/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-dev-29289db [2021-06-05 03:41:09,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 03:41:09,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 03:41:09,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 03:41:09,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 03:41:09,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 03:41:09,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 03:41:09,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 03:41:09,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 03:41:09,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 03:41:09,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 03:41:09,598 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 03:41:09,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 03:41:09,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 03:41:09,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 03:41:09,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 03:41:09,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 03:41:09,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 03:41:09,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 03:41:09,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 03:41:09,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 03:41:09,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 03:41:09,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 03:41:09,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 03:41:09,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 03:41:09,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 03:41:09,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 03:41:09,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 03:41:09,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:41:09,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 03:41:09,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 03:41:09,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 03:41:09,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 03:41:09,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 03:41:09,602 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 03:41:09,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 03:41:09,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 03:41:09,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 03:41:09,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 03:41:09,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 03:41:09,944 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 03:41:09,945 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 03:41:09,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl [2021-06-05 03:41:09,946 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl' [2021-06-05 03:41:09,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 03:41:09,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 03:41:09,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 03:41:09,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 03:41:09,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 03:41:10,009 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 03:41:09" (1/1) ... [2021-06-05 03:41:10,017 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 03:41:09" (1/1) ... [2021-06-05 03:41:10,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 03:41:10,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 03:41:10,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 03:41:10,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 03:41:10,034 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 03:41:09" (1/1) ... [2021-06-05 03:41:10,034 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 03:41:09" (1/1) ... [2021-06-05 03:41:10,035 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 03:41:09" (1/1) ... [2021-06-05 03:41:10,035 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 03:41:09" (1/1) ... [2021-06-05 03:41:10,039 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 03:41:09" (1/1) ... [2021-06-05 03:41:10,040 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 03:41:09" (1/1) ... [2021-06-05 03:41:10,040 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 03:41:09" (1/1) ... [2021-06-05 03:41:10,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 03:41:10,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 03:41:10,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 03:41:10,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 03:41:10,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:41:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:41:10,115 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-05 03:41:10,116 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-05 03:41:10,116 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-05 03:41:10,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-05 03:41:10,116 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-05 03:41:10,116 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-05 03:41:10,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-05 03:41:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-05 03:41:10,117 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-05 03:41:10,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-05 03:41:10,117 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-05 03:41:10,118 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-05 03:41:10,118 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-05 03:41:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-05 03:41:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-05 03:41:10,119 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 03:41:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 03:41:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 03:41:10,119 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-05 03:41:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-05 03:41:10,120 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-05 03:41:10,120 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-05 03:41:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-05 03:41:10,121 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-05 03:41:10,122 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-06-05 03:41:10,122 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-06-05 03:41:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-06-05 03:41:10,123 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 03:41:10,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 03:41:10,268 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 03:41:10,269 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:41:10 BoogieIcfgContainer [2021-06-05 03:41:10,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 03:41:10,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 03:41:10,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 03:41:10,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 03:41:10,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:41:09" (1/2) ... [2021-06-05 03:41:10,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7381700e and model type example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:41:10, skipping insertion in model container [2021-06-05 03:41:10,275 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 03:41:10" (2/2) ... [2021-06-05 03:41:10,276 INFO L111 eAbstractionObserver]: Analyzing ICFG example_8.bpl [2021-06-05 03:41:10,281 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 03:41:10,281 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 03:41:10,281 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 03:41:10,282 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 03:41:10,453 INFO L149 ThreadInstanceAdder]: Constructed 64 joinOtherThreadTransitions. [2021-06-05 03:41:10,483 INFO L255 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-06-05 03:41:10,513 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 03:41:10,513 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 03:41:10,513 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 03:41:10,514 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 03:41:10,514 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 03:41:10,514 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 03:41:10,514 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 03:41:10,514 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 03:41:10,530 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 99 transitions, 430 flow [2021-06-05 03:41:22,457 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 03:41:22,740 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 03:41:23,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:23,468 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:23,469 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:23,470 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 03:41:23,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:23,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1841314055, now seen corresponding path program 1 times [2021-06-05 03:41:23,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:23,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770878708] [2021-06-05 03:41:23,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:23,668 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:23,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770878708] [2021-06-05 03:41:23,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770878708] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:23,670 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:23,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:41:23,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105951219] [2021-06-05 03:41:23,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:41:23,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:23,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:41:23,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:23,799 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 03:41:24,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:24,924 INFO L93 Difference]: Finished difference Result 66632 states and 393219 transitions. [2021-06-05 03:41:24,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:41:24,926 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 03:41:24,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:25,663 INFO L225 Difference]: With dead ends: 66632 [2021-06-05 03:41:25,663 INFO L226 Difference]: Without dead ends: 66630 [2021-06-05 03:41:25,664 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:27,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66630 states. [2021-06-05 03:41:30,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66630 to 66630. [2021-06-05 03:41:30,787 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 03:41:31,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66630 states to 66630 states and 393217 transitions. [2021-06-05 03:41:31,607 INFO L78 Accepts]: Start accepts. Automaton has 66630 states and 393217 transitions. Word has length 33 [2021-06-05 03:41:31,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:31,608 INFO L482 AbstractCegarLoop]: Abstraction has 66630 states and 393217 transitions. [2021-06-05 03:41:31,608 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 03:41:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand 66630 states and 393217 transitions. [2021-06-05 03:41:32,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:32,007 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:32,008 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:32,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 03:41:32,008 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 03:41:32,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:32,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1230509281, now seen corresponding path program 1 times [2021-06-05 03:41:32,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:32,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237456309] [2021-06-05 03:41:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:32,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:32,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:32,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237456309] [2021-06-05 03:41:32,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237456309] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:32,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:32,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:41:32,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108836685] [2021-06-05 03:41:32,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:41:32,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:32,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:41:32,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:32,069 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 03:41:32,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:32,842 INFO L93 Difference]: Finished difference Result 59340 states and 340729 transitions. [2021-06-05 03:41:32,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:41:32,842 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 03:41:32,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:33,306 INFO L225 Difference]: With dead ends: 59340 [2021-06-05 03:41:33,307 INFO L226 Difference]: Without dead ends: 59340 [2021-06-05 03:41:33,307 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59340 states. [2021-06-05 03:41:37,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59340 to 59340. [2021-06-05 03:41:37,403 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 03:41:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59340 states to 59340 states and 340729 transitions. [2021-06-05 03:41:38,123 INFO L78 Accepts]: Start accepts. Automaton has 59340 states and 340729 transitions. Word has length 33 [2021-06-05 03:41:38,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:38,125 INFO L482 AbstractCegarLoop]: Abstraction has 59340 states and 340729 transitions. [2021-06-05 03:41:38,125 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 03:41:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 59340 states and 340729 transitions. [2021-06-05 03:41:38,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:38,394 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:38,394 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:38,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 03:41:38,395 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 03:41:38,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:38,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1462759847, now seen corresponding path program 1 times [2021-06-05 03:41:38,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:38,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229623760] [2021-06-05 03:41:38,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:38,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:38,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229623760] [2021-06-05 03:41:38,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229623760] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:38,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:38,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:41:38,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590732047] [2021-06-05 03:41:38,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:41:38,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:38,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:41:38,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:38,470 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 03:41:38,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:38,767 INFO L93 Difference]: Finished difference Result 43707 states and 246391 transitions. [2021-06-05 03:41:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:41:38,768 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 03:41:38,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:38,920 INFO L225 Difference]: With dead ends: 43707 [2021-06-05 03:41:38,920 INFO L226 Difference]: Without dead ends: 43707 [2021-06-05 03:41:38,921 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:40,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43707 states. [2021-06-05 03:41:41,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43707 to 43707. [2021-06-05 03:41:41,706 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 03:41:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43707 states to 43707 states and 246391 transitions. [2021-06-05 03:41:41,878 INFO L78 Accepts]: Start accepts. Automaton has 43707 states and 246391 transitions. Word has length 33 [2021-06-05 03:41:41,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:41,878 INFO L482 AbstractCegarLoop]: Abstraction has 43707 states and 246391 transitions. [2021-06-05 03:41:41,878 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 03:41:41,878 INFO L276 IsEmpty]: Start isEmpty. Operand 43707 states and 246391 transitions. [2021-06-05 03:41:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:42,381 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:42,381 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:42,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 03:41:42,381 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 03:41:42,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:42,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1828753721, now seen corresponding path program 1 times [2021-06-05 03:41:42,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:42,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514101081] [2021-06-05 03:41:42,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:42,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:42,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:42,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514101081] [2021-06-05 03:41:42,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514101081] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:42,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:42,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:41:42,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796401181] [2021-06-05 03:41:42,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:41:42,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:42,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:41:42,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:42,429 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 03:41:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:42,689 INFO L93 Difference]: Finished difference Result 34230 states and 187342 transitions. [2021-06-05 03:41:42,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:41:42,689 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 03:41:42,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:42,805 INFO L225 Difference]: With dead ends: 34230 [2021-06-05 03:41:42,805 INFO L226 Difference]: Without dead ends: 34230 [2021-06-05 03:41:42,805 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:44,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34230 states. [2021-06-05 03:41:44,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34230 to 34230. [2021-06-05 03:41:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34230 states, 34229 states have (on average 5.473195243799117) internal successors, (187342), 34229 states have internal predecessors, (187342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:45,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34230 states to 34230 states and 187342 transitions. [2021-06-05 03:41:45,118 INFO L78 Accepts]: Start accepts. Automaton has 34230 states and 187342 transitions. Word has length 33 [2021-06-05 03:41:45,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:45,118 INFO L482 AbstractCegarLoop]: Abstraction has 34230 states and 187342 transitions. [2021-06-05 03:41:45,118 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 03:41:45,118 INFO L276 IsEmpty]: Start isEmpty. Operand 34230 states and 187342 transitions. [2021-06-05 03:41:45,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:45,198 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:45,198 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:45,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 03:41:45,198 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 03:41:45,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:45,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1417363893, now seen corresponding path program 1 times [2021-06-05 03:41:45,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:45,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329918055] [2021-06-05 03:41:45,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:45,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:45,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329918055] [2021-06-05 03:41:45,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329918055] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:45,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:45,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:41:45,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285556070] [2021-06-05 03:41:45,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:41:45,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:45,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:41:45,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:45,221 INFO L87 Difference]: Start difference. First operand 34230 states and 187342 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 03:41:45,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:45,403 INFO L93 Difference]: Finished difference Result 24672 states and 133261 transitions. [2021-06-05 03:41:45,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:41:45,405 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 03:41:45,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:45,493 INFO L225 Difference]: With dead ends: 24672 [2021-06-05 03:41:45,493 INFO L226 Difference]: Without dead ends: 24672 [2021-06-05 03:41:45,493 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24672 states. [2021-06-05 03:41:47,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24672 to 24672. [2021-06-05 03:41:47,124 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 03:41:47,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24672 states to 24672 states and 133261 transitions. [2021-06-05 03:41:47,221 INFO L78 Accepts]: Start accepts. Automaton has 24672 states and 133261 transitions. Word has length 33 [2021-06-05 03:41:47,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:47,222 INFO L482 AbstractCegarLoop]: Abstraction has 24672 states and 133261 transitions. [2021-06-05 03:41:47,222 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 03:41:47,222 INFO L276 IsEmpty]: Start isEmpty. Operand 24672 states and 133261 transitions. [2021-06-05 03:41:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:47,278 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:47,278 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:47,278 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 03:41:47,278 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 03:41:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:47,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1862524909, now seen corresponding path program 1 times [2021-06-05 03:41:47,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:47,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393400472] [2021-06-05 03:41:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:47,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:47,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393400472] [2021-06-05 03:41:47,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393400472] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:47,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:47,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:41:47,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444635715] [2021-06-05 03:41:47,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:41:47,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:47,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:41:47,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:47,297 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 03:41:47,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:47,776 INFO L93 Difference]: Finished difference Result 17820 states and 95581 transitions. [2021-06-05 03:41:47,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:41:47,783 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 03:41:47,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:47,873 INFO L225 Difference]: With dead ends: 17820 [2021-06-05 03:41:47,873 INFO L226 Difference]: Without dead ends: 17820 [2021-06-05 03:41:47,873 INFO L777 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 03:41:48,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2021-06-05 03:41:48,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 17820. [2021-06-05 03:41:48,834 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 03:41:49,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17820 states to 17820 states and 95581 transitions. [2021-06-05 03:41:49,181 INFO L78 Accepts]: Start accepts. Automaton has 17820 states and 95581 transitions. Word has length 33 [2021-06-05 03:41:49,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:49,182 INFO L482 AbstractCegarLoop]: Abstraction has 17820 states and 95581 transitions. [2021-06-05 03:41:49,182 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 03:41:49,182 INFO L276 IsEmpty]: Start isEmpty. Operand 17820 states and 95581 transitions. [2021-06-05 03:41:49,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:49,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:49,225 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:49,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 03:41:49,225 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 03:41:49,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:49,225 INFO L82 PathProgramCache]: Analyzing trace with hash -757244133, now seen corresponding path program 1 times [2021-06-05 03:41:49,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:49,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810835133] [2021-06-05 03:41:49,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:49,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:49,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810835133] [2021-06-05 03:41:49,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810835133] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:49,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:49,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:41:49,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363833234] [2021-06-05 03:41:49,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:41:49,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:49,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:41:49,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:49,255 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 03:41:49,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:49,338 INFO L93 Difference]: Finished difference Result 13122 states and 69985 transitions. [2021-06-05 03:41:49,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:41:49,339 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 03:41:49,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:49,381 INFO L225 Difference]: With dead ends: 13122 [2021-06-05 03:41:49,381 INFO L226 Difference]: Without dead ends: 13122 [2021-06-05 03:41:49,381 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:41:49,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13122 states. [2021-06-05 03:41:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13122 to 13122. [2021-06-05 03:41:50,176 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 03:41:50,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13122 states to 13122 states and 69985 transitions. [2021-06-05 03:41:50,220 INFO L78 Accepts]: Start accepts. Automaton has 13122 states and 69985 transitions. Word has length 33 [2021-06-05 03:41:50,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:50,220 INFO L482 AbstractCegarLoop]: Abstraction has 13122 states and 69985 transitions. [2021-06-05 03:41:50,220 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 03:41:50,220 INFO L276 IsEmpty]: Start isEmpty. Operand 13122 states and 69985 transitions. [2021-06-05 03:41:50,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:50,440 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:50,440 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:50,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 03:41:50,441 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 03:41:50,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:50,441 INFO L82 PathProgramCache]: Analyzing trace with hash 9427259, now seen corresponding path program 1 times [2021-06-05 03:41:50,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:50,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043361344] [2021-06-05 03:41:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:50,648 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2021-06-05 03:41:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:51,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:51,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043361344] [2021-06-05 03:41:51,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043361344] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:51,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:51,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:41:51,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053452329] [2021-06-05 03:41:51,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:41:51,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:51,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:41:51,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:51,089 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 03:41:51,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:51,511 INFO L93 Difference]: Finished difference Result 31785 states and 159982 transitions. [2021-06-05 03:41:51,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:41:51,511 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 03:41:51,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:51,691 INFO L225 Difference]: With dead ends: 31785 [2021-06-05 03:41:51,692 INFO L226 Difference]: Without dead ends: 31026 [2021-06-05 03:41:51,693 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 385.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:41:52,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31026 states. [2021-06-05 03:41:53,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31026 to 13439. [2021-06-05 03:41:53,268 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 03:41:53,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 71604 transitions. [2021-06-05 03:41:53,368 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 71604 transitions. Word has length 33 [2021-06-05 03:41:53,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:53,374 INFO L482 AbstractCegarLoop]: Abstraction has 13439 states and 71604 transitions. [2021-06-05 03:41:53,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 71604 transitions. [2021-06-05 03:41:53,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:53,412 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:53,412 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:53,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 03:41:53,412 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 03:41:53,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:53,413 INFO L82 PathProgramCache]: Analyzing trace with hash -837369703, now seen corresponding path program 2 times [2021-06-05 03:41:53,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:53,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711158330] [2021-06-05 03:41:53,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:53,835 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 03:41:53,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:53,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711158330] [2021-06-05 03:41:53,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711158330] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:53,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:53,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:41:53,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665964632] [2021-06-05 03:41:53,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:41:53,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:53,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:41:53,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:53,837 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 03:41:54,080 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2021-06-05 03:41:54,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:54,251 INFO L93 Difference]: Finished difference Result 31777 states and 159834 transitions. [2021-06-05 03:41:54,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:41:54,252 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:41:54,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:54,372 INFO L225 Difference]: With dead ends: 31777 [2021-06-05 03:41:54,373 INFO L226 Difference]: Without dead ends: 30906 [2021-06-05 03:41:54,373 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 313.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:41:55,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30906 states. [2021-06-05 03:41:55,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30906 to 13319. [2021-06-05 03:41:55,682 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 03:41:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13319 states to 13319 states and 71052 transitions. [2021-06-05 03:41:55,728 INFO L78 Accepts]: Start accepts. Automaton has 13319 states and 71052 transitions. Word has length 33 [2021-06-05 03:41:55,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:55,728 INFO L482 AbstractCegarLoop]: Abstraction has 13319 states and 71052 transitions. [2021-06-05 03:41:55,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:55,728 INFO L276 IsEmpty]: Start isEmpty. Operand 13319 states and 71052 transitions. [2021-06-05 03:41:55,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:55,756 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:55,756 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:55,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 03:41:55,756 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 03:41:55,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:55,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1760821563, now seen corresponding path program 3 times [2021-06-05 03:41:55,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:55,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573489177] [2021-06-05 03:41:55,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:56,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:56,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573489177] [2021-06-05 03:41:56,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573489177] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:56,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:56,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:41:56,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689453805] [2021-06-05 03:41:56,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:41:56,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:56,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:41:56,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:56,049 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 03:41:56,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:56,640 INFO L93 Difference]: Finished difference Result 31996 states and 160881 transitions. [2021-06-05 03:41:56,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:41:56,640 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 03:41:56,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:56,765 INFO L225 Difference]: With dead ends: 31996 [2021-06-05 03:41:56,766 INFO L226 Difference]: Without dead ends: 31237 [2021-06-05 03:41:56,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 282.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:41:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31237 states. [2021-06-05 03:41:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31237 to 13507. [2021-06-05 03:41:57,835 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 03:41:57,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 71876 transitions. [2021-06-05 03:41:57,880 INFO L78 Accepts]: Start accepts. Automaton has 13507 states and 71876 transitions. Word has length 33 [2021-06-05 03:41:57,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:57,881 INFO L482 AbstractCegarLoop]: Abstraction has 13507 states and 71876 transitions. [2021-06-05 03:41:57,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 13507 states and 71876 transitions. [2021-06-05 03:41:58,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:41:58,170 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:58,170 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:58,171 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 03:41:58,171 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 03:41:58,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:58,171 INFO L82 PathProgramCache]: Analyzing trace with hash -146065093, now seen corresponding path program 4 times [2021-06-05 03:41:58,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:58,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970873994] [2021-06-05 03:41:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:58,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:58,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:58,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970873994] [2021-06-05 03:41:58,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970873994] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:58,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:58,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:41:58,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684960997] [2021-06-05 03:41:58,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:41:58,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:58,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:41:58,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:58,460 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 03:41:58,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:58,753 INFO L93 Difference]: Finished difference Result 32131 states and 161352 transitions. [2021-06-05 03:41:58,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:41:58,753 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 03:41:58,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:58,864 INFO L225 Difference]: With dead ends: 32131 [2021-06-05 03:41:58,864 INFO L226 Difference]: Without dead ends: 31049 [2021-06-05 03:41:58,865 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 251.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:41:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31049 states. [2021-06-05 03:42:00,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31049 to 13319. [2021-06-05 03:42:00,091 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 03:42:00,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13319 states to 13319 states and 70960 transitions. [2021-06-05 03:42:00,136 INFO L78 Accepts]: Start accepts. Automaton has 13319 states and 70960 transitions. Word has length 33 [2021-06-05 03:42:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:00,137 INFO L482 AbstractCegarLoop]: Abstraction has 13319 states and 70960 transitions. [2021-06-05 03:42:00,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:00,137 INFO L276 IsEmpty]: Start isEmpty. Operand 13319 states and 70960 transitions. [2021-06-05 03:42:00,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:00,164 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:00,164 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:00,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 03:42:00,165 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 03:42:00,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:00,165 INFO L82 PathProgramCache]: Analyzing trace with hash 904073497, now seen corresponding path program 5 times [2021-06-05 03:42:00,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:00,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696804083] [2021-06-05 03:42:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:00,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:00,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:00,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696804083] [2021-06-05 03:42:00,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696804083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:00,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:00,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:00,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799596782] [2021-06-05 03:42:00,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:00,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:00,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:00,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:00,432 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 03:42:00,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:00,727 INFO L93 Difference]: Finished difference Result 31976 states and 160717 transitions. [2021-06-05 03:42:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:00,728 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:00,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:00,831 INFO L225 Difference]: With dead ends: 31976 [2021-06-05 03:42:00,831 INFO L226 Difference]: Without dead ends: 31225 [2021-06-05 03:42:00,831 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 258.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:01,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31225 states. [2021-06-05 03:42:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31225 to 13503. [2021-06-05 03:42:02,032 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 03:42:02,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71772 transitions. [2021-06-05 03:42:02,078 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71772 transitions. Word has length 33 [2021-06-05 03:42:02,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:02,078 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71772 transitions. [2021-06-05 03:42:02,078 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 03:42:02,079 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71772 transitions. [2021-06-05 03:42:02,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:02,105 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:02,106 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:02,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 03:42:02,106 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 03:42:02,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:02,106 INFO L82 PathProgramCache]: Analyzing trace with hash 286550139, now seen corresponding path program 6 times [2021-06-05 03:42:02,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:02,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339536663] [2021-06-05 03:42:02,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:02,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:02,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339536663] [2021-06-05 03:42:02,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339536663] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:02,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:02,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:02,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884578501] [2021-06-05 03:42:02,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:02,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:02,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:02,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:02,352 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 03:42:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:02,809 INFO L93 Difference]: Finished difference Result 32119 states and 161220 transitions. [2021-06-05 03:42:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:02,809 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 03:42:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:02,909 INFO L225 Difference]: With dead ends: 32119 [2021-06-05 03:42:02,910 INFO L226 Difference]: Without dead ends: 30949 [2021-06-05 03:42:02,910 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 227.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30949 states. [2021-06-05 03:42:03,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30949 to 13227. [2021-06-05 03:42:03,971 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 03:42:04,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 70556 transitions. [2021-06-05 03:42:04,260 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 70556 transitions. Word has length 33 [2021-06-05 03:42:04,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:04,260 INFO L482 AbstractCegarLoop]: Abstraction has 13227 states and 70556 transitions. [2021-06-05 03:42:04,264 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 03:42:04,264 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 70556 transitions. [2021-06-05 03:42:04,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:04,297 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:04,297 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:04,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 03:42:04,297 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 03:42:04,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:04,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1370978785, now seen corresponding path program 7 times [2021-06-05 03:42:04,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:04,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798335248] [2021-06-05 03:42:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:04,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:04,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:04,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798335248] [2021-06-05 03:42:04,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798335248] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:04,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:04,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:04,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775738651] [2021-06-05 03:42:04,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:04,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:04,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:04,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:04,544 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 03:42:04,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:04,940 INFO L93 Difference]: Finished difference Result 31442 states and 158327 transitions. [2021-06-05 03:42:04,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:04,940 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 03:42:04,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:05,053 INFO L225 Difference]: With dead ends: 31442 [2021-06-05 03:42:05,053 INFO L226 Difference]: Without dead ends: 30683 [2021-06-05 03:42:05,053 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 241.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:05,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30683 states. [2021-06-05 03:42:06,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30683 to 13403. [2021-06-05 03:42:06,304 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 03:42:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13403 states to 13403 states and 71364 transitions. [2021-06-05 03:42:06,350 INFO L78 Accepts]: Start accepts. Automaton has 13403 states and 71364 transitions. Word has length 33 [2021-06-05 03:42:06,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:06,350 INFO L482 AbstractCegarLoop]: Abstraction has 13403 states and 71364 transitions. [2021-06-05 03:42:06,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:06,350 INFO L276 IsEmpty]: Start isEmpty. Operand 13403 states and 71364 transitions. [2021-06-05 03:42:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:06,380 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:06,380 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:06,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 03:42:06,380 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 03:42:06,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:06,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2077191549, now seen corresponding path program 8 times [2021-06-05 03:42:06,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:06,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592749600] [2021-06-05 03:42:06,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:06,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:06,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:06,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592749600] [2021-06-05 03:42:06,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592749600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:06,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:06,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:06,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014277981] [2021-06-05 03:42:06,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:06,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:06,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:06,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:06,584 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 03:42:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:06,881 INFO L93 Difference]: Finished difference Result 31434 states and 158179 transitions. [2021-06-05 03:42:06,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:06,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:06,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:06,980 INFO L225 Difference]: With dead ends: 31434 [2021-06-05 03:42:06,980 INFO L226 Difference]: Without dead ends: 30563 [2021-06-05 03:42:06,980 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 217.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:07,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30563 states. [2021-06-05 03:42:08,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30563 to 13283. [2021-06-05 03:42:08,221 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 03:42:08,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 70816 transitions. [2021-06-05 03:42:08,267 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 70816 transitions. Word has length 33 [2021-06-05 03:42:08,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:08,267 INFO L482 AbstractCegarLoop]: Abstraction has 13283 states and 70816 transitions. [2021-06-05 03:42:08,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:08,267 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 70816 transitions. [2021-06-05 03:42:08,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:08,295 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:08,295 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:08,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 03:42:08,295 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 03:42:08,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:08,296 INFO L82 PathProgramCache]: Analyzing trace with hash 900926973, now seen corresponding path program 9 times [2021-06-05 03:42:08,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:08,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663668303] [2021-06-05 03:42:08,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:08,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:08,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:08,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663668303] [2021-06-05 03:42:08,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663668303] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:08,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:08,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:08,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118602544] [2021-06-05 03:42:08,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:08,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:08,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:08,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:08,500 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 03:42:09,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:09,050 INFO L93 Difference]: Finished difference Result 31418 states and 158171 transitions. [2021-06-05 03:42:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:09,050 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 03:42:09,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:09,169 INFO L225 Difference]: With dead ends: 31418 [2021-06-05 03:42:09,169 INFO L226 Difference]: Without dead ends: 30659 [2021-06-05 03:42:09,169 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 219.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30659 states. [2021-06-05 03:42:10,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30659 to 13395. [2021-06-05 03:42:10,211 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 03:42:10,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71280 transitions. [2021-06-05 03:42:10,257 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71280 transitions. Word has length 33 [2021-06-05 03:42:10,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:10,257 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71280 transitions. [2021-06-05 03:42:10,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:10,257 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71280 transitions. [2021-06-05 03:42:10,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:10,284 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:10,284 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:10,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 03:42:10,284 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 03:42:10,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:10,285 INFO L82 PathProgramCache]: Analyzing trace with hash 104900093, now seen corresponding path program 10 times [2021-06-05 03:42:10,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:10,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315474122] [2021-06-05 03:42:10,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:10,702 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 03:42:10,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:10,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315474122] [2021-06-05 03:42:10,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315474122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:10,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:10,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:10,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562590480] [2021-06-05 03:42:10,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:10,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:10,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:10,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:10,704 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 03:42:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:11,063 INFO L93 Difference]: Finished difference Result 31394 states and 157967 transitions. [2021-06-05 03:42:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:11,063 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 03:42:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:11,171 INFO L225 Difference]: With dead ends: 31394 [2021-06-05 03:42:11,172 INFO L226 Difference]: Without dead ends: 30547 [2021-06-05 03:42:11,172 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 235.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:11,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30547 states. [2021-06-05 03:42:12,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30547 to 13283. [2021-06-05 03:42:12,362 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 03:42:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13283 states to 13283 states and 70760 transitions. [2021-06-05 03:42:12,408 INFO L78 Accepts]: Start accepts. Automaton has 13283 states and 70760 transitions. Word has length 33 [2021-06-05 03:42:12,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:12,409 INFO L482 AbstractCegarLoop]: Abstraction has 13283 states and 70760 transitions. [2021-06-05 03:42:12,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:12,409 INFO L276 IsEmpty]: Start isEmpty. Operand 13283 states and 70760 transitions. [2021-06-05 03:42:12,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:12,436 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:12,436 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:12,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 03:42:12,436 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 03:42:12,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:12,437 INFO L82 PathProgramCache]: Analyzing trace with hash 44178907, now seen corresponding path program 11 times [2021-06-05 03:42:12,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:12,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655879400] [2021-06-05 03:42:12,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:12,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:12,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:12,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655879400] [2021-06-05 03:42:12,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655879400] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:12,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:12,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:12,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931088336] [2021-06-05 03:42:12,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:12,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:12,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:12,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:12,652 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 03:42:12,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:12,948 INFO L93 Difference]: Finished difference Result 31402 states and 158059 transitions. [2021-06-05 03:42:12,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:12,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:12,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:13,045 INFO L225 Difference]: With dead ends: 31402 [2021-06-05 03:42:13,046 INFO L226 Difference]: Without dead ends: 30651 [2021-06-05 03:42:13,046 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 222.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:13,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30651 states. [2021-06-05 03:42:14,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30651 to 13395. [2021-06-05 03:42:14,230 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 03:42:14,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71224 transitions. [2021-06-05 03:42:14,276 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71224 transitions. Word has length 33 [2021-06-05 03:42:14,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:14,277 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71224 transitions. [2021-06-05 03:42:14,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:14,277 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71224 transitions. [2021-06-05 03:42:14,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:14,306 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:14,306 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:14,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 03:42:14,306 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 03:42:14,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:14,306 INFO L82 PathProgramCache]: Analyzing trace with hash -436723139, now seen corresponding path program 12 times [2021-06-05 03:42:14,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:14,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023573766] [2021-06-05 03:42:14,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:14,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:14,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023573766] [2021-06-05 03:42:14,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023573766] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:14,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:14,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:14,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820109980] [2021-06-05 03:42:14,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:14,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:14,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:14,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:14,497 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 03:42:14,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:14,808 INFO L93 Difference]: Finished difference Result 31386 states and 157883 transitions. [2021-06-05 03:42:14,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:14,808 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 03:42:14,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:14,904 INFO L225 Difference]: With dead ends: 31386 [2021-06-05 03:42:14,904 INFO L226 Difference]: Without dead ends: 30483 [2021-06-05 03:42:14,905 INFO L777 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 03:42:15,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30483 states. [2021-06-05 03:42:16,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30483 to 13227. [2021-06-05 03:42:16,155 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 03:42:16,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 70528 transitions. [2021-06-05 03:42:16,200 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 70528 transitions. Word has length 33 [2021-06-05 03:42:16,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:16,200 INFO L482 AbstractCegarLoop]: Abstraction has 13227 states and 70528 transitions. [2021-06-05 03:42:16,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:16,200 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 70528 transitions. [2021-06-05 03:42:16,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:16,227 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:16,227 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:16,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 03:42:16,227 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 03:42:16,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:16,228 INFO L82 PathProgramCache]: Analyzing trace with hash -392502437, now seen corresponding path program 13 times [2021-06-05 03:42:16,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:16,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325527508] [2021-06-05 03:42:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:16,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:16,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:16,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325527508] [2021-06-05 03:42:16,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325527508] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:16,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:16,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:16,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802063754] [2021-06-05 03:42:16,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:16,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:16,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:16,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:16,433 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 03:42:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:16,938 INFO L93 Difference]: Finished difference Result 31725 states and 159654 transitions. [2021-06-05 03:42:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:16,939 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:16,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:17,045 INFO L225 Difference]: With dead ends: 31725 [2021-06-05 03:42:17,046 INFO L226 Difference]: Without dead ends: 30966 [2021-06-05 03:42:17,046 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 222.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:17,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30966 states. [2021-06-05 03:42:18,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30966 to 13427. [2021-06-05 03:42:18,285 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 03:42:18,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13427 states to 13427 states and 71484 transitions. [2021-06-05 03:42:18,331 INFO L78 Accepts]: Start accepts. Automaton has 13427 states and 71484 transitions. Word has length 33 [2021-06-05 03:42:18,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:18,331 INFO L482 AbstractCegarLoop]: Abstraction has 13427 states and 71484 transitions. [2021-06-05 03:42:18,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:18,331 INFO L276 IsEmpty]: Start isEmpty. Operand 13427 states and 71484 transitions. [2021-06-05 03:42:18,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:18,359 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:18,359 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:18,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 03:42:18,359 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 03:42:18,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:18,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1188529317, now seen corresponding path program 14 times [2021-06-05 03:42:18,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:18,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561351732] [2021-06-05 03:42:18,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:18,563 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 03:42:18,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:18,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561351732] [2021-06-05 03:42:18,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561351732] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:18,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:18,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:18,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894748603] [2021-06-05 03:42:18,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:18,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:18,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:18,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:18,565 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 03:42:18,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:18,823 INFO L93 Difference]: Finished difference Result 31701 states and 159450 transitions. [2021-06-05 03:42:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:18,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:18,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:18,924 INFO L225 Difference]: With dead ends: 31701 [2021-06-05 03:42:18,924 INFO L226 Difference]: Without dead ends: 30854 [2021-06-05 03:42:18,924 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 212.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:19,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30854 states. [2021-06-05 03:42:20,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30854 to 13315. [2021-06-05 03:42:20,208 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 03:42:20,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70964 transitions. [2021-06-05 03:42:20,253 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70964 transitions. Word has length 33 [2021-06-05 03:42:20,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:20,253 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70964 transitions. [2021-06-05 03:42:20,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:20,253 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70964 transitions. [2021-06-05 03:42:20,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:20,280 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:20,280 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:20,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 03:42:20,281 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 03:42:20,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:20,281 INFO L82 PathProgramCache]: Analyzing trace with hash -818478403, now seen corresponding path program 15 times [2021-06-05 03:42:20,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:20,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318825188] [2021-06-05 03:42:20,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:20,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:20,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318825188] [2021-06-05 03:42:20,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318825188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:20,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:20,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:20,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892677748] [2021-06-05 03:42:20,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:20,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:20,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:20,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:20,518 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 03:42:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:20,771 INFO L93 Difference]: Finished difference Result 31960 states and 160657 transitions. [2021-06-05 03:42:20,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:20,772 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:20,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:20,870 INFO L225 Difference]: With dead ends: 31960 [2021-06-05 03:42:20,871 INFO L226 Difference]: Without dead ends: 31201 [2021-06-05 03:42:20,871 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 248.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31201 states. [2021-06-05 03:42:22,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31201 to 13503. [2021-06-05 03:42:22,125 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 03:42:22,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71788 transitions. [2021-06-05 03:42:22,170 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71788 transitions. Word has length 33 [2021-06-05 03:42:22,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:22,170 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71788 transitions. [2021-06-05 03:42:22,171 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:22,171 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71788 transitions. [2021-06-05 03:42:22,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:22,198 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:22,198 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:22,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 03:42:22,199 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 03:42:22,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:22,199 INFO L82 PathProgramCache]: Analyzing trace with hash -388777125, now seen corresponding path program 16 times [2021-06-05 03:42:22,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:22,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589400667] [2021-06-05 03:42:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:22,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:22,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589400667] [2021-06-05 03:42:22,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589400667] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:22,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:22,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:22,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022310317] [2021-06-05 03:42:22,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:22,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:22,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:22,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:22,450 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 03:42:22,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:22,899 INFO L93 Difference]: Finished difference Result 32095 states and 161128 transitions. [2021-06-05 03:42:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:22,899 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:22,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:23,021 INFO L225 Difference]: With dead ends: 32095 [2021-06-05 03:42:23,022 INFO L226 Difference]: Without dead ends: 31013 [2021-06-05 03:42:23,022 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 226.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:23,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31013 states. [2021-06-05 03:42:24,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31013 to 13315. [2021-06-05 03:42:24,105 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 03:42:24,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70876 transitions. [2021-06-05 03:42:24,149 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70876 transitions. Word has length 33 [2021-06-05 03:42:24,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:24,149 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70876 transitions. [2021-06-05 03:42:24,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:24,149 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70876 transitions. [2021-06-05 03:42:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:24,176 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:24,177 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:24,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 03:42:24,177 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 03:42:24,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:24,177 INFO L82 PathProgramCache]: Analyzing trace with hash 244429659, now seen corresponding path program 17 times [2021-06-05 03:42:24,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:24,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47181602] [2021-06-05 03:42:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:24,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:24,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47181602] [2021-06-05 03:42:24,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47181602] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:24,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:24,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:24,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491399456] [2021-06-05 03:42:24,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:24,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:24,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:24,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:24,612 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 03:42:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:24,867 INFO L93 Difference]: Finished difference Result 31900 states and 160333 transitions. [2021-06-05 03:42:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:24,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:24,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:24,967 INFO L225 Difference]: With dead ends: 31900 [2021-06-05 03:42:24,967 INFO L226 Difference]: Without dead ends: 31165 [2021-06-05 03:42:24,968 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 234.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:25,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31165 states. [2021-06-05 03:42:26,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31165 to 13491. [2021-06-05 03:42:26,188 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 03:42:26,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71660 transitions. [2021-06-05 03:42:26,233 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71660 transitions. Word has length 33 [2021-06-05 03:42:26,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:26,233 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71660 transitions. [2021-06-05 03:42:26,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:26,233 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71660 transitions. [2021-06-05 03:42:26,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:26,261 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:26,261 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:26,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 03:42:26,261 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 03:42:26,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:26,261 INFO L82 PathProgramCache]: Analyzing trace with hash 319963965, now seen corresponding path program 18 times [2021-06-05 03:42:26,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:26,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666172199] [2021-06-05 03:42:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:26,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:26,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:26,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666172199] [2021-06-05 03:42:26,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666172199] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:26,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:26,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:26,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141862507] [2021-06-05 03:42:26,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:26,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:26,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:26,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:26,486 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 03:42:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:26,724 INFO L93 Difference]: Finished difference Result 32059 states and 160908 transitions. [2021-06-05 03:42:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:26,725 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:26,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:26,824 INFO L225 Difference]: With dead ends: 32059 [2021-06-05 03:42:26,824 INFO L226 Difference]: Without dead ends: 30901 [2021-06-05 03:42:26,824 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 212.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:27,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30901 states. [2021-06-05 03:42:28,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30901 to 13227. [2021-06-05 03:42:28,023 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 03:42:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13227 states to 13227 states and 70484 transitions. [2021-06-05 03:42:28,068 INFO L78 Accepts]: Start accepts. Automaton has 13227 states and 70484 transitions. Word has length 33 [2021-06-05 03:42:28,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:28,068 INFO L482 AbstractCegarLoop]: Abstraction has 13227 states and 70484 transitions. [2021-06-05 03:42:28,068 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 03:42:28,068 INFO L276 IsEmpty]: Start isEmpty. Operand 13227 states and 70484 transitions. [2021-06-05 03:42:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:28,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:28,096 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:28,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 03:42:28,096 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 03:42:28,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:28,096 INFO L82 PathProgramCache]: Analyzing trace with hash 2072640441, now seen corresponding path program 19 times [2021-06-05 03:42:28,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:28,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081996806] [2021-06-05 03:42:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:28,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:28,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081996806] [2021-06-05 03:42:28,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081996806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:28,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:28,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:28,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620572148] [2021-06-05 03:42:28,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:28,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:28,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:28,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:28,300 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 03:42:28,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:28,607 INFO L93 Difference]: Finished difference Result 31697 states and 159510 transitions. [2021-06-05 03:42:28,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:28,607 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:28,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:28,712 INFO L225 Difference]: With dead ends: 31697 [2021-06-05 03:42:28,712 INFO L226 Difference]: Without dead ends: 30946 [2021-06-05 03:42:28,712 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 218.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:29,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30946 states. [2021-06-05 03:42:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30946 to 13427. [2021-06-05 03:42:30,009 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 03:42:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13427 states to 13427 states and 71440 transitions. [2021-06-05 03:42:30,055 INFO L78 Accepts]: Start accepts. Automaton has 13427 states and 71440 transitions. Word has length 33 [2021-06-05 03:42:30,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:30,055 INFO L482 AbstractCegarLoop]: Abstraction has 13427 states and 71440 transitions. [2021-06-05 03:42:30,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:30,055 INFO L276 IsEmpty]: Start isEmpty. Operand 13427 states and 71440 transitions. [2021-06-05 03:42:30,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:30,082 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:30,082 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:30,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 03:42:30,082 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 03:42:30,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:30,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1591738395, now seen corresponding path program 20 times [2021-06-05 03:42:30,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:30,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293393948] [2021-06-05 03:42:30,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:30,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:30,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:30,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293393948] [2021-06-05 03:42:30,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293393948] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:30,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:30,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:30,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893781842] [2021-06-05 03:42:30,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:30,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:30,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:30,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:30,298 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 03:42:30,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:30,753 INFO L93 Difference]: Finished difference Result 31681 states and 159334 transitions. [2021-06-05 03:42:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:30,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:30,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:30,854 INFO L225 Difference]: With dead ends: 31681 [2021-06-05 03:42:30,854 INFO L226 Difference]: Without dead ends: 30834 [2021-06-05 03:42:30,855 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 233.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30834 states. [2021-06-05 03:42:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30834 to 13315. [2021-06-05 03:42:31,899 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 03:42:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70920 transitions. [2021-06-05 03:42:32,181 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70920 transitions. Word has length 33 [2021-06-05 03:42:32,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:32,181 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70920 transitions. [2021-06-05 03:42:32,181 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 03:42:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70920 transitions. [2021-06-05 03:42:32,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:32,212 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:32,212 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:32,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 03:42:32,212 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 03:42:32,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:32,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1646664475, now seen corresponding path program 21 times [2021-06-05 03:42:32,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:32,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450697251] [2021-06-05 03:42:32,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:32,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:32,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:32,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450697251] [2021-06-05 03:42:32,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450697251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:32,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:32,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:32,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409342623] [2021-06-05 03:42:32,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:32,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:32,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:32,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:32,430 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 03:42:32,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:32,718 INFO L93 Difference]: Finished difference Result 31928 states and 160497 transitions. [2021-06-05 03:42:32,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:32,718 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:32,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:32,826 INFO L225 Difference]: With dead ends: 31928 [2021-06-05 03:42:32,826 INFO L226 Difference]: Without dead ends: 31177 [2021-06-05 03:42:32,826 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 234.