57,181 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71065 transitions. [2021-06-05 21:12:57,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71065 transitions. [2021-06-05 21:12:57,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:57,207 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:57,207 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:57,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2021-06-05 21:12:57,207 INFO L430 AbstractCegarLoop]: === Iteration 405 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:57,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:57,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1769053169, now seen corresponding path program 398 times [2021-06-05 21:12:57,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:57,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434354221] [2021-06-05 21:12:57,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:57,438 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 21:12:57,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:57,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434354221] [2021-06-05 21:12:57,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434354221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:57,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:57,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:57,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475187416] [2021-06-05 21:12:57,439 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:57,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:57,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:57,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:57,439 INFO L87 Difference]: Start difference. First operand 13363 states and 71065 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:57,675 INFO L93 Difference]: Finished difference Result 30107 states and 151503 transitions. [2021-06-05 21:12:57,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:57,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:57,764 INFO L225 Difference]: With dead ends: 30107 [2021-06-05 21:12:57,765 INFO L226 Difference]: Without dead ends: 29260 [2021-06-05 21:12:57,765 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 256.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:12:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29260 states. [2021-06-05 21:12:58,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29260 to 13251. [2021-06-05 21:12:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.324150943396226) internal successors, (70545), 13250 states have internal predecessors, (70545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:58,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70545 transitions. [2021-06-05 21:12:58,987 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70545 transitions. Word has length 33 [2021-06-05 21:12:58,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:12:58,987 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70545 transitions. [2021-06-05 21:12:58,987 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:58,987 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70545 transitions. [2021-06-05 21:12:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:12:59,014 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:12:59,014 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:12:59,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2021-06-05 21:12:59,014 INFO L430 AbstractCegarLoop]: === Iteration 406 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:12:59,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:12:59,015 INFO L82 PathProgramCache]: Analyzing trace with hash -2054112915, now seen corresponding path program 399 times [2021-06-05 21:12:59,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:12:59,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873051607] [2021-06-05 21:12:59,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:12:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:12:59,150 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 21:12:59,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:12:59,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873051607] [2021-06-05 21:12:59,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873051607] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:12:59,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:12:59,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:12:59,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494701782] [2021-06-05 21:12:59,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:12:59,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:12:59,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:12:59,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:12:59,151 INFO L87 Difference]: Start difference. First operand 13251 states and 70545 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:12:59,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:12:59,358 INFO L93 Difference]: Finished difference Result 30171 states and 151807 transitions. [2021-06-05 21:12:59,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:12:59,358 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:12:59,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:12:59,447 INFO L225 Difference]: With dead ends: 30171 [2021-06-05 21:12:59,447 INFO L226 Difference]: Without dead ends: 29412 [2021-06-05 21:12:59,448 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:00,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29412 states. [2021-06-05 21:13:00,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29412 to 13375. [2021-06-05 21:13:00,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13375 states, 13374 states have (on average 5.312471960520413) internal successors, (71049), 13374 states have internal predecessors, (71049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:00,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13375 states to 13375 states and 71049 transitions. [2021-06-05 21:13:00,628 INFO L78 Accepts]: Start accepts. Automaton has 13375 states and 71049 transitions. Word has length 33 [2021-06-05 21:13:00,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:00,628 INFO L482 AbstractCegarLoop]: Abstraction has 13375 states and 71049 transitions. [2021-06-05 21:13:00,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 13375 states and 71049 transitions. [2021-06-05 21:13:00,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:00,656 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:00,656 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:00,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2021-06-05 21:13:00,656 INFO L430 AbstractCegarLoop]: === Iteration 407 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:00,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:00,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1613306865, now seen corresponding path program 400 times [2021-06-05 21:13:00,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:00,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570597580] [2021-06-05 21:13:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:00,786 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 21:13:00,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:00,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570597580] [2021-06-05 