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:33,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31177 states. [2021-06-05 03:42:34,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31177 to 13499. [2021-06-05 03:42:34,072 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 03:42:34,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13499 states to 13499 states and 71732 transitions. [2021-06-05 03:42:34,118 INFO L78 Accepts]: Start accepts. Automaton has 13499 states and 71732 transitions. Word has length 33 [2021-06-05 03:42:34,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:34,118 INFO L482 AbstractCegarLoop]: Abstraction has 13499 states and 71732 transitions. [2021-06-05 03:42:34,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:34,118 INFO L276 IsEmpty]: Start isEmpty. Operand 13499 states and 71732 transitions. [2021-06-05 03:42:34,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:34,146 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:34,146 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:34,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 03:42:34,146 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 03:42:34,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:34,147 INFO L82 PathProgramCache]: Analyzing trace with hash -929238245, now seen corresponding path program 22 times [2021-06-05 03:42:34,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:34,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470991041] [2021-06-05 03:42:34,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:34,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:34,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:34,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470991041] [2021-06-05 03:42:34,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470991041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:34,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:34,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:34,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715081434] [2021-06-05 03:42:34,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:34,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:34,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:34,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:34,347 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 03:42:34,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:34,591 INFO L93 Difference]: Finished difference Result 32071 states and 161000 transitions. [2021-06-05 03:42:34,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:34,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:34,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:34,689 INFO L225 Difference]: With dead ends: 32071 [2021-06-05 03:42:34,689 INFO L226 Difference]: Without dead ends: 30993 [2021-06-05 03:42:34,690 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 191.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:35,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30993 states. [2021-06-05 03:42:35,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30993 to 13315. [2021-06-05 03:42:35,946 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 03:42:35,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70832 transitions. [2021-06-05 03:42:35,992 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70832 transitions. Word has length 33 [2021-06-05 03:42:35,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:35,992 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70832 transitions. [2021-06-05 03:42:35,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:35,993 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70832 transitions. [2021-06-05 03:42:36,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:36,020 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:36,020 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:36,020 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 03:42:36,020 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 03:42:36,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:36,020 INFO L82 PathProgramCache]: Analyzing trace with hash 857278205, now seen corresponding path program 23 times [2021-06-05 03:42:36,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:36,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905249201] [2021-06-05 03:42:36,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:36,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:36,241 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905249201] [2021-06-05 03:42:36,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905249201] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:36,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:36,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:36,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735123988] [2021-06-05 03:42:36,241 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:36,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:36,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:36,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:36,242 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 03:42:36,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:36,482 INFO L93 Difference]: Finished difference Result 31888 states and 160245 transitions. [2021-06-05 03:42:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:36,483 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:36,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:36,583 INFO L225 Difference]: With dead ends: 31888 [2021-06-05 03:42:36,583 INFO L226 Difference]: Without dead ends: 31153 [2021-06-05 03:42:36,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 214.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:37,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31153 states. [2021-06-05 03:42:37,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31153 to 13491. [2021-06-05 03:42:37,847 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 03:42:37,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71616 transitions. [2021-06-05 03:42:37,899 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71616 transitions. Word has length 33 [2021-06-05 03:42:37,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:37,899 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71616 transitions. [2021-06-05 03:42:37,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:37,899 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71616 transitions. [2021-06-05 03:42:37,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:37,927 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:37,927 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:37,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 03:42:37,927 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 03:42:37,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:37,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1096125605, now seen corresponding path program 24 times [2021-06-05 03:42:37,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:37,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405973167] [2021-06-05 03:42:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:38,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:38,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405973167] [2021-06-05 03:42:38,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405973167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:38,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:38,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:38,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938844546] [2021-06-05 03:42:38,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:38,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:38,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:38,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:38,149 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 03:42:38,455 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-06-05 03:42:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:38,608 INFO L93 Difference]: Finished difference Result 32047 states and 160820 transitions. [2021-06-05 03:42:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:38,608 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:38,730 INFO L225 Difference]: With dead ends: 32047 [2021-06-05 03:42:38,730 INFO L226 Difference]: Without dead ends: 30845 [2021-06-05 03:42:38,731 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 377.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:39,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30845 states. [2021-06-05 03:42:39,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30845 to 13183. [2021-06-05 03:42:39,783 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 03:42:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70310 transitions. [2021-06-05 03:42:40,045 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70310 transitions. Word has length 33 [2021-06-05 03:42:40,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:40,045 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70310 transitions. [2021-06-05 03:42:40,045 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 03:42:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70310 transitions. [2021-06-05 03:42:40,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:40,072 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:40,072 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:40,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 03:42:40,072 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 03:42:40,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:40,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1900453661, now seen corresponding path program 25 times [2021-06-05 03:42:40,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:40,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314219621] [2021-06-05 03:42:40,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:40,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:40,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314219621] [2021-06-05 03:42:40,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314219621] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:40,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:40,285 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:40,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010345244] [2021-06-05 03:42:40,285 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:40,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:40,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:40,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:40,285 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 03:42:40,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:40,544 INFO L93 Difference]: Finished difference Result 32010 states and 160923 transitions. [2021-06-05 03:42:40,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:40,544 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:40,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:40,643 INFO L225 Difference]: With dead ends: 32010 [2021-06-05 03:42:40,643 INFO L226 Difference]: Without dead ends: 31251 [2021-06-05 03:42:40,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 215.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:41,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31251 states. [2021-06-05 03:42:41,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31251 to 13457. [2021-06-05 03:42:41,935 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 03:42:41,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13457 states to 13457 states and 71673 transitions. [2021-06-05 03:42:41,980 INFO L78 Accepts]: Start accepts. Automaton has 13457 states and 71673 transitions. Word has length 33 [2021-06-05 03:42:41,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:41,980 INFO L482 AbstractCegarLoop]: Abstraction has 13457 states and 71673 transitions. [2021-06-05 03:42:41,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:41,980 INFO L276 IsEmpty]: Start isEmpty. Operand 13457 states and 71673 transitions. [2021-06-05 03:42:42,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:42,007 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:42,007 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:42,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 03:42:42,008 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 03:42:42,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:42,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1053656699, now seen corresponding path program 26 times [2021-06-05 03:42:42,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:42,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205016544] [2021-06-05 03:42:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:42,182 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 03:42:42,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:42,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205016544] [2021-06-05 03:42:42,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205016544] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:42,183 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:42,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:42,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486543444] [2021-06-05 03:42:42,183 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:42,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:42,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:42,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:42,183 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 03:42:42,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:42,423 INFO L93 Difference]: Finished difference Result 32002 states and 160775 transitions. [2021-06-05 03:42:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:42,423 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:42,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:42,522 INFO L225 Difference]: With dead ends: 32002 [2021-06-05 03:42:42,522 INFO L226 Difference]: Without dead ends: 31131 [2021-06-05 03:42:42,523 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31131 states. [2021-06-05 03:42:43,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31131 to 13337. [2021-06-05 03:42:43,777 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 03:42:43,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13337 states to 13337 states and 71121 transitions. [2021-06-05 03:42:43,822 INFO L78 Accepts]: Start accepts. Automaton has 13337 states and 71121 transitions. Word has length 33 [2021-06-05 03:42:43,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:43,822 INFO L482 AbstractCegarLoop]: Abstraction has 13337 states and 71121 transitions. [2021-06-05 03:42:43,822 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 03:42:43,822 INFO L276 IsEmpty]: Start isEmpty. Operand 13337 states and 71121 transitions. [2021-06-05 03:42:43,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:43,850 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:43,850 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:43,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 03:42:43,850 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 03:42:43,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:43,850 INFO L82 PathProgramCache]: Analyzing trace with hash -643119331, now seen corresponding path program 27 times [2021-06-05 03:42:43,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:43,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059036093] [2021-06-05 03:42:43,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:44,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:44,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059036093] [2021-06-05 03:42:44,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059036093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:44,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:44,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:44,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858993024] [2021-06-05 03:42:44,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:44,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:44,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:44,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:44,070 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 03:42:44,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:44,388 INFO L93 Difference]: Finished difference Result 32221 states and 161822 transitions. [2021-06-05 03:42:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:44,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:44,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:44,494 INFO L225 Difference]: With dead ends: 32221 [2021-06-05 03:42:44,494 INFO L226 Difference]: Without dead ends: 31462 [2021-06-05 03:42:44,494 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 241.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:45,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31462 states. [2021-06-05 03:42:45,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31462 to 13525. [2021-06-05 03:42:45,771 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 03:42:45,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13525 states to 13525 states and 71945 transitions. [2021-06-05 03:42:45,817 INFO L78 Accepts]: Start accepts. Automaton has 13525 states and 71945 transitions. Word has length 33 [2021-06-05 03:42:45,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:45,817 INFO L482 AbstractCegarLoop]: Abstraction has 13525 states and 71945 transitions. [2021-06-05 03:42:45,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:45,817 INFO L276 IsEmpty]: Start isEmpty. Operand 13525 states and 71945 transitions. [2021-06-05 03:42:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:45,845 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:45,845 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:45,845 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 03:42:45,845 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 03:42:45,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:45,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1744961309, now seen corresponding path program 28 times [2021-06-05 03:42:45,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:45,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934320941] [2021-06-05 03:42:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:46,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:46,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:46,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934320941] [2021-06-05 03:42:46,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934320941] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:46,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:46,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:46,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667496287] [2021-06-05 03:42:46,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:46,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:46,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:46,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:46,031 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 03:42:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:46,435 INFO L93 Difference]: Finished difference Result 32356 states and 162293 transitions. [2021-06-05 03:42:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:46,435 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:46,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:46,537 INFO L225 Difference]: With dead ends: 32356 [2021-06-05 03:42:46,537 INFO L226 Difference]: Without dead ends: 31274 [2021-06-05 03:42:46,538 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:47,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31274 states. [2021-06-05 03:42:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31274 to 13337. [2021-06-05 03:42:47,607 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 03:42:47,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13337 states to 13337 states and 71029 transitions. [2021-06-05 03:42:47,894 INFO L78 Accepts]: Start accepts. Automaton has 13337 states and 71029 transitions. Word has length 33 [2021-06-05 03:42:47,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:47,894 INFO L482 AbstractCegarLoop]: Abstraction has 13337 states and 71029 transitions. [2021-06-05 03:42:47,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:47,895 INFO L276 IsEmpty]: Start isEmpty. Operand 13337 states and 71029 transitions. [2021-06-05 03:42:47,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:47,924 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:47,924 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:47,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 03:42:47,924 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 03:42:47,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:47,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1499867397, now seen corresponding path program 29 times [2021-06-05 03:42:47,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:47,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116682102] [2021-06-05 03:42:47,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:48,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:48,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116682102] [2021-06-05 03:42:48,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116682102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:48,143 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:48,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:48,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196637454] [2021-06-05 03:42:48,143 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:48,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:48,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:48,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:48,144 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 03:42:48,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:48,453 INFO L93 Difference]: Finished difference Result 32201 states and 161658 transitions. [2021-06-05 03:42:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:48,453 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:48,556 INFO L225 Difference]: With dead ends: 32201 [2021-06-05 03:42:48,556 INFO L226 Difference]: Without dead ends: 31450 [2021-06-05 03:42:48,557 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 233.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:49,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31450 states. [2021-06-05 03:42:49,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31450 to 13521. [2021-06-05 03:42:49,821 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 03:42:49,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 71841 transitions. [2021-06-05 03:42:49,865 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 71841 transitions. Word has length 33 [2021-06-05 03:42:49,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:49,866 INFO L482 AbstractCegarLoop]: Abstraction has 13521 states and 71841 transitions. [2021-06-05 03:42:49,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 71841 transitions. [2021-06-05 03:42:49,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:49,894 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:49,894 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:49,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 03:42:49,894 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 03:42:49,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:49,894 INFO L82 PathProgramCache]: Analyzing trace with hash -2117390755, now seen corresponding path program 30 times [2021-06-05 03:42:49,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:49,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765785966] [2021-06-05 03:42:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:50,088 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:50,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765785966] [2021-06-05 03:42:50,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765785966] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:50,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:50,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:50,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593964765] [2021-06-05 03:42:50,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:50,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:50,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:50,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:50,089 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 03:42:50,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:50,341 INFO L93 Difference]: Finished difference Result 32344 states and 162161 transitions. [2021-06-05 03:42:50,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:50,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:50,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:50,441 INFO L225 Difference]: With dead ends: 32344 [2021-06-05 03:42:50,441 INFO L226 Difference]: Without dead ends: 31174 [2021-06-05 03:42:50,442 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31174 states. [2021-06-05 03:42:51,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31174 to 13245. [2021-06-05 03:42:51,700 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 03:42:51,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 70623 transitions. [2021-06-05 03:42:51,746 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 70623 transitions. Word has length 33 [2021-06-05 03:42:51,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:51,746 INFO L482 AbstractCegarLoop]: Abstraction has 13245 states and 70623 transitions. [2021-06-05 03:42:51,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:51,746 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 70623 transitions. [2021-06-05 03:42:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:51,774 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:51,774 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:51,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 03:42:51,774 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 03:42:51,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:51,775 INFO L82 PathProgramCache]: Analyzing trace with hash -474558307, now seen corresponding path program 31 times [2021-06-05 03:42:51,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:51,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412634916] [2021-06-05 03:42:51,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:51,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:51,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:51,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412634916] [2021-06-05 03:42:51,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412634916] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:51,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:51,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:51,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098232635] [2021-06-05 03:42:51,948 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:51,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:51,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:51,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:51,949 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 03:42:52,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:52,206 INFO L93 Difference]: Finished difference Result 31721 states and 159483 transitions. [2021-06-05 03:42:52,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:52,207 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 03:42:52,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:52,304 INFO L225 Difference]: With dead ends: 31721 [2021-06-05 03:42:52,304 INFO L226 Difference]: Without dead ends: 30962 [2021-06-05 03:42:52,304 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:53,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30962 states. [2021-06-05 03:42:53,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30962 to 13425. [2021-06-05 03:42:53,586 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 03:42:53,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13425 states to 13425 states and 71451 transitions. [2021-06-05 03:42:53,631 INFO L78 Accepts]: Start accepts. Automaton has 13425 states and 71451 transitions. Word has length 33 [2021-06-05 03:42:53,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:53,632 INFO L482 AbstractCegarLoop]: Abstraction has 13425 states and 71451 transitions. [2021-06-05 03:42:53,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 13425 states and 71451 transitions. [2021-06-05 03:42:53,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:53,659 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:53,659 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:53,659 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 03:42:53,659 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 03:42:53,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:53,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1321355269, now seen corresponding path program 32 times [2021-06-05 03:42:53,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:53,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899453452] [2021-06-05 03:42:53,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:53,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:53,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899453452] [2021-06-05 03:42:53,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899453452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:53,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:53,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:53,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040937484] [2021-06-05 03:42:53,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:53,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:53,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:53,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:53,829 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 03:42:54,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:54,425 INFO L93 Difference]: Finished difference Result 31713 states and 159335 transitions. [2021-06-05 03:42:54,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:54,425 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 03:42:54,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:54,530 INFO L225 Difference]: With dead ends: 31713 [2021-06-05 03:42:54,530 INFO L226 Difference]: Without dead ends: 30842 [2021-06-05 03:42:54,530 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:55,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30842 states. [2021-06-05 03:42:55,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30842 to 13305. [2021-06-05 03:42:55,591 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 03:42:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13305 states to 13305 states and 70899 transitions. [2021-06-05 03:42:55,636 INFO L78 Accepts]: Start accepts. Automaton has 13305 states and 70899 transitions. Word has length 33 [2021-06-05 03:42:55,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:55,636 INFO L482 AbstractCegarLoop]: Abstraction has 13305 states and 70899 transitions. [2021-06-05 03:42:55,636 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 13305 states and 70899 transitions. [2021-06-05 03:42:55,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:55,663 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:55,663 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:55,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 03:42:55,663 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 03:42:55,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:55,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1929909563, now seen corresponding path program 33 times [2021-06-05 03:42:55,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:55,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735757677] [2021-06-05 03:42:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:56,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:56,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:56,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735757677] [2021-06-05 03:42:56,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735757677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:56,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:56,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:56,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720424306] [2021-06-05 03:42:56,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:56,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:56,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:56,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:56,014 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 03:42:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:56,332 INFO L93 Difference]: Finished difference Result 31739 states and 159484 transitions. [2021-06-05 03:42:56,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:56,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:42:56,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:56,459 INFO L225 Difference]: With dead ends: 31739 [2021-06-05 03:42:56,459 INFO L226 Difference]: Without dead ends: 30980 [2021-06-05 03:42:56,460 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 208.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:57,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30980 states. [2021-06-05 03:42:57,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30980 to 13429. [2021-06-05 03:42:57,706 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 03:42:57,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 71403 transitions. [2021-06-05 03:42:57,751 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 71403 transitions. Word has length 33 [2021-06-05 03:42:57,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:57,751 INFO L482 AbstractCegarLoop]: Abstraction has 13429 states and 71403 transitions. [2021-06-05 03:42:57,751 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 03:42:57,751 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 71403 transitions. [2021-06-05 03:42:57,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:57,778 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:57,779 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:57,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 03:42:57,779 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 03:42:57,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:57,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1939317445, now seen corresponding path program 34 times [2021-06-05 03:42:57,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:57,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744138841] [2021-06-05 03:42:57,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:57,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:57,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744138841] [2021-06-05 03:42:57,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744138841] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:57,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:57,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:57,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987517067] [2021-06-05 03:42:57,948 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:57,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:57,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:57,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:57,948 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 03:42:58,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:58,236 INFO L93 Difference]: Finished difference Result 31745 states and 159377 transitions. [2021-06-05 03:42:58,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:42:58,236 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 03:42:58,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:58,334 INFO L225 Difference]: With dead ends: 31745 [2021-06-05 03:42:58,335 INFO L226 Difference]: Without dead ends: 30856 [2021-06-05 03:42:58,335 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:42:59,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30856 states. [2021-06-05 03:42:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30856 to 13305. [2021-06-05 03:42:59,530 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 03:42:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13305 states to 13305 states and 70839 transitions. [2021-06-05 03:42:59,576 INFO L78 Accepts]: Start accepts. Automaton has 13305 states and 70839 transitions. Word has length 33 [2021-06-05 03:42:59,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:59,576 INFO L482 AbstractCegarLoop]: Abstraction has 13305 states and 70839 transitions. [2021-06-05 03:42:59,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:59,576 INFO L276 IsEmpty]: Start isEmpty. Operand 13305 states and 70839 transitions. [2021-06-05 03:42:59,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:42:59,603 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:59,603 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:59,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 03:42:59,603 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 03:42:59,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:59,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1073161497, now seen corresponding path program 35 times [2021-06-05 03:42:59,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:59,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814779105] [2021-06-05 03:42:59,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:59,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:59,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814779105] [2021-06-05 03:42:59,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814779105] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:59,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:59,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:42:59,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546445035] [2021-06-05 03:42:59,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:42:59,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:59,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:42:59,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:59,780 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 03:43:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:00,033 INFO L93 Difference]: Finished difference Result 31719 states and 159352 transitions. [2021-06-05 03:43:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:00,033 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:00,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:00,131 INFO L225 Difference]: With dead ends: 31719 [2021-06-05 03:43:00,131 INFO L226 Difference]: Without dead ends: 30968 [2021-06-05 03:43:00,131 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:01,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30968 states. [2021-06-05 03:43:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30968 to 13425. [2021-06-05 03:43:01,424 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 03:43:01,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13425 states to 13425 states and 71331 transitions. [2021-06-05 03:43:01,469 INFO L78 Accepts]: Start accepts. Automaton has 13425 states and 71331 transitions. Word has length 33 [2021-06-05 03:43:01,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:01,469 INFO L482 AbstractCegarLoop]: Abstraction has 13425 states and 71331 transitions. [2021-06-05 03:43:01,469 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 03:43:01,469 INFO L276 IsEmpty]: Start isEmpty. Operand 13425 states and 71331 transitions. [2021-06-05 03:43:01,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:01,496 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:01,496 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:01,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 03:43:01,496 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 03:43:01,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:01,497 INFO L82 PathProgramCache]: Analyzing trace with hash -237419525, now seen corresponding path program 36 times [2021-06-05 03:43:01,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:01,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950132279] [2021-06-05 03:43:01,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:01,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:01,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:01,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950132279] [2021-06-05 03:43:01,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950132279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:01,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:01,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:01,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695850551] [2021-06-05 03:43:01,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:01,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:01,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:01,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:01,696 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 03:43:01,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:01,957 INFO L93 Difference]: Finished difference Result 31733 states and 159277 transitions. [2021-06-05 03:43:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:01,957 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 03:43:01,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:02,303 INFO L225 Difference]: With dead ends: 31733 [2021-06-05 03:43:02,303 INFO L226 Difference]: Without dead ends: 30788 [2021-06-05 03:43:02,304 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 212.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:03,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30788 states. [2021-06-05 03:43:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30788 to 13245. [2021-06-05 03:43:03,358 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 03:43:03,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 70593 transitions. [2021-06-05 03:43:03,405 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 70593 transitions. Word has length 33 [2021-06-05 03:43:03,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:03,405 INFO L482 AbstractCegarLoop]: Abstraction has 13245 states and 70593 transitions. [2021-06-05 03:43:03,405 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 03:43:03,405 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 70593 transitions. [2021-06-05 03:43:03,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:03,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:03,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:03,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 03:43:03,438 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 03:43:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:03,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1711091003, now seen corresponding path program 37 times [2021-06-05 03:43:03,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:03,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695293615] [2021-06-05 03:43:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:03,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:03,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:03,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695293615] [2021-06-05 03:43:03,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695293615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:03,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:03,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:03,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540424849] [2021-06-05 03:43:03,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:03,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:03,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:03,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:03,641 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 03:43:04,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:04,283 INFO L93 Difference]: Finished difference Result 32344 states and 162302 transitions. [2021-06-05 03:43:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:04,284 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:04,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:04,410 INFO L225 Difference]: With dead ends: 32344 [2021-06-05 03:43:04,411 INFO L226 Difference]: Without dead ends: 31585 [2021-06-05 03:43:04,411 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 230.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:05,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31585 states. [2021-06-05 03:43:05,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31585 to 13559. [2021-06-05 03:43:05,666 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 03:43:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13559 states to 13559 states and 72082 transitions. [2021-06-05 03:43:05,981 INFO L78 Accepts]: Start accepts. Automaton has 13559 states and 72082 transitions. Word has length 33 [2021-06-05 03:43:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:05,981 INFO L482 AbstractCegarLoop]: Abstraction has 13559 states and 72082 transitions. [2021-06-05 03:43:05,981 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 03:43:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 13559 states and 72082 transitions. [2021-06-05 03:43:06,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:06,009 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:06,010 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:06,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 03:43:06,010 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 03:43:06,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:06,010 INFO L82 PathProgramCache]: Analyzing trace with hash -195795653, now seen corresponding path program 38 times [2021-06-05 03:43:06,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:06,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554188352] [2021-06-05 03:43:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:06,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:06,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554188352] [2021-06-05 03:43:06,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554188352] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:06,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:06,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:06,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144708663] [2021-06-05 03:43:06,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:06,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:06,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:06,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:06,179 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 03:43:06,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:06,454 INFO L93 Difference]: Finished difference Result 32479 states and 162773 transitions. [2021-06-05 03:43:06,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:06,455 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 03:43:06,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:06,556 INFO L225 Difference]: With dead ends: 32479 [2021-06-05 03:43:06,557 INFO L226 Difference]: Without dead ends: 31397 [2021-06-05 03:43:06,557 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:07,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31397 states. [2021-06-05 03:43:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31397 to 13371. [2021-06-05 03:43:07,847 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 03:43:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71164 transitions. [2021-06-05 03:43:07,894 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71164 transitions. Word has length 33 [2021-06-05 03:43:07,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:07,894 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71164 transitions. [2021-06-05 03:43:07,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:07,894 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71164 transitions. [2021-06-05 03:43:07,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:07,921 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:07,921 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:07,921 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 03:43:07,922 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 03:43:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:07,922 INFO L82 PathProgramCache]: Analyzing trace with hash -874274531, now seen corresponding path program 39 times [2021-06-05 03:43:07,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:07,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338451656] [2021-06-05 03:43:07,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:08,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:08,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338451656] [2021-06-05 03:43:08,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338451656] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:08,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:08,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:08,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612186859] [2021-06-05 03:43:08,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:08,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:08,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:08,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:08,090 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 03:43:08,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:08,433 INFO L93 Difference]: Finished difference Result 32151 states and 161310 transitions. [2021-06-05 03:43:08,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:08,434 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:08,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:08,541 INFO L225 Difference]: With dead ends: 32151 [2021-06-05 03:43:08,541 INFO L226 Difference]: Without dead ends: 31392 [2021-06-05 03:43:08,541 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:09,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31392 states. [2021-06-05 03:43:09,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31392 to 13495. [2021-06-05 03:43:09,812 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 03:43:09,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71668 transitions. [2021-06-05 03:43:09,858 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71668 transitions. Word has length 33 [2021-06-05 03:43:09,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:09,858 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71668 transitions. [2021-06-05 03:43:09,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:09,858 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71668 transitions. [2021-06-05 03:43:09,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:09,885 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:09,885 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:09,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 03:43:09,886 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 03:43:09,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:09,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1818395963, now seen corresponding path program 40 times [2021-06-05 03:43:09,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:09,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127273453] [2021-06-05 03:43:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:10,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:10,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127273453] [2021-06-05 03:43:10,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127273453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:10,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:10,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:10,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572811767] [2021-06-05 03:43:10,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:10,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:10,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:10,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:10,073 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 03:43:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:10,328 INFO L93 Difference]: Finished difference Result 32157 states and 161203 transitions. [2021-06-05 03:43:10,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:10,330 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:10,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:10,429 INFO L225 Difference]: With dead ends: 32157 [2021-06-05 03:43:10,430 INFO L226 Difference]: Without dead ends: 31268 [2021-06-05 03:43:10,430 INFO L777 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 03:43:11,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31268 states. [2021-06-05 03:43:11,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31268 to 13371. [2021-06-05 03:43:11,697 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 03:43:11,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71102 transitions. [2021-06-05 03:43:11,743 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71102 transitions. Word has length 33 [2021-06-05 03:43:11,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:11,743 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71102 transitions. [2021-06-05 03:43:11,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:11,743 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71102 transitions. [2021-06-05 03:43:11,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:11,771 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:11,771 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:11,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 03:43:11,771 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 03:43:11,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:11,772 INFO L82 PathProgramCache]: Analyzing trace with hash 918727995, now seen corresponding path program 41 times [2021-06-05 03:43:11,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:11,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230772604] [2021-06-05 03:43:11,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:11,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:11,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230772604] [2021-06-05 03:43:11,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230772604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:11,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:11,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:11,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732797536] [2021-06-05 03:43:11,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:11,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:11,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:11,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:11,978 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 03:43:12,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:12,436 INFO L93 Difference]: Finished difference Result 32552 states and 163024 transitions. [2021-06-05 03:43:12,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:12,437 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:12,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:12,555 INFO L225 Difference]: With dead ends: 32552 [2021-06-05 03:43:12,556 INFO L226 Difference]: Without dead ends: 31658 [2021-06-05 03:43:12,556 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 196.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:13,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31658 states. [2021-06-05 03:43:13,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31658 to 13626. [2021-06-05 03:43:13,624 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 03:43:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13626 states to 13626 states and 72125 transitions. [2021-06-05 03:43:13,674 INFO L78 Accepts]: Start accepts. Automaton has 13626 states and 72125 transitions. Word has length 33 [2021-06-05 03:43:13,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:13,674 INFO L482 AbstractCegarLoop]: Abstraction has 13626 states and 72125 transitions. [2021-06-05 03:43:13,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 13626 states and 72125 transitions. [2021-06-05 03:43:13,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:13,703 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:13,703 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:13,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 03:43:13,704 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 03:43:13,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:13,704 INFO L82 PathProgramCache]: Analyzing trace with hash 437825949, now seen corresponding path program 42 times [2021-06-05 03:43:13,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:13,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273785468] [2021-06-05 03:43:13,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:13,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:13,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273785468] [2021-06-05 03:43:13,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273785468] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:13,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:13,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:13,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062716398] [2021-06-05 03:43:13,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:13,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:13,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:13,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:13,887 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 03:43:14,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:14,310 INFO L93 Difference]: Finished difference Result 32423 states and 162255 transitions. [2021-06-05 03:43:14,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:14,311 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:14,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:14,411 INFO L225 Difference]: With dead ends: 32423 [2021-06-05 03:43:14,411 INFO L226 Difference]: Without dead ends: 31277 [2021-06-05 03:43:14,411 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:15,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31277 states. [2021-06-05 03:43:15,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31277 to 13245. [2021-06-05 03:43:15,692 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 03:43:15,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13245 states to 13245 states and 70531 transitions. [2021-06-05 03:43:15,737 INFO L78 Accepts]: Start accepts. Automaton has 13245 states and 70531 transitions. Word has length 33 [2021-06-05 03:43:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:15,737 INFO L482 AbstractCegarLoop]: Abstraction has 13245 states and 70531 transitions. [2021-06-05 03:43:15,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:15,737 INFO L276 IsEmpty]: Start isEmpty. Operand 13245 states and 70531 transitions. [2021-06-05 03:43:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:15,764 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:15,764 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:15,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 03:43:15,764 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 03:43:15,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:15,764 INFO L82 PathProgramCache]: Analyzing trace with hash -118733415, now seen corresponding path program 43 times [2021-06-05 03:43:15,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:15,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775909762] [2021-06-05 03:43:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:15,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:15,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775909762] [2021-06-05 03:43:15,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775909762] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:15,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:15,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:15,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163348677] [2021-06-05 03:43:15,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:15,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:15,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:15,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:15,972 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 03:43:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:16,243 INFO L93 Difference]: Finished difference Result 32306 states and 162099 transitions. [2021-06-05 03:43:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:16,244 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 03:43:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:16,350 INFO L225 Difference]: With dead ends: 32306 [2021-06-05 03:43:16,351 INFO L226 Difference]: Without dead ends: 31555 [2021-06-05 03:43:16,351 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 214.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:17,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31555 states. [2021-06-05 03:43:17,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31555 to 13553. [2021-06-05 03:43:17,630 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 03:43:17,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13553 states to 13553 states and 71999 transitions. [2021-06-05 03:43:17,676 INFO L78 Accepts]: Start accepts. Automaton has 13553 states and 71999 transitions. Word has length 33 [2021-06-05 03:43:17,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:17,676 INFO L482 AbstractCegarLoop]: Abstraction has 13553 states and 71999 transitions. [2021-06-05 03:43:17,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand 13553 states and 71999 transitions. [2021-06-05 03:43:17,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:17,703 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:17,703 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:17,703 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 03:43:17,704 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 03:43:17,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:17,704 INFO L82 PathProgramCache]: Analyzing trace with hash -736256773, now seen corresponding path program 44 times [2021-06-05 03:43:17,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:17,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331958032] [2021-06-05 03:43:17,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:17,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:17,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331958032] [2021-06-05 03:43:17,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331958032] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:17,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:17,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:17,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509156312] [2021-06-05 03:43:17,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:17,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:17,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:17,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:17,894 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 03:43:18,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:18,121 INFO L93 Difference]: Finished difference Result 32449 states and 162602 transitions. [2021-06-05 03:43:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:18,122 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:18,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:18,223 INFO L225 Difference]: With dead ends: 32449 [2021-06-05 03:43:18,223 INFO L226 Difference]: Without dead ends: 31371 [2021-06-05 03:43:18,223 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:19,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31371 states. [2021-06-05 03:43:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31371 to 13369. [2021-06-05 03:43:19,470 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 03:43:19,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71095 transitions. [2021-06-05 03:43:19,515 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71095 transitions. Word has length 33 [2021-06-05 03:43:19,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:19,515 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71095 transitions. [2021-06-05 03:43:19,515 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:19,515 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71095 transitions. [2021-06-05 03:43:19,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:19,545 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:19,545 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:19,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 03:43:19,545 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 03:43:19,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:19,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1590868347, now seen corresponding path program 45 times [2021-06-05 03:43:19,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:19,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846364743] [2021-06-05 03:43:19,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:19,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:19,744 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:19,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846364743] [2021-06-05 03:43:19,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846364743] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:19,745 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:19,745 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:19,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194838463] [2021-06-05 03:43:19,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:19,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:19,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:19,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:19,745 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 03:43:20,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:20,008 INFO L93 Difference]: Finished difference Result 32113 states and 161109 transitions. [2021-06-05 03:43:20,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:20,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:20,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:20,108 INFO L225 Difference]: With dead ends: 32113 [2021-06-05 03:43:20,108 INFO L226 Difference]: Without dead ends: 31362 [2021-06-05 03:43:20,108 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 212.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31362 states. [2021-06-05 03:43:21,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31362 to 13489. [2021-06-05 03:43:21,413 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 03:43:21,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 71587 transitions. [2021-06-05 03:43:21,457 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 71587 transitions. Word has length 33 [2021-06-05 03:43:21,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:21,458 INFO L482 AbstractCegarLoop]: Abstraction has 13489 states and 71587 transitions. [2021-06-05 03:43:21,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:21,458 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 71587 transitions. [2021-06-05 03:43:21,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:21,485 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:21,485 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:21,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 03:43:21,485 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 03:43:21,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:21,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1747749765, now seen corresponding path program 46 times [2021-06-05 03:43:21,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:21,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929588234] [2021-06-05 03:43:21,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:21,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:21,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:21,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929588234] [2021-06-05 03:43:21,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929588234] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:21,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:21,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:21,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338933673] [2021-06-05 03:43:21,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:21,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:21,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:21,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:21,689 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 03:43:22,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:22,196 INFO L93 Difference]: Finished difference Result 32127 states and 161034 transitions. [2021-06-05 03:43:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:22,197 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:22,298 INFO L225 Difference]: With dead ends: 32127 [2021-06-05 03:43:22,298 INFO L226 Difference]: Without dead ends: 31242 [2021-06-05 03:43:22,298 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 232.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31242 states. [2021-06-05 03:43:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31242 to 13369. [2021-06-05 03:43:23,344 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 03:43:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71035 transitions. [2021-06-05 03:43:23,388 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71035 transitions. Word has length 33 [2021-06-05 03:43:23,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:23,388 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71035 transitions. [2021-06-05 03:43:23,388 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 03:43:23,388 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71035 transitions. [2021-06-05 03:43:23,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:23,415 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:23,415 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:23,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 03:43:23,415 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 03:43:23,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:23,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1779201187, now seen corresponding path program 47 times [2021-06-05 03:43:23,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:23,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060584659] [2021-06-05 03:43:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:23,662 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2021-06-05 03:43:23,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:23,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:23,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060584659] [2021-06-05 03:43:23,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060584659] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:23,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:23,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:23,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707464173] [2021-06-05 03:43:23,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:23,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:23,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:23,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:23,768 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 03:43:24,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:24,026 INFO L93 Difference]: Finished difference Result 32534 states and 162897 transitions. [2021-06-05 03:43:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:24,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:24,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:24,127 INFO L225 Difference]: With dead ends: 32534 [2021-06-05 03:43:24,127 INFO L226 Difference]: Without dead ends: 31640 [2021-06-05 03:43:24,127 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 336.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:24,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31640 states. [2021-06-05 03:43:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31640 to 13624. [2021-06-05 03:43:25,365 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 03:43:25,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13624 states to 13624 states and 72058 transitions. [2021-06-05 03:43:25,410 INFO L78 Accepts]: Start accepts. Automaton has 13624 states and 72058 transitions. Word has length 33 [2021-06-05 03:43:25,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:25,410 INFO L482 AbstractCegarLoop]: Abstraction has 13624 states and 72058 transitions. [2021-06-05 03:43:25,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 13624 states and 72058 transitions. [2021-06-05 03:43:25,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:25,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:25,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:25,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 03:43:25,438 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 03:43:25,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:25,438 INFO L82 PathProgramCache]: Analyzing trace with hash 492704571, now seen corresponding path program 48 times [2021-06-05 03:43:25,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:25,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067319221] [2021-06-05 03:43:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:25,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:25,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067319221] [2021-06-05 03:43:25,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067319221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:25,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:25,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:25,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506365409] [2021-06-05 03:43:25,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:25,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:25,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:25,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:25,591 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 03:43:25,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:25,827 INFO L93 Difference]: Finished difference Result 32405 states and 162128 transitions. [2021-06-05 03:43:25,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:25,827 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:25,925 INFO L225 Difference]: With dead ends: 32405 [2021-06-05 03:43:25,925 INFO L226 Difference]: Without dead ends: 31199 [2021-06-05 03:43:25,925 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31199 states. [2021-06-05 03:43:27,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31199 to 13183. [2021-06-05 03:43:27,141 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 03:43:27,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70280 transitions. [2021-06-05 03:43:27,186 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70280 transitions. Word has length 33 [2021-06-05 03:43:27,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:27,186 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70280 transitions. [2021-06-05 03:43:27,186 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 03:43:27,186 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70280 transitions. [2021-06-05 03:43:27,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:27,213 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:27,213 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:27,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 03:43:27,213 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 03:43:27,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:27,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1981905761, now seen corresponding path program 49 times [2021-06-05 03:43:27,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:27,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130040831] [2021-06-05 03:43:27,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:27,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:27,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:27,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130040831] [2021-06-05 03:43:27,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130040831] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:27,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:27,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:27,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125528109] [2021-06-05 03:43:27,375 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:27,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:27,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:27,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:27,376 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 03:43:27,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:27,608 INFO L93 Difference]: Finished difference Result 31009 states and 156157 transitions. [2021-06-05 03:43:27,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:27,609 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 03:43:27,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:27,705 INFO L225 Difference]: With dead ends: 31009 [2021-06-05 03:43:27,705 INFO L226 Difference]: Without dead ends: 30250 [2021-06-05 03:43:27,705 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30250 states. [2021-06-05 03:43:28,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30250 to 13387. [2021-06-05 03:43:28,982 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 03:43:29,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71260 transitions. [2021-06-05 03:43:29,031 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71260 transitions. Word has length 33 [2021-06-05 03:43:29,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:29,031 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71260 transitions. [2021-06-05 03:43:29,031 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 03:43:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71260 transitions. [2021-06-05 03:43:29,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:29,061 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:29,061 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:29,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 03:43:29,061 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 03:43:29,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:29,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1466264573, now seen corresponding path program 50 times [2021-06-05 03:43:29,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:29,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929377700] [2021-06-05 03:43:29,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:29,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:29,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:29,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929377700] [2021-06-05 03:43:29,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929377700] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:29,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:29,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:29,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725855215] [2021-06-05 03:43:29,226 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:29,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:29,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:29,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:29,227 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 03:43:29,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:29,473 INFO L93 Difference]: Finished difference Result 31001 states and 156009 transitions. [2021-06-05 03:43:29,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:29,473 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:29,572 INFO L225 Difference]: With dead ends: 31001 [2021-06-05 03:43:29,572 INFO L226 Difference]: Without dead ends: 30130 [2021-06-05 03:43:29,572 INFO L777 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 03:43:30,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30130 states. [2021-06-05 03:43:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30130 to 13267. [2021-06-05 03:43:30,826 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 03:43:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70712 transitions. [2021-06-05 03:43:30,870 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70712 transitions. Word has length 33 [2021-06-05 03:43:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:30,870 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70712 transitions. [2021-06-05 03:43:30,871 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70712 transitions. [2021-06-05 03:43:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:30,897 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:30,897 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:30,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 03:43:30,898 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 03:43:30,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:30,898 INFO L82 PathProgramCache]: Analyzing trace with hash 289999997, now seen corresponding path program 51 times [2021-06-05 03:43:30,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:30,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523260274] [2021-06-05 03:43:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:31,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:31,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:31,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523260274] [2021-06-05 03:43:31,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523260274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:31,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:31,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:31,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236954696] [2021-06-05 03:43:31,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:31,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:31,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:31,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:31,056 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 03:43:31,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:31,509 INFO L93 Difference]: Finished difference Result 30985 states and 156001 transitions. [2021-06-05 03:43:31,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:31,509 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 03:43:31,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:31,622 INFO L225 Difference]: With dead ends: 30985 [2021-06-05 03:43:31,623 INFO L226 Difference]: Without dead ends: 30226 [2021-06-05 03:43:31,623 INFO L777 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 03:43:32,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30226 states. [2021-06-05 03:43:32,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30226 to 13379. [2021-06-05 03:43:32,664 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 03:43:32,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71176 transitions. [2021-06-05 03:43:32,710 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71176 transitions. Word has length 33 [2021-06-05 03:43:32,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:32,710 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71176 transitions. [2021-06-05 03:43:32,710 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 03:43:32,710 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71176 transitions. [2021-06-05 03:43:32,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:32,737 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:32,737 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:32,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 03:43:32,737 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 03:43:32,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:32,738 INFO L82 PathProgramCache]: Analyzing trace with hash -506026883, now seen corresponding path program 52 times [2021-06-05 03:43:32,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:32,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740525215] [2021-06-05 03:43:32,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:32,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:32,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:32,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740525215] [2021-06-05 03:43:32,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740525215] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:32,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:32,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:32,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328631975] [2021-06-05 03:43:32,891 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:32,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:32,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:32,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:32,891 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 03:43:33,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:33,352 INFO L93 Difference]: Finished difference Result 30961 states and 155797 transitions. [2021-06-05 03:43:33,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:33,352 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:33,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:33,448 INFO L225 Difference]: With dead ends: 30961 [2021-06-05 03:43:33,448 INFO L226 Difference]: Without dead ends: 30114 [2021-06-05 03:43:33,448 INFO L777 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 03:43:34,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30114 states. [2021-06-05 03:43:34,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30114 to 13267. [2021-06-05 03:43:34,500 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 03:43:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70656 transitions. [2021-06-05 03:43:34,766 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70656 transitions. Word has length 33 [2021-06-05 03:43:34,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:34,766 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70656 transitions. [2021-06-05 03:43:34,766 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 03:43:34,766 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70656 transitions. [2021-06-05 03:43:34,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:34,794 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:34,794 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:34,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 03:43:34,794 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 03:43:34,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:34,794 INFO L82 PathProgramCache]: Analyzing trace with hash -566748069, now seen corresponding path program 53 times [2021-06-05 03:43:34,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:34,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78742167] [2021-06-05 03:43:34,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:34,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:34,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78742167] [2021-06-05 03:43:34,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78742167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:34,962 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:34,962 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:34,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705400043] [2021-06-05 03:43:34,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:34,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:34,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:34,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:34,963 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 03:43:35,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:35,236 INFO L93 Difference]: Finished difference Result 30969 states and 155889 transitions. [2021-06-05 03:43:35,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:35,236 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 03:43:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:35,333 INFO L225 Difference]: With dead ends: 30969 [2021-06-05 03:43:35,333 INFO L226 Difference]: Without dead ends: 30218 [2021-06-05 03:43:35,333 INFO L777 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 03:43:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30218 states. [2021-06-05 03:43:36,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30218 to 13379. [2021-06-05 03:43:36,594 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 03:43:36,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71120 transitions. [2021-06-05 03:43:36,641 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71120 transitions. Word has length 33 [2021-06-05 03:43:36,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:36,641 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71120 transitions. [2021-06-05 03:43:36,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:36,641 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71120 transitions. [2021-06-05 03:43:36,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:36,670 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:36,670 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:36,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 03:43:36,671 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 03:43:36,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:36,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1047650115, now seen corresponding path program 54 times [2021-06-05 03:43:36,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:36,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450790551] [2021-06-05 03:43:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:36,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:36,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450790551] [2021-06-05 03:43:36,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450790551] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:36,820 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:36,820 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:36,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850829257] [2021-06-05 03:43:36,820 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:36,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:36,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:36,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:36,820 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 03:43:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:37,065 INFO L93 Difference]: Finished difference Result 30953 states and 155713 transitions. [2021-06-05 03:43:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:37,065 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:37,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:37,160 INFO L225 Difference]: With dead ends: 30953 [2021-06-05 03:43:37,160 INFO L226 Difference]: Without dead ends: 30050 [2021-06-05 03:43:37,160 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:38,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30050 states. [2021-06-05 03:43:38,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30050 to 13211. [2021-06-05 03:43:38,401 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 03:43:38,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 70424 transitions. [2021-06-05 03:43:38,446 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 70424 transitions. Word has length 33 [2021-06-05 03:43:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:38,446 INFO L482 AbstractCegarLoop]: Abstraction has 13211 states and 70424 transitions. [2021-06-05 03:43:38,446 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 03:43:38,446 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 70424 transitions. [2021-06-05 03:43:38,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:38,472 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:38,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:38,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 03:43:38,473 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 03:43:38,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:38,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1071636767, now seen corresponding path program 55 times [2021-06-05 03:43:38,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:38,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99735418] [2021-06-05 03:43:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:38,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:38,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99735418] [2021-06-05 03:43:38,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99735418] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:38,630 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:38,630 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:38,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35806900] [2021-06-05 03:43:38,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:38,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:38,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:38,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:38,631 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 03:43:38,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:38,861 INFO L93 Difference]: Finished difference Result 31063 states and 156346 transitions. [2021-06-05 03:43:38,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:38,861 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:38,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:38,957 INFO L225 Difference]: With dead ends: 31063 [2021-06-05 03:43:38,958 INFO L226 Difference]: Without dead ends: 30304 [2021-06-05 03:43:38,958 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:39,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30304 states. [2021-06-05 03:43:40,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30304 to 13391. [2021-06-05 03:43:40,238 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 03:43:40,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 71252 transitions. [2021-06-05 03:43:40,283 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 71252 transitions. Word has length 33 [2021-06-05 03:43:40,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:40,283 INFO L482 AbstractCegarLoop]: Abstraction has 13391 states and 71252 transitions. [2021-06-05 03:43:40,283 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 03:43:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 71252 transitions. [2021-06-05 03:43:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:40,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:40,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:40,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 03:43:40,310 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 03:43:40,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:40,311 INFO L82 PathProgramCache]: Analyzing trace with hash 224839805, now seen corresponding path program 56 times [2021-06-05 03:43:40,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:40,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428584628] [2021-06-05 03:43:40,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:40,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:40,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428584628] [2021-06-05 03:43:40,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428584628] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:40,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:40,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:40,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076863378] [2021-06-05 03:43:40,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:40,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:40,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:40,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:40,457 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 03:43:40,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:40,697 INFO L93 Difference]: Finished difference Result 31055 states and 156198 transitions. [2021-06-05 03:43:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:40,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:40,793 INFO L225 Difference]: With dead ends: 31055 [2021-06-05 03:43:40,793 INFO L226 Difference]: Without dead ends: 30184 [2021-06-05 03:43:40,793 INFO L777 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 03:43:41,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30184 states. [2021-06-05 03:43:42,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30184 to 13271. [2021-06-05 03:43:42,062 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 03:43:42,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13271 states to 13271 states and 70700 transitions. [2021-06-05 03:43:42,107 INFO L78 Accepts]: Start accepts. Automaton has 13271 states and 70700 transitions. Word has length 33 [2021-06-05 03:43:42,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:42,107 INFO L482 AbstractCegarLoop]: Abstraction has 13271 states and 70700 transitions. [2021-06-05 03:43:42,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:42,107 INFO L276 IsEmpty]: Start isEmpty. Operand 13271 states and 70700 transitions. [2021-06-05 03:43:42,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:42,134 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:42,134 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:42,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 03:43:42,135 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 03:43:42,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:42,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1790371553, now seen corresponding path program 57 times [2021-06-05 03:43:42,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:42,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051933247] [2021-06-05 03:43:42,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:42,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:42,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:42,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051933247] [2021-06-05 03:43:42,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051933247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:42,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:42,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:42,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560056891] [2021-06-05 03:43:42,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:42,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:42,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:42,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:42,281 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 03:43:42,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:42,722 INFO L93 Difference]: Finished difference Result 31081 states and 156347 transitions. [2021-06-05 03:43:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:42,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:42,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:42,818 INFO L225 Difference]: With dead ends: 31081 [2021-06-05 03:43:42,818 INFO L226 Difference]: Without dead ends: 30322 [2021-06-05 03:43:42,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:43,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30322 states. [2021-06-05 03:43:43,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30322 to 13395. [2021-06-05 03:43:43,853 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 03:43:43,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71204 transitions. [2021-06-05 03:43:43,899 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71204 transitions. Word has length 33 [2021-06-05 03:43:43,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:43,899 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71204 transitions. [2021-06-05 03:43:43,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:43,899 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71204 transitions. [2021-06-05 03:43:43,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:43,926 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:43,927 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:43,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 03:43:43,927 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 03:43:43,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:43,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1364631265, now seen corresponding path program 58 times [2021-06-05 03:43:43,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:43,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380468821] [2021-06-05 03:43:43,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:44,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:44,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380468821] [2021-06-05 03:43:44,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380468821] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:44,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:44,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:44,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649170834] [2021-06-05 03:43:44,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:44,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:44,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:44,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:44,245 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 03:43:44,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:44,478 INFO L93 Difference]: Finished difference Result 31087 states and 156240 transitions. [2021-06-05 03:43:44,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:44,478 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:44,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:44,575 INFO L225 Difference]: With dead ends: 31087 [2021-06-05 03:43:44,575 INFO L226 Difference]: Without dead ends: 30198 [2021-06-05 03:43:44,576 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 336.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:45,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30198 states. [2021-06-05 03:43:45,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30198 to 13271. [2021-06-05 03:43:45,624 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 03:43:45,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13271 states to 13271 states and 70640 transitions. [2021-06-05 03:43:45,883 INFO L78 Accepts]: Start accepts. Automaton has 13271 states and 70640 transitions. Word has length 33 [2021-06-05 03:43:45,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:45,883 INFO L482 AbstractCegarLoop]: Abstraction has 13271 states and 70640 transitions. [2021-06-05 03:43:45,883 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 03:43:45,883 INFO L276 IsEmpty]: Start isEmpty. Operand 13271 states and 70640 transitions. [2021-06-05 03:43:45,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:45,910 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:45,910 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:45,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 03:43:45,910 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 03:43:45,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:45,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1647847677, now seen corresponding path program 59 times [2021-06-05 03:43:45,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:45,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461974904] [2021-06-05 03:43:45,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:46,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:46,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461974904] [2021-06-05 03:43:46,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461974904] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:46,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:46,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:46,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740221206] [2021-06-05 03:43:46,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:46,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:46,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:46,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:46,069 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 03:43:46,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:46,317 INFO L93 Difference]: Finished difference Result 31061 states and 156215 transitions. [2021-06-05 03:43:46,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:46,317 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 03:43:46,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:46,416 INFO L225 Difference]: With dead ends: 31061 [2021-06-05 03:43:46,416 INFO L226 Difference]: Without dead ends: 30310 [2021-06-05 03:43:46,417 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:47,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30310 states. [2021-06-05 03:43:47,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30310 to 13391. [2021-06-05 03:43:47,661 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 03:43:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 71132 transitions. [2021-06-05 03:43:47,706 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 71132 transitions. Word has length 33 [2021-06-05 03:43:47,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:47,706 INFO L482 AbstractCegarLoop]: Abstraction has 13391 states and 71132 transitions. [2021-06-05 03:43:47,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:47,706 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 71132 transitions. [2021-06-05 03:43:47,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:47,733 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:47,733 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:47,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 03:43:47,733 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 03:43:47,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:47,733 INFO L82 PathProgramCache]: Analyzing trace with hash 337266655, now seen corresponding path program 60 times [2021-06-05 03:43:47,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:47,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699997582] [2021-06-05 03:43:47,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:47,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:47,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699997582] [2021-06-05 03:43:47,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699997582] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:47,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:47,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:47,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857851989] [2021-06-05 03:43:47,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:47,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:47,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:47,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:47,896 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 03:43:48,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:48,130 INFO L93 Difference]: Finished difference Result 31075 states and 156140 transitions. [2021-06-05 03:43:48,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:48,131 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:48,228 INFO L225 Difference]: With dead ends: 31075 [2021-06-05 03:43:48,228 INFO L226 Difference]: Without dead ends: 30130 [2021-06-05 03:43:48,228 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:49,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30130 states. [2021-06-05 03:43:49,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30130 to 13211. [2021-06-05 03:43:49,572 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 03:43:49,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 70396 transitions. [2021-06-05 03:43:49,616 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 70396 transitions. Word has length 33 [2021-06-05 03:43:49,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:49,616 INFO L482 AbstractCegarLoop]: Abstraction has 13211 states and 70396 transitions. [2021-06-05 03:43:49,616 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 03:43:49,616 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 70396 transitions. [2021-06-05 03:43:49,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:49,643 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:49,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:49,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 03:43:49,643 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 03:43:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:49,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1924501123, now seen corresponding path program 61 times [2021-06-05 03:43:49,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:49,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848305234] [2021-06-05 03:43:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:49,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:49,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848305234] [2021-06-05 03:43:49,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848305234] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:49,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:49,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:49,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798346770] [2021-06-05 03:43:49,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:49,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:49,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:49,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:49,783 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 03:43:50,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:50,031 INFO L93 Difference]: Finished difference Result 31003 states and 156062 transitions. [2021-06-05 03:43:50,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:50,031 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:50,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:50,126 INFO L225 Difference]: With dead ends: 31003 [2021-06-05 03:43:50,126 INFO L226 Difference]: Without dead ends: 30244 [2021-06-05 03:43:50,126 INFO L777 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 03:43:51,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30244 states. [2021-06-05 03:43:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30244 to 13379. [2021-06-05 03:43:51,481 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 03:43:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71176 transitions. [2021-06-05 03:43:51,526 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71176 transitions. Word has length 33 [2021-06-05 03:43:51,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:51,526 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71176 transitions. [2021-06-05 03:43:51,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:51,526 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71176 transitions. [2021-06-05 03:43:51,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:51,553 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:51,553 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:51,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 03:43:51,553 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 03:43:51,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:51,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1574439293, now seen corresponding path program 62 times [2021-06-05 03:43:51,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:51,553 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964064087] [2021-06-05 03:43:51,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:51,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:51,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964064087] [2021-06-05 03:43:51,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964064087] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:51,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:51,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:51,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654665755] [2021-06-05 03:43:51,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:51,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:51,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:51,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:51,720 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 03:43:51,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:51,987 INFO L93 Difference]: Finished difference Result 30979 states and 155858 transitions. [2021-06-05 03:43:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:51,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:51,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:52,322 INFO L225 Difference]: With dead ends: 30979 [2021-06-05 03:43:52,322 INFO L226 Difference]: Without dead ends: 30132 [2021-06-05 03:43:52,322 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:53,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30132 states. [2021-06-05 03:43:53,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30132 to 13267. [2021-06-05 03:43:53,363 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 03:43:53,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70656 transitions. [2021-06-05 03:43:53,408 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70656 transitions. Word has length 33 [2021-06-05 03:43:53,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:53,408 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70656 transitions. [2021-06-05 03:43:53,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:53,409 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70656 transitions. [2021-06-05 03:43:53,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:53,436 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:53,436 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:53,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 03:43:53,436 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 03:43:53,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:53,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1636005983, now seen corresponding path program 63 times [2021-06-05 03:43:53,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:53,437 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746014548] [2021-06-05 03:43:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:53,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:53,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746014548] [2021-06-05 03:43:53,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746014548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:53,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:53,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:53,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437072276] [2021-06-05 03:43:53,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:53,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:53,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:53,606 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 03:43:54,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:54,123 INFO L93 Difference]: Finished difference Result 31045 states and 156167 transitions. [2021-06-05 03:43:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:54,123 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 03:43:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:54,221 INFO L225 Difference]: With dead ends: 31045 [2021-06-05 03:43:54,221 INFO L226 Difference]: Without dead ends: 30286 [2021-06-05 03:43:54,222 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:54,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30286 states. [2021-06-05 03:43:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30286 to 13391. [2021-06-05 03:43:55,265 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 03:43:55,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 71160 transitions. [2021-06-05 03:43:55,310 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 71160 transitions. Word has length 33 [2021-06-05 03:43:55,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:55,310 INFO L482 AbstractCegarLoop]: Abstraction has 13391 states and 71160 transitions. [2021-06-05 03:43:55,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:55,310 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 71160 transitions. [2021-06-05 03:43:55,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:55,337 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:55,338 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:55,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 03:43:55,338 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 03:43:55,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:55,338 INFO L82 PathProgramCache]: Analyzing trace with hash 93415805, now seen corresponding path program 64 times [2021-06-05 03:43:55,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:55,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434430724] [2021-06-05 03:43:55,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:55,510 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-06-05 03:43:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:55,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:55,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434430724] [2021-06-05 03:43:55,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434430724] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:55,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:55,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:55,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257719193] [2021-06-05 03:43:55,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:55,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:55,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:55,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:55,626 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 03:43:55,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:55,872 INFO L93 Difference]: Finished difference Result 31051 states and 156060 transitions. [2021-06-05 03:43:55,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:55,872 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 03:43:55,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:55,975 INFO L225 Difference]: With dead ends: 31051 [2021-06-05 03:43:55,975 INFO L226 Difference]: Without dead ends: 30162 [2021-06-05 03:43:55,975 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 309.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:43:56,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30162 states. [2021-06-05 03:43:57,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30162 to 13267. [2021-06-05 03:43:57,194 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 03:43:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70600 transitions. [2021-06-05 03:43:57,239 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70600 transitions. Word has length 33 [2021-06-05 03:43:57,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:57,240 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70600 transitions. [2021-06-05 03:43:57,240 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 03:43:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70600 transitions. [2021-06-05 03:43:57,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:57,266 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:57,266 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:57,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 03:43:57,266 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 03:43:57,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:57,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1606004355, now seen corresponding path program 65 times [2021-06-05 03:43:57,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:57,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566420022] [2021-06-05 03:43:57,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:57,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:57,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566420022] [2021-06-05 03:43:57,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566420022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:57,416 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:57,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:57,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671422285] [2021-06-05 03:43:57,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:57,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:57,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:57,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:57,416 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 03:43:57,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:57,684 INFO L93 Difference]: Finished difference Result 30985 states and 155875 transitions. [2021-06-05 03:43:57,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:57,685 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:57,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:57,781 INFO L225 Difference]: With dead ends: 30985 [2021-06-05 03:43:57,781 INFO L226 Difference]: Without dead ends: 30250 [2021-06-05 03:43:57,781 INFO L777 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 03:43:58,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30250 states. [2021-06-05 03:43:58,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30250 to 13379. [2021-06-05 03:43:58,989 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 03:43:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71064 transitions. [2021-06-05 03:43:59,034 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71064 transitions. Word has length 33 [2021-06-05 03:43:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:59,034 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71064 transitions. [2021-06-05 03:43:59,034 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 03:43:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71064 transitions. [2021-06-05 03:43:59,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:43:59,061 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:59,061 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:59,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 03:43:59,061 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 03:43:59,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:59,062 INFO L82 PathProgramCache]: Analyzing trace with hash 2071439583, now seen corresponding path program 66 times [2021-06-05 03:43:59,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:59,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346671882] [2021-06-05 03:43:59,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:59,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:59,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:59,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346671882] [2021-06-05 03:43:59,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346671882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:59,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:59,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:43:59,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411938365] [2021-06-05 03:43:59,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:43:59,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:59,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:43:59,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:59,217 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 03:43:59,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:59,470 INFO L93 Difference]: Finished difference Result 31015 states and 155872 transitions. [2021-06-05 03:43:59,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:43:59,471 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:43:59,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:59,567 INFO L225 Difference]: With dead ends: 31015 [2021-06-05 03:43:59,567 INFO L226 Difference]: Without dead ends: 30082 [2021-06-05 03:43:59,567 INFO L777 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 03:44:00,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30082 states. [2021-06-05 03:44:00,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30082 to 13211. [2021-06-05 03:44:00,815 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 03:44:00,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13211 states to 13211 states and 70368 transitions. [2021-06-05 03:44:00,860 INFO L78 Accepts]: Start accepts. Automaton has 13211 states and 70368 transitions. Word has length 33 [2021-06-05 03:44:00,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:00,860 INFO L482 AbstractCegarLoop]: Abstraction has 13211 states and 70368 transitions. [2021-06-05 03:44:00,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:00,860 INFO L276 IsEmpty]: Start isEmpty. Operand 13211 states and 70368 transitions. [2021-06-05 03:44:00,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:00,886 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:00,886 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:00,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 03:44:00,886 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 03:44:00,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:00,887 INFO L82 PathProgramCache]: Analyzing trace with hash 540641755, now seen corresponding path program 67 times [2021-06-05 03:44:00,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:00,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039433937] [2021-06-05 03:44:00,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:01,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:01,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039433937] [2021-06-05 03:44:01,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039433937] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:01,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:01,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:01,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710881128] [2021-06-05 03:44:01,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:01,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:01,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:01,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:01,038 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 03:44:01,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:01,264 INFO L93 Difference]: Finished difference Result 30975 states and 155934 transitions. [2021-06-05 03:44:01,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:01,264 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 03:44:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:01,359 INFO L225 Difference]: With dead ends: 30975 [2021-06-05 03:44:01,359 INFO L226 Difference]: Without dead ends: 30224 [2021-06-05 03:44:01,359 INFO L777 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 03:44:02,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30224 states. [2021-06-05 03:44:02,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30224 to 13379. [2021-06-05 03:44:02,621 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 03:44:02,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71148 transitions. [2021-06-05 03:44:02,666 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71148 transitions. Word has length 33 [2021-06-05 03:44:02,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:02,666 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71148 transitions. [2021-06-05 03:44:02,666 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 03:44:02,667 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71148 transitions. [2021-06-05 03:44:02,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:02,693 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:02,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:02,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 03:44:02,694 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 03:44:02,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:02,694 INFO L82 PathProgramCache]: Analyzing trace with hash 59739709, now seen corresponding path program 68 times [2021-06-05 03:44:02,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:02,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621958110] [2021-06-05 03:44:02,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:02,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:02,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621958110] [2021-06-05 03:44:02,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621958110] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:02,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:02,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:02,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079165385] [2021-06-05 03:44:02,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:02,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:02,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:02,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:02,842 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 03:44:03,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:03,072 INFO L93 Difference]: Finished difference Result 30959 states and 155758 transitions. [2021-06-05 03:44:03,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:03,072 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:03,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:03,457 INFO L225 Difference]: With dead ends: 30959 [2021-06-05 03:44:03,457 INFO L226 Difference]: Without dead ends: 30112 [2021-06-05 03:44:03,458 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:04,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30112 states. [2021-06-05 03:44:04,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30112 to 13267. [2021-06-05 03:44:04,788 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 03:44:04,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70628 transitions. [2021-06-05 03:44:04,833 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70628 transitions. Word has length 33 [2021-06-05 03:44:04,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:04,833 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70628 transitions. [2021-06-05 03:44:04,833 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 03:44:04,833 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70628 transitions. [2021-06-05 03:44:04,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:04,860 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:04,860 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:04,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 03:44:04,860 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 03:44:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:04,861 INFO L82 PathProgramCache]: Analyzing trace with hash -193818435, now seen corresponding path program 69 times [2021-06-05 03:44:04,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:04,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791627325] [2021-06-05 03:44:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:05,040 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:05,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791627325] [2021-06-05 03:44:05,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791627325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:05,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:05,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:05,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411555201] [2021-06-05 03:44:05,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:05,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:05,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:05,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:05,041 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 03:44:05,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:05,484 INFO L93 Difference]: Finished difference Result 31013 states and 156023 transitions. [2021-06-05 03:44:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:05,484 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:05,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:05,584 INFO L225 Difference]: With dead ends: 31013 [2021-06-05 03:44:05,584 INFO L226 Difference]: Without dead ends: 30262 [2021-06-05 03:44:05,584 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:06,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30262 states. [2021-06-05 03:44:06,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30262 to 13387. [2021-06-05 03:44:06,640 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 03:44:06,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71120 transitions. [2021-06-05 03:44:06,686 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71120 transitions. Word has length 33 [2021-06-05 03:44:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:06,687 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71120 transitions. [2021-06-05 03:44:06,687 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71120 transitions. [2021-06-05 03:44:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:06,853 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:06,853 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:06,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 03:44:06,853 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 03:44:06,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:06,853 INFO L82 PathProgramCache]: Analyzing trace with hash 822237373, now seen corresponding path program 70 times [2021-06-05 03:44:06,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:06,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299778531] [2021-06-05 03:44:06,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:07,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:07,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:07,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299778531] [2021-06-05 03:44:07,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299778531] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:07,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:07,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:07,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643397888] [2021-06-05 03:44:07,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:07,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:07,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:07,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:07,032 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 03:44:07,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:07,277 INFO L93 Difference]: Finished difference Result 31027 states and 155948 transitions. [2021-06-05 03:44:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:07,278 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:07,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:07,373 INFO L225 Difference]: With dead ends: 31027 [2021-06-05 03:44:07,373 INFO L226 Difference]: Without dead ends: 30142 [2021-06-05 03:44:07,373 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:08,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30142 states. [2021-06-05 03:44:08,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30142 to 13267. [2021-06-05 03:44:08,577 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 03:44:08,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13267 states to 13267 states and 70572 transitions. [2021-06-05 03:44:08,623 INFO L78 Accepts]: Start accepts. Automaton has 13267 states and 70572 transitions. Word has length 33 [2021-06-05 03:44:08,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:08,623 INFO L482 AbstractCegarLoop]: Abstraction has 13267 states and 70572 transitions. [2021-06-05 03:44:08,623 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 03:44:08,623 INFO L276 IsEmpty]: Start isEmpty. Operand 13267 states and 70572 transitions. [2021-06-05 03:44:08,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:08,652 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:08,652 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:08,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 03:44:08,652 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 03:44:08,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:08,653 INFO L82 PathProgramCache]: Analyzing trace with hash -983204705, now seen corresponding path program 71 times [2021-06-05 03:44:08,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:08,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794301884] [2021-06-05 03:44:08,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:08,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:08,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:08,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794301884] [2021-06-05 03:44:08,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794301884] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:08,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:08,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:08,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103708678] [2021-06-05 03:44:08,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:08,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:08,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:08,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:08,818 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 03:44:09,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:09,055 INFO L93 Difference]: Finished difference Result 30973 states and 155803 transitions. [2021-06-05 03:44:09,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:09,055 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 03:44:09,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:09,153 INFO L225 Difference]: With dead ends: 30973 [2021-06-05 03:44:09,153 INFO L226 Difference]: Without dead ends: 30238 [2021-06-05 03:44:09,153 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:09,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30238 states. [2021-06-05 03:44:10,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30238 to 13379. [2021-06-05 03:44:10,351 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 03:44:10,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71036 transitions. [2021-06-05 03:44:10,395 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71036 transitions. Word has length 33 [2021-06-05 03:44:10,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:10,395 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71036 transitions. [2021-06-05 03:44:10,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:10,396 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71036 transitions. [2021-06-05 03:44:10,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:10,422 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:10,422 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:10,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 03:44:10,422 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 03:44:10,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:10,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1348407677, now seen corresponding path program 72 times [2021-06-05 03:44:10,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:10,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692574398] [2021-06-05 03:44:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:10,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:10,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:10,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692574398] [2021-06-05 03:44:10,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692574398] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:10,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:10,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:10,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835369488] [2021-06-05 03:44:10,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:10,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:10,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:10,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:10,586 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 03:44:10,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:10,831 INFO L93 Difference]: Finished difference Result 31003 states and 155800 transitions. [2021-06-05 03:44:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:10,833 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 03:44:10,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:10,930 INFO L225 Difference]: With dead ends: 31003 [2021-06-05 03:44:10,930 INFO L226 Difference]: Without dead ends: 30042 [2021-06-05 03:44:10,930 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:11,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30042 states. [2021-06-05 03:44:12,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30042 to 13183. [2021-06-05 03:44:12,183 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 03:44:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70266 transitions. [2021-06-05 03:44:12,228 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70266 transitions. Word has length 33 [2021-06-05 03:44:12,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:12,229 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70266 transitions. [2021-06-05 03:44:12,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:12,229 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70266 transitions. [2021-06-05 03:44:12,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:12,257 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:12,257 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:12,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 03:44:12,257 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 03:44:12,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:12,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1704023899, now seen corresponding path program 73 times [2021-06-05 03:44:12,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:12,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460601587] [2021-06-05 03:44:12,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:12,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:12,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:12,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460601587] [2021-06-05 03:44:12,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460601587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:12,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:12,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:12,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924531467] [2021-06-05 03:44:12,420 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:12,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:12,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:12,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:12,421 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 03:44:12,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:12,746 INFO L93 Difference]: Finished difference Result 31896 states and 160380 transitions. [2021-06-05 03:44:12,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:12,746 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:12,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:12,844 INFO L225 Difference]: With dead ends: 31896 [2021-06-05 03:44:12,844 INFO L226 Difference]: Without dead ends: 31137 [2021-06-05 03:44:12,845 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 196.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31137 states. [2021-06-05 03:44:14,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31137 to 13443. [2021-06-05 03:44:14,108 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 03:44:14,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13443 states to 13443 states and 71570 transitions. [2021-06-05 03:44:14,153 INFO L78 Accepts]: Start accepts. Automaton has 13443 states and 71570 transitions. Word has length 33 [2021-06-05 03:44:14,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:14,154 INFO L482 AbstractCegarLoop]: Abstraction has 13443 states and 71570 transitions. [2021-06-05 03:44:14,154 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 03:44:14,154 INFO L276 IsEmpty]: Start isEmpty. Operand 13443 states and 71570 transitions. [2021-06-05 03:44:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:14,181 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:14,181 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:14,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 03:44:14,181 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 03:44:14,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:14,181 INFO L82 PathProgramCache]: Analyzing trace with hash 907997019, now seen corresponding path program 74 times [2021-06-05 03:44:14,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:14,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446394980] [2021-06-05 03:44:14,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:14,348 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:14,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446394980] [2021-06-05 03:44:14,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446394980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:14,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:14,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:14,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213221625] [2021-06-05 03:44:14,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:14,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:14,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:14,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:14,349 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 03:44:14,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:14,824 INFO L93 Difference]: Finished difference Result 31872 states and 160176 transitions. [2021-06-05 03:44:14,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:14,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:14,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:14,934 INFO L225 Difference]: With dead ends: 31872 [2021-06-05 03:44:14,935 INFO L226 Difference]: Without dead ends: 31025 [2021-06-05 03:44:14,935 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 188.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:15,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31025 states. [2021-06-05 03:44:15,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31025 to 13331. [2021-06-05 03:44:15,982 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 03:44:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 71050 transitions. [2021-06-05 03:44:16,027 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 71050 transitions. Word has length 33 [2021-06-05 03:44:16,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:16,027 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 71050 transitions. [2021-06-05 03:44:16,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:16,027 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 71050 transitions. [2021-06-05 03:44:16,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:16,054 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:16,054 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:16,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 03:44:16,054 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 03:44:16,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:16,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1278047933, now seen corresponding path program 75 times [2021-06-05 03:44:16,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:16,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857261020] [2021-06-05 03:44:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:16,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:16,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857261020] [2021-06-05 03:44:16,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857261020] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:16,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:16,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:16,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017926141] [2021-06-05 03:44:16,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:16,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:16,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:16,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:16,243 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 03:44:16,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:16,648 INFO L93 Difference]: Finished difference Result 32131 states and 161383 transitions. [2021-06-05 03:44:16,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:16,648 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 03:44:16,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:16,751 INFO L225 Difference]: With dead ends: 32131 [2021-06-05 03:44:16,751 INFO L226 Difference]: Without dead ends: 31372 [2021-06-05 03:44:16,751 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 209.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31372 states. [2021-06-05 03:44:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31372 to 13519. [2021-06-05 03:44:17,826 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 03:44:18,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13519 states to 13519 states and 71874 transitions. [2021-06-05 03:44:18,098 INFO L78 Accepts]: Start accepts. Automaton has 13519 states and 71874 transitions. Word has length 33 [2021-06-05 03:44:18,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:18,099 INFO L482 AbstractCegarLoop]: Abstraction has 13519 states and 71874 transitions. [2021-06-05 03:44:18,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 13519 states and 71874 transitions. [2021-06-05 03:44:18,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:18,126 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:18,126 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:18,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 03:44:18,126 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 03:44:18,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:18,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1707749211, now seen corresponding path program 76 times [2021-06-05 03:44:18,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:18,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997376993] [2021-06-05 03:44:18,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:18,292 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 03:44:18,292 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:18,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997376993] [2021-06-05 03:44:18,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997376993] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:18,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:18,293 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:18,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103962335] [2021-06-05 03:44:18,293 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:18,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:18,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:18,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:18,293 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 03:44:18,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:18,530 INFO L93 Difference]: Finished difference Result 32266 states and 161854 transitions. [2021-06-05 03:44:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:18,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:18,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:18,630 INFO L225 Difference]: With dead ends: 32266 [2021-06-05 03:44:18,631 INFO L226 Difference]: Without dead ends: 31184 [2021-06-05 03:44:18,631 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:19,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31184 states. [2021-06-05 03:44:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31184 to 13331. [2021-06-05 03:44:19,895 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 03:44:19,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 70962 transitions. [2021-06-05 03:44:19,939 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 70962 transitions. Word has length 33 [2021-06-05 03:44:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:19,940 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 70962 transitions. [2021-06-05 03:44:19,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:19,940 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 70962 transitions. [2021-06-05 03:44:19,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:19,974 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:19,974 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:19,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 03:44:19,975 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 03:44:19,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:19,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1954011301, now seen corresponding path program 77 times [2021-06-05 03:44:19,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:19,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256250515] [2021-06-05 03:44:19,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:20,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:20,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:20,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256250515] [2021-06-05 03:44:20,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256250515] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:20,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:20,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:20,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17914221] [2021-06-05 03:44:20,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:20,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:20,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:20,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:20,156 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 03:44:20,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:20,395 INFO L93 Difference]: Finished difference Result 32071 states and 161059 transitions. [2021-06-05 03:44:20,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:20,395 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:20,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:20,507 INFO L225 Difference]: With dead ends: 32071 [2021-06-05 03:44:20,507 INFO L226 Difference]: Without dead ends: 31336 [2021-06-05 03:44:20,507 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:21,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31336 states. [2021-06-05 03:44:21,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31336 to 13507. [2021-06-05 03:44:21,839 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 03:44:21,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 71746 transitions. [2021-06-05 03:44:21,885 INFO L78 Accepts]: Start accepts. Automaton has 13507 states and 71746 transitions. Word has length 33 [2021-06-05 03:44:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:21,885 INFO L482 AbstractCegarLoop]: Abstraction has 13507 states and 71746 transitions. [2021-06-05 03:44:21,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:21,885 INFO L276 IsEmpty]: Start isEmpty. Operand 13507 states and 71746 transitions. [2021-06-05 03:44:21,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:21,912 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:21,912 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:21,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 03:44:21,912 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 03:44:21,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:21,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1878476995, now seen corresponding path program 78 times [2021-06-05 03:44:21,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:21,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542916394] [2021-06-05 03:44:21,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:22,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:22,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:22,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542916394] [2021-06-05 03:44:22,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542916394] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:22,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:22,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:22,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718973484] [2021-06-05 03:44:22,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:22,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:22,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:22,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:22,086 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 03:44:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:22,310 INFO L93 Difference]: Finished difference Result 32230 states and 161634 transitions. [2021-06-05 03:44:22,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:22,310 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:22,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:22,408 INFO L225 Difference]: With dead ends: 32230 [2021-06-05 03:44:22,408 INFO L226 Difference]: Without dead ends: 31072 [2021-06-05 03:44:22,408 INFO L777 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 03:44:23,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31072 states. [2021-06-05 03:44:23,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31072 to 13243. [2021-06-05 03:44:23,753 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 03:44:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70570 transitions. [2021-06-05 03:44:23,798 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70570 transitions. Word has length 33 [2021-06-05 03:44:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:23,798 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70570 transitions. [2021-06-05 03:44:23,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70570 transitions. [2021-06-05 03:44:23,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:23,825 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:23,825 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:23,825 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 03:44:23,825 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 03:44:23,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:23,826 INFO L82 PathProgramCache]: Analyzing trace with hash -341157187, now seen corresponding path program 79 times [2021-06-05 03:44:23,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:23,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000434027] [2021-06-05 03:44:23,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:23,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:23,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:23,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000434027] [2021-06-05 03:44:23,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000434027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:23,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:23,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:23,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017091687] [2021-06-05 03:44:23,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:23,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:23,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:23,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:23,974 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 03:44:24,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:24,215 INFO L93 Difference]: Finished difference Result 31607 states and 158942 transitions. [2021-06-05 03:44:24,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:24,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:24,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:24,562 INFO L225 Difference]: With dead ends: 31607 [2021-06-05 03:44:24,562 INFO L226 Difference]: Without dead ends: 30848 [2021-06-05 03:44:24,562 INFO L777 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 03:44:25,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30848 states. [2021-06-05 03:44:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30848 to 13411. [2021-06-05 03:44:25,601 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 03:44:25,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71350 transitions. [2021-06-05 03:44:25,647 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71350 transitions. Word has length 33 [2021-06-05 03:44:25,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:25,647 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71350 transitions. [2021-06-05 03:44:25,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:25,647 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71350 transitions. [2021-06-05 03:44:25,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:25,674 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:25,674 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:25,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 03:44:25,674 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 03:44:25,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:25,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1137184067, now seen corresponding path program 80 times [2021-06-05 03:44:25,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:25,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858873991] [2021-06-05 03:44:25,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:25,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:25,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858873991] [2021-06-05 03:44:25,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858873991] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:25,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:25,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:25,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380543601] [2021-06-05 03:44:25,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:25,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:25,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:25,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:25,816 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 03:44:26,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:26,229 INFO L93 Difference]: Finished difference Result 31583 states and 158738 transitions. [2021-06-05 03:44:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:26,229 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 03:44:26,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:26,329 INFO L225 Difference]: With dead ends: 31583 [2021-06-05 03:44:26,329 INFO L226 Difference]: Without dead ends: 30736 [2021-06-05 03:44:26,330 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:27,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30736 states. [2021-06-05 03:44:27,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30736 to 13299. [2021-06-05 03:44:27,376 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 03:44:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70830 transitions. [2021-06-05 03:44:27,422 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70830 transitions. Word has length 33 [2021-06-05 03:44:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:27,422 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70830 transitions. [2021-06-05 03:44:27,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:27,422 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70830 transitions. [2021-06-05 03:44:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:27,583 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:27,583 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:27,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 03:44:27,583 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 03:44:27,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:27,583 INFO L82 PathProgramCache]: Analyzing trace with hash -104108483, now seen corresponding path program 81 times [2021-06-05 03:44:27,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:27,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17913230] [2021-06-05 03:44:27,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:27,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:27,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17913230] [2021-06-05 03:44:27,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17913230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:27,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:27,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:27,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797102502] [2021-06-05 03:44:27,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:27,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:27,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:27,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:27,725 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 03:44:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:27,963 INFO L93 Difference]: Finished difference Result 31649 states and 159047 transitions. [2021-06-05 03:44:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:27,963 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:27,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:28,059 INFO L225 Difference]: With dead ends: 31649 [2021-06-05 03:44:28,059 INFO L226 Difference]: Without dead ends: 30890 [2021-06-05 03:44:28,060 INFO L777 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 03:44:28,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30890 states. [2021-06-05 03:44:29,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30890 to 13423. [2021-06-05 03:44:29,262 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 03:44:29,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13423 states to 13423 states and 71334 transitions. [2021-06-05 03:44:29,307 INFO L78 Accepts]: Start accepts. Automaton has 13423 states and 71334 transitions. Word has length 33 [2021-06-05 03:44:29,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:29,307 INFO L482 AbstractCegarLoop]: Abstraction has 13423 states and 71334 transitions. [2021-06-05 03:44:29,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:29,308 INFO L276 IsEmpty]: Start isEmpty. Operand 13423 states and 71334 transitions. [2021-06-05 03:44:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:29,334 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:29,335 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:29,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 03:44:29,335 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 03:44:29,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:29,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1646698661, now seen corresponding path program 82 times [2021-06-05 03:44:29,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:29,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17311380] [2021-06-05 03:44:29,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:29,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:29,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17311380] [2021-06-05 03:44:29,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17311380] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:29,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:29,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:29,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441386263] [2021-06-05 03:44:29,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:29,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:29,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:29,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:29,470 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 03:44:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:29,711 INFO L93 Difference]: Finished difference Result 31655 states and 158940 transitions. [2021-06-05 03:44:29,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:29,712 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:29,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:29,808 INFO L225 Difference]: With dead ends: 31655 [2021-06-05 03:44:29,808 INFO L226 Difference]: Without dead ends: 30766 [2021-06-05 03:44:29,808 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:30,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30766 states. [2021-06-05 03:44:30,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30766 to 13299. [2021-06-05 03:44:31,005 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 03:44:31,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70774 transitions. [2021-06-05 03:44:31,048 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70774 transitions. Word has length 33 [2021-06-05 03:44:31,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:31,048 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70774 transitions. [2021-06-05 03:44:31,049 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 03:44:31,049 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70774 transitions. [2021-06-05 03:44:31,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:31,075 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:31,075 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:31,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 03:44:31,075 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 03:44:31,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:31,076 INFO L82 PathProgramCache]: Analyzing trace with hash 948848475, now seen corresponding path program 83 times [2021-06-05 03:44:31,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:31,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709966465] [2021-06-05 03:44:31,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:31,227 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 03:44:31,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:31,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709966465] [2021-06-05 03:44:31,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709966465] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:31,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:31,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:31,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413268174] [2021-06-05 03:44:31,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:31,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:31,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:31,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:31,228 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 03:44:31,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:31,467 INFO L93 Difference]: Finished difference Result 31589 states and 158755 transitions. [2021-06-05 03:44:31,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:31,468 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:31,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:31,564 INFO L225 Difference]: With dead ends: 31589 [2021-06-05 03:44:31,564 INFO L226 Difference]: Without dead ends: 30854 [2021-06-05 03:44:31,565 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:32,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30854 states. [2021-06-05 03:44:32,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30854 to 13411. [2021-06-05 03:44:32,830 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 03:44:32,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71238 transitions. [2021-06-05 03:44:32,875 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71238 transitions. Word has length 33 [2021-06-05 03:44:32,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:32,875 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71238 transitions. [2021-06-05 03:44:32,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:32,875 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71238 transitions. [2021-06-05 03:44:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:32,902 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:32,902 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:32,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 03:44:32,903 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 03:44:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:32,903 INFO L82 PathProgramCache]: Analyzing trace with hash 331325117, now seen corresponding path program 84 times [2021-06-05 03:44:32,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:32,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870159905] [2021-06-05 03:44:32,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:33,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:33,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870159905] [2021-06-05 03:44:33,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870159905] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:33,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:33,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:33,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629498028] [2021-06-05 03:44:33,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:33,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:33,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:33,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:33,051 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 03:44:33,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:33,326 INFO L93 Difference]: Finished difference Result 31619 states and 158752 transitions. [2021-06-05 03:44:33,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:33,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:33,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:33,428 INFO L225 Difference]: With dead ends: 31619 [2021-06-05 03:44:33,428 INFO L226 Difference]: Without dead ends: 30686 [2021-06-05 03:44:33,429 INFO L777 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 03:44:34,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30686 states. [2021-06-05 03:44:34,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30686 to 13243. [2021-06-05 03:44:35,002 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 03:44:35,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70542 transitions. [2021-06-05 03:44:35,048 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70542 transitions. Word has length 33 [2021-06-05 03:44:35,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:35,048 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70542 transitions. [2021-06-05 03:44:35,048 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 03:44:35,048 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70542 transitions. [2021-06-05 03:44:35,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:35,075 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:35,075 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:35,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 03:44:35,075 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 03:44:35,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:35,075 INFO L82 PathProgramCache]: Analyzing trace with hash -163558113, now seen corresponding path program 85 times [2021-06-05 03:44:35,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:35,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192079871] [2021-06-05 03:44:35,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:35,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:35,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:35,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192079871] [2021-06-05 03:44:35,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192079871] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:35,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:35,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:35,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395150771] [2021-06-05 03:44:35,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:35,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:35,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:35,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:35,231 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 03:44:35,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:35,686 INFO L93 Difference]: Finished difference Result 32290 states and 162019 transitions. [2021-06-05 03:44:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:35,687 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 03:44:35,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:35,799 INFO L225 Difference]: With dead ends: 32290 [2021-06-05 03:44:35,799 INFO L226 Difference]: Without dead ends: 31531 [2021-06-05 03:44:35,799 INFO L777 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 03:44:36,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31531 states. [2021-06-05 03:44:36,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31531 to 13557. [2021-06-05 03:44:36,864 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 03:44:36,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13557 states to 13557 states and 72031 transitions. [2021-06-05 03:44:36,911 INFO L78 Accepts]: Start accepts. Automaton has 13557 states and 72031 transitions. Word has length 33 [2021-06-05 03:44:36,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:36,911 INFO L482 AbstractCegarLoop]: Abstraction has 13557 states and 72031 transitions. [2021-06-05 03:44:36,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:36,911 INFO L276 IsEmpty]: Start isEmpty. Operand 13557 states and 72031 transitions. [2021-06-05 03:44:36,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:36,939 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:36,939 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:36,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 03:44:36,939 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 03:44:36,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:36,939 INFO L82 PathProgramCache]: Analyzing trace with hash 266143165, now seen corresponding path program 86 times [2021-06-05 03:44:36,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:36,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419223276] [2021-06-05 03:44:36,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:37,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:37,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419223276] [2021-06-05 03:44:37,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419223276] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:37,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:37,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:37,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36999250] [2021-06-05 03:44:37,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:37,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:37,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:37,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:37,095 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 03:44:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:37,475 INFO L93 Difference]: Finished difference Result 32425 states and 162490 transitions. [2021-06-05 03:44:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:37,476 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 03:44:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:37,577 INFO L225 Difference]: With dead ends: 32425 [2021-06-05 03:44:37,577 INFO L226 Difference]: Without dead ends: 31343 [2021-06-05 03:44:37,577 INFO L777 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 03:44:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31343 states. [2021-06-05 03:44:38,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31343 to 13369. [2021-06-05 03:44:38,654 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 03:44:38,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71113 transitions. [2021-06-05 03:44:38,922 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71113 transitions. Word has length 33 [2021-06-05 03:44:38,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:38,922 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71113 transitions. [2021-06-05 03:44:38,922 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:38,922 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71113 transitions. [2021-06-05 03:44:38,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:38,949 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:38,949 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:38,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 03:44:38,949 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 03:44:38,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:38,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1294488957, now seen corresponding path program 87 times [2021-06-05 03:44:38,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:38,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132075822] [2021-06-05 03:44:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:39,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:39,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:39,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132075822] [2021-06-05 03:44:39,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132075822] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:39,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:39,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:39,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547840402] [2021-06-05 03:44:39,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:39,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:39,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:39,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:39,098 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 03:44:39,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:39,361 INFO L93 Difference]: Finished difference Result 32097 states and 161027 transitions. [2021-06-05 03:44:39,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:39,361 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:39,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:39,458 INFO L225 Difference]: With dead ends: 32097 [2021-06-05 03:44:39,458 INFO L226 Difference]: Without dead ends: 31338 [2021-06-05 03:44:39,458 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 179.