21:13:00,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570597580] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:00,786 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:00,786 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:00,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89015715] [2021-06-05 21:13:00,786 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:00,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:00,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:00,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:00,787 INFO L87 Difference]: Start difference. First operand 13375 states and 71049 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:01,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:01,000 INFO L93 Difference]: Finished difference Result 30175 states and 151695 transitions. [2021-06-05 21:13:01,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:01,000 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:01,086 INFO L225 Difference]: With dead ends: 30175 [2021-06-05 21:13:01,086 INFO L226 Difference]: Without dead ends: 29288 [2021-06-05 21:13:01,087 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:01,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29288 states. [2021-06-05 21:13:02,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29288 to 13251. [2021-06-05 21:13:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.319924528301887) internal successors, (70489), 13250 states have internal predecessors, (70489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:02,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70489 transitions. [2021-06-05 21:13:02,236 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70489 transitions. Word has length 33 [2021-06-05 21:13:02,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:02,236 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70489 transitions. [2021-06-05 21:13:02,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70489 transitions. [2021-06-05 21:13:02,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:02,263 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:02,263 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:02,263 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2021-06-05 21:13:02,263 INFO L430 AbstractCegarLoop]: === Iteration 408 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:02,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:02,263 INFO L82 PathProgramCache]: Analyzing trace with hash 2135952399, now seen corresponding path program 401 times [2021-06-05 21:13:02,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:02,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926933757] [2021-06-05 21:13:02,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:02,409 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 21:13:02,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:02,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926933757] [2021-06-05 21:13:02,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926933757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:02,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:02,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:02,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951931930] [2021-06-05 21:13:02,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:02,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:02,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:02,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:02,410 INFO L87 Difference]: Start difference. First operand 13251 states and 70489 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:02,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:02,623 INFO L93 Difference]: Finished difference Result 30111 states and 151515 transitions. [2021-06-05 21:13:02,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:02,624 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:02,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:02,708 INFO L225 Difference]: With dead ends: 30111 [2021-06-05 21:13:02,709 INFO L226 Difference]: Without dead ends: 29376 [2021-06-05 21:13:02,709 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:03,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29376 states. [2021-06-05 21:13:03,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29376 to 13363. [2021-06-05 21:13:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.310058374494836) internal successors, (70953), 13362 states have internal predecessors, (70953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:03,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70953 transitions. [2021-06-05 21:13:03,859 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70953 transitions. Word has length 33 [2021-06-05 21:13:03,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:03,859 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70953 transitions. [2021-06-05 21:13:03,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:03,859 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70953 transitions. [2021-06-05 21:13:03,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:03,885 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:03,885 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:03,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2021-06-05 21:13:03,885 INFO L430 AbstractCegarLoop]: === Iteration 409 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:03,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:03,886 INFO L82 PathProgramCache]: Analyzing trace with hash -954365715, now seen corresponding path program 402 times [2021-06-05 21:13:03,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:03,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73902181] [2021-06-05 21:13:03,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:04,031 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 21:13:04,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:04,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73902181] [2021-06-05 21:13:04,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73902181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:04,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:04,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:04,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018011380] [2021-06-05 21:13:04,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:04,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:04,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:04,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:04,032 INFO L87 Difference]: Start difference. First operand 13363 states and 70953 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:04,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:04,255 INFO L93 Difference]: Finished difference Result 30139 states and 151507 transitions. [2021-06-05 21:13:04,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:04,255 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:04,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:04,344 INFO L225 Difference]: With dead ends: 30139 [2021-06-05 21:13:04,345 INFO L226 Difference]: Without dead ends: 29208 [2021-06-05 21:13:04,345 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:05,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29208 states. [2021-06-05 