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:40,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31338 states. [2021-06-05 03:44:40,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31338 to 13493. [2021-06-05 03:44:40,722 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 03:44:40,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 71617 transitions. [2021-06-05 03:44:40,767 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 71617 transitions. Word has length 33 [2021-06-05 03:44:40,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:40,768 INFO L482 AbstractCegarLoop]: Abstraction has 13493 states and 71617 transitions. [2021-06-05 03:44:40,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 71617 transitions. [2021-06-05 03:44:40,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:40,795 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:40,795 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:40,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 03:44:40,795 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 03:44:40,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:40,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1307258429, now seen corresponding path program 88 times [2021-06-05 03:44:40,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:40,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779197268] [2021-06-05 03:44:40,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:40,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:40,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:40,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779197268] [2021-06-05 03:44:40,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779197268] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:40,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:40,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:40,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47591967] [2021-06-05 03:44:40,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:40,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:40,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:40,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:40,934 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 03:44:41,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:41,212 INFO L93 Difference]: Finished difference Result 32103 states and 160920 transitions. [2021-06-05 03:44:41,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:41,212 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:41,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:41,309 INFO L225 Difference]: With dead ends: 32103 [2021-06-05 03:44:41,309 INFO L226 Difference]: Without dead ends: 31214 [2021-06-05 03:44:41,309 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:42,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31214 states. [2021-06-05 03:44:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31214 to 13369. [2021-06-05 03:44:42,558 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 03:44:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 71051 transitions. [2021-06-05 03:44:42,603 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 71051 transitions. Word has length 33 [2021-06-05 03:44:42,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:42,603 INFO L482 AbstractCegarLoop]: Abstraction has 13369 states and 71051 transitions. [2021-06-05 03:44:42,603 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 71051 transitions. [2021-06-05 03:44:42,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:42,630 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:42,630 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:42,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 03:44:42,630 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 03:44:42,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:42,630 INFO L82 PathProgramCache]: Analyzing trace with hash -399300773, now seen corresponding path program 89 times [2021-06-05 03:44:42,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:42,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237074971] [2021-06-05 03:44:42,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:42,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:42,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237074971] [2021-06-05 03:44:42,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237074971] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:42,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:42,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:42,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553930583] [2021-06-05 03:44:42,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:42,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:42,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:42,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:42,775 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 03:44:42,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:42,989 INFO L93 Difference]: Finished difference Result 32498 states and 162741 transitions. [2021-06-05 03:44:42,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:42,989 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:42,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:43,093 INFO L225 Difference]: With dead ends: 32498 [2021-06-05 03:44:43,093 INFO L226 Difference]: Without dead ends: 31604 [2021-06-05 03:44:43,093 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 148.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:44,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31604 states. [2021-06-05 03:44:44,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31604 to 13624. [2021-06-05 03:44:44,368 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 03:44:44,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13624 states to 13624 states and 72074 transitions. [2021-06-05 03:44:44,414 INFO L78 Accepts]: Start accepts. Automaton has 13624 states and 72074 transitions. Word has length 33 [2021-06-05 03:44:44,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:44,414 INFO L482 AbstractCegarLoop]: Abstraction has 13624 states and 72074 transitions. [2021-06-05 03:44:44,414 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:44,414 INFO L276 IsEmpty]: Start isEmpty. Operand 13624 states and 72074 transitions. [2021-06-05 03:44:44,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:44,442 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:44,442 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:44,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 03:44:44,442 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 03:44:44,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:44,442 INFO L82 PathProgramCache]: Analyzing trace with hash -880202819, now seen corresponding path program 90 times [2021-06-05 03:44:44,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:44,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170848334] [2021-06-05 03:44:44,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:44,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:44,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:44,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170848334] [2021-06-05 03:44:44,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170848334] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:44,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:44,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:44,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995161126] [2021-06-05 03:44:44,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:44,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:44,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:44,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:44,583 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 03:44:44,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:44,822 INFO L93 Difference]: Finished difference Result 32369 states and 161972 transitions. [2021-06-05 03:44:44,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:44,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:44,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:45,166 INFO L225 Difference]: With dead ends: 32369 [2021-06-05 03:44:45,166 INFO L226 Difference]: Without dead ends: 31223 [2021-06-05 03:44:45,167 INFO L777 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 03:44:45,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31223 states. [2021-06-05 03:44:46,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31223 to 13243. [2021-06-05 03:44:46,226 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 03:44:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70482 transitions. [2021-06-05 03:44:46,270 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70482 transitions. Word has length 33 [2021-06-05 03:44:46,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:46,270 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70482 transitions. [2021-06-05 03:44:46,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:46,270 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70482 transitions. [2021-06-05 03:44:46,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:46,297 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:46,297 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:46,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 03:44:46,297 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 03:44:46,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:46,297 INFO L82 PathProgramCache]: Analyzing trace with hash -343642277, now seen corresponding path program 91 times [2021-06-05 03:44:46,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:46,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188906328] [2021-06-05 03:44:46,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:46,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:46,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188906328] [2021-06-05 03:44:46,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188906328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:46,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:46,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:46,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341728580] [2021-06-05 03:44:46,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:46,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:46,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:46,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:46,463 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 03:44:46,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:46,955 INFO L93 Difference]: Finished difference Result 32176 states and 161498 transitions. [2021-06-05 03:44:46,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:46,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:46,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:47,058 INFO L225 Difference]: With dead ends: 32176 [2021-06-05 03:44:47,059 INFO L226 Difference]: Without dead ends: 31441 [2021-06-05 03:44:47,059 INFO L777 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 03:44:47,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31441 states. [2021-06-05 03:44:48,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31441 to 13539. [2021-06-05 03:44:48,114 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 03:44:48,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 71902 transitions. [2021-06-05 03:44:48,159 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 71902 transitions. Word has length 33 [2021-06-05 03:44:48,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:48,159 INFO L482 AbstractCegarLoop]: Abstraction has 13539 states and 71902 transitions. [2021-06-05 03:44:48,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:48,159 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 71902 transitions. [2021-06-05 03:44:48,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:48,336 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:48,336 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:48,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 03:44:48,336 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 03:44:48,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:48,336 INFO L82 PathProgramCache]: Analyzing trace with hash -268107971, now seen corresponding path program 92 times [2021-06-05 03:44:48,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:48,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196904526] [2021-06-05 03:44:48,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:48,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:48,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:48,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196904526] [2021-06-05 03:44:48,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196904526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:48,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:48,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:48,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316518198] [2021-06-05 03:44:48,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:48,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:48,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:48,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:48,504 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 03:44:48,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:48,752 INFO L93 Difference]: Finished difference Result 32335 states and 162073 transitions. [2021-06-05 03:44:48,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:48,752 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 03:44:48,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:48,853 INFO L225 Difference]: With dead ends: 32335 [2021-06-05 03:44:48,853 INFO L226 Difference]: Without dead ends: 31265 [2021-06-05 03:44:48,853 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:49,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31265 states. [2021-06-05 03:44:50,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31265 to 13363. [2021-06-05 03:44:50,070 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 03:44:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71030 transitions. [2021-06-05 03:44:50,114 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71030 transitions. Word has length 33 [2021-06-05 03:44:50,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:50,114 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71030 transitions. [2021-06-05 03:44:50,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:50,115 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71030 transitions. [2021-06-05 03:44:50,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:50,141 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:50,141 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:50,141 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 03:44:50,141 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 03:44:50,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:50,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1365959485, now seen corresponding path program 93 times [2021-06-05 03:44:50,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:50,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469166464] [2021-06-05 03:44:50,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:50,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:50,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469166464] [2021-06-05 03:44:50,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469166464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:50,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:50,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:50,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934887535] [2021-06-05 03:44:50,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:50,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:50,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:50,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:50,315 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 03:44:50,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:50,547 INFO L93 Difference]: Finished difference Result 31983 states and 160512 transitions. [2021-06-05 03:44:50,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:50,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:50,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:50,645 INFO L225 Difference]: With dead ends: 31983 [2021-06-05 03:44:50,646 INFO L226 Difference]: Without dead ends: 31248 [2021-06-05 03:44:50,646 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:51,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31248 states. [2021-06-05 03:44:51,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31248 to 13475. [2021-06-05 03:44:51,865 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 03:44:51,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13475 states to 13475 states and 71494 transitions. [2021-06-05 03:44:51,912 INFO L78 Accepts]: Start accepts. Automaton has 13475 states and 71494 transitions. Word has length 33 [2021-06-05 03:44:51,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:51,912 INFO L482 AbstractCegarLoop]: Abstraction has 13475 states and 71494 transitions. [2021-06-05 03:44:51,912 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 03:44:51,912 INFO L276 IsEmpty]: Start isEmpty. Operand 13475 states and 71494 transitions. [2021-06-05 03:44:51,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:51,939 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:51,939 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:51,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 03:44:51,940 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 03:44:51,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:51,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1279600963, now seen corresponding path program 94 times [2021-06-05 03:44:51,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:51,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746757889] [2021-06-05 03:44:51,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:52,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:52,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:52,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746757889] [2021-06-05 03:44:52,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746757889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:52,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:52,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:52,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341272352] [2021-06-05 03:44:52,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:52,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:52,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:52,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:52,141 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 03:44:52,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:52,384 INFO L93 Difference]: Finished difference Result 32013 states and 160509 transitions. [2021-06-05 03:44:52,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:52,384 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 03:44:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:52,489 INFO L225 Difference]: With dead ends: 32013 [2021-06-05 03:44:52,489 INFO L226 Difference]: Without dead ends: 31136 [2021-06-05 03:44:52,490 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 217.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:53,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31136 states. [2021-06-05 03:44:53,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31136 to 13363. [2021-06-05 03:44:53,772 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 03:44:53,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70974 transitions. [2021-06-05 03:44:53,818 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70974 transitions. Word has length 33 [2021-06-05 03:44:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:53,818 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70974 transitions. [2021-06-05 03:44:53,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70974 transitions. [2021-06-05 03:44:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:53,845 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:53,845 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:53,845 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 03:44:53,845 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 03:44:53,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:53,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1002568161, now seen corresponding path program 95 times [2021-06-05 03:44:53,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:53,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962216713] [2021-06-05 03:44:53,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:54,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:54,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962216713] [2021-06-05 03:44:54,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962216713] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:54,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:54,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:54,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682304541] [2021-06-05 03:44:54,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:54,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:54,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:54,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:54,003 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 03:44:54,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:54,224 INFO L93 Difference]: Finished difference Result 32444 states and 162468 transitions. [2021-06-05 03:44:54,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:54,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:54,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:54,326 INFO L225 Difference]: With dead ends: 32444 [2021-06-05 03:44:54,326 INFO L226 Difference]: Without dead ends: 31550 [2021-06-05 03:44:54,326 INFO L777 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 03:44:55,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31550 states. [2021-06-05 03:44:55,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31550 to 13618. [2021-06-05 03:44:55,614 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 03:44:55,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13618 states to 13618 states and 71997 transitions. [2021-06-05 03:44:55,661 INFO L78 Accepts]: Start accepts. Automaton has 13618 states and 71997 transitions. Word has length 33 [2021-06-05 03:44:55,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:55,661 INFO L482 AbstractCegarLoop]: Abstraction has 13618 states and 71997 transitions. [2021-06-05 03:44:55,661 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 03:44:55,661 INFO L276 IsEmpty]: Start isEmpty. Operand 13618 states and 71997 transitions. [2021-06-05 03:44:55,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:55,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:55,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:55,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 03:44:55,689 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 03:44:55,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:55,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1269337597, now seen corresponding path program 96 times [2021-06-05 03:44:55,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:55,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449946096] [2021-06-05 03:44:55,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:55,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:55,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:55,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449946096] [2021-06-05 03:44:55,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449946096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:55,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:55,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:55,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006878503] [2021-06-05 03:44:55,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:55,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:55,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:55,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:55,840 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 03:44:56,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:56,294 INFO L93 Difference]: Finished difference Result 32315 states and 161699 transitions. [2021-06-05 03:44:56,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:56,294 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:56,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:56,401 INFO L225 Difference]: With dead ends: 32315 [2021-06-05 03:44:56,401 INFO L226 Difference]: Without dead ends: 31115 [2021-06-05 03:44:56,401 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:57,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31115 states. [2021-06-05 03:44:57,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31115 to 13183. [2021-06-05 03:44:57,485 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 03:44:57,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13183 states to 13183 states and 70236 transitions. [2021-06-05 03:44:57,531 INFO L78 Accepts]: Start accepts. Automaton has 13183 states and 70236 transitions. Word has length 33 [2021-06-05 03:44:57,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:57,531 INFO L482 AbstractCegarLoop]: Abstraction has 13183 states and 70236 transitions. [2021-06-05 03:44:57,531 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 03:44:57,531 INFO L276 IsEmpty]: Start isEmpty. Operand 13183 states and 70236 transitions. [2021-06-05 03:44:57,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:57,559 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:57,559 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:57,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 03:44:57,559 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 03:44:57,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:57,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1050695737, now seen corresponding path program 97 times [2021-06-05 03:44:57,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:57,559 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645385773] [2021-06-05 03:44:57,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:57,846 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-05 03:44:57,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:57,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:57,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645385773] [2021-06-05 03:44:57,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645385773] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:57,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:57,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:57,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755699793] [2021-06-05 03:44:57,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:57,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:57,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:57,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:57,875 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 03:44:58,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:58,119 INFO L93 Difference]: Finished difference Result 31850 states and 160181 transitions. [2021-06-05 03:44:58,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:58,120 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:44:58,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:58,228 INFO L225 Difference]: With dead ends: 31850 [2021-06-05 03:44:58,228 INFO L226 Difference]: Without dead ends: 31099 [2021-06-05 03:44:58,228 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 337.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:44:58,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31099 states. [2021-06-05 03:44:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31099 to 13443. [2021-06-05 03:44:59,489 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 03:44:59,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13443 states to 13443 states and 71540 transitions. [2021-06-05 03:44:59,535 INFO L78 Accepts]: Start accepts. Automaton has 13443 states and 71540 transitions. Word has length 33 [2021-06-05 03:44:59,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:59,535 INFO L482 AbstractCegarLoop]: Abstraction has 13443 states and 71540 transitions. [2021-06-05 03:44:59,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:59,535 INFO L276 IsEmpty]: Start isEmpty. Operand 13443 states and 71540 transitions. [2021-06-05 03:44:59,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:44:59,562 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:59,562 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:59,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 03:44:59,563 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 03:44:59,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:59,563 INFO L82 PathProgramCache]: Analyzing trace with hash 569793691, now seen corresponding path program 98 times [2021-06-05 03:44:59,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:59,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893258352] [2021-06-05 03:44:59,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:59,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:59,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893258352] [2021-06-05 03:44:59,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893258352] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:59,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:59,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:44:59,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39437327] [2021-06-05 03:44:59,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:44:59,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:59,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:44:59,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:59,725 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 03:44:59,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:59,978 INFO L93 Difference]: Finished difference Result 31834 states and 160005 transitions. [2021-06-05 03:44:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:44:59,978 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 03:44:59,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:00,081 INFO L225 Difference]: With dead ends: 31834 [2021-06-05 03:45:00,081 INFO L226 Difference]: Without dead ends: 30987 [2021-06-05 03:45:00,082 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:00,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30987 states. [2021-06-05 03:45:01,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30987 to 13331. [2021-06-05 03:45:01,310 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 03:45:01,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 71020 transitions. [2021-06-05 03:45:01,354 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 71020 transitions. Word has length 33 [2021-06-05 03:45:01,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:01,355 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 71020 transitions. [2021-06-05 03:45:01,355 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 03:45:01,355 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 71020 transitions. [2021-06-05 03:45:01,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:01,381 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:01,381 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:01,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 03:45:01,381 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 03:45:01,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:01,382 INFO L82 PathProgramCache]: Analyzing trace with hash 624719771, now seen corresponding path program 99 times [2021-06-05 03:45:01,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:01,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898582668] [2021-06-05 03:45:01,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:01,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:01,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898582668] [2021-06-05 03:45:01,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898582668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:01,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:01,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:01,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187030039] [2021-06-05 03:45:01,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:01,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:01,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:01,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:01,566 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 03:45:01,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:01,810 INFO L93 Difference]: Finished difference Result 32081 states and 161168 transitions. [2021-06-05 03:45:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:01,811 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 03:45:01,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:01,911 INFO L225 Difference]: With dead ends: 32081 [2021-06-05 03:45:01,911 INFO L226 Difference]: Without dead ends: 31330 [2021-06-05 03:45:01,911 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 208.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:02,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31330 states. [2021-06-05 03:45:03,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31330 to 13515. [2021-06-05 03:45:03,188 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 03:45:03,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13515 states to 13515 states and 71832 transitions. [2021-06-05 03:45:03,238 INFO L78 Accepts]: Start accepts. Automaton has 13515 states and 71832 transitions. Word has length 33 [2021-06-05 03:45:03,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:03,238 INFO L482 AbstractCegarLoop]: Abstraction has 13515 states and 71832 transitions. [2021-06-05 03:45:03,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:03,238 INFO L276 IsEmpty]: Start isEmpty. Operand 13515 states and 71832 transitions. [2021-06-05 03:45:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:03,272 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:03,272 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:03,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 03:45:03,273 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 03:45:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:03,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1951182949, now seen corresponding path program 100 times [2021-06-05 03:45:03,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:03,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273837391] [2021-06-05 03:45:03,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:03,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:03,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:03,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:03,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273837391] [2021-06-05 03:45:03,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273837391] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:03,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:03,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:03,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274199250] [2021-06-05 03:45:03,474 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:03,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:03,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:03,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:03,474 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 03:45:03,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:03,708 INFO L93 Difference]: Finished difference Result 32224 states and 161671 transitions. [2021-06-05 03:45:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:03,708 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 03:45:03,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:03,813 INFO L225 Difference]: With dead ends: 32224 [2021-06-05 03:45:03,813 INFO L226 Difference]: Without dead ends: 31146 [2021-06-05 03:45:03,813 INFO L777 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 03:45:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31146 states. [2021-06-05 03:45:05,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31146 to 13331. [2021-06-05 03:45:05,115 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 03:45:05,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13331 states to 13331 states and 70932 transitions. [2021-06-05 03:45:05,161 INFO L78 Accepts]: Start accepts. Automaton has 13331 states and 70932 transitions. Word has length 33 [2021-06-05 03:45:05,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:05,161 INFO L482 AbstractCegarLoop]: Abstraction has 13331 states and 70932 transitions. [2021-06-05 03:45:05,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:05,161 INFO L276 IsEmpty]: Start isEmpty. Operand 13331 states and 70932 transitions. [2021-06-05 03:45:05,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:05,190 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:05,190 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:05,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 03:45:05,190 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 03:45:05,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:05,190 INFO L82 PathProgramCache]: Analyzing trace with hash -164666499, now seen corresponding path program 101 times [2021-06-05 03:45:05,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:05,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558016017] [2021-06-05 03:45:05,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:05,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:05,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558016017] [2021-06-05 03:45:05,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558016017] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:05,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:05,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:05,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929971197] [2021-06-05 03:45:05,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:05,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:05,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:05,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:05,378 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 03:45:05,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:05,872 INFO L93 Difference]: Finished difference Result 32041 states and 160916 transitions. [2021-06-05 03:45:05,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:05,873 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:05,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:05,998 INFO L225 Difference]: With dead ends: 32041 [2021-06-05 03:45:05,999 INFO L226 Difference]: Without dead ends: 31306 [2021-06-05 03:45:05,999 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 210.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:06,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31306 states. [2021-06-05 03:45:07,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31306 to 13507. [2021-06-05 03:45:07,077 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 03:45:07,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13507 states to 13507 states and 71716 transitions. [2021-06-05 03:45:07,124 INFO L78 Accepts]: Start accepts. Automaton has 13507 states and 71716 transitions. Word has length 33 [2021-06-05 03:45:07,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:07,125 INFO L482 AbstractCegarLoop]: Abstraction has 13507 states and 71716 transitions. [2021-06-05 03:45:07,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 13507 states and 71716 transitions. [2021-06-05 03:45:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:07,153 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:07,153 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:07,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 03:45:07,154 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 03:45:07,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:07,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2118070309, now seen corresponding path program 102 times [2021-06-05 03:45:07,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:07,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905267405] [2021-06-05 03:45:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:07,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:07,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:07,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905267405] [2021-06-05 03:45:07,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905267405] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:07,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:07,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:07,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880908571] [2021-06-05 03:45:07,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:07,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:07,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:07,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:07,335 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 03:45:07,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:07,702 INFO L93 Difference]: Finished difference Result 32200 states and 161491 transitions. [2021-06-05 03:45:07,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:07,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:07,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:07,801 INFO L225 Difference]: With dead ends: 32200 [2021-06-05 03:45:07,801 INFO L226 Difference]: Without dead ends: 31042 [2021-06-05 03:45:07,801 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:08,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31042 states. [2021-06-05 03:45:08,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31042 to 13243. [2021-06-05 03:45:08,887 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 03:45:09,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70540 transitions. [2021-06-05 03:45:09,174 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70540 transitions. Word has length 33 [2021-06-05 03:45:09,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:09,174 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70540 transitions. [2021-06-05 03:45:09,174 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 03:45:09,174 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70540 transitions. [2021-06-05 03:45:09,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:09,202 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:09,202 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:09,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 03:45:09,202 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 03:45:09,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:09,203 INFO L82 PathProgramCache]: Analyzing trace with hash -994485349, now seen corresponding path program 103 times [2021-06-05 03:45:09,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:09,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266975083] [2021-06-05 03:45:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:09,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:09,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:09,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266975083] [2021-06-05 03:45:09,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266975083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:09,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:09,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:09,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154754753] [2021-06-05 03:45:09,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:09,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:09,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:09,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:09,370 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 03:45:09,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:09,640 INFO L93 Difference]: Finished difference Result 31561 states and 158743 transitions. [2021-06-05 03:45:09,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:09,641 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:09,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:09,749 INFO L225 Difference]: With dead ends: 31561 [2021-06-05 03:45:09,749 INFO L226 Difference]: Without dead ends: 30810 [2021-06-05 03:45:09,750 INFO L777 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 03:45:10,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30810 states. [2021-06-05 03:45:10,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30810 to 13411. [2021-06-05 03:45:11,000 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 03:45:11,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71320 transitions. [2021-06-05 03:45:11,045 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71320 transitions. Word has length 33 [2021-06-05 03:45:11,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:11,045 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71320 transitions. [2021-06-05 03:45:11,045 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 03:45:11,045 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71320 transitions. [2021-06-05 03:45:11,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:11,072 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:11,072 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:11,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 03:45:11,072 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 03:45:11,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:11,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1475387395, now seen corresponding path program 104 times [2021-06-05 03:45:11,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:11,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859920393] [2021-06-05 03:45:11,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:11,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:11,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859920393] [2021-06-05 03:45:11,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859920393] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:11,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:11,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:11,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306995678] [2021-06-05 03:45:11,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:11,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:11,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:11,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:11,232 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 03:45:11,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:11,477 INFO L93 Difference]: Finished difference Result 31545 states and 158567 transitions. [2021-06-05 03:45:11,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:11,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:11,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:11,578 INFO L225 Difference]: With dead ends: 31545 [2021-06-05 03:45:11,578 INFO L226 Difference]: Without dead ends: 30698 [2021-06-05 03:45:11,578 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:12,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30698 states. [2021-06-05 03:45:12,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30698 to 13299. [2021-06-05 03:45:12,829 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 03:45:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70800 transitions. [2021-06-05 03:45:12,878 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70800 transitions. Word has length 33 [2021-06-05 03:45:12,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:12,878 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70800 transitions. [2021-06-05 03:45:12,878 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 03:45:12,878 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70800 transitions. [2021-06-05 03:45:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:12,908 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:12,908 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:12,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 03:45:12,908 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 03:45:12,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:12,909 INFO L82 PathProgramCache]: Analyzing trace with hash -757436645, now seen corresponding path program 105 times [2021-06-05 03:45:12,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:12,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65614642] [2021-06-05 03:45:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:13,082 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 03:45:13,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:13,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65614642] [2021-06-05 03:45:13,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65614642] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:13,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:13,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:13,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190276396] [2021-06-05 03:45:13,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:13,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:13,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:13,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:13,083 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 03:45:13,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:13,325 INFO L93 Difference]: Finished difference Result 31599 states and 158832 transitions. [2021-06-05 03:45:13,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:13,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:13,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:13,426 INFO L225 Difference]: With dead ends: 31599 [2021-06-05 03:45:13,427 INFO L226 Difference]: Without dead ends: 30848 [2021-06-05 03:45:13,427 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 200.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30848 states. [2021-06-05 03:45:14,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30848 to 13419. [2021-06-05 03:45:14,720 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 03:45:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71292 transitions. [2021-06-05 03:45:14,769 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71292 transitions. Word has length 33 [2021-06-05 03:45:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:14,769 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71292 transitions. [2021-06-05 03:45:14,769 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71292 transitions. [2021-06-05 03:45:14,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:14,797 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:14,797 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:14,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 03:45:14,797 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 03:45:14,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:14,798 INFO L82 PathProgramCache]: Analyzing trace with hash 258619163, now seen corresponding path program 106 times [2021-06-05 03:45:14,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:14,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950353414] [2021-06-05 03:45:14,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:14,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:14,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:14,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950353414] [2021-06-05 03:45:14,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950353414] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:14,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:14,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:14,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859491870] [2021-06-05 03:45:14,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:14,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:14,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:14,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:14,972 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 03:45:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:15,222 INFO L93 Difference]: Finished difference Result 31613 states and 158757 transitions. [2021-06-05 03:45:15,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:15,222 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 03:45:15,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:15,320 INFO L225 Difference]: With dead ends: 31613 [2021-06-05 03:45:15,320 INFO L226 Difference]: Without dead ends: 30728 [2021-06-05 03:45:15,320 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:16,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30728 states. [2021-06-05 03:45:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30728 to 13299. [2021-06-05 03:45:16,591 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 03:45:16,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13299 states to 13299 states and 70744 transitions. [2021-06-05 03:45:16,637 INFO L78 Accepts]: Start accepts. Automaton has 13299 states and 70744 transitions. Word has length 33 [2021-06-05 03:45:16,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:16,637 INFO L482 AbstractCegarLoop]: Abstraction has 13299 states and 70744 transitions. [2021-06-05 03:45:16,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:16,637 INFO L276 IsEmpty]: Start isEmpty. Operand 13299 states and 70744 transitions. [2021-06-05 03:45:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:16,665 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:16,665 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:16,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 03:45:16,665 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 03:45:16,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:16,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1546822915, now seen corresponding path program 107 times [2021-06-05 03:45:16,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:16,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36434333] [2021-06-05 03:45:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:16,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:16,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:16,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36434333] [2021-06-05 03:45:16,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36434333] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:16,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:16,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:16,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693779425] [2021-06-05 03:45:16,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:16,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:16,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:16,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:16,840 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 03:45:17,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:17,236 INFO L93 Difference]: Finished difference Result 31559 states and 158612 transitions. [2021-06-05 03:45:17,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:17,236 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 03:45:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:17,336 INFO L225 Difference]: With dead ends: 31559 [2021-06-05 03:45:17,336 INFO L226 Difference]: Without dead ends: 30824 [2021-06-05 03:45:17,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 198.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:18,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30824 states. [2021-06-05 03:45:18,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30824 to 13411. [2021-06-05 03:45:18,392 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 03:45:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 71208 transitions. [2021-06-05 03:45:18,439 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 71208 transitions. Word has length 33 [2021-06-05 03:45:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:18,440 INFO L482 AbstractCegarLoop]: Abstraction has 13411 states and 71208 transitions. [2021-06-05 03:45:18,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 71208 transitions. [2021-06-05 03:45:18,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:18,467 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:18,467 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:18,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 03:45:18,468 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 03:45:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:18,468 INFO L82 PathProgramCache]: Analyzing trace with hash 784789467, now seen corresponding path program 108 times [2021-06-05 03:45:18,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:18,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906739049] [2021-06-05 03:45:18,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:18,625 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2021-06-05 03:45:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:18,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:18,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906739049] [2021-06-05 03:45:18,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906739049] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:18,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:18,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:18,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008341317] [2021-06-05 03:45:18,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:18,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:18,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:18,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:18,802 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 03:45:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:19,059 INFO L93 Difference]: Finished difference Result 31589 states and 158609 transitions. [2021-06-05 03:45:19,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:19,059 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 03:45:19,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:19,155 INFO L225 Difference]: With dead ends: 31589 [2021-06-05 03:45:19,155 INFO L226 Difference]: Without dead ends: 30656 [2021-06-05 03:45:19,155 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 216.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:19,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30656 states. [2021-06-05 03:45:20,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30656 to 13243. [2021-06-05 03:45:20,367 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 03:45:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70512 transitions. [2021-06-05 03:45:20,411 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70512 transitions. Word has length 33 [2021-06-05 03:45:20,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:20,412 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70512 transitions. [2021-06-05 03:45:20,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70512 transitions. [2021-06-05 03:45:20,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:20,437 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:20,437 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:20,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 03:45:20,438 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 03:45:20,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:20,438 INFO L82 PathProgramCache]: Analyzing trace with hash -816886275, now seen corresponding path program 109 times [2021-06-05 03:45:20,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:20,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564313151] [2021-06-05 03:45:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:20,626 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 03:45:20,627 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:20,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564313151] [2021-06-05 03:45:20,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564313151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:20,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:20,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:20,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766541352] [2021-06-05 03:45:20,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:20,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:20,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:20,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:20,627 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 03:45:20,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:20,864 INFO L93 Difference]: Finished difference Result 32234 states and 161779 transitions. [2021-06-05 03:45:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:20,864 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:20,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:20,960 INFO L225 Difference]: With dead ends: 32234 [2021-06-05 03:45:20,960 INFO L226 Difference]: Without dead ends: 31483 [2021-06-05 03:45:20,960 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:21,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31483 states. [2021-06-05 03:45:22,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31483 to 13551. [2021-06-05 03:45:22,169 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 03:45:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13551 states to 13551 states and 71980 transitions. [2021-06-05 03:45:22,215 INFO L78 Accepts]: Start accepts. Automaton has 13551 states and 71980 transitions. Word has length 33 [2021-06-05 03:45:22,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:22,215 INFO L482 AbstractCegarLoop]: Abstraction has 13551 states and 71980 transitions. [2021-06-05 03:45:22,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:22,215 INFO L276 IsEmpty]: Start isEmpty. Operand 13551 states and 71980 transitions. [2021-06-05 03:45:22,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:22,241 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:22,241 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:22,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 03:45:22,242 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 03:45:22,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:22,242 INFO L82 PathProgramCache]: Analyzing trace with hash 902178301, now seen corresponding path program 110 times [2021-06-05 03:45:22,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:22,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778461299] [2021-06-05 03:45:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:22,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:22,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778461299] [2021-06-05 03:45:22,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778461299] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:22,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:22,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:22,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602825493] [2021-06-05 03:45:22,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:22,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:22,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:22,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:22,433 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 03:45:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:22,656 INFO L93 Difference]: Finished difference Result 32377 states and 162282 transitions. [2021-06-05 03:45:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:22,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:22,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:22,751 INFO L225 Difference]: With dead ends: 32377 [2021-06-05 03:45:22,751 INFO L226 Difference]: Without dead ends: 31299 [2021-06-05 03:45:22,751 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31299 states. [2021-06-05 03:45:23,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31299 to 13367. [2021-06-05 03:45:23,993 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 03:45:24,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 71076 transitions. [2021-06-05 03:45:24,040 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 71076 transitions. Word has length 33 [2021-06-05 03:45:24,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:24,040 INFO L482 AbstractCegarLoop]: Abstraction has 13367 states and 71076 transitions. [2021-06-05 03:45:24,040 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 03:45:24,040 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 71076 transitions. [2021-06-05 03:45:24,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:24,065 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:24,066 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:24,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 03:45:24,066 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 03:45:24,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:24,066 INFO L82 PathProgramCache]: Analyzing trace with hash 641160795, now seen corresponding path program 111 times [2021-06-05 03:45:24,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:24,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246381049] [2021-06-05 03:45:24,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:24,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:24,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246381049] [2021-06-05 03:45:24,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246381049] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:24,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:24,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:24,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913240333] [2021-06-05 03:45:24,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:24,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:24,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:24,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:24,239 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 03:45:24,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:24,459 INFO L93 Difference]: Finished difference Result 32041 states and 160789 transitions. [2021-06-05 03:45:24,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:24,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:24,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:24,554 INFO L225 Difference]: With dead ends: 32041 [2021-06-05 03:45:24,554 INFO L226 Difference]: Without dead ends: 31290 [2021-06-05 03:45:24,554 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 198.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:25,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31290 states. [2021-06-05 03:45:25,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31290 to 13487. [2021-06-05 03:45:25,830 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 03:45:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13487 states to 13487 states and 71568 transitions. [2021-06-05 03:45:25,874 INFO L78 Accepts]: Start accepts. Automaton has 13487 states and 71568 transitions. Word has length 33 [2021-06-05 03:45:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:25,874 INFO L482 AbstractCegarLoop]: Abstraction has 13487 states and 71568 transitions. [2021-06-05 03:45:25,874 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 03:45:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 13487 states and 71568 transitions. [2021-06-05 03:45:25,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:25,900 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:25,900 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:25,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 03:45:25,900 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 03:45:25,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:25,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1082391043, now seen corresponding path program 112 times [2021-06-05 03:45:25,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:25,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416209324] [2021-06-05 03:45:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:26,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:26,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416209324] [2021-06-05 03:45:26,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416209324] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:26,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:26,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:26,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496375533] [2021-06-05 03:45:26,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:26,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:26,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:26,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:26,079 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 03:45:26,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:26,528 INFO L93 Difference]: Finished difference Result 32055 states and 160714 transitions. [2021-06-05 03:45:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:26,528 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:26,633 INFO L225 Difference]: With dead ends: 32055 [2021-06-05 03:45:26,634 INFO L226 Difference]: Without dead ends: 31170 [2021-06-05 03:45:26,634 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 200.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:27,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31170 states. [2021-06-05 03:45:27,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31170 to 13367. [2021-06-05 03:45:27,668 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 03:45:27,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13367 states to 13367 states and 71016 transitions. [2021-06-05 03:45:27,712 INFO L78 Accepts]: Start accepts. Automaton has 13367 states and 71016 transitions. Word has length 33 [2021-06-05 03:45:27,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:27,712 INFO L482 AbstractCegarLoop]: Abstraction has 13367 states and 71016 transitions. [2021-06-05 03:45:27,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:27,712 INFO L276 IsEmpty]: Start isEmpty. Operand 13367 states and 71016 transitions. [2021-06-05 03:45:27,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:27,738 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:27,738 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:27,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 03:45:27,738 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 03:45:27,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:27,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1920733699, now seen corresponding path program 113 times [2021-06-05 03:45:27,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:27,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446606953] [2021-06-05 03:45:27,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:27,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:27,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:27,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446606953] [2021-06-05 03:45:27,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446606953] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:27,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:27,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:27,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110507500] [2021-06-05 03:45:27,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:27,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:27,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:27,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:27,899 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 03:45:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:28,254 INFO L93 Difference]: Finished difference Result 32462 states and 162577 transitions. [2021-06-05 03:45:28,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:28,255 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 03:45:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:28,353 INFO L225 Difference]: With dead ends: 32462 [2021-06-05 03:45:28,353 INFO L226 Difference]: Without dead ends: 31568 [2021-06-05 03:45:28,353 INFO L777 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 03:45:29,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31568 states. [2021-06-05 03:45:29,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31568 to 13622. [2021-06-05 03:45:29,425 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 03:45:29,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13622 states to 13622 states and 72039 transitions. [2021-06-05 03:45:29,713 INFO L78 Accepts]: Start accepts. Automaton has 13622 states and 72039 transitions. Word has length 33 [2021-06-05 03:45:29,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:29,713 INFO L482 AbstractCegarLoop]: Abstraction has 13622 states and 72039 transitions. [2021-06-05 03:45:29,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:29,713 INFO L276 IsEmpty]: Start isEmpty. Operand 13622 states and 72039 transitions. [2021-06-05 03:45:29,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:29,741 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:29,741 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:29,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 03:45:29,742 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 03:45:29,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:29,742 INFO L82 PathProgramCache]: Analyzing trace with hash 351172059, now seen corresponding path program 114 times [2021-06-05 03:45:29,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:29,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392392098] [2021-06-05 03:45:29,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:29,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:29,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:29,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392392098] [2021-06-05 03:45:29,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392392098] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:29,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:29,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:29,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527324239] [2021-06-05 03:45:29,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:29,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:29,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:29,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:29,905 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 03:45:30,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:30,151 INFO L93 Difference]: Finished difference Result 32333 states and 161808 transitions. [2021-06-05 03:45:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:30,152 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 03:45:30,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:30,248 INFO L225 Difference]: With dead ends: 32333 [2021-06-05 03:45:30,248 INFO L226 Difference]: Without dead ends: 31189 [2021-06-05 03:45:30,248 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:30,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31189 states. [2021-06-05 03:45:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31189 to 13243. [2021-06-05 03:45:31,520 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 03:45:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 70452 transitions. [2021-06-05 03:45:31,564 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 70452 transitions. Word has length 33 [2021-06-05 03:45:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:31,564 INFO L482 AbstractCegarLoop]: Abstraction has 13243 states and 70452 transitions. [2021-06-05 03:45:31,565 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 03:45:31,565 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 70452 transitions. [2021-06-05 03:45:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:31,590 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:31,590 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:31,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 03:45:31,591 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 03:45:31,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:31,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1706868385, now seen corresponding path program 115 times [2021-06-05 03:45:31,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:31,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747659975] [2021-06-05 03:45:31,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:31,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:31,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747659975] [2021-06-05 03:45:31,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747659975] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:31,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:31,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:31,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025414083] [2021-06-05 03:45:31,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:31,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:31,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:31,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:31,775 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 03:45:32,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:32,028 INFO L93 Difference]: Finished difference Result 32158 states and 161399 transitions. [2021-06-05 03:45:32,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:32,028 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:32,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:32,130 INFO L225 Difference]: With dead ends: 32158 [2021-06-05 03:45:32,131 INFO L226 Difference]: Without dead ends: 31423 [2021-06-05 03:45:32,131 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 208.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:33,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31423 states. [2021-06-05 03:45:33,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31423 to 13539. [2021-06-05 03:45:33,391 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 03:45:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 71872 transitions. [2021-06-05 03:45:33,436 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 71872 transitions. Word has length 33 [2021-06-05 03:45:33,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:33,436 INFO L482 AbstractCegarLoop]: Abstraction has 13539 states and 71872 transitions. [2021-06-05 03:45:33,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 71872 transitions. [2021-06-05 03:45:33,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:33,465 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:33,466 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:33,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 03:45:33,466 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 03:45:33,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:33,466 INFO L82 PathProgramCache]: Analyzing trace with hash 634695101, now seen corresponding path program 116 times [2021-06-05 03:45:33,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:33,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847721555] [2021-06-05 03:45:33,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:33,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:33,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847721555] [2021-06-05 03:45:33,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847721555] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:33,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:33,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:33,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361743752] [2021-06-05 03:45:33,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:33,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:33,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:33,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:33,645 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 03:45:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:33,870 INFO L93 Difference]: Finished difference Result 32317 states and 161974 transitions. [2021-06-05 03:45:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:33,870 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 03:45:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:33,971 INFO L225 Difference]: With dead ends: 32317 [2021-06-05 03:45:33,971 INFO L226 Difference]: Without dead ends: 31247 [2021-06-05 03:45:33,971 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:34,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31247 states. [2021-06-05 03:45:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31247 to 13363. [2021-06-05 03:45:35,249 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 03:45:35,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 71000 transitions. [2021-06-05 03:45:35,294 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 71000 transitions. Word has length 33 [2021-06-05 03:45:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:35,294 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 71000 transitions. [2021-06-05 03:45:35,294 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 03:45:35,294 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 71000 transitions. [2021-06-05 03:45:35,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:35,322 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:35,322 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:35,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 03:45:35,322 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 03:45:35,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:35,323 INFO L82 PathProgramCache]: Analyzing trace with hash -248821315, now seen corresponding path program 117 times [2021-06-05 03:45:35,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:35,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761293422] [2021-06-05 03:45:35,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:35,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:35,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761293422] [2021-06-05 03:45:35,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761293422] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:35,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:35,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:35,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099021717] [2021-06-05 03:45:35,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:35,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:35,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:35,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:35,495 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 03:45:35,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:35,752 INFO L93 Difference]: Finished difference Result 31965 states and 160413 transitions. [2021-06-05 03:45:35,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:35,752 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 03:45:35,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:36,093 INFO L225 Difference]: With dead ends: 31965 [2021-06-05 03:45:36,094 INFO L226 Difference]: Without dead ends: 31230 [2021-06-05 03:45:36,094 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:36,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31230 states. [2021-06-05 03:45:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31230 to 13475. [2021-06-05 03:45:37,182 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 03:45:37,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13475 states to 13475 states and 71464 transitions. [2021-06-05 03:45:37,230 INFO L78 Accepts]: Start accepts. Automaton has 13475 states and 71464 transitions. Word has length 33 [2021-06-05 03:45:37,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:37,230 INFO L482 AbstractCegarLoop]: Abstraction has 13475 states and 71464 transitions. [2021-06-05 03:45:37,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 13475 states and 71464 transitions. [2021-06-05 03:45:37,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:37,260 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:37,260 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:37,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 03:45:37,260 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 03:45:37,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:37,261 INFO L82 PathProgramCache]: Analyzing trace with hash -656816579, now seen corresponding path program 118 times [2021-06-05 03:45:37,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:37,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025878508] [2021-06-05 03:45:37,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:37,435 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:37,435 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025878508] [2021-06-05 03:45:37,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025878508] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:37,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:37,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:37,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708821741] [2021-06-05 03:45:37,436 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:37,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:37,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:37,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:37,436 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 03:45:37,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:37,871 INFO L93 Difference]: Finished difference Result 31995 states and 160410 transitions. [2021-06-05 03:45:37,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:37,871 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 03:45:37,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:37,971 INFO L225 Difference]: With dead ends: 31995 [2021-06-05 03:45:37,971 INFO L226 Difference]: Without dead ends: 31118 [2021-06-05 03:45:37,972 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:38,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31118 states. [2021-06-05 03:45:39,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31118 to 13363. [2021-06-05 03:45:39,055 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 03:45:39,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13363 states to 13363 states and 70944 transitions. [2021-06-05 03:45:39,343 INFO L78 Accepts]: Start accepts. Automaton has 13363 states and 70944 transitions. Word has length 33 [2021-06-05 03:45:39,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:39,343 INFO L482 AbstractCegarLoop]: Abstraction has 13363 states and 70944 transitions. [2021-06-05 03:45:39,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:39,343 INFO L276 IsEmpty]: Start isEmpty. Operand 13363 states and 70944 transitions. [2021-06-05 03:45:39,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:39,375 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:39,376 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:39,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 03:45:39,376 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 03:45:39,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:39,376 INFO L82 PathProgramCache]: Analyzing trace with hash -658734309, now seen corresponding path program 119 times [2021-06-05 03:45:39,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:39,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899785094] [2021-06-05 03:45:39,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:39,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:39,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:39,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899785094] [2021-06-05 03:45:39,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899785094] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:39,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:39,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:39,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994820790] [2021-06-05 03:45:39,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:39,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:39,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:39,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:39,550 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 03:45:39,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:39,779 INFO L93 Difference]: Finished difference Result 32426 states and 162369 transitions. [2021-06-05 03:45:39,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:39,779 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:39,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:39,879 INFO L225 Difference]: With dead ends: 32426 [2021-06-05 03:45:39,879 INFO L226 Difference]: Without dead ends: 31532 [2021-06-05 03:45:39,880 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31532 states. [2021-06-05 03:45:41,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31532 to 13618. [2021-06-05 03:45:41,157 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 03:45:41,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13618 states to 13618 states and 71967 transitions. [2021-06-05 03:45:41,203 INFO L78 Accepts]: Start accepts. Automaton has 13618 states and 71967 transitions. Word has length 33 [2021-06-05 03:45:41,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:41,203 INFO L482 AbstractCegarLoop]: Abstraction has 13618 states and 71967 transitions. [2021-06-05 03:45:41,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:41,203 INFO L276 IsEmpty]: Start isEmpty. Operand 13618 states and 71967 transitions. [2021-06-05 03:45:41,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:41,230 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:41,230 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:41,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 03:45:41,231 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 03:45:41,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:41,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1050867453, now seen corresponding path program 120 times [2021-06-05 03:45:41,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:41,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190328515] [2021-06-05 03:45:41,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:41,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:41,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190328515] [2021-06-05 03:45:41,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190328515] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:41,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:41,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:41,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004327955] [2021-06-05 03:45:41,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:41,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:41,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:41,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:41,394 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 03:45:41,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:41,640 INFO L93 Difference]: Finished difference Result 32297 states and 161600 transitions. [2021-06-05 03:45:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:41,640 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 03:45:41,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:41,741 INFO L225 Difference]: With dead ends: 32297 [2021-06-05 03:45:41,741 INFO L226 Difference]: Without dead ends: 31067 [2021-06-05 03:45:41,742 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:42,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31067 states. [2021-06-05 03:45:42,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31067 to 13153. [2021-06-05 03:45:42,993 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 03:45:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 70128 transitions. [2021-06-05 03:45:43,037 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 70128 transitions. Word has length 33 [2021-06-05 03:45:43,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:43,037 INFO L482 AbstractCegarLoop]: Abstraction has 13153 states and 70128 transitions. [2021-06-05 03:45:43,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 70128 transitions. [2021-06-05 03:45:43,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:43,063 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:43,063 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:43,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 03:45:43,064 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 03:45:43,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:43,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1955285691, now seen corresponding path program 121 times [2021-06-05 03:45:43,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:43,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63261422] [2021-06-05 03:45:43,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:43,227 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 03:45:43,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:43,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63261422] [2021-06-05 03:45:43,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63261422] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:43,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:43,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:43,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340220701] [2021-06-05 03:45:43,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:43,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:43,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:43,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:43,229 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 03:45:43,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:43,483 INFO L93 Difference]: Finished difference Result 31566 states and 158987 transitions. [2021-06-05 03:45:43,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:43,483 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:43,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:43,590 INFO L225 Difference]: With dead ends: 31566 [2021-06-05 03:45:43,590 INFO L226 Difference]: Without dead ends: 30807 [2021-06-05 03:45:43,591 INFO L777 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 03:45:44,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30807 states. [2021-06-05 03:45:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30807 to 13431. [2021-06-05 03:45:44,868 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 03:45:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13431 states to 13431 states and 71545 transitions. [2021-06-05 03:45:44,916 INFO L78 Accepts]: Start accepts. Automaton has 13431 states and 71545 transitions. Word has length 33 [2021-06-05 03:45:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:44,916 INFO L482 AbstractCegarLoop]: Abstraction has 13431 states and 71545 transitions. [2021-06-05 03:45:44,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:44,916 INFO L276 IsEmpty]: Start isEmpty. Operand 13431 states and 71545 transitions. [2021-06-05 03:45:44,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:44,945 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:44,945 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:44,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 03:45:44,945 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 03:45:44,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:44,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1108488729, now seen corresponding path program 122 times [2021-06-05 03:45:44,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:44,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182830477] [2021-06-05 03:45:44,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:45,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:45,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:45,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182830477] [2021-06-05 03:45:45,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182830477] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:45,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:45,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:45,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171228140] [2021-06-05 03:45:45,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:45,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:45,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:45,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:45,106 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 03:45:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:45,345 INFO L93 Difference]: Finished difference Result 31558 states and 158839 transitions. [2021-06-05 03:45:45,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:45,345 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:45,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:45,445 INFO L225 Difference]: With dead ends: 31558 [2021-06-05 03:45:45,445 INFO L226 Difference]: Without dead ends: 30687 [2021-06-05 03:45:45,446 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:46,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30687 states. [2021-06-05 03:45:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30687 to 13311. [2021-06-05 03:45:46,738 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 03:45:46,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70993 transitions. [2021-06-05 03:45:46,786 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70993 transitions. Word has length 33 [2021-06-05 03:45:46,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:46,786 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70993 transitions. [2021-06-05 03:45:46,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:46,786 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70993 transitions. [2021-06-05 03:45:46,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:46,814 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:46,814 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:46,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 03:45:46,814 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 03:45:46,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:46,815 INFO L82 PathProgramCache]: Analyzing trace with hash -588287301, now seen corresponding path program 123 times [2021-06-05 03:45:46,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:46,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805239389] [2021-06-05 03:45:46,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:46,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:46,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805239389] [2021-06-05 03:45:46,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805239389] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:46,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:46,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:46,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134437505] [2021-06-05 03:45:46,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:46,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:46,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:46,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:46,992 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 03:45:47,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:47,416 INFO L93 Difference]: Finished difference Result 31777 states and 159886 transitions. [2021-06-05 03:45:47,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:47,417 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 03:45:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:47,519 INFO L225 Difference]: With dead ends: 31777 [2021-06-05 03:45:47,519 INFO L226 Difference]: Without dead ends: 31018 [2021-06-05 03:45:47,519 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:48,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31018 states. [2021-06-05 03:45:48,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31018 to 13499. [2021-06-05 03:45:48,553 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 03:45:48,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13499 states to 13499 states and 71817 transitions. [2021-06-05 03:45:48,599 INFO L78 Accepts]: Start accepts. Automaton has 13499 states and 71817 transitions. Word has length 33 [2021-06-05 03:45:48,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:48,599 INFO L482 AbstractCegarLoop]: Abstraction has 13499 states and 71817 transitions. [2021-06-05 03:45:48,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:48,600 INFO L276 IsEmpty]: Start isEmpty. Operand 13499 states and 71817 transitions. [2021-06-05 03:45:48,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:48,628 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:48,628 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:48,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 03:45:48,628 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 03:45:48,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:48,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1799793339, now seen corresponding path program 124 times [2021-06-05 03:45:48,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:48,629 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817419728] [2021-06-05 03:45:48,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:48,949 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 03:45:48,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:48,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817419728] [2021-06-05 03:45:48,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817419728] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:48,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:48,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:48,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17090750] [2021-06-05 03:45:48,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:48,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:48,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:48,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:48,950 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 03:45:49,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:49,192 INFO L93 Difference]: Finished difference Result 31912 states and 160357 transitions. [2021-06-05 03:45:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:49,192 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 03:45:49,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:49,293 INFO L225 Difference]: With dead ends: 31912 [2021-06-05 03:45:49,293 INFO L226 Difference]: Without dead ends: 30830 [2021-06-05 03:45:49,293 INFO L777 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 03:45:50,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30830 states. [2021-06-05 03:45:50,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30830 to 13311. [2021-06-05 03:45:50,496 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 03:45:50,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70901 transitions. [2021-06-05 03:45:50,541 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70901 transitions. Word has length 33 [2021-06-05 03:45:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:50,541 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70901 transitions. [2021-06-05 03:45:50,541 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 03:45:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70901 transitions. [2021-06-05 03:45:50,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:50,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:50,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:50,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 03:45:50,569 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 03:45:50,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:50,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1445035367, now seen corresponding path program 125 times [2021-06-05 03:45:50,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:50,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873691297] [2021-06-05 03:45:50,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:50,741 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 03:45:50,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:50,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873691297] [2021-06-05 03:45:50,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873691297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:50,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:50,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:50,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108497890] [2021-06-05 03:45:50,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:50,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:50,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:50,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:50,742 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 03:45:50,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:50,976 INFO L93 Difference]: Finished difference Result 31757 states and 159722 transitions. [2021-06-05 03:45:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:50,977 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:51,069 INFO L225 Difference]: With dead ends: 31757 [2021-06-05 03:45:51,070 INFO L226 Difference]: Without dead ends: 31006 [2021-06-05 03:45:51,070 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:51,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31006 states. [2021-06-05 03:45:52,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31006 to 13495. [2021-06-05 03:45:52,284 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 03:45:52,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71713 transitions. [2021-06-05 03:45:52,329 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71713 transitions. Word has length 33 [2021-06-05 03:45:52,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:52,330 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71713 transitions. [2021-06-05 03:45:52,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:52,330 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71713 transitions. [2021-06-05 03:45:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:52,356 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:52,356 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:52,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 03:45:52,356 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 03:45:52,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:52,356 INFO L82 PathProgramCache]: Analyzing trace with hash -2062558725, now seen corresponding path program 126 times [2021-06-05 03:45:52,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:52,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026769608] [2021-06-05 03:45:52,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:52,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:52,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:52,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026769608] [2021-06-05 03:45:52,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026769608] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:52,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:52,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:52,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066486465] [2021-06-05 03:45:52,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:52,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:52,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:52,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:52,538 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 03:45:52,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:52,762 INFO L93 Difference]: Finished difference Result 31900 states and 160225 transitions. [2021-06-05 03:45:52,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:52,762 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 03:45:52,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:52,863 INFO L225 Difference]: With dead ends: 31900 [2021-06-05 03:45:52,863 INFO L226 Difference]: Without dead ends: 30730 [2021-06-05 03:45:52,863 INFO L777 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 03:45:53,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30730 states. [2021-06-05 03:45:54,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30730 to 13219. [2021-06-05 03:45:54,120 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 03:45:54,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70497 transitions. [2021-06-05 03:45:54,165 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70497 transitions. Word has length 33 [2021-06-05 03:45:54,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:54,165 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70497 transitions. [2021-06-05 03:45:54,165 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 03:45:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70497 transitions. [2021-06-05 03:45:54,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:54,191 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:54,191 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:54,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 03:45:54,191 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 03:45:54,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:54,192 INFO L82 PathProgramCache]: Analyzing trace with hash 574879647, now seen corresponding path program 127 times [2021-06-05 03:45:54,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:54,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959560777] [2021-06-05 03:45:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:54,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:54,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959560777] [2021-06-05 03:45:54,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959560777] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:54,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:54,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:54,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112568258] [2021-06-05 03:45:54,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:54,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:54,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:54,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:54,371 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 03:45:54,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:54,656 INFO L93 Difference]: Finished difference Result 31223 states and 157332 transitions. [2021-06-05 03:45:54,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:54,657 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 03:45:54,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:54,753 INFO L225 Difference]: With dead ends: 31223 [2021-06-05 03:45:54,753 INFO L226 Difference]: Without dead ends: 30464 [2021-06-05 03:45:54,753 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:45:55,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30464 states. [2021-06-05 03:45:55,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30464 to 13395. [2021-06-05 03:45:56,016 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 03:45:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71305 transitions. [2021-06-05 03:45:56,061 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71305 transitions. Word has length 33 [2021-06-05 03:45:56,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:56,061 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71305 transitions. [2021-06-05 03:45:56,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:56,061 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71305 transitions. [2021-06-05 03:45:56,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:56,087 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:56,087 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:56,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 03:45:56,087 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 03:45:56,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:56,088 INFO L82 PathProgramCache]: Analyzing trace with hash -271917315, now seen corresponding path program 128 times [2021-06-05 03:45:56,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:56,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446989572] [2021-06-05 03:45:56,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:56,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:56,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446989572] [2021-06-05 03:45:56,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446989572] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:56,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:56,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:56,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874283340] [2021-06-05 03:45:56,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:56,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:56,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:56,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:56,235 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 03:45:56,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:56,703 INFO L93 Difference]: Finished difference Result 31215 states and 157184 transitions. [2021-06-05 03:45:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:56,703 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:56,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:56,803 INFO L225 Difference]: With dead ends: 31215 [2021-06-05 03:45:56,804 INFO L226 Difference]: Without dead ends: 30344 [2021-06-05 03:45:56,804 INFO L777 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 03:45:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30344 states. [2021-06-05 03:45:57,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30344 to 13275. [2021-06-05 03:45:57,824 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 03:45:57,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70757 transitions. [2021-06-05 03:45:57,867 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70757 transitions. Word has length 33 [2021-06-05 03:45:57,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:57,867 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70757 transitions. [2021-06-05 03:45:57,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:57,868 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70757 transitions. [2021-06-05 03:45:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:57,893 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:57,893 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:57,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 03:45:57,893 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 03:45:57,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:57,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1448181891, now seen corresponding path program 129 times [2021-06-05 03:45:57,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:57,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380310905] [2021-06-05 03:45:57,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:58,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:58,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:58,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380310905] [2021-06-05 03:45:58,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380310905] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:58,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:58,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:58,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169452057] [2021-06-05 03:45:58,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:58,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:58,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:58,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:58,039 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 03:45:58,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:58,389 INFO L93 Difference]: Finished difference Result 31199 states and 157176 transitions. [2021-06-05 03:45:58,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:45:58,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:45:58,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:58,481 INFO L225 Difference]: With dead ends: 31199 [2021-06-05 03:45:58,482 INFO L226 Difference]: Without dead ends: 30440 [2021-06-05 03:45:58,482 INFO L777 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 03:45:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30440 states. [2021-06-05 03:45:59,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30440 to 13387. [2021-06-05 03:45:59,504 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 03:45:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71221 transitions. [2021-06-05 03:45:59,773 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71221 transitions. Word has length 33 [2021-06-05 03:45:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:59,773 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71221 transitions. [2021-06-05 03:45:59,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71221 transitions. [2021-06-05 03:45:59,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:45:59,802 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:59,802 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:59,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 03:45:59,802 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 03:45:59,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:59,802 INFO L82 PathProgramCache]: Analyzing trace with hash 2050758525, now seen corresponding path program 130 times [2021-06-05 03:45:59,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:59,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751402827] [2021-06-05 03:45:59,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:59,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:59,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:59,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751402827] [2021-06-05 03:45:59,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751402827] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:59,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:59,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:45:59,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668519634] [2021-06-05 03:45:59,946 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:45:59,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:59,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:45:59,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:59,947 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 03:46:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:00,180 INFO L93 Difference]: Finished difference Result 31175 states and 156972 transitions. [2021-06-05 03:46:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:00,180 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:00,268 INFO L225 Difference]: With dead ends: 31175 [2021-06-05 03:46:00,268 INFO L226 Difference]: Without dead ends: 30328 [2021-06-05 03:46:00,268 INFO L777 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 03:46:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30328 states. [2021-06-05 03:46:01,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30328 to 13275. [2021-06-05 03:46:01,500 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 03:46:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70701 transitions. [2021-06-05 03:46:01,545 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70701 transitions. Word has length 33 [2021-06-05 03:46:01,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:01,545 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70701 transitions. [2021-06-05 03:46:01,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:01,545 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70701 transitions. [2021-06-05 03:46:01,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:01,571 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:01,571 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:01,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 03:46:01,571 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 03:46:01,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:01,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1990037339, now seen corresponding path program 131 times [2021-06-05 03:46:01,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:01,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929244646] [2021-06-05 03:46:01,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:01,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:01,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929244646] [2021-06-05 03:46:01,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929244646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:01,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:01,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:01,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386616875] [2021-06-05 03:46:01,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:01,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:01,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:01,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:01,732 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 03:46:01,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:01,982 INFO L93 Difference]: Finished difference Result 31183 states and 157064 transitions. [2021-06-05 03:46:01,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:01,983 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:02,076 INFO L225 Difference]: With dead ends: 31183 [2021-06-05 03:46:02,076 INFO L226 Difference]: Without dead ends: 30432 [2021-06-05 03:46:02,076 INFO L777 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 03:46:03,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30432 states. [2021-06-05 03:46:03,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30432 to 13387. [2021-06-05 03:46:03,311 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 03:46:03,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71165 transitions. [2021-06-05 03:46:03,357 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71165 transitions. Word has length 33 [2021-06-05 03:46:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:03,357 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71165 transitions. [2021-06-05 03:46:03,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71165 transitions. [2021-06-05 03:46:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:03,384 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:03,384 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:03,384 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 03:46:03,384 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 03:46:03,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:03,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1509135293, now seen corresponding path program 132 times [2021-06-05 03:46:03,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:03,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930310194] [2021-06-05 03:46:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:03,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:03,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:03,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930310194] [2021-06-05 03:46:03,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930310194] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:03,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:03,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:03,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202413934] [2021-06-05 03:46:03,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:03,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:03,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:03,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:03,533 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 03:46:03,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:03,795 INFO L93 Difference]: Finished difference Result 31167 states and 156888 transitions. [2021-06-05 03:46:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:03,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:03,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:03,891 INFO L225 Difference]: With dead ends: 31167 [2021-06-05 03:46:03,891 INFO L226 Difference]: Without dead ends: 30264 [2021-06-05 03:46:03,891 INFO L777 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 03:46:04,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30264 states. [2021-06-05 03:46:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30264 to 13219. [2021-06-05 03:46:05,150 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 03:46:05,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70469 transitions. [2021-06-05 03:46:05,194 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70469 transitions. Word has length 33 [2021-06-05 03:46:05,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:05,194 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70469 transitions. [2021-06-05 03:46:05,194 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 03:46:05,194 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70469 transitions. [2021-06-05 03:46:05,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:05,220 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:05,220 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:05,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 03:46:05,220 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 03:46:05,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:05,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1553355995, now seen corresponding path program 133 times [2021-06-05 03:46:05,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:05,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246488480] [2021-06-05 03:46:05,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:05,378 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:05,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246488480] [2021-06-05 03:46:05,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246488480] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:05,378 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:05,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:05,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766772265] [2021-06-05 03:46:05,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:05,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:05,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:05,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:05,378 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 03:46:05,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:05,638 INFO L93 Difference]: Finished difference Result 31506 states and 158659 transitions. [2021-06-05 03:46:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:05,639 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 03:46:05,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:05,741 INFO L225 Difference]: With dead ends: 31506 [2021-06-05 03:46:05,741 INFO L226 Difference]: Without dead ends: 30747 [2021-06-05 03:46:05,741 INFO L777 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 03:46:06,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30747 states. [2021-06-05 03:46:07,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30747 to 13419. [2021-06-05 03:46:07,022 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 03:46:07,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71425 transitions. [2021-06-05 03:46:07,069 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71425 transitions. Word has length 33 [2021-06-05 03:46:07,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:07,069 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71425 transitions. [2021-06-05 03:46:07,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71425 transitions. [2021-06-05 03:46:07,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:07,098 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:07,098 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:07,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 03:46:07,098 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 03:46:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:07,099 INFO L82 PathProgramCache]: Analyzing trace with hash 757329115, now seen corresponding path program 134 times [2021-06-05 03:46:07,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:07,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268226849] [2021-06-05 03:46:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:07,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:07,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268226849] [2021-06-05 03:46:07,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268226849] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:07,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:07,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:07,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4132785] [2021-06-05 03:46:07,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:07,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:07,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:07,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:07,255 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 03:46:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:07,671 INFO L93 Difference]: Finished difference Result 31482 states and 158455 transitions. [2021-06-05 03:46:07,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:07,671 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:07,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:07,779 INFO L225 Difference]: With dead ends: 31482 [2021-06-05 03:46:07,779 INFO L226 Difference]: Without dead ends: 30635 [2021-06-05 03:46:07,780 INFO L777 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 03:46:08,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30635 states. [2021-06-05 03:46:08,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30635 to 13307. [2021-06-05 03:46:08,848 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 03:46:08,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70905 transitions. [2021-06-05 03:46:08,894 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70905 transitions. Word has length 33 [2021-06-05 03:46:08,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:08,894 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70905 transitions. [2021-06-05 03:46:08,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:08,894 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70905 transitions. [2021-06-05 03:46:08,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:08,921 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:08,921 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:08,921 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 03:46:08,921 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 03:46:08,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:08,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1127380029, now seen corresponding path program 135 times [2021-06-05 03:46:08,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:08,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284059248] [2021-06-05 03:46:08,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:09,182 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2021-06-05 03:46:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:09,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:09,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284059248] [2021-06-05 03:46:09,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284059248] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:09,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:09,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:09,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127158032] [2021-06-05 03:46:09,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:09,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:09,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:09,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:09,237 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 03:46:09,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:09,496 INFO L93 Difference]: Finished difference Result 31741 states and 159662 transitions. [2021-06-05 03:46:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:09,496 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 03:46:09,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:09,595 INFO L225 Difference]: With dead ends: 31741 [2021-06-05 03:46:09,595 INFO L226 Difference]: Without dead ends: 30982 [2021-06-05 03:46:09,595 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 341.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:10,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30982 states. [2021-06-05 03:46:10,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30982 to 13495. [2021-06-05 03:46:10,860 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 03:46:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71729 transitions. [2021-06-05 03:46:10,906 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71729 transitions. Word has length 33 [2021-06-05 03:46:10,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:10,907 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71729 transitions. [2021-06-05 03:46:10,907 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 03:46:10,907 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71729 transitions. [2021-06-05 03:46:10,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:10,934 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:10,934 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:10,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 03:46:10,935 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 03:46:10,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:10,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1557081307, now seen corresponding path program 136 times [2021-06-05 03:46:10,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:10,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342737047] [2021-06-05 03:46:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:11,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:11,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342737047] [2021-06-05 03:46:11,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342737047] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:11,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:11,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:11,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939687088] [2021-06-05 03:46:11,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:11,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:11,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:11,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:11,116 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 03:46:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:11,332 INFO L93 Difference]: Finished difference Result 31876 states and 160133 transitions. [2021-06-05 03:46:11,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:11,333 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 03:46:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:11,431 INFO L225 Difference]: With dead ends: 31876 [2021-06-05 03:46:11,431 INFO L226 Difference]: Without dead ends: 30794 [2021-06-05 03:46:11,431 INFO L777 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 03:46:12,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30794 states. [2021-06-05 03:46:12,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30794 to 13307. [2021-06-05 03:46:12,746 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 03:46:12,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70817 transitions. [2021-06-05 03:46:12,812 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70817 transitions. Word has length 33 [2021-06-05 03:46:12,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:12,813 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70817 transitions. [2021-06-05 03:46:12,814 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 03:46:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70817 transitions. [2021-06-05 03:46:12,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:12,852 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:12,852 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:12,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 03:46:12,852 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 03:46:12,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:12,852 INFO L82 PathProgramCache]: Analyzing trace with hash -2104679205, now seen corresponding path program 137 times [2021-06-05 03:46:12,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:12,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214465918] [2021-06-05 03:46:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:13,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:13,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214465918] [2021-06-05 03:46:13,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214465918] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:13,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:13,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:13,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016910232] [2021-06-05 03:46:13,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:13,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:13,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:13,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:13,173 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 03:46:13,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:13,515 INFO L93 Difference]: Finished difference Result 31681 states and 159338 transitions. [2021-06-05 03:46:13,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:13,516 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:13,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:13,615 INFO L225 Difference]: With dead ends: 31681 [2021-06-05 03:46:13,615 INFO L226 Difference]: Without dead ends: 30946 [2021-06-05 03:46:13,615 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 305.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:14,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30946 states. [2021-06-05 03:46:14,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30946 to 13483. [2021-06-05 03:46:14,905 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 03:46:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71601 transitions. [2021-06-05 03:46:14,951 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71601 transitions. Word has length 33 [2021-06-05 03:46:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:14,951 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71601 transitions. [2021-06-05 03:46:14,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71601 transitions. [2021-06-05 03:46:14,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:14,978 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:14,978 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:14,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 03:46:14,978 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 03:46:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:14,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2029144899, now seen corresponding path program 138 times [2021-06-05 03:46:14,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:14,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703067549] [2021-06-05 03:46:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:15,182 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 03:46:15,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:15,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703067549] [2021-06-05 03:46:15,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703067549] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:15,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:15,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:15,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236992700] [2021-06-05 03:46:15,183 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:15,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:15,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:15,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:15,183 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 03:46:15,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:15,412 INFO L93 Difference]: Finished difference Result 31840 states and 159913 transitions. [2021-06-05 03:46:15,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:15,412 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:15,514 INFO L225 Difference]: With dead ends: 31840 [2021-06-05 03:46:15,514 INFO L226 Difference]: Without dead ends: 30682 [2021-06-05 03:46:15,514 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 205.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:16,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30682 states. [2021-06-05 03:46:16,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30682 to 13219. [2021-06-05 03:46:16,875 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 03:46:16,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70425 transitions. [2021-06-05 03:46:16,920 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70425 transitions. Word has length 33 [2021-06-05 03:46:16,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:16,920 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70425 transitions. [2021-06-05 03:46:16,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:16,920 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70425 transitions. [2021-06-05 03:46:16,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:16,948 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:16,948 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:16,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 03:46:16,948 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 03:46:16,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:16,948 INFO L82 PathProgramCache]: Analyzing trace with hash -276468423, now seen corresponding path program 139 times [2021-06-05 03:46:16,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:16,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964895949] [2021-06-05 03:46:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:17,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:17,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:17,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964895949] [2021-06-05 03:46:17,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964895949] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:17,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:17,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:17,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303858837] [2021-06-05 03:46:17,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:17,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:17,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:17,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:17,121 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 03:46:17,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:17,355 INFO L93 Difference]: Finished difference Result 31478 states and 158515 transitions. [2021-06-05 03:46:17,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:17,355 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:17,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:17,699 INFO L225 Difference]: With dead ends: 31478 [2021-06-05 03:46:17,699 INFO L226 Difference]: Without dead ends: 30727 [2021-06-05 03:46:17,699 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 198.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:18,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30727 states. [2021-06-05 03:46:18,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30727 to 13419. [2021-06-05 03:46:18,838 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 03:46:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71381 transitions. [2021-06-05 03:46:18,896 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71381 transitions. Word has length 33 [2021-06-05 03:46:18,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:18,896 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71381 transitions. [2021-06-05 03:46:18,896 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 03:46:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71381 transitions. [2021-06-05 03:46:18,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:18,930 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:18,930 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:18,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 03:46:18,930 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 03:46:18,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:18,930 INFO L82 PathProgramCache]: Analyzing trace with hash -757370469, now seen corresponding path program 140 times [2021-06-05 03:46:18,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:18,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755411646] [2021-06-05 03:46:18,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:19,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:19,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:19,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755411646] [2021-06-05 03:46:19,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755411646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:19,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:19,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:19,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110136786] [2021-06-05 03:46:19,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:19,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:19,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:19,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:19,113 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 03:46:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:19,534 INFO L93 Difference]: Finished difference Result 31462 states and 158339 transitions. [2021-06-05 03:46:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:19,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:19,639 INFO L225 Difference]: With dead ends: 31462 [2021-06-05 03:46:19,639 INFO L226 Difference]: Without dead ends: 30615 [2021-06-05 03:46:19,639 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 202.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:20,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30615 states. [2021-06-05 03:46:20,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30615 to 13307. [2021-06-05 03:46:20,696 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 03:46:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70861 transitions. [2021-06-05 03:46:20,973 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70861 transitions. Word has length 33 [2021-06-05 03:46:20,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:20,973 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70861 transitions. [2021-06-05 03:46:20,973 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 03:46:20,973 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70861 transitions. [2021-06-05 03:46:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:21,006 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:21,006 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:21,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 03:46:21,006 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 03:46:21,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:21,006 INFO L82 PathProgramCache]: Analyzing trace with hash -702444389, now seen corresponding path program 141 times [2021-06-05 03:46:21,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:21,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459827246] [2021-06-05 03:46:21,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:21,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:21,184 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:21,184 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459827246] [2021-06-05 03:46:21,184 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459827246] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:21,184 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:21,184 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:21,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392156560] [2021-06-05 03:46:21,184 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:21,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:21,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:21,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:21,185 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 03:46:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:21,425 INFO L93 Difference]: Finished difference Result 31709 states and 159502 transitions. [2021-06-05 03:46:21,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:21,426 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:21,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:21,522 INFO L225 Difference]: With dead ends: 31709 [2021-06-05 03:46:21,522 INFO L226 Difference]: Without dead ends: 30958 [2021-06-05 03:46:21,522 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 204.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30958 states. [2021-06-05 03:46:22,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30958 to 13491. [2021-06-05 03:46:22,775 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 03:46:22,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71673 transitions. [2021-06-05 03:46:22,822 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71673 transitions. Word has length 33 [2021-06-05 03:46:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:22,822 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71673 transitions. [2021-06-05 03:46:22,822 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 03:46:22,822 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71673 transitions. [2021-06-05 03:46:22,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:22,850 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:22,850 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:22,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 03:46:22,851 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 03:46:22,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:22,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1016620187, now seen corresponding path program 142 times [2021-06-05 03:46:22,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:22,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808819019] [2021-06-05 03:46:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:23,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:23,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:23,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808819019] [2021-06-05 03:46:23,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808819019] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:23,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:23,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:23,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228916385] [2021-06-05 03:46:23,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:23,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:23,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:23,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:23,050 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 03:46:23,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:23,274 INFO L93 Difference]: Finished difference Result 31852 states and 160005 transitions. [2021-06-05 03:46:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:23,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:23,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:23,372 INFO L225 Difference]: With dead ends: 31852 [2021-06-05 03:46:23,372 INFO L226 Difference]: Without dead ends: 30774 [2021-06-05 03:46:23,372 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 204.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:24,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30774 states. [2021-06-05 03:46:24,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30774 to 13307. [2021-06-05 03:46:24,606 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 03:46:24,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70773 transitions. [2021-06-05 03:46:24,652 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70773 transitions. Word has length 33 [2021-06-05 03:46:24,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:24,652 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70773 transitions. [2021-06-05 03:46:24,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70773 transitions. [2021-06-05 03:46:24,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:24,680 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:24,680 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:24,680 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 03:46:24,680 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 03:46:24,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:24,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1491830659, now seen corresponding path program 143 times [2021-06-05 03:46:24,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:24,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328653114] [2021-06-05 03:46:24,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:24,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:24,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328653114] [2021-06-05 03:46:24,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328653114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:24,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:24,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:24,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298880334] [2021-06-05 03:46:24,853 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:24,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:24,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:24,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:24,854 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 03:46:25,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:25,083 INFO L93 Difference]: Finished difference Result 31669 states and 159250 transitions. [2021-06-05 03:46:25,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:25,084 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:25,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:25,184 INFO L225 Difference]: With dead ends: 31669 [2021-06-05 03:46:25,184 INFO L226 Difference]: Without dead ends: 30934 [2021-06-05 03:46:25,185 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 198.