21:13:05,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29208 to 13195. [2021-06-05 21:13:05,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13195 states, 13194 states have (on average 5.324920418371987) internal successors, (70257), 13194 states have internal predecessors, (70257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:05,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13195 states to 13195 states and 70257 transitions. [2021-06-05 21:13:05,509 INFO L78 Accepts]: Start accepts. Automaton has 13195 states and 70257 transitions. Word has length 33 [2021-06-05 21:13:05,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:05,509 INFO L482 AbstractCegarLoop]: Abstraction has 13195 states and 70257 transitions. [2021-06-05 21:13:05,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 13195 states and 70257 transitions. [2021-06-05 21:13:05,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:05,537 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:05,537 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:05,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2021-06-05 21:13:05,537 INFO L430 AbstractCegarLoop]: === Iteration 410 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:05,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:05,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1286159, now seen corresponding path program 403 times [2021-06-05 21:13:05,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:05,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289248639] [2021-06-05 21:13:05,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:05,671 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 21:13:05,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:05,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289248639] [2021-06-05 21:13:05,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289248639] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:05,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:05,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:05,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458783665] [2021-06-05 21:13:05,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:05,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:05,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:05,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:05,672 INFO L87 Difference]: Start difference. First operand 13195 states and 70257 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:05,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:05,884 INFO L93 Difference]: Finished difference Result 30103 states and 151579 transitions. [2021-06-05 21:13:05,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:05,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:05,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:05,979 INFO L225 Difference]: With dead ends: 30103 [2021-06-05 21:13:05,979 INFO L226 Difference]: Without dead ends: 29352 [2021-06-05 21:13:05,979 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:06,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29352 states. [2021-06-05 21:13:07,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29352 to 13363. [2021-06-05 21:13:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.316344858554109) internal successors, (71037), 13362 states have internal predecessors, (71037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:07,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71037 transitions. [2021-06-05 21:13:07,147 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71037 transitions. Word has length 33 [2021-06-05 21:13:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:07,148 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71037 transitions. [2021-06-05 21:13:07,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:07,148 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71037 transitions. [2021-06-05 21:13:07,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:07,174 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:07,174 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:07,174 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2021-06-05 21:13:07,174 INFO L430 AbstractCegarLoop]: === Iteration 411 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:07,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:07,175 INFO L82 PathProgramCache]: Analyzing trace with hash -848083121, now seen corresponding path program 404 times [2021-06-05 21:13:07,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:07,175 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445090501] [2021-06-05 21:13:07,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:07,303 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 21:13:07,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:07,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445090501] [2021-06-05 21:13:07,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445090501] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:07,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:07,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:07,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957535815] [2021-06-05 21:13:07,303 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:07,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:07,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:07,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:07,304 INFO L87 Difference]: Start difference. First operand 13363 states and 71037 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:07,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:07,667 INFO L93 Difference]: Finished difference Result 30087 states and 151403 transitions. [2021-06-05 21:13:07,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:07,667 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:07,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:07,764 INFO L225 Difference]: With dead ends: 30087 [2021-06-05 21:13:07,765 INFO L226 Difference]: Without dead ends: 29240 [2021-06-05 21:13:07,765 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:08,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29240 states. [2021-06-05 21:13:08,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29240 to 13251. [2021-06-05 21:13:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.322037735849056) internal successors, (70517), 13250 states have internal predecessors, (70517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:08,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70517 transitions. [2021-06-05 21:13:08,816 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70517 transitions. Word has length 33 [2021-06-05 21:13:08,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:08,816 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70517 transitions. [2021-06-05 21:13:08,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:08,816 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70517 transitions. [2021-06-05 21:13:08,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:08,843 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:08,843 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:08,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2021-06-05 21:13:08,843 INFO L430 AbstractCegarLoop]: === Iteration 412 