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:26,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30934 states. [2021-06-05 03:46:26,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30934 to 13483. [2021-06-05 03:46:26,464 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 03:46:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71557 transitions. [2021-06-05 03:46:26,510 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71557 transitions. Word has length 33 [2021-06-05 03:46:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:26,510 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71557 transitions. [2021-06-05 03:46:26,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71557 transitions. [2021-06-05 03:46:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:26,537 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:26,537 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:26,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 03:46:26,537 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 03:46:26,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:26,538 INFO L82 PathProgramCache]: Analyzing trace with hash 849732827, now seen corresponding path program 144 times [2021-06-05 03:46:26,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:26,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007255881] [2021-06-05 03:46:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:26,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:26,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007255881] [2021-06-05 03:46:26,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007255881] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:26,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:26,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:26,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540064205] [2021-06-05 03:46:26,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:26,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:26,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:26,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:26,709 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 03:46:26,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:26,937 INFO L93 Difference]: Finished difference Result 31828 states and 159825 transitions. [2021-06-05 03:46:26,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:26,938 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 03:46:26,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:27,031 INFO L225 Difference]: With dead ends: 31828 [2021-06-05 03:46:27,031 INFO L226 Difference]: Without dead ends: 30626 [2021-06-05 03:46:27,031 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:28,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30626 states. [2021-06-05 03:46:28,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30626 to 13175. [2021-06-05 03:46:28,277 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 03:46:28,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70251 transitions. [2021-06-05 03:46:28,320 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70251 transitions. Word has length 33 [2021-06-05 03:46:28,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:28,320 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70251 transitions. [2021-06-05 03:46:28,320 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 03:46:28,320 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70251 transitions. [2021-06-05 03:46:28,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:28,345 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:28,345 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:28,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 03:46:28,345 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 03:46:28,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:28,346 INFO L82 PathProgramCache]: Analyzing trace with hash 450086331, now seen corresponding path program 145 times [2021-06-05 03:46:28,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:28,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636973799] [2021-06-05 03:46:28,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:28,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:28,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:28,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636973799] [2021-06-05 03:46:28,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636973799] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:28,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:28,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:28,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744370721] [2021-06-05 03:46:28,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:28,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:28,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:28,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:28,506 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 03:46:28,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:28,905 INFO L93 Difference]: Finished difference Result 31644 states and 159296 transitions. [2021-06-05 03:46:28,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:28,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:28,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:28,998 INFO L225 Difference]: With dead ends: 31644 [2021-06-05 03:46:28,998 INFO L226 Difference]: Without dead ends: 30885 [2021-06-05 03:46:28,998 INFO L777 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 03:46:29,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30885 states. [2021-06-05 03:46:30,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30885 to 13433. [2021-06-05 03:46:30,022 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 03:46:30,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13433 states to 13433 states and 71534 transitions. [2021-06-05 03:46:30,066 INFO L78 Accepts]: Start accepts. Automaton has 13433 states and 71534 transitions. Word has length 33 [2021-06-05 03:46:30,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:30,066 INFO L482 AbstractCegarLoop]: Abstraction has 13433 states and 71534 transitions. [2021-06-05 03:46:30,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:30,066 INFO L276 IsEmpty]: Start isEmpty. Operand 13433 states and 71534 transitions. [2021-06-05 03:46:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:30,091 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:30,091 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:30,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 03:46:30,091 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 03:46:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:30,092 INFO L82 PathProgramCache]: Analyzing trace with hash -396710631, now seen corresponding path program 146 times [2021-06-05 03:46:30,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:30,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349972444] [2021-06-05 03:46:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:30,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:30,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349972444] [2021-06-05 03:46:30,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349972444] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:30,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:30,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:30,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304050470] [2021-06-05 03:46:30,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:30,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:30,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:30,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:30,369 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 03:46:30,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:30,591 INFO L93 Difference]: Finished difference Result 31636 states and 159148 transitions. [2021-06-05 03:46:30,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:30,592 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:30,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:30,687 INFO L225 Difference]: With dead ends: 31636 [2021-06-05 03:46:30,687 INFO L226 Difference]: Without dead ends: 30765 [2021-06-05 03:46:30,687 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:31,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30765 states. [2021-06-05 03:46:31,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30765 to 13313. [2021-06-05 03:46:31,861 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 03:46:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70982 transitions. [2021-06-05 03:46:31,903 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70982 transitions. Word has length 33 [2021-06-05 03:46:31,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:31,903 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70982 transitions. [2021-06-05 03:46:31,903 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 03:46:31,903 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70982 transitions. [2021-06-05 03:46:31,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:31,929 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:31,929 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:31,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 03:46:31,929 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 03:46:31,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:31,929 INFO L82 PathProgramCache]: Analyzing trace with hash -2093486661, now seen corresponding path program 147 times [2021-06-05 03:46:31,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:31,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154595730] [2021-06-05 03:46:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:32,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:32,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:32,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154595730] [2021-06-05 03:46:32,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154595730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:32,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:32,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:32,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147789871] [2021-06-05 03:46:32,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:32,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:32,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:32,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:32,095 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 03:46:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:32,324 INFO L93 Difference]: Finished difference Result 31855 states and 160195 transitions. [2021-06-05 03:46:32,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:32,325 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:32,423 INFO L225 Difference]: With dead ends: 31855 [2021-06-05 03:46:32,423 INFO L226 Difference]: Without dead ends: 31096 [2021-06-05 03:46:32,424 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:33,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31096 states. [2021-06-05 03:46:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31096 to 13501. [2021-06-05 03:46:33,702 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 03:46:33,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13501 states to 13501 states and 71806 transitions. [2021-06-05 03:46:33,762 INFO L78 Accepts]: Start accepts. Automaton has 13501 states and 71806 transitions. Word has length 33 [2021-06-05 03:46:33,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:33,762 INFO L482 AbstractCegarLoop]: Abstraction has 13501 states and 71806 transitions. [2021-06-05 03:46:33,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:33,762 INFO L276 IsEmpty]: Start isEmpty. Operand 13501 states and 71806 transitions. [2021-06-05 03:46:33,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:33,796 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:33,796 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:33,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 03:46:33,796 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 03:46:33,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:33,796 INFO L82 PathProgramCache]: Analyzing trace with hash 294593979, now seen corresponding path program 148 times [2021-06-05 03:46:33,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:33,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120244819] [2021-06-05 03:46:33,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:34,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:34,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:34,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120244819] [2021-06-05 03:46:34,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120244819] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:34,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:34,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:34,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391614849] [2021-06-05 03:46:34,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:34,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:34,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:34,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:34,037 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 03:46:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:34,251 INFO L93 Difference]: Finished difference Result 31990 states and 160666 transitions. [2021-06-05 03:46:34,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:34,251 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:34,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:34,348 INFO L225 Difference]: With dead ends: 31990 [2021-06-05 03:46:34,348 INFO L226 Difference]: Without dead ends: 30908 [2021-06-05 03:46:34,348 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:35,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30908 states. [2021-06-05 03:46:35,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30908 to 13313. [2021-06-05 03:46:35,690 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 03:46:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70890 transitions. [2021-06-05 03:46:35,734 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70890 transitions. Word has length 33 [2021-06-05 03:46:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:35,734 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70890 transitions. [2021-06-05 03:46:35,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70890 transitions. [2021-06-05 03:46:35,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:35,761 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:35,761 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:35,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 03:46:35,762 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 03:46:35,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:35,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1344732569, now seen corresponding path program 149 times [2021-06-05 03:46:35,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:35,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872565112] [2021-06-05 03:46:35,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:35,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:35,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:35,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872565112] [2021-06-05 03:46:35,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872565112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:35,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:35,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:35,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272710826] [2021-06-05 03:46:35,935 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:35,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:35,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:35,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:35,935 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 03:46:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:36,167 INFO L93 Difference]: Finished difference Result 31835 states and 160031 transitions. [2021-06-05 03:46:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:36,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:36,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:36,266 INFO L225 Difference]: With dead ends: 31835 [2021-06-05 03:46:36,266 INFO L226 Difference]: Without dead ends: 31084 [2021-06-05 03:46:36,266 INFO L777 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 03:46:37,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31084 states. [2021-06-05 03:46:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31084 to 13497. [2021-06-05 03:46:37,649 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 03:46:37,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71702 transitions. [2021-06-05 03:46:37,696 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71702 transitions. Word has length 33 [2021-06-05 03:46:37,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:37,696 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71702 transitions. [2021-06-05 03:46:37,696 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 03:46:37,696 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71702 transitions. [2021-06-05 03:46:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:37,725 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:37,725 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:37,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 03:46:37,725 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 03:46:37,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:37,725 INFO L82 PathProgramCache]: Analyzing trace with hash 727209211, now seen corresponding path program 150 times [2021-06-05 03:46:37,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:37,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156116567] [2021-06-05 03:46:37,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:37,892 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 03:46:37,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:37,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156116567] [2021-06-05 03:46:37,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156116567] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:37,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:37,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:37,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849498106] [2021-06-05 03:46:37,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:37,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:37,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:37,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:37,893 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 03:46:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:38,427 INFO L93 Difference]: Finished difference Result 31978 states and 160534 transitions. [2021-06-05 03:46:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:38,428 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 03:46:38,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:38,562 INFO L225 Difference]: With dead ends: 31978 [2021-06-05 03:46:38,562 INFO L226 Difference]: Without dead ends: 30808 [2021-06-05 03:46:38,563 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30808 states. [2021-06-05 03:46:39,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30808 to 13221. [2021-06-05 03:46:39,634 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 03:46:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13221 states to 13221 states and 70484 transitions. [2021-06-05 03:46:39,680 INFO L78 Accepts]: Start accepts. Automaton has 13221 states and 70484 transitions. Word has length 33 [2021-06-05 03:46:39,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:39,681 INFO L482 AbstractCegarLoop]: Abstraction has 13221 states and 70484 transitions. [2021-06-05 03:46:39,681 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 03:46:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 13221 states and 70484 transitions. [2021-06-05 03:46:39,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:39,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:39,708 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:39,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 03:46:39,708 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 03:46:39,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:39,709 INFO L82 PathProgramCache]: Analyzing trace with hash -849025221, now seen corresponding path program 151 times [2021-06-05 03:46:39,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:39,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506644820] [2021-06-05 03:46:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:39,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:39,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:39,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506644820] [2021-06-05 03:46:39,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506644820] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:39,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:39,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:39,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965852834] [2021-06-05 03:46:39,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:39,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:39,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:39,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:39,849 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 03:46:40,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:40,282 INFO L93 Difference]: Finished difference Result 31353 states and 157851 transitions. [2021-06-05 03:46:40,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:40,283 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 03:46:40,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:40,379 INFO L225 Difference]: With dead ends: 31353 [2021-06-05 03:46:40,379 INFO L226 Difference]: Without dead ends: 30594 [2021-06-05 03:46:40,379 INFO L777 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 03:46:41,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30594 states. [2021-06-05 03:46:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30594 to 13401. [2021-06-05 03:46:41,457 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 03:46:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13401 states to 13401 states and 71312 transitions. [2021-06-05 03:46:41,733 INFO L78 Accepts]: Start accepts. Automaton has 13401 states and 71312 transitions. Word has length 33 [2021-06-05 03:46:41,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:41,733 INFO L482 AbstractCegarLoop]: Abstraction has 13401 states and 71312 transitions. [2021-06-05 03:46:41,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:41,733 INFO L276 IsEmpty]: Start isEmpty. Operand 13401 states and 71312 transitions. [2021-06-05 03:46:41,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:41,766 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:41,766 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:41,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 03:46:41,766 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 03:46:41,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:41,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1695822183, now seen corresponding path program 152 times [2021-06-05 03:46:41,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:41,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568829177] [2021-06-05 03:46:41,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:41,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:41,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:41,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568829177] [2021-06-05 03:46:41,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568829177] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:41,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:41,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:41,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103108649] [2021-06-05 03:46:41,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:41,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:41,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:41,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:41,904 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 03:46:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:42,147 INFO L93 Difference]: Finished difference Result 31345 states and 157703 transitions. [2021-06-05 03:46:42,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:42,148 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 03:46:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:42,247 INFO L225 Difference]: With dead ends: 31345 [2021-06-05 03:46:42,247 INFO L226 Difference]: Without dead ends: 30474 [2021-06-05 03:46:42,248 INFO L777 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 03:46:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30474 states. [2021-06-05 03:46:43,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30474 to 13281. [2021-06-05 03:46:43,495 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 03:46:43,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13281 states to 13281 states and 70760 transitions. [2021-06-05 03:46:43,540 INFO L78 Accepts]: Start accepts. Automaton has 13281 states and 70760 transitions. Word has length 33 [2021-06-05 03:46:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:43,541 INFO L482 AbstractCegarLoop]: Abstraction has 13281 states and 70760 transitions. [2021-06-05 03:46:43,541 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 03:46:43,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13281 states and 70760 transitions. [2021-06-05 03:46:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:43,567 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:43,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:43,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 03:46:43,568 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 03:46:43,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:43,568 INFO L82 PathProgramCache]: Analyzing trace with hash 263930969, now seen corresponding path program 153 times [2021-06-05 03:46:43,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:43,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952328573] [2021-06-05 03:46:43,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:43,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:43,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952328573] [2021-06-05 03:46:43,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952328573] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:43,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:43,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:43,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738978756] [2021-06-05 03:46:43,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:43,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:43,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:43,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:43,732 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 03:46:43,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:43,973 INFO L93 Difference]: Finished difference Result 31369 states and 157847 transitions. [2021-06-05 03:46:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:43,974 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:43,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:44,068 INFO L225 Difference]: With dead ends: 31369 [2021-06-05 03:46:44,069 INFO L226 Difference]: Without dead ends: 30610 [2021-06-05 03:46:44,069 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:45,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30610 states. [2021-06-05 03:46:45,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30610 to 13405. [2021-06-05 03:46:45,305 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 03:46:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13405 states to 13405 states and 71264 transitions. [2021-06-05 03:46:45,351 INFO L78 Accepts]: Start accepts. Automaton has 13405 states and 71264 transitions. Word has length 33 [2021-06-05 03:46:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:45,351 INFO L482 AbstractCegarLoop]: Abstraction has 13405 states and 71264 transitions. [2021-06-05 03:46:45,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 13405 states and 71264 transitions. [2021-06-05 03:46:45,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:45,378 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:45,378 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:45,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 03:46:45,378 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 03:46:45,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:45,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1272669095, now seen corresponding path program 154 times [2021-06-05 03:46:45,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:45,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922114914] [2021-06-05 03:46:45,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:45,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:45,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:45,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922114914] [2021-06-05 03:46:45,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922114914] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:45,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:45,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:45,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335900384] [2021-06-05 03:46:45,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:45,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:45,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:45,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:45,518 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 03:46:45,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:45,767 INFO L93 Difference]: Finished difference Result 31373 states and 157735 transitions. [2021-06-05 03:46:45,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:45,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:45,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:45,869 INFO L225 Difference]: With dead ends: 31373 [2021-06-05 03:46:45,869 INFO L226 Difference]: Without dead ends: 30486 [2021-06-05 03:46:45,869 INFO L777 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 03:46:46,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30486 states. [2021-06-05 03:46:47,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30486 to 13281. [2021-06-05 03:46:47,115 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 03:46:47,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13281 states to 13281 states and 70700 transitions. [2021-06-05 03:46:47,161 INFO L78 Accepts]: Start accepts. Automaton has 13281 states and 70700 transitions. Word has length 33 [2021-06-05 03:46:47,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:47,161 INFO L482 AbstractCegarLoop]: Abstraction has 13281 states and 70700 transitions. [2021-06-05 03:46:47,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:47,161 INFO L276 IsEmpty]: Start isEmpty. Operand 13281 states and 70700 transitions. [2021-06-05 03:46:47,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:47,187 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:47,187 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:47,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 03:46:47,187 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 03:46:47,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:47,188 INFO L82 PathProgramCache]: Analyzing trace with hash -592817097, now seen corresponding path program 155 times [2021-06-05 03:46:47,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:47,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498390309] [2021-06-05 03:46:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:47,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:47,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498390309] [2021-06-05 03:46:47,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498390309] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:47,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:47,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:47,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798856842] [2021-06-05 03:46:47,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:47,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:47,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:47,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:47,326 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 03:46:47,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:47,587 INFO L93 Difference]: Finished difference Result 31349 states and 157715 transitions. [2021-06-05 03:46:47,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:47,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:47,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:47,682 INFO L225 Difference]: With dead ends: 31349 [2021-06-05 03:46:47,682 INFO L226 Difference]: Without dead ends: 30598 [2021-06-05 03:46:47,682 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:48,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30598 states. [2021-06-05 03:46:48,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30598 to 13401. [2021-06-05 03:46:48,990 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 03:46:49,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13401 states to 13401 states and 71192 transitions. [2021-06-05 03:46:49,035 INFO L78 Accepts]: Start accepts. Automaton has 13401 states and 71192 transitions. Word has length 33 [2021-06-05 03:46:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:49,035 INFO L482 AbstractCegarLoop]: Abstraction has 13401 states and 71192 transitions. [2021-06-05 03:46:49,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:49,035 INFO L276 IsEmpty]: Start isEmpty. Operand 13401 states and 71192 transitions. [2021-06-05 03:46:49,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:49,063 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:49,063 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:49,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 03:46:49,063 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 03:46:49,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:49,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1698511513, now seen corresponding path program 156 times [2021-06-05 03:46:49,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:49,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318132144] [2021-06-05 03:46:49,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:49,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:49,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:49,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318132144] [2021-06-05 03:46:49,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318132144] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:49,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:49,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:49,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062135306] [2021-06-05 03:46:49,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:49,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:49,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:49,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:49,201 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 03:46:49,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:49,666 INFO L93 Difference]: Finished difference Result 31361 states and 157635 transitions. [2021-06-05 03:46:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:49,667 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 03:46:49,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:49,765 INFO L225 Difference]: With dead ends: 31361 [2021-06-05 03:46:49,765 INFO L226 Difference]: Without dead ends: 30418 [2021-06-05 03:46:49,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30418 states. [2021-06-05 03:46:50,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30418 to 13221. [2021-06-05 03:46:50,809 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 03:46:50,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13221 states to 13221 states and 70454 transitions. [2021-06-05 03:46:50,852 INFO L78 Accepts]: Start accepts. Automaton has 13221 states and 70454 transitions. Word has length 33 [2021-06-05 03:46:50,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:50,852 INFO L482 AbstractCegarLoop]: Abstraction has 13221 states and 70454 transitions. [2021-06-05 03:46:50,853 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 03:46:50,853 INFO L276 IsEmpty]: Start isEmpty. Operand 13221 states and 70454 transitions. [2021-06-05 03:46:50,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:50,879 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:50,879 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:50,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 03:46:50,879 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 03:46:50,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:50,880 INFO L82 PathProgramCache]: Analyzing trace with hash 363547737, now seen corresponding path program 157 times [2021-06-05 03:46:50,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:50,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712498070] [2021-06-05 03:46:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:51,040 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:51,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712498070] [2021-06-05 03:46:51,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712498070] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:51,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:51,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:51,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564463427] [2021-06-05 03:46:51,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:51,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:51,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:51,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:51,040 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 03:46:51,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:51,439 INFO L93 Difference]: Finished difference Result 31879 states and 160267 transitions. [2021-06-05 03:46:51,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:51,439 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 03:46:51,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:51,533 INFO L225 Difference]: With dead ends: 31879 [2021-06-05 03:46:51,533 INFO L226 Difference]: Without dead ends: 31120 [2021-06-05 03:46:51,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:52,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31120 states. [2021-06-05 03:46:52,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31120 to 13503. [2021-06-05 03:46:52,560 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 03:46:52,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71799 transitions. [2021-06-05 03:46:52,815 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71799 transitions. Word has length 33 [2021-06-05 03:46:52,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:52,815 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71799 transitions. [2021-06-05 03:46:52,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:52,815 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71799 transitions. [2021-06-05 03:46:52,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:52,841 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:52,841 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:52,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-05 03:46:52,841 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 03:46:52,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:52,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1543338919, now seen corresponding path program 158 times [2021-06-05 03:46:52,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:52,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155587545] [2021-06-05 03:46:52,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:52,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:52,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155587545] [2021-06-05 03:46:52,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155587545] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:52,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:52,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:52,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911052063] [2021-06-05 03:46:52,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:52,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:52,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:52,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:52,999 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 03:46:53,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:53,194 INFO L93 Difference]: Finished difference Result 32014 states and 160738 transitions. [2021-06-05 03:46:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:53,194 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:53,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:53,282 INFO L225 Difference]: With dead ends: 32014 [2021-06-05 03:46:53,282 INFO L226 Difference]: Without dead ends: 30932 [2021-06-05 03:46:53,282 INFO L777 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 03:46:54,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30932 states. [2021-06-05 03:46:54,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30932 to 13315. [2021-06-05 03:46:54,531 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 03:46:54,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70881 transitions. [2021-06-05 03:46:54,576 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70881 transitions. Word has length 33 [2021-06-05 03:46:54,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:54,576 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70881 transitions. [2021-06-05 03:46:54,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:54,576 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70881 transitions. [2021-06-05 03:46:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:54,602 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:54,602 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:54,602 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-05 03:46:54,602 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 03:46:54,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:54,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1764665275, now seen corresponding path program 159 times [2021-06-05 03:46:54,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:54,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128192015] [2021-06-05 03:46:54,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:54,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:54,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:54,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128192015] [2021-06-05 03:46:54,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128192015] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:54,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:54,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:54,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88571927] [2021-06-05 03:46:54,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:54,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:54,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:54,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:54,773 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 03:46:55,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:55,005 INFO L93 Difference]: Finished difference Result 31684 states and 159270 transitions. [2021-06-05 03:46:55,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:55,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:55,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:55,095 INFO L225 Difference]: With dead ends: 31684 [2021-06-05 03:46:55,095 INFO L226 Difference]: Without dead ends: 30925 [2021-06-05 03:46:55,095 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 193.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30925 states. [2021-06-05 03:46:56,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30925 to 13439. [2021-06-05 03:46:56,362 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 03:46:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13439 states to 13439 states and 71385 transitions. [2021-06-05 03:46:56,407 INFO L78 Accepts]: Start accepts. Automaton has 13439 states and 71385 transitions. Word has length 33 [2021-06-05 03:46:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:56,407 INFO L482 AbstractCegarLoop]: Abstraction has 13439 states and 71385 transitions. [2021-06-05 03:46:56,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 13439 states and 71385 transitions. [2021-06-05 03:46:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:56,434 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:56,434 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:56,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-05 03:46:56,435 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 03:46:56,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:56,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1809922983, now seen corresponding path program 160 times [2021-06-05 03:46:56,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:56,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201602334] [2021-06-05 03:46:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:56,580 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 03:46:56,580 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:56,580 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201602334] [2021-06-05 03:46:56,580 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201602334] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:56,580 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:56,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:56,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607184316] [2021-06-05 03:46:56,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:56,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:56,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:56,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:56,581 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 03:46:56,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:56,818 INFO L93 Difference]: Finished difference Result 31688 states and 159158 transitions. [2021-06-05 03:46:56,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:56,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:46:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:56,914 INFO L225 Difference]: With dead ends: 31688 [2021-06-05 03:46:56,914 INFO L226 Difference]: Without dead ends: 30801 [2021-06-05 03:46:56,914 INFO L777 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 03:46:57,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30801 states. [2021-06-05 03:46:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30801 to 13315. [2021-06-05 03:46:58,165 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 03:46:58,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 70819 transitions. [2021-06-05 03:46:58,209 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 70819 transitions. Word has length 33 [2021-06-05 03:46:58,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:58,210 INFO L482 AbstractCegarLoop]: Abstraction has 13315 states and 70819 transitions. [2021-06-05 03:46:58,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:58,210 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 70819 transitions. [2021-06-05 03:46:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:46:58,236 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:58,236 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:58,236 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-05 03:46:58,236 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 03:46:58,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:58,236 INFO L82 PathProgramCache]: Analyzing trace with hash -747250599, now seen corresponding path program 161 times [2021-06-05 03:46:58,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:58,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936440542] [2021-06-05 03:46:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:58,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:58,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936440542] [2021-06-05 03:46:58,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936440542] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:58,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:58,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:46:58,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39950995] [2021-06-05 03:46:58,379 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:46:58,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:58,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:46:58,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:58,380 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 03:46:58,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:58,623 INFO L93 Difference]: Finished difference Result 32020 states and 160725 transitions. [2021-06-05 03:46:58,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:46:58,624 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 03:46:58,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:58,729 INFO L225 Difference]: With dead ends: 32020 [2021-06-05 03:46:58,729 INFO L226 Difference]: Without dead ends: 31126 [2021-06-05 03:46:58,729 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 145.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:46:59,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31126 states. [2021-06-05 03:46:59,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31126 to 13505. [2021-06-05 03:47:00,015 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 03:47:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13505 states to 13505 states and 71584 transitions. [2021-06-05 03:47:00,060 INFO L78 Accepts]: Start accepts. Automaton has 13505 states and 71584 transitions. Word has length 33 [2021-06-05 03:47:00,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:00,060 INFO L482 AbstractCegarLoop]: Abstraction has 13505 states and 71584 transitions. [2021-06-05 03:47:00,060 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:00,060 INFO L276 IsEmpty]: Start isEmpty. Operand 13505 states and 71584 transitions. [2021-06-05 03:47:00,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:00,087 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:00,087 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:00,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-05 03:47:00,087 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 03:47:00,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:00,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1921210309, now seen corresponding path program 162 times [2021-06-05 03:47:00,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:00,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934693216] [2021-06-05 03:47:00,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:00,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:00,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934693216] [2021-06-05 03:47:00,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934693216] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:00,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:00,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:00,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230897871] [2021-06-05 03:47:00,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:00,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:00,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:00,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:00,234 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 03:47:00,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:00,667 INFO L93 Difference]: Finished difference Result 31889 states and 159952 transitions. [2021-06-05 03:47:00,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:00,668 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:00,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:00,775 INFO L225 Difference]: With dead ends: 31889 [2021-06-05 03:47:00,776 INFO L226 Difference]: Without dead ends: 30842 [2021-06-05 03:47:00,776 INFO L777 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 03:47:01,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30842 states. [2021-06-05 03:47:01,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30842 to 13221. [2021-06-05 03:47:01,832 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 03:47:01,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13221 states to 13221 states and 70408 transitions. [2021-06-05 03:47:01,876 INFO L78 Accepts]: Start accepts. Automaton has 13221 states and 70408 transitions. Word has length 33 [2021-06-05 03:47:01,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:01,876 INFO L482 AbstractCegarLoop]: Abstraction has 13221 states and 70408 transitions. [2021-06-05 03:47:01,876 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:01,876 INFO L276 IsEmpty]: Start isEmpty. Operand 13221 states and 70408 transitions. [2021-06-05 03:47:01,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:01,902 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:01,902 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:01,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-05 03:47:01,902 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 03:47:01,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:01,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1466276681, now seen corresponding path program 163 times [2021-06-05 03:47:01,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:01,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798751270] [2021-06-05 03:47:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:02,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:02,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798751270] [2021-06-05 03:47:02,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798751270] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:02,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:02,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:02,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729763180] [2021-06-05 03:47:02,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:02,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:02,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:02,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:02,205 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 03:47:02,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:02,442 INFO L93 Difference]: Finished difference Result 31841 states and 160080 transitions. [2021-06-05 03:47:02,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:02,442 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 03:47:02,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:02,546 INFO L225 Difference]: With dead ends: 31841 [2021-06-05 03:47:02,546 INFO L226 Difference]: Without dead ends: 31090 [2021-06-05 03:47:02,547 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 324.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:03,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31090 states. [2021-06-05 03:47:03,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31090 to 13497. [2021-06-05 03:47:03,787 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 03:47:03,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71732 transitions. [2021-06-05 03:47:03,832 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71732 transitions. Word has length 33 [2021-06-05 03:47:03,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:03,833 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71732 transitions. [2021-06-05 03:47:03,833 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 03:47:03,833 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71732 transitions. [2021-06-05 03:47:03,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:03,859 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:03,859 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:03,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-05 03:47:03,859 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 03:47:03,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:03,859 INFO L82 PathProgramCache]: Analyzing trace with hash -2083800039, now seen corresponding path program 164 times [2021-06-05 03:47:03,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:03,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437550717] [2021-06-05 03:47:03,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:04,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:04,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:04,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437550717] [2021-06-05 03:47:04,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437550717] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:04,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:04,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:04,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16178637] [2021-06-05 03:47:04,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:04,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:04,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:04,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:04,015 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 03:47:04,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:04,225 INFO L93 Difference]: Finished difference Result 31984 states and 160583 transitions. [2021-06-05 03:47:04,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:04,226 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:04,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:04,317 INFO L225 Difference]: With dead ends: 31984 [2021-06-05 03:47:04,317 INFO L226 Difference]: Without dead ends: 30906 [2021-06-05 03:47:04,317 INFO L777 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 03:47:05,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30906 states. [2021-06-05 03:47:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30906 to 13313. [2021-06-05 03:47:05,549 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 03:47:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70828 transitions. [2021-06-05 03:47:05,594 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70828 transitions. Word has length 33 [2021-06-05 03:47:05,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:05,594 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70828 transitions. [2021-06-05 03:47:05,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:05,594 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70828 transitions. [2021-06-05 03:47:05,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:05,620 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:05,620 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:05,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-05 03:47:05,620 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 03:47:05,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:05,620 INFO L82 PathProgramCache]: Analyzing trace with hash -65159143, now seen corresponding path program 165 times [2021-06-05 03:47:05,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:05,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001905887] [2021-06-05 03:47:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:05,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:05,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001905887] [2021-06-05 03:47:05,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001905887] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:05,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:05,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:05,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782425566] [2021-06-05 03:47:05,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:05,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:05,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:05,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:05,763 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 03:47:05,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:05,993 INFO L93 Difference]: Finished difference Result 31646 states and 159085 transitions. [2021-06-05 03:47:05,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:05,993 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 03:47:05,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:06,092 INFO L225 Difference]: With dead ends: 31646 [2021-06-05 03:47:06,092 INFO L226 Difference]: Without dead ends: 30895 [2021-06-05 03:47:06,092 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30895 states. [2021-06-05 03:47:07,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30895 to 13433. [2021-06-05 03:47:07,429 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 03:47:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13433 states to 13433 states and 71320 transitions. [2021-06-05 03:47:07,473 INFO L78 Accepts]: Start accepts. Automaton has 13433 states and 71320 transitions. Word has length 33 [2021-06-05 03:47:07,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:07,473 INFO L482 AbstractCegarLoop]: Abstraction has 13433 states and 71320 transitions. [2021-06-05 03:47:07,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 13433 states and 71320 transitions. [2021-06-05 03:47:07,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:07,501 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:07,501 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:07,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-05 03:47:07,501 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 03:47:07,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:07,501 INFO L82 PathProgramCache]: Analyzing trace with hash 188181273, now seen corresponding path program 166 times [2021-06-05 03:47:07,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:07,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997833430] [2021-06-05 03:47:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:07,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:07,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:07,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997833430] [2021-06-05 03:47:07,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997833430] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:07,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:07,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:07,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224360968] [2021-06-05 03:47:07,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:07,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:07,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:07,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:07,649 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 03:47:07,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:07,884 INFO L93 Difference]: Finished difference Result 31658 states and 159005 transitions. [2021-06-05 03:47:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:07,885 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 03:47:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:07,980 INFO L225 Difference]: With dead ends: 31658 [2021-06-05 03:47:07,980 INFO L226 Difference]: Without dead ends: 30775 [2021-06-05 03:47:07,980 INFO L777 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 03:47:09,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30775 states. [2021-06-05 03:47:09,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30775 to 13313. [2021-06-05 03:47:09,298 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 03:47:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70768 transitions. [2021-06-05 03:47:09,342 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70768 transitions. Word has length 33 [2021-06-05 03:47:09,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:09,342 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70768 transitions. [2021-06-05 03:47:09,342 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 03:47:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70768 transitions. [2021-06-05 03:47:09,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:09,368 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:09,368 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:09,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-05 03:47:09,368 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 03:47:09,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:09,368 INFO L82 PathProgramCache]: Analyzing trace with hash 859738619, now seen corresponding path program 167 times [2021-06-05 03:47:09,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:09,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496308870] [2021-06-05 03:47:09,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:09,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:09,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496308870] [2021-06-05 03:47:09,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496308870] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:09,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:09,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:09,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698965057] [2021-06-05 03:47:09,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:09,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:09,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:09,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:09,506 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 03:47:09,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:09,747 INFO L93 Difference]: Finished difference Result 32002 states and 160614 transitions. [2021-06-05 03:47:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:09,747 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 03:47:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:10,162 INFO L225 Difference]: With dead ends: 32002 [2021-06-05 03:47:10,162 INFO L226 Difference]: Without dead ends: 31108 [2021-06-05 03:47:10,162 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:10,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31108 states. [2021-06-05 03:47:11,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31108 to 13503. [2021-06-05 03:47:11,220 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 03:47:11,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71533 transitions. [2021-06-05 03:47:11,265 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71533 transitions. Word has length 33 [2021-06-05 03:47:11,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:11,265 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71533 transitions. [2021-06-05 03:47:11,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71533 transitions. [2021-06-05 03:47:11,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:11,292 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:11,292 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:11,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-05 03:47:11,292 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 03:47:11,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:11,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1173274023, now seen corresponding path program 168 times [2021-06-05 03:47:11,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:11,292 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100603977] [2021-06-05 03:47:11,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:11,428 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 03:47:11,428 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:11,428 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100603977] [2021-06-05 03:47:11,428 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100603977] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:11,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:11,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:11,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323052986] [2021-06-05 03:47:11,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:11,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:11,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:11,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:11,429 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 03:47:11,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:11,931 INFO L93 Difference]: Finished difference Result 31871 states and 159841 transitions. [2021-06-05 03:47:11,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:11,931 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:12,032 INFO L225 Difference]: With dead ends: 31871 [2021-06-05 03:47:12,032 INFO L226 Difference]: Without dead ends: 30780 [2021-06-05 03:47:12,032 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:12,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30780 states. [2021-06-05 03:47:13,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30780 to 13175. [2021-06-05 03:47:13,087 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 03:47:13,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70229 transitions. [2021-06-05 03:47:13,132 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70229 transitions. Word has length 33 [2021-06-05 03:47:13,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:13,132 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70229 transitions. [2021-06-05 03:47:13,132 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 03:47:13,132 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70229 transitions. [2021-06-05 03:47:13,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:13,159 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:13,159 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:13,159 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-05 03:47:13,159 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 03:47:13,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:13,160 INFO L82 PathProgramCache]: Analyzing trace with hash 2039190461, now seen corresponding path program 169 times [2021-06-05 03:47:13,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:13,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870699747] [2021-06-05 03:47:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:13,443 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 03:47:13,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:13,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870699747] [2021-06-05 03:47:13,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870699747] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:13,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:13,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:13,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395180858] [2021-06-05 03:47:13,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:13,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:13,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:13,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:13,444 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 03:47:13,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:13,698 INFO L93 Difference]: Finished difference Result 30788 states and 155165 transitions. [2021-06-05 03:47:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:13,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:13,799 INFO L225 Difference]: With dead ends: 30788 [2021-06-05 03:47:13,800 INFO L226 Difference]: Without dead ends: 30029 [2021-06-05 03:47:13,800 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 310.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:14,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30029 states. [2021-06-05 03:47:15,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30029 to 13379. [2021-06-05 03:47:15,050 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 03:47:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71209 transitions. [2021-06-05 03:47:15,096 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71209 transitions. Word has length 33 [2021-06-05 03:47:15,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:15,096 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71209 transitions. [2021-06-05 03:47:15,096 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 03:47:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71209 transitions. [2021-06-05 03:47:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:15,124 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:15,124 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:15,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-05 03:47:15,124 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 03:47:15,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:15,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1192393499, now seen corresponding path program 170 times [2021-06-05 03:47:15,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:15,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682084123] [2021-06-05 03:47:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:15,264 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 03:47:15,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:15,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682084123] [2021-06-05 03:47:15,264 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682084123] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:15,264 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:15,264 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:15,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146188167] [2021-06-05 03:47:15,264 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:15,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:15,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:15,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:15,265 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 03:47:15,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:15,511 INFO L93 Difference]: Finished difference Result 30780 states and 155017 transitions. [2021-06-05 03:47:15,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:15,511 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 03:47:15,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:15,609 INFO L225 Difference]: With dead ends: 30780 [2021-06-05 03:47:15,610 INFO L226 Difference]: Without dead ends: 29909 [2021-06-05 03:47:15,610 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:16,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29909 states. [2021-06-05 03:47:16,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29909 to 13259. [2021-06-05 03:47:16,809 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 03:47:16,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70661 transitions. [2021-06-05 03:47:16,852 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70661 transitions. Word has length 33 [2021-06-05 03:47:16,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:16,853 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70661 transitions. [2021-06-05 03:47:16,853 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 03:47:16,853 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70661 transitions. [2021-06-05 03:47:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:16,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:16,878 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:16,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-05 03:47:16,878 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 03:47:16,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:16,878 INFO L82 PathProgramCache]: Analyzing trace with hash 16128923, now seen corresponding path program 171 times [2021-06-05 03:47:16,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:16,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785703924] [2021-06-05 03:47:16,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:17,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:17,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:17,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785703924] [2021-06-05 03:47:17,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785703924] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:17,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:17,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:17,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348551322] [2021-06-05 03:47:17,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:17,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:17,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:17,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:17,011 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 03:47:17,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:17,249 INFO L93 Difference]: Finished difference Result 30764 states and 155009 transitions. [2021-06-05 03:47:17,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:17,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:17,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:17,350 INFO L225 Difference]: With dead ends: 30764 [2021-06-05 03:47:17,350 INFO L226 Difference]: Without dead ends: 30005 [2021-06-05 03:47:17,350 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 160.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:18,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30005 states. [2021-06-05 03:47:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30005 to 13371. [2021-06-05 03:47:18,680 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 03:47:18,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71125 transitions. [2021-06-05 03:47:18,725 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71125 transitions. Word has length 33 [2021-06-05 03:47:18,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:18,725 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71125 transitions. [2021-06-05 03:47:18,725 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 03:47:18,725 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71125 transitions. [2021-06-05 03:47:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:18,750 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:18,750 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:18,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-05 03:47:18,751 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 03:47:18,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:18,751 INFO L82 PathProgramCache]: Analyzing trace with hash -779897957, now seen corresponding path program 172 times [2021-06-05 03:47:18,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:18,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772056372] [2021-06-05 03:47:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:18,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:18,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:18,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772056372] [2021-06-05 03:47:18,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772056372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:18,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:18,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:18,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119428855] [2021-06-05 03:47:18,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:18,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:18,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:18,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:18,886 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 03:47:19,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:19,105 INFO L93 Difference]: Finished difference Result 30740 states and 154805 transitions. [2021-06-05 03:47:19,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:19,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:19,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:19,195 INFO L225 Difference]: With dead ends: 30740 [2021-06-05 03:47:19,195 INFO L226 Difference]: Without dead ends: 29893 [2021-06-05 03:47:19,196 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:20,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29893 states. [2021-06-05 03:47:20,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29893 to 13259. [2021-06-05 03:47:20,457 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 03:47:20,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70605 transitions. [2021-06-05 03:47:20,501 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70605 transitions. Word has length 33 [2021-06-05 03:47:20,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:20,501 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70605 transitions. [2021-06-05 03:47:20,501 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 03:47:20,501 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70605 transitions. [2021-06-05 03:47:20,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:20,527 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:20,527 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:20,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-05 03:47:20,527 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 03:47:20,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:20,528 INFO L82 PathProgramCache]: Analyzing trace with hash -840619143, now seen corresponding path program 173 times [2021-06-05 03:47:20,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:20,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046035438] [2021-06-05 03:47:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:20,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:20,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:20,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046035438] [2021-06-05 03:47:20,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046035438] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:20,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:20,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:20,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498679110] [2021-06-05 03:47:20,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:20,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:20,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:20,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:20,662 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 03:47:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:20,906 INFO L93 Difference]: Finished difference Result 30748 states and 154897 transitions. [2021-06-05 03:47:20,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:20,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:20,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:20,994 INFO L225 Difference]: With dead ends: 30748 [2021-06-05 03:47:20,994 INFO L226 Difference]: Without dead ends: 29997 [2021-06-05 03:47:20,994 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:22,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29997 states. [2021-06-05 03:47:22,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29997 to 13371. [2021-06-05 03:47:22,305 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 03:47:22,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71069 transitions. [2021-06-05 03:47:22,348 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71069 transitions. Word has length 33 [2021-06-05 03:47:22,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:22,348 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71069 transitions. [2021-06-05 03:47:22,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:22,348 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71069 transitions. [2021-06-05 03:47:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:22,373 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:22,373 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:22,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-05 03:47:22,373 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 03:47:22,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:22,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1321521189, now seen corresponding path program 174 times [2021-06-05 03:47:22,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:22,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043313595] [2021-06-05 03:47:22,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:22,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:22,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043313595] [2021-06-05 03:47:22,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043313595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:22,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:22,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:22,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796390647] [2021-06-05 03:47:22,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:22,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:22,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:22,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:22,514 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 03:47:22,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:22,919 INFO L93 Difference]: Finished difference Result 30732 states and 154721 transitions. [2021-06-05 03:47:22,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:22,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:22,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:23,009 INFO L225 Difference]: With dead ends: 30732 [2021-06-05 03:47:23,009 INFO L226 Difference]: Without dead ends: 29829 [2021-06-05 03:47:23,009 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:23,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29829 states. [2021-06-05 03:47:24,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29829 to 13203. [2021-06-05 03:47:24,036 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 03:47:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 70373 transitions. [2021-06-05 03:47:24,080 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 70373 transitions. Word has length 33 [2021-06-05 03:47:24,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:24,080 INFO L482 AbstractCegarLoop]: Abstraction has 13203 states and 70373 transitions. [2021-06-05 03:47:24,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:24,080 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 70373 transitions. [2021-06-05 03:47:24,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:24,107 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:24,107 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:24,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-05 03:47:24,107 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 03:47:24,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:24,107 INFO L82 PathProgramCache]: Analyzing trace with hash -275906499, now seen corresponding path program 175 times [2021-06-05 03:47:24,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:24,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716380241] [2021-06-05 03:47:24,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:24,243 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 03:47:24,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:24,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716380241] [2021-06-05 03:47:24,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716380241] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:24,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:24,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:24,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508260544] [2021-06-05 03:47:24,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:24,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:24,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:24,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:24,244 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 03:47:24,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:24,590 INFO L93 Difference]: Finished difference Result 30840 states and 155349 transitions. [2021-06-05 03:47:24,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:24,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:24,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:24,685 INFO L225 Difference]: With dead ends: 30840 [2021-06-05 03:47:24,685 INFO L226 Difference]: Without dead ends: 30081 [2021-06-05 03:47:24,685 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:25,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30081 states. [2021-06-05 03:47:25,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30081 to 13383. [2021-06-05 03:47:25,761 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 03:47:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 71201 transitions. [2021-06-05 03:47:26,024 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 71201 transitions. Word has length 33 [2021-06-05 03:47:26,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:26,025 INFO L482 AbstractCegarLoop]: Abstraction has 13383 states and 71201 transitions. [2021-06-05 03:47:26,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:26,025 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 71201 transitions. [2021-06-05 03:47:26,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:26,054 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:26,054 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:26,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-05 03:47:26,054 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 03:47:26,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:26,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1122703461, now seen corresponding path program 176 times [2021-06-05 03:47:26,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:26,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317876210] [2021-06-05 03:47:26,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:26,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:26,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:26,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317876210] [2021-06-05 03:47:26,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317876210] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:26,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:26,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:26,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086308342] [2021-06-05 03:47:26,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:26,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:26,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:26,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:26,215 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 03:47:26,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:26,503 INFO L93 Difference]: Finished difference Result 30832 states and 155201 transitions. [2021-06-05 03:47:26,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:26,503 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 03:47:26,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:26,602 INFO L225 Difference]: With dead ends: 30832 [2021-06-05 03:47:26,603 INFO L226 Difference]: Without dead ends: 29961 [2021-06-05 03:47:26,603 INFO L777 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 03:47:27,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29961 states. [2021-06-05 03:47:27,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29961 to 13263. [2021-06-05 03:47:27,849 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 03:47:27,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13263 states to 13263 states and 70649 transitions. [2021-06-05 03:47:27,895 INFO L78 Accepts]: Start accepts. Automaton has 13263 states and 70649 transitions. Word has length 33 [2021-06-05 03:47:27,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:27,895 INFO L482 AbstractCegarLoop]: Abstraction has 13263 states and 70649 transitions. [2021-06-05 03:47:27,895 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 03:47:27,895 INFO L276 IsEmpty]: Start isEmpty. Operand 13263 states and 70649 transitions. [2021-06-05 03:47:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:27,923 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:27,923 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:27,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-05 03:47:27,923 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 03:47:27,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:27,924 INFO L82 PathProgramCache]: Analyzing trace with hash 838617149, now seen corresponding path program 177 times [2021-06-05 03:47:27,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:27,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14747420] [2021-06-05 03:47:27,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:28,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:28,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14747420] [2021-06-05 03:47:28,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14747420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:28,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:28,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:28,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444830904] [2021-06-05 03:47:28,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:28,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:28,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:28,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:28,061 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 03:47:28,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:28,299 INFO L93 Difference]: Finished difference Result 30856 states and 155345 transitions. [2021-06-05 03:47:28,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:28,299 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 03:47:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:28,388 INFO L225 Difference]: With dead ends: 30856 [2021-06-05 03:47:28,388 INFO L226 Difference]: Without dead ends: 30097 [2021-06-05 03:47:28,389 INFO L777 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 03:47:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30097 states. [2021-06-05 03:47:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30097 to 13387. [2021-06-05 03:47:29,603 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 03:47:29,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71153 transitions. [2021-06-05 03:47:29,647 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71153 transitions. Word has length 33 [2021-06-05 03:47:29,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:29,647 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71153 transitions. [2021-06-05 03:47:29,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:29,647 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71153 transitions. [2021-06-05 03:47:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:29,673 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:29,673 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:29,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-05 03:47:29,673 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 03:47:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash -697982915, now seen corresponding path program 178 times [2021-06-05 03:47:29,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:29,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475338383] [2021-06-05 03:47:29,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:29,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:29,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:29,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475338383] [2021-06-05 03:47:29,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475338383] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:29,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:29,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:29,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106380418] [2021-06-05 03:47:29,808 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:29,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:29,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:29,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:29,808 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 03:47:30,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:30,045 INFO L93 Difference]: Finished difference Result 30860 states and 155233 transitions. [2021-06-05 03:47:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:30,045 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:30,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:30,139 INFO L225 Difference]: With dead ends: 30860 [2021-06-05 03:47:30,139 INFO L226 Difference]: Without dead ends: 29973 [2021-06-05 03:47:30,139 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:31,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29973 states. [2021-06-05 03:47:31,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29973 to 13263. [2021-06-05 03:47:31,350 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 03:47:31,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13263 states to 13263 states and 70589 transitions. [2021-06-05 03:47:31,392 INFO L78 Accepts]: Start accepts. Automaton has 13263 states and 70589 transitions. Word has length 33 [2021-06-05 03:47:31,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:31,392 INFO L482 AbstractCegarLoop]: Abstraction has 13263 states and 70589 transitions. [2021-06-05 03:47:31,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:31,393 INFO L276 IsEmpty]: Start isEmpty. Operand 13263 states and 70589 transitions. [2021-06-05 03:47:31,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:31,417 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:31,417 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:31,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-05 03:47:31,417 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 03:47:31,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:31,418 INFO L82 PathProgramCache]: Analyzing trace with hash -18130917, now seen corresponding path program 179 times [2021-06-05 03:47:31,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:31,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593202385] [2021-06-05 03:47:31,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:31,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:31,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:31,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593202385] [2021-06-05 03:47:31,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593202385] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:31,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:31,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:31,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683009385] [2021-06-05 03:47:31,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:31,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:31,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:31,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:31,556 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 03:47:31,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:31,784 INFO L93 Difference]: Finished difference Result 30836 states and 155213 transitions. [2021-06-05 03:47:31,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:31,785 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:31,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:31,877 INFO L225 Difference]: With dead ends: 30836 [2021-06-05 03:47:31,877 INFO L226 Difference]: Without dead ends: 30085 [2021-06-05 03:47:31,877 INFO L777 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 03:47:32,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30085 states. [2021-06-05 03:47:33,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30085 to 13383. [2021-06-05 03:47:33,142 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 03:47:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 71081 transitions. [2021-06-05 03:47:33,186 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 71081 transitions. Word has length 33 [2021-06-05 03:47:33,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:33,186 INFO L482 AbstractCegarLoop]: Abstraction has 13383 states and 71081 transitions. [2021-06-05 03:47:33,186 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 03:47:33,187 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 71081 transitions. [2021-06-05 03:47:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:33,213 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:33,213 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:33,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-05 03:47:33,213 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 03:47:33,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:33,213 INFO L82 PathProgramCache]: Analyzing trace with hash -2021769603, now seen corresponding path program 180 times [2021-06-05 03:47:33,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:33,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616835831] [2021-06-05 03:47:33,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:33,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:33,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616835831] [2021-06-05 03:47:33,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616835831] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:33,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:33,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:33,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306251487] [2021-06-05 03:47:33,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:33,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:33,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:33,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:33,350 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 03:47:33,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:33,814 INFO L93 Difference]: Finished difference Result 30848 states and 155133 transitions. [2021-06-05 03:47:33,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:33,814 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:33,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:33,919 INFO L225 Difference]: With dead ends: 30848 [2021-06-05 03:47:33,920 INFO L226 Difference]: Without dead ends: 29905 [2021-06-05 03:47:33,920 INFO L777 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 03:47:34,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29905 states. [2021-06-05 03:47:34,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29905 to 13203. [2021-06-05 03:47:34,981 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 03:47:35,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 70345 transitions. [2021-06-05 03:47:35,031 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 70345 transitions. Word has length 33 [2021-06-05 03:47:35,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:35,031 INFO L482 AbstractCegarLoop]: Abstraction has 13203 states and 70345 transitions. [2021-06-05 03:47:35,031 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 03:47:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 70345 transitions. [2021-06-05 03:47:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:35,059 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:35,060 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:35,060 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-05 03:47:35,060 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 03:47:35,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:35,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1022922907, now seen corresponding path program 181 times [2021-06-05 03:47:35,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:35,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672426635] [2021-06-05 03:47:35,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:35,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:35,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:35,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672426635] [2021-06-05 03:47:35,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672426635] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:35,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:35,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:35,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853958662] [2021-06-05 03:47:35,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:35,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:35,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:35,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:35,196 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 03:47:35,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:35,600 INFO L93 Difference]: Finished difference Result 30780 states and 155065 transitions. [2021-06-05 03:47:35,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:35,601 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:35,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:35,696 INFO L225 Difference]: With dead ends: 30780 [2021-06-05 03:47:35,696 INFO L226 Difference]: Without dead ends: 30021 [2021-06-05 03:47:35,696 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30021 states. [2021-06-05 03:47:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30021 to 13371. [2021-06-05 03:47:36,766 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 03:47:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71125 transitions. [2021-06-05 03:47:37,046 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71125 transitions. Word has length 33 [2021-06-05 03:47:37,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:37,046 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71125 transitions. [2021-06-05 03:47:37,046 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 03:47:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71125 transitions. [2021-06-05 03:47:37,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:37,083 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:37,083 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:37,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-05 03:47:37,083 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 03:47:37,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:37,083 INFO L82 PathProgramCache]: Analyzing trace with hash 226896027, now seen corresponding path program 182 times [2021-06-05 03:47:37,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:37,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727751360] [2021-06-05 03:47:37,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:37,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:37,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727751360] [2021-06-05 03:47:37,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727751360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:37,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:37,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:37,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561707327] [2021-06-05 03:47:37,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:37,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:37,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:37,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:37,232 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 03:47:37,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:37,504 INFO L93 Difference]: Finished difference Result 30756 states and 154861 transitions. [2021-06-05 03:47:37,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:37,504 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 03:47:37,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:37,600 INFO L225 Difference]: With dead ends: 30756 [2021-06-05 03:47:37,600 INFO L226 Difference]: Without dead ends: 29909 [2021-06-05 03:47:37,600 INFO L777 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 03:47:38,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29909 states. [2021-06-05 03:47:38,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29909 to 13259. [2021-06-05 03:47:38,821 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 03:47:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70605 transitions. [2021-06-05 03:47:38,864 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70605 transitions. Word has length 33 [2021-06-05 03:47:38,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:38,864 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70605 transitions. [2021-06-05 03:47:38,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:38,864 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70605 transitions. [2021-06-05 03:47:38,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:38,890 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:38,890 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:38,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-05 03:47:38,890 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 03:47:38,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:38,890 INFO L82 PathProgramCache]: Analyzing trace with hash -20021507, now seen corresponding path program 183 times [2021-06-05 03:47:38,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:38,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127031684] [2021-06-05 03:47:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:39,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:39,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:39,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127031684] [2021-06-05 03:47:39,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127031684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:39,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:39,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:39,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491045319] [2021-06-05 03:47:39,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:39,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:39,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:39,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:39,035 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 03:47:39,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:39,257 INFO L93 Difference]: Finished difference Result 30820 states and 155165 transitions. [2021-06-05 03:47:39,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:39,257 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 03:47:39,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:39,348 INFO L225 Difference]: With dead ends: 30820 [2021-06-05 03:47:39,348 INFO L226 Difference]: Without dead ends: 30061 [2021-06-05 03:47:39,348 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:40,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30061 states. [2021-06-05 03:47:40,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30061 to 13383. [2021-06-05 03:47:40,539 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 03:47:40,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13383 states to 13383 states and 71109 transitions. [2021-06-05 03:47:40,583 INFO L78 Accepts]: Start accepts. Automaton has 13383 states and 71109 transitions. Word has length 33 [2021-06-05 03:47:40,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:40,583 INFO L482 AbstractCegarLoop]: Abstraction has 13383 states and 71109 transitions. [2021-06-05 03:47:40,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:40,583 INFO L276 IsEmpty]: Start isEmpty. Operand 13383 states and 71109 transitions. [2021-06-05 03:47:40,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:40,609 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:40,609 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:40,609 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-05 03:47:40,609 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 03:47:40,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:40,610 INFO L82 PathProgramCache]: Analyzing trace with hash 760064155, now seen corresponding path program 184 times [2021-06-05 03:47:40,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:40,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214644102] [2021-06-05 03:47:40,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:40,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:40,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214644102] [2021-06-05 03:47:40,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214644102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:40,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:40,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:40,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104272678] [2021-06-05 03:47:40,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:40,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:40,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:40,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:40,749 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 03:47:40,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:40,971 INFO L93 Difference]: Finished difference Result 30824 states and 155053 transitions. [2021-06-05 03:47:40,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:40,972 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 03:47:40,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:41,068 INFO L225 Difference]: With dead ends: 30824 [2021-06-05 03:47:41,068 INFO L226 Difference]: Without dead ends: 29937 [2021-06-05 03:47:41,068 INFO L777 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 03:47:42,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29937 states. [2021-06-05 03:47:42,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29937 to 13259. [2021-06-05 03:47:42,291 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 03:47:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70549 transitions. [2021-06-05 03:47:42,336 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70549 transitions. Word has length 33 [2021-06-05 03:47:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:42,336 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70549 transitions. [2021-06-05 03:47:42,336 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 03:47:42,336 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70549 transitions. [2021-06-05 03:47:42,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:42,362 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:42,362 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:42,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-05 03:47:42,362 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 03:47:42,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:42,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1022984347, now seen corresponding path program 185 times [2021-06-05 03:47:42,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:42,363 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166934315] [2021-06-05 03:47:42,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:42,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:42,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:42,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166934315] [2021-06-05 03:47:42,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166934315] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:42,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:42,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:42,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306062133] [2021-06-05 03:47:42,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:42,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:42,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:42,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:42,519 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 03:47:42,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:42,754 INFO L93 Difference]: Finished difference Result 30760 states and 154873 transitions. [2021-06-05 03:47:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:42,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:42,854 INFO L225 Difference]: With dead ends: 30760 [2021-06-05 03:47:42,854 INFO L226 Difference]: Without dead ends: 30025 [2021-06-05 03:47:42,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:43,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30025 states. [2021-06-05 03:47:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30025 to 13371. [2021-06-05 03:47:44,106 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 03:47:44,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71013 transitions. [2021-06-05 03:47:44,150 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71013 transitions. Word has length 33 [2021-06-05 03:47:44,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:44,151 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71013 transitions. [2021-06-05 03:47:44,151 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:44,151 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71013 transitions. [2021-06-05 03:47:44,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:44,178 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:44,178 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:44,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-05 03:47:44,178 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 03:47:44,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:44,179 INFO L82 PathProgramCache]: Analyzing trace with hash -287596675, now seen corresponding path program 186 times [2021-06-05 03:47:44,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:44,179 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876067855] [2021-06-05 03:47:44,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:44,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:44,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876067855] [2021-06-05 03:47:44,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876067855] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:44,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:44,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:44,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177116538] [2021-06-05 03:47:44,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:44,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:44,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:44,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:44,327 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 03:47:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:44,762 INFO L93 Difference]: Finished difference Result 30788 states and 154865 transitions. [2021-06-05 03:47:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:44,762 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 03:47:44,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:44,871 INFO L225 Difference]: With dead ends: 30788 [2021-06-05 03:47:44,871 INFO L226 Difference]: Without dead ends: 29857 [2021-06-05 03:47:44,871 INFO L777 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 03:47:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29857 states. [2021-06-05 03:47:45,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29857 to 13203. [2021-06-05 03:47:45,907 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 03:47:45,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13203 states to 13203 states and 70317 transitions. [2021-06-05 03:47:45,951 INFO L78 Accepts]: Start accepts. Automaton has 13203 states and 70317 transitions. Word has length 33 [2021-06-05 03:47:45,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:45,951 INFO L482 AbstractCegarLoop]: Abstraction has 13203 states and 70317 transitions. [2021-06-05 03:47:45,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:45,951 INFO L276 IsEmpty]: Start isEmpty. Operand 13203 states and 70317 transitions. [2021-06-05 03:47:45,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:45,976 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:45,976 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:45,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-05 03:47:45,976 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 03:47:45,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:45,977 INFO L82 PathProgramCache]: Analyzing trace with hash -806901511, now seen corresponding path program 187 times [2021-06-05 03:47:45,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:45,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095198076] [2021-06-05 03:47:45,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:46,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:46,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:46,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095198076] [2021-06-05 03:47:46,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095198076] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:46,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:46,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:46,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794111157] [2021-06-05 03:47:46,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:46,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:46,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:46,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:46,112 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 03:47:46,413 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2021-06-05 03:47:46,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:46,522 INFO L93 Difference]: Finished difference Result 30752 states and 154937 transitions. [2021-06-05 03:47:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:46,523 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:46,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:46,621 INFO L225 Difference]: With dead ends: 30752 [2021-06-05 03:47:46,621 INFO L226 Difference]: Without dead ends: 30001 [2021-06-05 03:47:46,621 INFO L777 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 03:47:47,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30001 states. [2021-06-05 03:47:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30001 to 13371. [2021-06-05 03:47:47,690 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 03:47:47,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 71097 transitions. [2021-06-05 03:47:47,986 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 71097 transitions. Word has length 33 [2021-06-05 03:47:47,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:47,986 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 71097 transitions. [2021-06-05 03:47:47,987 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 03:47:47,987 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 71097 transitions. [2021-06-05 03:47:48,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:48,016 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:48,016 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:48,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-05 03:47:48,016 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 03:47:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:48,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1287803557, now seen corresponding path program 188 times [2021-06-05 03:47:48,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:48,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11977713] [2021-06-05 03:47:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:48,191 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 03:47:48,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:48,191 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11977713] [2021-06-05 03:47:48,191 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11977713] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:48,191 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:48,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:48,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209915754] [2021-06-05 03:47:48,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:48,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:48,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:48,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:48,192 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 03:47:48,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:48,472 INFO L93 Difference]: Finished difference Result 30736 states and 154761 transitions. [2021-06-05 03:47:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:48,472 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 03:47:48,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:48,583 INFO L225 Difference]: With dead ends: 30736 [2021-06-05 03:47:48,583 INFO L226 Difference]: Without dead ends: 29889 [2021-06-05 03:47:48,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:49,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29889 states. [2021-06-05 03:47:49,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29889 to 13259. [2021-06-05 03:47:49,825 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 03:47:49,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70577 transitions. [2021-06-05 03:47:49,871 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70577 transitions. Word has length 33 [2021-06-05 03:47:49,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:49,871 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70577 transitions. [2021-06-05 03:47:49,871 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:49,871 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70577 transitions. [2021-06-05 03:47:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:49,898 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:49,898 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:49,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-05 03:47:49,898 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 03:47:49,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:49,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1849845925, now seen corresponding path program 189 times [2021-06-05 03:47:49,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:49,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440215226] [2021-06-05 03:47:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:50,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:50,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440215226] [2021-06-05 03:47:50,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440215226] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:50,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:50,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:50,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546586722] [2021-06-05 03:47:50,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:50,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:50,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:50,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:50,034 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 03:47:50,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:50,263 INFO L93 Difference]: Finished difference Result 30788 states and 155021 transitions. [2021-06-05 03:47:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:50,263 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:50,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:50,356 INFO L225 Difference]: With dead ends: 30788 [2021-06-05 03:47:50,356 INFO L226 Difference]: Without dead ends: 30037 [2021-06-05 03:47:50,356 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:51,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30037 states. [2021-06-05 03:47:51,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30037 to 13379. [2021-06-05 03:47:51,567 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 03:47:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13379 states to 13379 states and 71069 transitions. [2021-06-05 03:47:51,611 INFO L78 Accepts]: Start accepts. Automaton has 13379 states and 71069 transitions. Word has length 33 [2021-06-05 03:47:51,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:51,611 INFO L482 AbstractCegarLoop]: Abstraction has 13379 states and 71069 transitions. [2021-06-05 03:47:51,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:51,611 INFO L276 IsEmpty]: Start isEmpty. Operand 13379 states and 71069 transitions. [2021-06-05 03:47:51,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:51,638 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:51,638 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:51,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-05 03:47:51,638 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 03:47:51,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:51,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1536798885, now seen corresponding path program 190 times [2021-06-05 03:47:51,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:51,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001666867] [2021-06-05 03:47:51,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:51,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:51,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:51,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001666867] [2021-06-05 03:47:51,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001666867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:51,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:51,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:51,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929394191] [2021-06-05 03:47:51,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:51,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:51,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:51,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:51,775 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 03:47:52,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:52,025 INFO L93 Difference]: Finished difference Result 30800 states and 154941 transitions. [2021-06-05 03:47:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:52,025 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:52,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:52,119 INFO L225 Difference]: With dead ends: 30800 [2021-06-05 03:47:52,119 INFO L226 Difference]: Without dead ends: 29917 [2021-06-05 03:47:52,119 INFO L777 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 03:47:53,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29917 states. [2021-06-05 03:47:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29917 to 13259. [2021-06-05 03:47:53,338 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 03:47:53,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13259 states to 13259 states and 70521 transitions. [2021-06-05 03:47:53,380 INFO L78 Accepts]: Start accepts. Automaton has 13259 states and 70521 transitions. Word has length 33 [2021-06-05 03:47:53,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:53,380 INFO L482 AbstractCegarLoop]: Abstraction has 13259 states and 70521 transitions. [2021-06-05 03:47:53,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:53,380 INFO L276 IsEmpty]: Start isEmpty. Operand 13259 states and 70521 transitions. [2021-06-05 03:47:53,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:53,406 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:53,406 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:53,406 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-05 03:47:53,406 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 03:47:53,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:53,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1655735101, now seen corresponding path program 191 times [2021-06-05 03:47:53,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:53,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823963454] [2021-06-05 03:47:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:53,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:53,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823963454] [2021-06-05 03:47:53,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823963454] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:53,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:53,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:53,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888924432] [2021-06-05 03:47:53,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:53,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:53,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:53,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:53,583 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 03:47:53,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:53,852 INFO L93 Difference]: Finished difference Result 30748 states and 154801 transitions. [2021-06-05 03:47:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:53,852 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 03:47:53,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:53,945 INFO L225 Difference]: With dead ends: 30748 [2021-06-05 03:47:53,945 INFO L226 Difference]: Without dead ends: 30013 [2021-06-05 03:47:53,945 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:54,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30013 states. [2021-06-05 03:47:55,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30013 to 13371. [2021-06-05 03:47:55,242 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 03:47:55,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13371 states to 13371 states and 70985 transitions. [2021-06-05 03:47:55,285 INFO L78 Accepts]: Start accepts. Automaton has 13371 states and 70985 transitions. Word has length 33 [2021-06-05 03:47:55,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:55,285 INFO L482 AbstractCegarLoop]: Abstraction has 13371 states and 70985 transitions. [2021-06-05 03:47:55,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:55,285 INFO L276 IsEmpty]: Start isEmpty. Operand 13371 states and 70985 transitions. [2021-06-05 03:47:55,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:55,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:55,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:55,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-05 03:47:55,311 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 03:47:55,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:55,311 INFO L82 PathProgramCache]: Analyzing trace with hash -317570917, now seen corresponding path program 192 times [2021-06-05 03:47:55,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:55,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48148982] [2021-06-05 03:47:55,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:55,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:55,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48148982] [2021-06-05 03:47:55,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48148982] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:55,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:55,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:55,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938746966] [2021-06-05 03:47:55,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:55,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:55,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:55,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:55,464 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 03:47:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:55,895 INFO L93 Difference]: Finished difference Result 30776 states and 154793 transitions. [2021-06-05 03:47:55,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:55,895 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:55,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:56,010 INFO L225 Difference]: With dead ends: 30776 [2021-06-05 03:47:56,010 INFO L226 Difference]: Without dead ends: 29817 [2021-06-05 03:47:56,010 INFO L777 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 03:47:56,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29817 states. [2021-06-05 03:47:57,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29817 to 13175. [2021-06-05 03:47:57,024 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 03:47:57,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70215 transitions. [2021-06-05 03:47:57,069 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70215 transitions. Word has length 33 [2021-06-05 03:47:57,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:57,070 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70215 transitions. [2021-06-05 03:47:57,070 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 03:47:57,070 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70215 transitions. [2021-06-05 03:47:57,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:57,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:57,096 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:57,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-05 03:47:57,096 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 03:47:57,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:57,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1430152825, now seen corresponding path program 193 times [2021-06-05 03:47:57,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:57,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263816035] [2021-06-05 03:47:57,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:57,243 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 03:47:57,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:57,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263816035] [2021-06-05 03:47:57,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263816035] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:57,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:57,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:57,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481971277] [2021-06-05 03:47:57,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:57,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:57,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:57,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:57,244 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 03:47:57,523 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2021-06-05 03:47:57,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:57,624 INFO L93 Difference]: Finished difference Result 31530 states and 158761 transitions. [2021-06-05 03:47:57,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:57,625 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 03:47:57,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:57,714 INFO L225 Difference]: With dead ends: 31530 [2021-06-05 03:47:57,714 INFO L226 Difference]: Without dead ends: 30771 [2021-06-05 03:47:57,714 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 337.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:47:58,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30771 states. [2021-06-05 03:47:58,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30771 to 13419. [2021-06-05 03:47:58,738 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 03:47:59,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71439 transitions. [2021-06-05 03:47:59,030 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71439 transitions. Word has length 33 [2021-06-05 03:47:59,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:59,030 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71439 transitions. [2021-06-05 03:47:59,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:59,030 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71439 transitions. [2021-06-05 03:47:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:47:59,060 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:59,060 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:59,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-05 03:47:59,061 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 03:47:59,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:59,061 INFO L82 PathProgramCache]: Analyzing trace with hash 634125945, now seen corresponding path program 194 times [2021-06-05 03:47:59,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:59,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055961933] [2021-06-05 03:47:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:59,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:59,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:59,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055961933] [2021-06-05 03:47:59,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055961933] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:59,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:59,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:47:59,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640704444] [2021-06-05 03:47:59,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:47:59,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:59,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:47:59,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:59,205 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 03:47:59,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:59,430 INFO L93 Difference]: Finished difference Result 31506 states and 158557 transitions. [2021-06-05 03:47:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:47:59,430 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:47:59,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:59,520 INFO L225 Difference]: With dead ends: 31506 [2021-06-05 03:47:59,520 INFO L226 Difference]: Without dead ends: 30659 [2021-06-05 03:47:59,520 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30659 states. [2021-06-05 03:48:00,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30659 to 13307. [2021-06-05 03:48:00,763 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 03:48:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70919 transitions. [2021-06-05 03:48:00,807 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70919 transitions. Word has length 33 [2021-06-05 03:48:00,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:00,807 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70919 transitions. [2021-06-05 03:48:00,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:00,807 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70919 transitions. [2021-06-05 03:48:00,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:00,833 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:00,833 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:00,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-05 03:48:00,833 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 03:48:00,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:00,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1004176859, now seen corresponding path program 195 times [2021-06-05 03:48:00,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:00,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371954559] [2021-06-05 03:48:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:00,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:00,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371954559] [2021-06-05 03:48:00,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371954559] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:00,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:00,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:00,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345886120] [2021-06-05 03:48:00,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:00,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:00,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:00,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:00,997 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 03:48:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:01,235 INFO L93 Difference]: Finished difference Result 31765 states and 159764 transitions. [2021-06-05 03:48:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:01,235 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 03:48:01,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:01,331 INFO L225 Difference]: With dead ends: 31765 [2021-06-05 03:48:01,332 INFO L226 Difference]: Without dead ends: 31006 [2021-06-05 03:48:01,332 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 190.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:02,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31006 states. [2021-06-05 03:48:02,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31006 to 13495. [2021-06-05 03:48:02,571 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 03:48:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71743 transitions. [2021-06-05 03:48:02,619 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71743 transitions. Word has length 33 [2021-06-05 03:48:02,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:02,619 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71743 transitions. [2021-06-05 03:48:02,619 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 03:48:02,619 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71743 transitions. [2021-06-05 03:48:02,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:02,648 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:02,648 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:02,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-05 03:48:02,648 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 03:48:02,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:02,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1433878137, now seen corresponding path program 196 times [2021-06-05 03:48:02,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:02,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826540961] [2021-06-05 03:48:02,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:02,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:02,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826540961] [2021-06-05 03:48:02,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826540961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:02,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:02,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:02,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983516522] [2021-06-05 03:48:02,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:02,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:02,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:02,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:02,838 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 03:48:03,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:03,067 INFO L93 Difference]: Finished difference Result 31900 states and 160235 transitions. [2021-06-05 03:48:03,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:03,067 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 03:48:03,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:03,166 INFO L225 Difference]: With dead ends: 31900 [2021-06-05 03:48:03,166 INFO L226 Difference]: Without dead ends: 30818 [2021-06-05 03:48:03,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:04,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30818 states. [2021-06-05 03:48:04,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30818 to 13307. [2021-06-05 03:48:04,808 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 03:48:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70831 transitions. [2021-06-05 03:48:04,867 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70831 transitions. Word has length 33 [2021-06-05 03:48:04,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:04,867 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70831 transitions. [2021-06-05 03:48:04,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:04,867 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70831 transitions. [2021-06-05 03:48:04,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:04,903 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:04,903 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:04,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-05 03:48:04,903 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 03:48:04,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:04,904 INFO L82 PathProgramCache]: Analyzing trace with hash 2067084921, now seen corresponding path program 197 times [2021-06-05 03:48:04,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:04,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153081271] [2021-06-05 03:48:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:05,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:05,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153081271] [2021-06-05 03:48:05,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153081271] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:05,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:05,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:05,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566656159] [2021-06-05 03:48:05,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:05,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:05,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:05,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:05,076 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 03:48:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:05,302 INFO L93 Difference]: Finished difference Result 31705 states and 159440 transitions. [2021-06-05 03:48:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:05,302 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 03:48:05,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:05,396 INFO L225 Difference]: With dead ends: 31705 [2021-06-05 03:48:05,396 INFO L226 Difference]: Without dead ends: 30970 [2021-06-05 03:48:05,396 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:06,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30970 states. [2021-06-05 03:48:06,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30970 to 13483. [2021-06-05 03:48:06,675 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 03:48:06,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71615 transitions. [2021-06-05 03:48:06,721 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71615 transitions. Word has length 33 [2021-06-05 03:48:06,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:06,721 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71615 transitions. [2021-06-05 03:48:06,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:06,721 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71615 transitions. [2021-06-05 03:48:06,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:06,747 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:06,747 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:06,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-05 03:48:06,747 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 03:48:06,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:06,747 INFO L82 PathProgramCache]: Analyzing trace with hash 2142619227, now seen corresponding path program 198 times [2021-06-05 03:48:06,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:06,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716060641] [2021-06-05 03:48:06,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:06,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:06,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:06,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716060641] [2021-06-05 03:48:06,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716060641] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:06,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:06,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:06,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194590552] [2021-06-05 03:48:06,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:06,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:06,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:06,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:06,908 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 03:48:07,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:07,322 INFO L93 Difference]: Finished difference Result 31864 states and 160015 transitions. [2021-06-05 03:48:07,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:07,323 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:07,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:07,417 INFO L225 Difference]: With dead ends: 31864 [2021-06-05 03:48:07,418 INFO L226 Difference]: Without dead ends: 30706 [2021-06-05 03:48:07,418 INFO L777 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 03:48:08,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30706 states. [2021-06-05 03:48:08,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30706 to 13219. [2021-06-05 03:48:08,456 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 03:48:08,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70439 transitions. [2021-06-05 03:48:08,500 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70439 transitions. Word has length 33 [2021-06-05 03:48:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:08,500 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70439 transitions. [2021-06-05 03:48:08,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70439 transitions. [2021-06-05 03:48:08,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:08,525 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:08,525 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:08,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-05 03:48:08,525 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 03:48:08,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:08,526 INFO L82 PathProgramCache]: Analyzing trace with hash -715624101, now seen corresponding path program 199 times [2021-06-05 03:48:08,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:08,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261992693] [2021-06-05 03:48:08,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:08,745 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-06-05 03:48:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:08,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:08,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261992693] [2021-06-05 03:48:08,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261992693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:08,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:08,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:08,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092673617] [2021-06-05 03:48:08,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:08,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:08,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:08,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:08,799 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 03:48:09,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:09,021 INFO L93 Difference]: Finished difference Result 31239 states and 157318 transitions. [2021-06-05 03:48:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:09,022 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:09,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:09,113 INFO L225 Difference]: With dead ends: 31239 [2021-06-05 03:48:09,113 INFO L226 Difference]: Without dead ends: 30480 [2021-06-05 03:48:09,113 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 300.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:09,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30480 states. [2021-06-05 03:48:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30480 to 13387. [2021-06-05 03:48:10,168 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 03:48:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71219 transitions. [2021-06-05 03:48:10,399 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71219 transitions. Word has length 33 [2021-06-05 03:48:10,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:10,399 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71219 transitions. [2021-06-05 03:48:10,399 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 03:48:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71219 transitions. [2021-06-05 03:48:10,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:10,425 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:10,425 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:10,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-05 03:48:10,425 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 03:48:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:10,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1511650981, now seen corresponding path program 200 times [2021-06-05 03:48:10,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:10,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439580872] [2021-06-05 03:48:10,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:10,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:10,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:10,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439580872] [2021-06-05 03:48:10,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439580872] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:10,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:10,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:10,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667954013] [2021-06-05 03:48:10,561 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:10,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:10,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:10,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:10,561 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 03:48:10,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:10,803 INFO L93 Difference]: Finished difference Result 31215 states and 157114 transitions. [2021-06-05 03:48:10,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:10,803 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:10,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:10,890 INFO L225 Difference]: With dead ends: 31215 [2021-06-05 03:48:10,890 INFO L226 Difference]: Without dead ends: 30368 [2021-06-05 03:48:10,890 INFO L777 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 03:48:11,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30368 states. [2021-06-05 03:48:12,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30368 to 13275. [2021-06-05 03:48:12,087 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 03:48:12,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70699 transitions. [2021-06-05 03:48:12,130 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70699 transitions. Word has length 33 [2021-06-05 03:48:12,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:12,130 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70699 transitions. [2021-06-05 03:48:12,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:12,131 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70699 transitions. [2021-06-05 03:48:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:12,158 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:12,158 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:12,158 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-05 03:48:12,158 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 03:48:12,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:12,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1760135973, now seen corresponding path program 201 times [2021-06-05 03:48:12,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:12,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798269114] [2021-06-05 03:48:12,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:12,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:12,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798269114] [2021-06-05 03:48:12,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798269114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:12,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:12,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:12,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876046112] [2021-06-05 03:48:12,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:12,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:12,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:12,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:12,316 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 03:48:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:12,555 INFO L93 Difference]: Finished difference Result 31279 states and 157418 transitions. [2021-06-05 03:48:12,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:12,556 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 03:48:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:12,650 INFO L225 Difference]: With dead ends: 31279 [2021-06-05 03:48:12,650 INFO L226 Difference]: Without dead ends: 30520 [2021-06-05 03:48:12,650 INFO L777 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 03:48:13,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30520 states. [2021-06-05 03:48:13,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30520 to 13399. [2021-06-05 03:48:13,925 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 03:48:13,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13399 states to 13399 states and 71203 transitions. [2021-06-05 03:48:13,972 INFO L78 Accepts]: Start accepts. Automaton has 13399 states and 71203 transitions. Word has length 33 [2021-06-05 03:48:13,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:13,972 INFO L482 AbstractCegarLoop]: Abstraction has 13399 states and 71203 transitions. [2021-06-05 03:48:13,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:13,972 INFO L276 IsEmpty]: Start isEmpty. Operand 13399 states and 71203 transitions. [2021-06-05 03:48:14,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:14,001 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:14,001 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:14,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-05 03:48:14,001 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 03:48:14,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:14,002 INFO L82 PathProgramCache]: Analyzing trace with hash -980050311, now seen corresponding path program 202 times [2021-06-05 03:48:14,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:14,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564605245] [2021-06-05 03:48:14,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:14,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:14,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:14,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564605245] [2021-06-05 03:48:14,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564605245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:14,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:14,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:14,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4102604] [2021-06-05 03:48:14,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:14,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:14,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:14,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:14,141 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 03:48:14,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:14,376 INFO L93 Difference]: Finished difference Result 31283 states and 157306 transitions. [2021-06-05 03:48:14,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:14,376 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 03:48:14,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:14,472 INFO L225 Difference]: With dead ends: 31283 [2021-06-05 03:48:14,472 INFO L226 Difference]: Without dead ends: 30396 [2021-06-05 03:48:14,472 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:15,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30396 states. [2021-06-05 03:48:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30396 to 13275. [2021-06-05 03:48:15,734 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 03:48:15,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70643 transitions. [2021-06-05 03:48:15,783 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70643 transitions. Word has length 33 [2021-06-05 03:48:15,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:15,783 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70643 transitions. [2021-06-05 03:48:15,783 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 03:48:15,783 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70643 transitions. [2021-06-05 03:48:15,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:15,812 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:15,812 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:15,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-05 03:48:15,812 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 03:48:15,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:15,812 INFO L82 PathProgramCache]: Analyzing trace with hash -717130119, now seen corresponding path program 203 times [2021-06-05 03:48:15,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:15,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175533274] [2021-06-05 03:48:15,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:15,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:15,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:15,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175533274] [2021-06-05 03:48:15,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175533274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:15,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:15,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:15,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489355672] [2021-06-05 03:48:15,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:15,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:15,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:15,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:15,993 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 03:48:16,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:16,300 INFO L93 Difference]: Finished difference Result 31219 states and 157126 transitions. [2021-06-05 03:48:16,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:16,301 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:16,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:16,412 INFO L225 Difference]: With dead ends: 31219 [2021-06-05 03:48:16,412 INFO L226 Difference]: Without dead ends: 30484 [2021-06-05 03:48:16,413 INFO L777 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 03:48:17,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30484 states. [2021-06-05 03:48:17,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30484 to 13387. [2021-06-05 03:48:17,662 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 03:48:17,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71107 transitions. [2021-06-05 03:48:17,706 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71107 transitions. Word has length 33 [2021-06-05 03:48:17,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:17,707 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71107 transitions. [2021-06-05 03:48:17,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:17,707 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71107 transitions. [2021-06-05 03:48:17,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:17,732 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:17,732 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:17,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-05 03:48:17,732 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 03:48:17,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:17,732 INFO L82 PathProgramCache]: Analyzing trace with hash -2027711141, now seen corresponding path program 204 times [2021-06-05 03:48:17,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:17,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063574335] [2021-06-05 03:48:17,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:17,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:17,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063574335] [2021-06-05 03:48:17,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063574335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:17,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:17,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:17,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521396141] [2021-06-05 03:48:17,910 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:17,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:17,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:17,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:17,910 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 03:48:18,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:18,330 INFO L93 Difference]: Finished difference Result 31247 states and 157118 transitions. [2021-06-05 03:48:18,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:18,331 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 03:48:18,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:18,449 INFO L225 Difference]: With dead ends: 31247 [2021-06-05 03:48:18,449 INFO L226 Difference]: Without dead ends: 30316 [2021-06-05 03:48:18,449 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 200.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30316 states. [2021-06-05 03:48:19,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30316 to 13219. [2021-06-05 03:48:19,471 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 03:48:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70411 transitions. [2021-06-05 03:48:19,514 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70411 transitions. Word has length 33 [2021-06-05 03:48:19,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:19,514 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70411 transitions. [2021-06-05 03:48:19,514 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 03:48:19,514 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70411 transitions. [2021-06-05 03:48:19,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:19,540 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:19,540 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:19,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-05 03:48:19,540 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 03:48:19,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:19,540 INFO L82 PathProgramCache]: Analyzing trace with hash -538025027, now seen corresponding path program 205 times [2021-06-05 03:48:19,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:19,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782708970] [2021-06-05 03:48:19,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:19,777 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2021-06-05 03:48:19,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:19,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:19,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782708970] [2021-06-05 03:48:19,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782708970] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:19,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:19,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:19,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101858176] [2021-06-05 03:48:19,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:19,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:19,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:19,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:19,831 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 03:48:20,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:20,070 INFO L93 Difference]: Finished difference Result 31825 states and 159992 transitions. [2021-06-05 03:48:20,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:20,070 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:20,164 INFO L225 Difference]: With dead ends: 31825 [2021-06-05 03:48:20,165 INFO L226 Difference]: Without dead ends: 31066 [2021-06-05 03:48:20,165 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 316.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31066 states. [2021-06-05 03:48:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31066 to 13501. [2021-06-05 03:48:21,396 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 03:48:21,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13501 states to 13501 states and 71756 transitions. [2021-06-05 03:48:21,439 INFO L78 Accepts]: Start accepts. Automaton has 13501 states and 71756 transitions. Word has length 33 [2021-06-05 03:48:21,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:21,439 INFO L482 AbstractCegarLoop]: Abstraction has 13501 states and 71756 transitions. [2021-06-05 03:48:21,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:21,440 INFO L276 IsEmpty]: Start isEmpty. Operand 13501 states and 71756 transitions. [2021-06-05 03:48:21,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:21,465 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:21,465 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:21,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-05 03:48:21,466 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 03:48:21,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:21,466 INFO L82 PathProgramCache]: Analyzing trace with hash -108323749, now seen corresponding path program 206 times [2021-06-05 03:48:21,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:21,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701301951] [2021-06-05 03:48:21,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:21,628 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 03:48:21,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:21,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701301951] [2021-06-05 03:48:21,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701301951] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:21,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:21,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:21,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41666624] [2021-06-05 03:48:21,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:21,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:21,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:21,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:21,629 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 03:48:21,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:21,852 INFO L93 Difference]: Finished difference Result 31960 states and 160463 transitions. [2021-06-05 03:48:21,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:21,853 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 03:48:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:21,944 INFO L225 Difference]: With dead ends: 31960 [2021-06-05 03:48:21,944 INFO L226 Difference]: Without dead ends: 30878 [2021-06-05 03:48:21,944 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30878 states. [2021-06-05 03:48:23,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30878 to 13313. [2021-06-05 03:48:23,144 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 03:48:23,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70838 transitions. [2021-06-05 03:48:23,187 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70838 transitions. Word has length 33 [2021-06-05 03:48:23,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:23,188 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70838 transitions. [2021-06-05 03:48:23,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70838 transitions. [2021-06-05 03:48:23,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:23,213 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:23,213 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:23,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-05 03:48:23,214 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 03:48:23,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:23,214 INFO L82 PathProgramCache]: Analyzing trace with hash -53054309, now seen corresponding path program 207 times [2021-06-05 03:48:23,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:23,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334768468] [2021-06-05 03:48:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:23,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:23,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334768468] [2021-06-05 03:48:23,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334768468] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:23,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:23,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:23,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197854996] [2021-06-05 03:48:23,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:23,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:23,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:23,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:23,350 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 03:48:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:23,585 INFO L93 Difference]: Finished difference Result 31630 states and 158995 transitions. [2021-06-05 03:48:23,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:23,585 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:23,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:23,676 INFO L225 Difference]: With dead ends: 31630 [2021-06-05 03:48:23,676 INFO L226 Difference]: Without dead ends: 30871 [2021-06-05 03:48:23,677 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:24,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30871 states. [2021-06-05 03:48:24,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30871 to 13437. [2021-06-05 03:48:25,017 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 03:48:25,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13437 states to 13437 states and 71342 transitions. [2021-06-05 03:48:25,061 INFO L78 Accepts]: Start accepts. Automaton has 13437 states and 71342 transitions. Word has length 33 [2021-06-05 03:48:25,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:25,062 INFO L482 AbstractCegarLoop]: Abstraction has 13437 states and 71342 transitions. [2021-06-05 03:48:25,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:25,062 INFO L276 IsEmpty]: Start isEmpty. Operand 13437 states and 71342 transitions. [2021-06-05 03:48:25,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:25,088 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:25,088 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:25,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-05 03:48:25,088 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 03:48:25,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:25,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1973906779, now seen corresponding path program 208 times [2021-06-05 03:48:25,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:25,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909144808] [2021-06-05 03:48:25,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:25,227 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 03:48:25,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:25,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909144808] [2021-06-05 03:48:25,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909144808] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:25,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:25,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:25,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297647152] [2021-06-05 03:48:25,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:25,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:25,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:25,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:25,228 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 03:48:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:25,471 INFO L93 Difference]: Finished difference Result 31634 states and 158883 transitions. [2021-06-05 03:48:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:25,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:25,568 INFO L225 Difference]: With dead ends: 31634 [2021-06-05 03:48:25,568 INFO L226 Difference]: Without dead ends: 30747 [2021-06-05 03:48:25,569 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:26,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30747 states. [2021-06-05 03:48:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30747 to 13313. [2021-06-05 03:48:26,916 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 03:48:26,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13313 states to 13313 states and 70776 transitions. [2021-06-05 03:48:26,961 INFO L78 Accepts]: Start accepts. Automaton has 13313 states and 70776 transitions. Word has length 33 [2021-06-05 03:48:26,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:26,961 INFO L482 AbstractCegarLoop]: Abstraction has 13313 states and 70776 transitions. [2021-06-05 03:48:26,961 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 03:48:26,961 INFO L276 IsEmpty]: Start isEmpty. Operand 13313 states and 70776 transitions. [2021-06-05 03:48:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:26,989 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:26,989 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:26,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-05 03:48:26,989 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 03:48:26,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:26,989 INFO L82 PathProgramCache]: Analyzing trace with hash -2065279367, now seen corresponding path program 209 times [2021-06-05 03:48:26,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:26,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974387956] [2021-06-05 03:48:26,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:27,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:27,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:27,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974387956] [2021-06-05 03:48:27,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974387956] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:27,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:27,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:27,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232480778] [2021-06-05 03:48:27,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:27,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:27,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:27,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:27,128 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 03:48:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:27,379 INFO L93 Difference]: Finished difference Result 31966 states and 160450 transitions. [2021-06-05 03:48:27,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:27,379 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 03:48:27,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:27,814 INFO L225 Difference]: With dead ends: 31966 [2021-06-05 03:48:27,814 INFO L226 Difference]: Without dead ends: 31072 [2021-06-05 03:48:27,815 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 146.