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:08,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:08,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1974592177, now seen corresponding path program 405 times [2021-06-05 21:13:08,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:08,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225656110] [2021-06-05 21:13:08,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:08,970 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 21:13:08,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:08,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225656110] [2021-06-05 21:13:08,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225656110] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:08,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:08,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:08,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119883997] [2021-06-05 21:13:08,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:08,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:08,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:08,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:08,971 INFO L87 Difference]: Start difference. First operand 13251 states and 70517 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:09,219 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2021-06-05 21:13:09,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:09,311 INFO L93 Difference]: Finished difference Result 30139 states and 151663 transitions. [2021-06-05 21:13:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:09,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:09,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:09,407 INFO L225 Difference]: With dead ends: 30139 [2021-06-05 21:13:09,407 INFO L226 Difference]: Without dead ends: 29388 [2021-06-05 21:13:09,407 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 282.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:10,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29388 states. [2021-06-05 21:13:10,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29388 to 13371. [2021-06-05 21:13:10,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13371 states, 13370 states have (on average 5.3110695587135375) internal successors, (71009), 13370 states have internal predecessors, (71009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:10,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71009 transitions. [2021-06-05 21:13:10,464 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71009 transitions. Word has length 33 [2021-06-05 21:13:10,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:10,464 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71009 transitions. [2021-06-05 21:13:10,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71009 transitions. [2021-06-05 21:13:10,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:10,591 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:10,591 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:10,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2021-06-05 21:13:10,591 INFO L430 AbstractCegarLoop]: === Iteration 413 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:10,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:10,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1548851889, now seen corresponding path program 406 times [2021-06-05 21:13:10,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:10,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554388712] [2021-06-05 21:13:10,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:10,719 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 21:13:10,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:10,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554388712] [2021-06-05 21:13:10,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554388712] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:10,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:10,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:10,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126761261] [2021-06-05 21:13:10,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:10,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:10,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:10,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:10,720 INFO L87 Difference]: Start difference. First operand 13371 states and 71009 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:10,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:10,930 INFO L93 Difference]: Finished difference Result 30151 states and 151583 transitions. [2021-06-05 21:13:10,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:10,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:10,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:11,023 INFO L225 Difference]: With dead ends: 30151 [2021-06-05 21:13:11,023 INFO L226 Difference]: Without dead ends: 29268 [2021-06-05 21:13:11,023 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 153.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:11,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29268 states. [2021-06-05 21:13:12,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29268 to 13251. [2021-06-05 21:13:12,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13251 states, 13250 states have (on average 5.317811320754717) internal successors, (70461), 13250 states have internal predecessors, (70461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13251 states to 13251 states and 70461 transitions. [2021-06-05 21:13:12,201 INFO L78 Accepts]: Start accepts. Automaton has 13251 states and 70461 transitions. Word has length 33 [2021-06-05 21:13:12,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:12,201 INFO L482 AbstractCegarLoop]: Abstraction has 13251 states and 70461 transitions. [2021-06-05 21:13:12,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:12,201 INFO L276 IsEmpty]: Start isEmpty. Operand 13251 states and 70461 transitions. [2021-06-05 21:13:12,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:12,225 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:12,225 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:12,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2021-06-05 21:13:12,226 INFO L430 AbstractCegarLoop]: === Iteration 414 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:12,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:12,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1463627053, now seen corresponding path program 407 times [2021-06-05 21:13:12,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:12,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651037525] [2021-06-05 21:13:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:12,381 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 21:13:12,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:12,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651037525] [2021-06-05 21:13:12,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651037525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:12,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:12,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:12,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828558788] [2021-06-05 21:13:12,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:12,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:12,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:12,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:12,382 INFO L87 Difference]: Start difference. First operand 13251 states and 70461 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:12,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:12,618 INFO L93 Difference]: Finished difference Result 30099 states and 151443 transitions. [2021-06-05 21:13:12,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:12,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:12,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:12,708 INFO L225 Difference]: With dead ends: 30099 [2021-06-05 21:13:12,709 INFO L226 Difference]: Without dead ends: 29364 [2021-06-05 21:13:12,709 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 181.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:13,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29364 states. [2021-06-05 21:13:13,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29364 to 13363. [2021-06-05 21:13:13,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13363 states, 13362 states have (on average 5.307962879808412) internal successors, (70925), 13362 states have internal predecessors, (70925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:13,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70925 transitions. [2021-06-05 21:13:13,862 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70925 transitions. Word has length 33 [2021-06-05 21:13:13,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:13,862 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70925 transitions. [2021-06-05 21:13:13,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:13,862 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70925 transitions. [2021-06-05 21:13:13,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:13,888 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:13,888 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:13,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2021-06-05 21:13:13,888 INFO L430 AbstractCegarLoop]: === Iteration 415 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:13,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:13,889 INFO L82 PathProgramCache]: Analyzing trace with hash 153046031, now seen corresponding path program 408 times [2021-06-05 21:13:13,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:13,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100307574] [2021-06-05 21:13:13,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:14,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:13:14,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:14,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100307574] [2021-06-05 21:13:14,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100307574] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:14,029 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:14,029 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:14,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722648744] [2021-06-05 21:13:14,029 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:14,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:14,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:14,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:14,029 INFO L87 Difference]: Start difference. First operand 13363 states and 70925 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:14,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:14,247 INFO L93 Difference]: Finished difference Result 30127 states and 151435 transitions. [2021-06-05 21:13:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:14,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:14,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:14,335 INFO L225 Difference]: With dead ends: 30127 [2021-06-05 21:13:14,335 INFO L226 Difference]: Without dead ends: 29168 [2021-06-05 21:13:14,335 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:15,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29168 states. [2021-06-05 21:13:15,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29168 to 13167. [2021-06-05 21:13:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13167 states, 13166 states have (on average 5.328497645450403) internal successors, (70155), 13166 states have internal predecessors, (70155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13167 states to 13167 states and 70155 transitions. [2021-06-05 21:13:15,501 INFO L78 Accepts]: Start accepts. Automaton has 13167 states and 70155 transitions. Word has length 33 [2021-06-05 21:13:15,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:15,502 INFO L482 AbstractCegarLoop]: Abstraction has 13167 states and 70155 transitions. [2021-06-05 21:13:15,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:15,502 INFO L276 IsEmpty]: Start isEmpty. Operand 13167 states and 70155 transitions. [2021-06-05 21:13:15,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:15,528 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:15,528 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:15,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2021-06-05 21:13:15,528 INFO L430 AbstractCegarLoop]: === Iteration 416 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:15,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:15,529 INFO L82 PathProgramCache]: Analyzing trace with hash -2134289491, now seen corresponding path program 409 times [2021-06-05 21:13:15,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:15,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143134578] [2021-06-05 21:13:15,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:15,658 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 21:13:15,658 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:15,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143134578] [2021-06-05 21:13:15,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143134578] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:15,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:15,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:15,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604717888] [2021-06-05 21:13:15,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:15,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:15,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:15,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:15,659 INFO L87 Difference]: Start difference. First operand 13167 states and 70155 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:15,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:15,865 INFO L93 Difference]: Finished difference Result 30273 states and 152346 transitions. [2021-06-05 21:13:15,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:15,865 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:15,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:15,955 INFO L225 Difference]: With dead ends: 30273 [2021-06-05 21:13:15,955 INFO L226 Difference]: Without dead ends: 29514 [2021-06-05 21:13:15,956 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 155.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:16,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29514 states. [2021-06-05 21:13:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29514 to 13377. [2021-06-05 21:13:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13377 states, 13376 states have (on average 5.320424641148326) internal successors, (71166), 13376 states have internal predecessors, (71166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:17,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13377 states to 13377 states and 71166 transitions. [2021-06-05 21:13:17,135 INFO L78 Accepts]: Start accepts. Automaton has 13377 states and 71166 transitions. Word has length 33 [2021-06-05 21:13:17,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 21:13:17,135 INFO L482 AbstractCegarLoop]: Abstraction has 13377 states and 71166 transitions. [2021-06-05 21:13:17,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:17,135 INFO L276 IsEmpty]: Start isEmpty. Operand 13377 states and 71166 transitions. [2021-06-05 21:13:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 21:13:17,162 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 21:13:17,162 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 21:13:17,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2021-06-05 21:13:17,162 INFO L430 AbstractCegarLoop]: === Iteration 417 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 21:13:17,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 21:13:17,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1053226865, now seen corresponding path program 410 times [2021-06-05 21:13:17,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 21:13:17,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881803225] [2021-06-05 21:13:17,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 21:13:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 21:13:17,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 21:13:17,292 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 21:13:17,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881803225] [2021-06-05 21:13:17,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881803225] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 21:13:17,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 21:13:17,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 21:13:17,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563288798] [2021-06-05 21:13:17,292 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 21:13:17,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 21:13:17,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 21:13:17,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 21:13:17,293 INFO L87 Difference]: Start difference. First operand 13377 states and 71166 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 21:13:17,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 21:13:17,503 INFO L93 Difference]: Finished difference Result 30265 states and 152198 transitions. [2021-06-05 21:13:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 21:13:17,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 21:13:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 21:13:17,593 INFO L225 Difference]: With dead ends: 30265 [2021-06-05 21:13:17,594 INFO L226 Difference]: Without dead ends: 29394 [2021-06-05 21:13:17,594 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 156.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 21:13:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29394 states. Received shutdown request... [2021-06-05 21:13:18,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2021-06-05 21:13:18,563 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 21:13:18,564 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 21:13:18,565 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 21:13:18,566 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 09:13:18 BasicIcfg [2021-06-05 21:13:18,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 21:13:18,566 INFO L168 Benchmark]: Toolchain (without parser) took 758834.07 ms. Allocated memory was 348.1 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 327.9 MB in the beginning and 8.0 GB in the end (delta: -7.7 GB). Peak memory consumption was 8.4 GB. Max. memory is 16.0 GB. [2021-06-05 21:13:18,566 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 348.1 MB. Free memory is still 328.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 21:13:18,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.43 ms. Allocated memory is still 348.1 MB. Free memory was 327.9 MB in the beginning and 326.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 21:13:18,566 INFO L168 Benchmark]: Boogie Preprocessor took 12.14 ms. Allocated memory is still 348.1 MB. Free memory was 326.2 MB in the beginning and 325.4 MB in the end (delta: 855.0 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 21:13:18,567 INFO L168 Benchmark]: RCFGBuilder took 210.19 ms. Allocated memory is still 348.1 MB. Free memory was 325.4 MB in the beginning and 313.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 21:13:18,567 INFO L168 Benchmark]: TraceAbstraction took 758570.05 ms. Allocated memory was 348.1 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 312.8 MB in the beginning and 8.0 GB in the end (delta: -7.7 GB). Peak memory consumption was 8.3 GB. Max. memory is 16.0 GB. [2021-06-05 21:13:18,567 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 0.13 ms. Allocated memory is still 348.1 MB. Free memory is still 328.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.43 ms. Allocated memory is still 348.1 MB. Free memory was 327.9 MB in the beginning and 326.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.14 ms. Allocated memory is still 348.1 MB. Free memory was 326.2 MB in the beginning and 325.4 MB in the end (delta: 855.0 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 210.19 ms. Allocated memory is still 348.1 MB. Free memory was 325.4 MB in the beginning and 313.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 758570.05 ms. Allocated memory was 348.1 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 312.8 MB in the beginning and 8.0 GB in the end (delta: -7.7 GB). Peak memory consumption was 8.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 29]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 17 procedures, 76 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 758423.0ms, OverallIterations: 417, TraceHistogramMax: 1, EmptinessCheckTime: 14285.8ms, AutomataDifference: 159912.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12472.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 65401 SDtfs, 81765 SDslu, 166901 SDs, 0 SdLazy, 29077 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17395.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4121 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 3697 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2460 ImplicationChecksByTransitivity, 71938.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=68819occurred in iteration=0, InterpolantAutomatonStates: 4121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 505869.6ms AutomataMinimizationTime, 417 MinimizatonAttempts, 7104429 StatesRemovedByMinimization, 409 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 106.2ms SsaConstructionTime, 383.7ms SatisfiabilityAnalysisTime, 63608.8ms InterpolantComputationTime, 13761 NumberOfCodeBlocks, 13761 NumberOfCodeBlocksAsserted, 417 NumberOfCheckSat, 13344 ConstructedInterpolants, 0 QuantifiedInterpolants, 453703 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 417 InterpolantComputations, 417 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