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:28,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31072 states. [2021-06-05 03:48:28,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31072 to 13503. [2021-06-05 03:48:28,867 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 03:48:28,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13503 states to 13503 states and 71541 transitions. [2021-06-05 03:48:28,914 INFO L78 Accepts]: Start accepts. Automaton has 13503 states and 71541 transitions. Word has length 33 [2021-06-05 03:48:28,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:28,914 INFO L482 AbstractCegarLoop]: Abstraction has 13503 states and 71541 transitions. [2021-06-05 03:48:28,914 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 03:48:28,914 INFO L276 IsEmpty]: Start isEmpty. Operand 13503 states and 71541 transitions. [2021-06-05 03:48:28,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:28,943 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:28,943 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:28,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-05 03:48:28,943 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 03:48:28,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:28,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1055728219, now seen corresponding path program 210 times [2021-06-05 03:48:28,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:28,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312811613] [2021-06-05 03:48:28,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:29,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:29,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312811613] [2021-06-05 03:48:29,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312811613] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:29,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:29,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:29,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761243685] [2021-06-05 03:48:29,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:29,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:29,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:29,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:29,081 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 03:48:29,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:29,507 INFO L93 Difference]: Finished difference Result 31835 states and 159677 transitions. [2021-06-05 03:48:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:29,507 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 03:48:29,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:29,600 INFO L225 Difference]: With dead ends: 31835 [2021-06-05 03:48:29,601 INFO L226 Difference]: Without dead ends: 30788 [2021-06-05 03:48:29,601 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30788 states. [2021-06-05 03:48:30,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30788 to 13219. [2021-06-05 03:48:30,630 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 03:48:30,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70367 transitions. [2021-06-05 03:48:30,674 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70367 transitions. Word has length 33 [2021-06-05 03:48:30,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:30,674 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70367 transitions. [2021-06-05 03:48:30,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:30,675 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70367 transitions. [2021-06-05 03:48:30,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:30,700 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:30,700 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:30,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-05 03:48:30,700 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 03:48:30,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:30,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1691185543, now seen corresponding path program 211 times [2021-06-05 03:48:30,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:30,700 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610075301] [2021-06-05 03:48:30,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:31,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:31,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610075301] [2021-06-05 03:48:31,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610075301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:31,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:31,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:31,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668811837] [2021-06-05 03:48:31,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:31,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:31,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:31,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:31,001 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 03:48:31,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:31,234 INFO L93 Difference]: Finished difference Result 31711 states and 159487 transitions. [2021-06-05 03:48:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:31,235 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 03:48:31,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:31,335 INFO L225 Difference]: With dead ends: 31711 [2021-06-05 03:48:31,336 INFO L226 Difference]: Without dead ends: 30976 [2021-06-05 03:48:31,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 207.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30976 states. [2021-06-05 03:48:32,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30976 to 13483. [2021-06-05 03:48:32,528 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 03:48:32,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71643 transitions. [2021-06-05 03:48:32,572 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71643 transitions. Word has length 33 [2021-06-05 03:48:32,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:32,572 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71643 transitions. [2021-06-05 03:48:32,572 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:32,572 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71643 transitions. [2021-06-05 03:48:32,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:32,598 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:32,598 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:32,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-05 03:48:32,598 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 03:48:32,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:32,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1615651237, now seen corresponding path program 212 times [2021-06-05 03:48:32,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:32,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536010636] [2021-06-05 03:48:32,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:32,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:32,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536010636] [2021-06-05 03:48:32,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536010636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:32,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:32,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:32,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986203631] [2021-06-05 03:48:32,757 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:32,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:32,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:32,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:32,757 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 03:48:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:32,962 INFO L93 Difference]: Finished difference Result 31870 states and 160062 transitions. [2021-06-05 03:48:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:32,963 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:33,054 INFO L225 Difference]: With dead ends: 31870 [2021-06-05 03:48:33,054 INFO L226 Difference]: Without dead ends: 30800 [2021-06-05 03:48:33,054 INFO L777 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 03:48:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30800 states. [2021-06-05 03:48:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30800 to 13307. [2021-06-05 03:48:34,245 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 03:48:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70771 transitions. [2021-06-05 03:48:34,289 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70771 transitions. Word has length 33 [2021-06-05 03:48:34,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:34,289 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70771 transitions. [2021-06-05 03:48:34,289 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70771 transitions. [2021-06-05 03:48:34,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:34,314 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:34,314 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:34,315 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-05 03:48:34,315 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 03:48:34,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:34,315 INFO L82 PathProgramCache]: Analyzing trace with hash -290068005, now seen corresponding path program 213 times [2021-06-05 03:48:34,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:34,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560763551] [2021-06-05 03:48:34,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:34,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:34,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560763551] [2021-06-05 03:48:34,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560763551] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:34,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:34,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:34,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510521215] [2021-06-05 03:48:34,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:34,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:34,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:34,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:34,492 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 03:48:34,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:34,715 INFO L93 Difference]: Finished difference Result 31516 states and 158496 transitions. [2021-06-05 03:48:34,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:34,715 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:34,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:34,805 INFO L225 Difference]: With dead ends: 31516 [2021-06-05 03:48:34,805 INFO L226 Difference]: Without dead ends: 30781 [2021-06-05 03:48:34,805 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 199.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:35,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30781 states. [2021-06-05 03:48:36,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30781 to 13419. [2021-06-05 03:48:36,080 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 03:48:36,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71235 transitions. [2021-06-05 03:48:36,125 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71235 transitions. Word has length 33 [2021-06-05 03:48:36,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:36,125 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71235 transitions. [2021-06-05 03:48:36,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:36,125 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71235 transitions. [2021-06-05 03:48:36,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:36,150 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:36,150 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:36,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-06-05 03:48:36,150 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 03:48:36,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:36,150 INFO L82 PathProgramCache]: Analyzing trace with hash 656330075, now seen corresponding path program 214 times [2021-06-05 03:48:36,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:36,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139661116] [2021-06-05 03:48:36,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:36,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:36,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:36,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139661116] [2021-06-05 03:48:36,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139661116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:36,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:36,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:36,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533789540] [2021-06-05 03:48:36,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:36,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:36,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:36,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:36,313 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 03:48:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:36,537 INFO L93 Difference]: Finished difference Result 31544 states and 158488 transitions. [2021-06-05 03:48:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:36,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:36,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:36,633 INFO L225 Difference]: With dead ends: 31544 [2021-06-05 03:48:36,634 INFO L226 Difference]: Without dead ends: 30669 [2021-06-05 03:48:36,634 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 189.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:37,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30669 states. [2021-06-05 03:48:37,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30669 to 13307. [2021-06-05 03:48:37,918 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 03:48:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70715 transitions. [2021-06-05 03:48:37,963 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70715 transitions. Word has length 33 [2021-06-05 03:48:37,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:37,963 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70715 transitions. [2021-06-05 03:48:37,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:37,963 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70715 transitions. [2021-06-05 03:48:37,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:37,989 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:37,989 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:37,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-05 03:48:37,990 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 03:48:37,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:37,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1636371645, now seen corresponding path program 215 times [2021-06-05 03:48:37,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:37,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254583225] [2021-06-05 03:48:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:38,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:38,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:38,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254583225] [2021-06-05 03:48:38,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254583225] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:38,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:38,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:38,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634433710] [2021-06-05 03:48:38,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:38,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:38,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:38,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:38,140 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 03:48:38,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:38,575 INFO L93 Difference]: Finished difference Result 31912 states and 160193 transitions. [2021-06-05 03:48:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:38,575 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 03:48:38,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:38,693 INFO L225 Difference]: With dead ends: 31912 [2021-06-05 03:48:38,693 INFO L226 Difference]: Without dead ends: 31018 [2021-06-05 03:48:38,693 INFO L777 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 03:48:39,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31018 states. [2021-06-05 03:48:39,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31018 to 13497. [2021-06-05 03:48:39,749 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 03:48:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71480 transitions. [2021-06-05 03:48:39,794 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71480 transitions. Word has length 33 [2021-06-05 03:48:39,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:39,794 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71480 transitions. [2021-06-05 03:48:39,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:39,795 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71480 transitions. [2021-06-05 03:48:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:39,821 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:39,821 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:39,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-05 03:48:39,822 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 03:48:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:39,822 INFO L82 PathProgramCache]: Analyzing trace with hash -396640997, now seen corresponding path program 216 times [2021-06-05 03:48:39,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:39,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489143530] [2021-06-05 03:48:39,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:39,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:39,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:39,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489143530] [2021-06-05 03:48:39,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489143530] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:39,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:39,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:39,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763404474] [2021-06-05 03:48:39,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:39,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:39,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:39,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:39,968 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 03:48:40,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:40,361 INFO L93 Difference]: Finished difference Result 31781 states and 159420 transitions. [2021-06-05 03:48:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:40,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:40,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:40,462 INFO L225 Difference]: With dead ends: 31781 [2021-06-05 03:48:40,462 INFO L226 Difference]: Without dead ends: 30696 [2021-06-05 03:48:40,462 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:41,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30696 states. [2021-06-05 03:48:41,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30696 to 13175. [2021-06-05 03:48:41,512 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 03:48:41,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13175 states to 13175 states and 70193 transitions. [2021-06-05 03:48:41,795 INFO L78 Accepts]: Start accepts. Automaton has 13175 states and 70193 transitions. Word has length 33 [2021-06-05 03:48:41,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:41,795 INFO L482 AbstractCegarLoop]: Abstraction has 13175 states and 70193 transitions. [2021-06-05 03:48:41,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:41,796 INFO L276 IsEmpty]: Start isEmpty. Operand 13175 states and 70193 transitions. [2021-06-05 03:48:41,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:41,823 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:41,823 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:41,823 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-06-05 03:48:41,823 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 03:48:41,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:41,824 INFO L82 PathProgramCache]: Analyzing trace with hash 776824663, now seen corresponding path program 217 times [2021-06-05 03:48:41,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:41,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057851264] [2021-06-05 03:48:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:41,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:41,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:41,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057851264] [2021-06-05 03:48:41,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057851264] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:41,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:41,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:41,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172246650] [2021-06-05 03:48:41,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:41,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:41,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:41,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:41,972 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 03:48:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:42,197 INFO L93 Difference]: Finished difference Result 31484 states and 158570 transitions. [2021-06-05 03:48:42,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:42,197 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:42,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:42,288 INFO L225 Difference]: With dead ends: 31484 [2021-06-05 03:48:42,288 INFO L226 Difference]: Without dead ends: 30733 [2021-06-05 03:48:42,288 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:43,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30733 states. [2021-06-05 03:48:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30733 to 13419. [2021-06-05 03:48:43,521 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 03:48:43,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71417 transitions. [2021-06-05 03:48:43,563 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71417 transitions. Word has length 33 [2021-06-05 03:48:43,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:43,563 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71417 transitions. [2021-06-05 03:48:43,563 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 03:48:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71417 transitions. [2021-06-05 03:48:43,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:43,589 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:43,589 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:43,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-06-05 03:48:43,589 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 03:48:43,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:43,589 INFO L82 PathProgramCache]: Analyzing trace with hash 295922617, now seen corresponding path program 218 times [2021-06-05 03:48:43,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:43,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932397901] [2021-06-05 03:48:43,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:43,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:43,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:43,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932397901] [2021-06-05 03:48:43,737 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932397901] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:43,737 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:43,737 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:43,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116707796] [2021-06-05 03:48:43,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:43,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:43,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:43,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:43,737 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 03:48:43,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:43,960 INFO L93 Difference]: Finished difference Result 31468 states and 158394 transitions. [2021-06-05 03:48:43,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:43,960 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:43,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:44,050 INFO L225 Difference]: With dead ends: 31468 [2021-06-05 03:48:44,050 INFO L226 Difference]: Without dead ends: 30621 [2021-06-05 03:48:44,051 INFO L777 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 03:48:45,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30621 states. [2021-06-05 03:48:45,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30621 to 13307. [2021-06-05 03:48:45,304 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 03:48:45,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70897 transitions. [2021-06-05 03:48:45,347 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70897 transitions. Word has length 33 [2021-06-05 03:48:45,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:45,347 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70897 transitions. [2021-06-05 03:48:45,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:45,347 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70897 transitions. [2021-06-05 03:48:45,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:45,372 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:45,372 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:45,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-06-05 03:48:45,372 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 03:48:45,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:45,372 INFO L82 PathProgramCache]: Analyzing trace with hash 350848697, now seen corresponding path program 219 times [2021-06-05 03:48:45,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:45,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826155669] [2021-06-05 03:48:45,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:45,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:45,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826155669] [2021-06-05 03:48:45,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826155669] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:45,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:45,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:45,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680075593] [2021-06-05 03:48:45,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:45,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:45,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:45,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:45,539 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 03:48:45,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:45,769 INFO L93 Difference]: Finished difference Result 31715 states and 159557 transitions. [2021-06-05 03:48:45,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:45,770 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 03:48:45,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:45,862 INFO L225 Difference]: With dead ends: 31715 [2021-06-05 03:48:45,862 INFO L226 Difference]: Without dead ends: 30964 [2021-06-05 03:48:45,862 INFO L777 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 03:48:46,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30964 states. [2021-06-05 03:48:47,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30964 to 13491. [2021-06-05 03:48:47,111 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 03:48:47,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71709 transitions. [2021-06-05 03:48:47,156 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71709 transitions. Word has length 33 [2021-06-05 03:48:47,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:47,157 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71709 transitions. [2021-06-05 03:48:47,157 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 03:48:47,157 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71709 transitions. [2021-06-05 03:48:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:47,184 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:47,184 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:47,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-06-05 03:48:47,184 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 03:48:47,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:47,185 INFO L82 PathProgramCache]: Analyzing trace with hash 2069913273, now seen corresponding path program 220 times [2021-06-05 03:48:47,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:47,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443722180] [2021-06-05 03:48:47,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:47,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:47,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443722180] [2021-06-05 03:48:47,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443722180] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:47,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:47,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:47,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670800157] [2021-06-05 03:48:47,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:47,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:47,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:47,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:47,350 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 03:48:47,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:47,549 INFO L93 Difference]: Finished difference Result 31858 states and 160060 transitions. [2021-06-05 03:48:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:47,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:47,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:47,638 INFO L225 Difference]: With dead ends: 31858 [2021-06-05 03:48:47,639 INFO L226 Difference]: Without dead ends: 30780 [2021-06-05 03:48:47,639 INFO L777 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 03:48:48,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30780 states. [2021-06-05 03:48:48,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30780 to 13307. [2021-06-05 03:48:48,884 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 03:48:48,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70809 transitions. [2021-06-05 03:48:48,928 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70809 transitions. Word has length 33 [2021-06-05 03:48:48,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:48,928 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70809 transitions. [2021-06-05 03:48:48,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:48,928 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70809 transitions. [2021-06-05 03:48:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:48,953 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:48,953 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:48,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-06-05 03:48:48,953 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 03:48:48,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:48,953 INFO L82 PathProgramCache]: Analyzing trace with hash -438537573, now seen corresponding path program 221 times [2021-06-05 03:48:48,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:48,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338105806] [2021-06-05 03:48:48,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:49,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:49,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338105806] [2021-06-05 03:48:49,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338105806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:49,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:49,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:49,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010052609] [2021-06-05 03:48:49,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:49,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:49,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:49,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:49,112 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 03:48:49,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:49,526 INFO L93 Difference]: Finished difference Result 31675 states and 159305 transitions. [2021-06-05 03:48:49,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:49,526 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:49,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:49,625 INFO L225 Difference]: With dead ends: 31675 [2021-06-05 03:48:49,625 INFO L226 Difference]: Without dead ends: 30940 [2021-06-05 03:48:49,625 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30940 states. [2021-06-05 03:48:50,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30940 to 13483. [2021-06-05 03:48:50,683 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 03:48:50,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71593 transitions. [2021-06-05 03:48:50,727 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71593 transitions. Word has length 33 [2021-06-05 03:48:50,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:50,727 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71593 transitions. [2021-06-05 03:48:50,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:50,727 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71593 transitions. [2021-06-05 03:48:50,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:50,753 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:50,753 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:50,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-05 03:48:50,753 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 03:48:50,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:50,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1903025913, now seen corresponding path program 222 times [2021-06-05 03:48:50,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:50,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789553690] [2021-06-05 03:48:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:50,961 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2021-06-05 03:48:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:51,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:51,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789553690] [2021-06-05 03:48:51,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789553690] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:51,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:51,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:51,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782185493] [2021-06-05 03:48:51,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:51,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:51,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:51,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:51,051 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 03:48:51,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:51,269 INFO L93 Difference]: Finished difference Result 31834 states and 159880 transitions. [2021-06-05 03:48:51,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:51,269 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:51,365 INFO L225 Difference]: With dead ends: 31834 [2021-06-05 03:48:51,365 INFO L226 Difference]: Without dead ends: 30676 [2021-06-05 03:48:51,365 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 304.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30676 states. [2021-06-05 03:48:52,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30676 to 13219. [2021-06-05 03:48:52,617 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 03:48:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70417 transitions. [2021-06-05 03:48:52,660 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70417 transitions. Word has length 33 [2021-06-05 03:48:52,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:52,660 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70417 transitions. [2021-06-05 03:48:52,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70417 transitions. [2021-06-05 03:48:52,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:52,686 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:52,686 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:52,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-06-05 03:48:52,686 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 03:48:52,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:52,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1368952263, now seen corresponding path program 223 times [2021-06-05 03:48:52,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:52,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137286773] [2021-06-05 03:48:52,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:52,820 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:52,820 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137286773] [2021-06-05 03:48:52,820 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137286773] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:52,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:52,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:52,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114051810] [2021-06-05 03:48:52,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:52,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:52,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:52,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:52,821 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 03:48:53,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:53,080 INFO L93 Difference]: Finished difference Result 31193 states and 157127 transitions. [2021-06-05 03:48:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:53,080 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 03:48:53,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:53,176 INFO L225 Difference]: With dead ends: 31193 [2021-06-05 03:48:53,176 INFO L226 Difference]: Without dead ends: 30442 [2021-06-05 03:48:53,176 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 162.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30442 states. [2021-06-05 03:48:54,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30442 to 13387. [2021-06-05 03:48:54,402 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 03:48:54,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71197 transitions. [2021-06-05 03:48:54,449 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71197 transitions. Word has length 33 [2021-06-05 03:48:54,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:54,449 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71197 transitions. [2021-06-05 03:48:54,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:54,449 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71197 transitions. [2021-06-05 03:48:54,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:54,476 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:54,476 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:54,476 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-06-05 03:48:54,476 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 03:48:54,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:54,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1849854309, now seen corresponding path program 224 times [2021-06-05 03:48:54,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:54,476 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166634980] [2021-06-05 03:48:54,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:54,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:54,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166634980] [2021-06-05 03:48:54,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166634980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:54,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:54,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:54,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891377383] [2021-06-05 03:48:54,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:54,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:54,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:54,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:54,622 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 03:48:54,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:54,853 INFO L93 Difference]: Finished difference Result 31177 states and 156951 transitions. [2021-06-05 03:48:54,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:54,853 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 03:48:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:54,946 INFO L225 Difference]: With dead ends: 31177 [2021-06-05 03:48:54,946 INFO L226 Difference]: Without dead ends: 30330 [2021-06-05 03:48:54,946 INFO L777 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 03:48:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30330 states. [2021-06-05 03:48:56,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30330 to 13275. [2021-06-05 03:48:56,185 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 03:48:56,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70677 transitions. [2021-06-05 03:48:56,230 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70677 transitions. Word has length 33 [2021-06-05 03:48:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:56,230 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70677 transitions. [2021-06-05 03:48:56,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70677 transitions. [2021-06-05 03:48:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:56,256 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:56,256 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:56,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-06-05 03:48:56,257 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 03:48:56,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:56,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1881503161, now seen corresponding path program 225 times [2021-06-05 03:48:56,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:56,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978121389] [2021-06-05 03:48:56,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:56,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:56,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978121389] [2021-06-05 03:48:56,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978121389] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:56,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:56,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:56,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314901731] [2021-06-05 03:48:56,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:56,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:56,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:56,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:56,394 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 03:48:56,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:56,643 INFO L93 Difference]: Finished difference Result 31229 states and 157211 transitions. [2021-06-05 03:48:56,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:56,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:56,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:56,737 INFO L225 Difference]: With dead ends: 31229 [2021-06-05 03:48:56,738 INFO L226 Difference]: Without dead ends: 30478 [2021-06-05 03:48:56,738 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:57,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30478 states. [2021-06-05 03:48:58,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30478 to 13395. [2021-06-05 03:48:58,049 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 03:48:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13395 states to 13395 states and 71169 transitions. [2021-06-05 03:48:58,094 INFO L78 Accepts]: Start accepts. Automaton has 13395 states and 71169 transitions. Word has length 33 [2021-06-05 03:48:58,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:58,094 INFO L482 AbstractCegarLoop]: Abstraction has 13395 states and 71169 transitions. [2021-06-05 03:48:58,094 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 03:48:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 13395 states and 71169 transitions. [2021-06-05 03:48:58,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:58,121 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:58,121 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:58,121 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-06-05 03:48:58,121 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 03:48:58,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:58,121 INFO L82 PathProgramCache]: Analyzing trace with hash -2100417095, now seen corresponding path program 226 times [2021-06-05 03:48:58,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:58,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475024052] [2021-06-05 03:48:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:58,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:58,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475024052] [2021-06-05 03:48:58,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475024052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:58,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:58,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:48:58,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538824958] [2021-06-05 03:48:58,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:48:58,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:58,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:48:58,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:58,259 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 03:48:58,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:58,498 INFO L93 Difference]: Finished difference Result 31241 states and 157131 transitions. [2021-06-05 03:48:58,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:48:58,498 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:48:58,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:58,590 INFO L225 Difference]: With dead ends: 31241 [2021-06-05 03:48:58,591 INFO L226 Difference]: Without dead ends: 30358 [2021-06-05 03:48:58,591 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:48:59,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30358 states. [2021-06-05 03:48:59,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30358 to 13275. [2021-06-05 03:48:59,834 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 03:48:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13275 states to 13275 states and 70621 transitions. [2021-06-05 03:48:59,877 INFO L78 Accepts]: Start accepts. Automaton has 13275 states and 70621 transitions. Word has length 33 [2021-06-05 03:48:59,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:59,877 INFO L482 AbstractCegarLoop]: Abstraction has 13275 states and 70621 transitions. [2021-06-05 03:48:59,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:59,877 INFO L276 IsEmpty]: Start isEmpty. Operand 13275 states and 70621 transitions. [2021-06-05 03:48:59,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:48:59,902 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:59,902 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:59,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-06-05 03:48:59,902 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 03:48:59,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:59,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1092116891, now seen corresponding path program 227 times [2021-06-05 03:48:59,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:59,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466829632] [2021-06-05 03:48:59,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:00,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:00,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466829632] [2021-06-05 03:49:00,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466829632] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:00,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:00,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:00,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727023201] [2021-06-05 03:49:00,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:00,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:00,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:00,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:00,061 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 03:49:00,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:00,466 INFO L93 Difference]: Finished difference Result 31189 states and 156991 transitions. [2021-06-05 03:49:00,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:00,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:00,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:00,567 INFO L225 Difference]: With dead ends: 31189 [2021-06-05 03:49:00,567 INFO L226 Difference]: Without dead ends: 30454 [2021-06-05 03:49:00,567 INFO L777 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 03:49:01,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30454 states. [2021-06-05 03:49:01,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30454 to 13387. [2021-06-05 03:49:01,582 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 03:49:01,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13387 states to 13387 states and 71085 transitions. [2021-06-05 03:49:01,626 INFO L78 Accepts]: Start accepts. Automaton has 13387 states and 71085 transitions. Word has length 33 [2021-06-05 03:49:01,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:01,626 INFO L482 AbstractCegarLoop]: Abstraction has 13387 states and 71085 transitions. [2021-06-05 03:49:01,626 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 03:49:01,626 INFO L276 IsEmpty]: Start isEmpty. Operand 13387 states and 71085 transitions. [2021-06-05 03:49:01,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:01,652 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:01,652 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:01,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-06-05 03:49:01,652 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 03:49:01,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:01,652 INFO L82 PathProgramCache]: Analyzing trace with hash -881189127, now seen corresponding path program 228 times [2021-06-05 03:49:01,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:01,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828783202] [2021-06-05 03:49:01,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:01,941 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:01,941 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828783202] [2021-06-05 03:49:01,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828783202] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:01,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:01,942 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:01,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432141911] [2021-06-05 03:49:01,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:01,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:01,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:01,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:01,942 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 03:49:02,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:02,168 INFO L93 Difference]: Finished difference Result 31217 states and 156983 transitions. [2021-06-05 03:49:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:02,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:02,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:02,262 INFO L225 Difference]: With dead ends: 31217 [2021-06-05 03:49:02,263 INFO L226 Difference]: Without dead ends: 30286 [2021-06-05 03:49:02,263 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 317.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:03,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30286 states. [2021-06-05 03:49:03,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30286 to 13219. [2021-06-05 03:49:03,506 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 03:49:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70389 transitions. [2021-06-05 03:49:03,553 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70389 transitions. Word has length 33 [2021-06-05 03:49:03,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:03,553 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70389 transitions. [2021-06-05 03:49:03,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:03,553 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70389 transitions. [2021-06-05 03:49:03,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:03,580 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:03,580 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:03,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-06-05 03:49:03,580 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 03:49:03,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:03,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1191353189, now seen corresponding path program 229 times [2021-06-05 03:49:03,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:03,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917588632] [2021-06-05 03:49:03,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:03,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:03,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:03,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917588632] [2021-06-05 03:49:03,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917588632] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:03,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:03,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:03,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612488022] [2021-06-05 03:49:03,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:03,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:03,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:03,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:03,743 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 03:49:03,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:03,984 INFO L93 Difference]: Finished difference Result 31769 states and 159760 transitions. [2021-06-05 03:49:03,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:03,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:03,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:04,081 INFO L225 Difference]: With dead ends: 31769 [2021-06-05 03:49:04,082 INFO L226 Difference]: Without dead ends: 31018 [2021-06-05 03:49:04,082 INFO L777 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 03:49:04,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31018 states. [2021-06-05 03:49:05,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31018 to 13495. [2021-06-05 03:49:05,311 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 03:49:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 71713 transitions. [2021-06-05 03:49:05,360 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 71713 transitions. Word has length 33 [2021-06-05 03:49:05,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:05,361 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 71713 transitions. [2021-06-05 03:49:05,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:05,361 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 71713 transitions. [2021-06-05 03:49:05,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:05,390 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:05,390 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:05,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-06-05 03:49:05,390 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 03:49:05,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:05,390 INFO L82 PathProgramCache]: Analyzing trace with hash 527711387, now seen corresponding path program 230 times [2021-06-05 03:49:05,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:05,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798689013] [2021-06-05 03:49:05,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:05,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:05,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:05,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798689013] [2021-06-05 03:49:05,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798689013] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:05,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:05,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:05,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743878613] [2021-06-05 03:49:05,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:05,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:05,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:05,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:05,545 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 03:49:05,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:05,759 INFO L93 Difference]: Finished difference Result 31912 states and 160263 transitions. [2021-06-05 03:49:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:05,759 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:05,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:05,856 INFO L225 Difference]: With dead ends: 31912 [2021-06-05 03:49:05,856 INFO L226 Difference]: Without dead ends: 30834 [2021-06-05 03:49:05,857 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 159.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30834 states. [2021-06-05 03:49:07,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30834 to 13311. [2021-06-05 03:49:07,128 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 03:49:07,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70809 transitions. [2021-06-05 03:49:07,176 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70809 transitions. Word has length 33 [2021-06-05 03:49:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:07,176 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70809 transitions. [2021-06-05 03:49:07,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:07,176 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70809 transitions. [2021-06-05 03:49:07,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:07,205 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:07,205 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:07,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-06-05 03:49:07,205 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 03:49:07,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:07,205 INFO L82 PathProgramCache]: Analyzing trace with hash -706382471, now seen corresponding path program 231 times [2021-06-05 03:49:07,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:07,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854239301] [2021-06-05 03:49:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:07,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:07,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854239301] [2021-06-05 03:49:07,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854239301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:07,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:07,341 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:07,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052143994] [2021-06-05 03:49:07,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:07,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:07,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:07,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:07,342 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 03:49:07,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:07,580 INFO L93 Difference]: Finished difference Result 31574 states and 158765 transitions. [2021-06-05 03:49:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:07,581 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 03:49:07,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:07,681 INFO L225 Difference]: With dead ends: 31574 [2021-06-05 03:49:07,682 INFO L226 Difference]: Without dead ends: 30823 [2021-06-05 03:49:07,682 INFO L777 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 03:49:08,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30823 states. [2021-06-05 03:49:08,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30823 to 13431. [2021-06-05 03:49:08,944 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 03:49:08,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13431 states to 13431 states and 71301 transitions. [2021-06-05 03:49:08,989 INFO L78 Accepts]: Start accepts. Automaton has 13431 states and 71301 transitions. Word has length 33 [2021-06-05 03:49:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:08,989 INFO L482 AbstractCegarLoop]: Abstraction has 13431 states and 71301 transitions. [2021-06-05 03:49:08,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 13431 states and 71301 transitions. [2021-06-05 03:49:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:09,015 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:09,015 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:09,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-06-05 03:49:09,015 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 03:49:09,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:09,015 INFO L82 PathProgramCache]: Analyzing trace with hash 853539995, now seen corresponding path program 232 times [2021-06-05 03:49:09,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:09,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263635879] [2021-06-05 03:49:09,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:09,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:09,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263635879] [2021-06-05 03:49:09,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263635879] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:09,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:09,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:09,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942753979] [2021-06-05 03:49:09,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:09,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:09,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:09,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:09,153 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 03:49:09,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:09,379 INFO L93 Difference]: Finished difference Result 31586 states and 158685 transitions. [2021-06-05 03:49:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:09,379 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 03:49:09,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:09,713 INFO L225 Difference]: With dead ends: 31586 [2021-06-05 03:49:09,713 INFO L226 Difference]: Without dead ends: 30703 [2021-06-05 03:49:09,713 INFO L777 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 03:49:10,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30703 states. [2021-06-05 03:49:10,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30703 to 13311. [2021-06-05 03:49:10,739 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 03:49:10,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13311 states to 13311 states and 70749 transitions. [2021-06-05 03:49:10,785 INFO L78 Accepts]: Start accepts. Automaton has 13311 states and 70749 transitions. Word has length 33 [2021-06-05 03:49:10,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:10,785 INFO L482 AbstractCegarLoop]: Abstraction has 13311 states and 70749 transitions. [2021-06-05 03:49:10,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 13311 states and 70749 transitions. [2021-06-05 03:49:10,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:10,812 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:10,812 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:10,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-06-05 03:49:10,812 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 03:49:10,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:10,812 INFO L82 PathProgramCache]: Analyzing trace with hash 718206107, now seen corresponding path program 233 times [2021-06-05 03:49:10,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:10,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735884804] [2021-06-05 03:49:10,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:10,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:10,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:10,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735884804] [2021-06-05 03:49:10,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735884804] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:10,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:10,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:10,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420865193] [2021-06-05 03:49:10,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:10,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:10,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:10,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:10,967 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 03:49:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:11,408 INFO L93 Difference]: Finished difference Result 31930 states and 160294 transitions. [2021-06-05 03:49:11,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:11,408 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:11,500 INFO L225 Difference]: With dead ends: 31930 [2021-06-05 03:49:11,500 INFO L226 Difference]: Without dead ends: 31036 [2021-06-05 03:49:11,500 INFO L777 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 03:49:12,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31036 states. [2021-06-05 03:49:12,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31036 to 13501. [2021-06-05 03:49:12,541 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 03:49:12,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13501 states to 13501 states and 71514 transitions. [2021-06-05 03:49:12,584 INFO L78 Accepts]: Start accepts. Automaton has 13501 states and 71514 transitions. Word has length 33 [2021-06-05 03:49:12,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:12,584 INFO L482 AbstractCegarLoop]: Abstraction has 13501 states and 71514 transitions. [2021-06-05 03:49:12,584 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:12,584 INFO L276 IsEmpty]: Start isEmpty. Operand 13501 states and 71514 transitions. [2021-06-05 03:49:12,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:12,765 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:12,765 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:12,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-06-05 03:49:12,765 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 03:49:12,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:12,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1314806535, now seen corresponding path program 234 times [2021-06-05 03:49:12,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:12,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512633809] [2021-06-05 03:49:12,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:12,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:12,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512633809] [2021-06-05 03:49:12,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512633809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:12,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:12,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:12,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891463729] [2021-06-05 03:49:12,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:12,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:12,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:12,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:12,933 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 03:49:13,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:13,191 INFO L93 Difference]: Finished difference Result 31799 states and 159521 transitions. [2021-06-05 03:49:13,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:13,192 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 03:49:13,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:13,286 INFO L225 Difference]: With dead ends: 31799 [2021-06-05 03:49:13,286 INFO L226 Difference]: Without dead ends: 30754 [2021-06-05 03:49:13,286 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 188.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:14,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30754 states. [2021-06-05 03:49:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30754 to 13219. [2021-06-05 03:49:14,458 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 03:49:14,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13219 states to 13219 states and 70345 transitions. [2021-06-05 03:49:14,501 INFO L78 Accepts]: Start accepts. Automaton has 13219 states and 70345 transitions. Word has length 33 [2021-06-05 03:49:14,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:14,501 INFO L482 AbstractCegarLoop]: Abstraction has 13219 states and 70345 transitions. [2021-06-05 03:49:14,501 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 03:49:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 13219 states and 70345 transitions. [2021-06-05 03:49:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:14,526 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:14,526 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:14,526 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-05 03:49:14,526 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 03:49:14,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:14,527 INFO L82 PathProgramCache]: Analyzing trace with hash -2081335299, now seen corresponding path program 235 times [2021-06-05 03:49:14,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:14,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146753684] [2021-06-05 03:49:14,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:14,699 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 03:49:14,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:14,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146753684] [2021-06-05 03:49:14,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146753684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:14,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:14,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:14,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71994136] [2021-06-05 03:49:14,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:14,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:14,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:14,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:14,700 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 03:49:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:14,935 INFO L93 Difference]: Finished difference Result 31693 states and 159396 transitions. [2021-06-05 03:49:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:14,936 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:14,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:15,027 INFO L225 Difference]: With dead ends: 31693 [2021-06-05 03:49:15,027 INFO L226 Difference]: Without dead ends: 30958 [2021-06-05 03:49:15,027 INFO L777 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 03:49:15,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30958 states. [2021-06-05 03:49:16,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30958 to 13483. [2021-06-05 03:49:16,223 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 03:49:16,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13483 states to 13483 states and 71621 transitions. [2021-06-05 03:49:16,268 INFO L78 Accepts]: Start accepts. Automaton has 13483 states and 71621 transitions. Word has length 33 [2021-06-05 03:49:16,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:16,268 INFO L482 AbstractCegarLoop]: Abstraction has 13483 states and 71621 transitions. [2021-06-05 03:49:16,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:16,268 INFO L276 IsEmpty]: Start isEmpty. Operand 13483 states and 71621 transitions. [2021-06-05 03:49:16,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:16,295 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:16,295 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:16,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-05 03:49:16,295 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 03:49:16,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:16,295 INFO L82 PathProgramCache]: Analyzing trace with hash 260228187, now seen corresponding path program 236 times [2021-06-05 03:49:16,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:16,295 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337978427] [2021-06-05 03:49:16,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:16,459 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 03:49:16,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:16,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337978427] [2021-06-05 03:49:16,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337978427] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:16,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:16,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:16,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552948707] [2021-06-05 03:49:16,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:16,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:16,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:16,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:16,460 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 03:49:16,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:16,693 INFO L93 Difference]: Finished difference Result 31852 states and 159971 transitions. [2021-06-05 03:49:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:16,694 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:16,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:16,791 INFO L225 Difference]: With dead ends: 31852 [2021-06-05 03:49:16,791 INFO L226 Difference]: Without dead ends: 30782 [2021-06-05 03:49:16,791 INFO L777 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 03:49:17,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30782 states. [2021-06-05 03:49:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30782 to 13307. [2021-06-05 03:49:18,064 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 03:49:18,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70749 transitions. [2021-06-05 03:49:18,108 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70749 transitions. Word has length 33 [2021-06-05 03:49:18,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:18,108 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70749 transitions. [2021-06-05 03:49:18,108 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 03:49:18,109 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70749 transitions. [2021-06-05 03:49:18,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:18,135 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:18,135 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:18,135 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-05 03:49:18,135 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 03:49:18,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:18,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1596364581, now seen corresponding path program 237 times [2021-06-05 03:49:18,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:18,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087092780] [2021-06-05 03:49:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:18,306 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 03:49:18,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:18,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087092780] [2021-06-05 03:49:18,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087092780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:18,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:18,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:18,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981651067] [2021-06-05 03:49:18,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:18,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:18,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:18,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:18,308 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 03:49:18,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:18,561 INFO L93 Difference]: Finished difference Result 31498 states and 158405 transitions. [2021-06-05 03:49:18,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:18,561 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:18,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:18,660 INFO L225 Difference]: With dead ends: 31498 [2021-06-05 03:49:18,661 INFO L226 Difference]: Without dead ends: 30763 [2021-06-05 03:49:18,661 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30763 states. [2021-06-05 03:49:19,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30763 to 13419. [2021-06-05 03:49:19,921 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 03:49:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13419 states to 13419 states and 71213 transitions. [2021-06-05 03:49:19,965 INFO L78 Accepts]: Start accepts. Automaton has 13419 states and 71213 transitions. Word has length 33 [2021-06-05 03:49:19,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:19,965 INFO L482 AbstractCegarLoop]: Abstraction has 13419 states and 71213 transitions. [2021-06-05 03:49:19,965 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 03:49:19,965 INFO L276 IsEmpty]: Start isEmpty. Operand 13419 states and 71213 transitions. [2021-06-05 03:49:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:19,991 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:19,991 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:19,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-05 03:49:19,992 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 03:49:19,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:19,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1972172123, now seen corresponding path program 238 times [2021-06-05 03:49:19,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:19,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871994973] [2021-06-05 03:49:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:20,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:20,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:20,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871994973] [2021-06-05 03:49:20,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871994973] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:20,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:20,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:20,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288460817] [2021-06-05 03:49:20,155 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:20,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:20,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:20,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:20,156 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 03:49:20,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:20,601 INFO L93 Difference]: Finished difference Result 31526 states and 158397 transitions. [2021-06-05 03:49:20,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:20,601 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:20,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:20,703 INFO L225 Difference]: With dead ends: 31526 [2021-06-05 03:49:20,703 INFO L226 Difference]: Without dead ends: 30651 [2021-06-05 03:49:20,703 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:21,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30651 states. [2021-06-05 03:49:21,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30651 to 13307. [2021-06-05 03:49:21,718 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 03:49:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13307 states to 13307 states and 70693 transitions. [2021-06-05 03:49:21,761 INFO L78 Accepts]: Start accepts. Automaton has 13307 states and 70693 transitions. Word has length 33 [2021-06-05 03:49:21,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:21,761 INFO L482 AbstractCegarLoop]: Abstraction has 13307 states and 70693 transitions. [2021-06-05 03:49:21,761 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 03:49:21,761 INFO L276 IsEmpty]: Start isEmpty. Operand 13307 states and 70693 transitions. [2021-06-05 03:49:21,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:21,786 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:21,786 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:21,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-05 03:49:21,786 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 03:49:21,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:21,786 INFO L82 PathProgramCache]: Analyzing trace with hash -2006277575, now seen corresponding path program 239 times [2021-06-05 03:49:21,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:21,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944422488] [2021-06-05 03:49:21,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:21,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:21,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:21,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944422488] [2021-06-05 03:49:21,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944422488] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:21,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:21,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:21,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208527714] [2021-06-05 03:49:21,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:21,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:21,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:21,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:21,935 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 03:49:22,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:22,300 INFO L93 Difference]: Finished difference Result 31894 states and 160102 transitions. [2021-06-05 03:49:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:22,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:22,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:22,392 INFO L225 Difference]: With dead ends: 31894 [2021-06-05 03:49:22,392 INFO L226 Difference]: Without dead ends: 31000 [2021-06-05 03:49:22,392 INFO L777 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 03:49:23,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31000 states. [2021-06-05 03:49:23,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31000 to 13497. [2021-06-05 03:49:23,429 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 03:49:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13497 states to 13497 states and 71458 transitions. [2021-06-05 03:49:23,698 INFO L78 Accepts]: Start accepts. Automaton has 13497 states and 71458 transitions. Word has length 33 [2021-06-05 03:49:23,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:23,699 INFO L482 AbstractCegarLoop]: Abstraction has 13497 states and 71458 transitions. [2021-06-05 03:49:23,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:23,699 INFO L276 IsEmpty]: Start isEmpty. Operand 13497 states and 71458 transitions. [2021-06-05 03:49:23,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:23,725 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:23,725 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:23,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-05 03:49:23,725 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 03:49:23,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:23,726 INFO L82 PathProgramCache]: Analyzing trace with hash -605160037, now seen corresponding path program 240 times [2021-06-05 03:49:23,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:23,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023195325] [2021-06-05 03:49:23,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:23,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:23,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023195325] [2021-06-05 03:49:23,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023195325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:23,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:23,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:23,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586640061] [2021-06-05 03:49:23,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:23,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:23,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:23,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:23,876 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 03:49:24,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:24,103 INFO L93 Difference]: Finished difference Result 31763 states and 159329 transitions. [2021-06-05 03:49:24,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:24,103 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:24,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:24,194 INFO L225 Difference]: With dead ends: 31763 [2021-06-05 03:49:24,194 INFO L226 Difference]: Without dead ends: 30656 [2021-06-05 03:49:24,194 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 178.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:24,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30656 states. [2021-06-05 03:49:25,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30656 to 13153. [2021-06-05 03:49:25,416 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 03:49:25,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 70117 transitions. [2021-06-05 03:49:25,460 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 70117 transitions. Word has length 33 [2021-06-05 03:49:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:25,460 INFO L482 AbstractCegarLoop]: Abstraction has 13153 states and 70117 transitions. [2021-06-05 03:49:25,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 70117 transitions. [2021-06-05 03:49:25,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:25,485 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:25,485 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:25,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-05 03:49:25,485 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 03:49:25,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:25,485 INFO L82 PathProgramCache]: Analyzing trace with hash 2102111005, now seen corresponding path program 241 times [2021-06-05 03:49:25,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:25,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094720916] [2021-06-05 03:49:25,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:25,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:25,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:25,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094720916] [2021-06-05 03:49:25,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094720916] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:25,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:25,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:25,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700078391] [2021-06-05 03:49:25,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:25,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:25,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:25,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:25,633 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 03:49:25,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:25,859 INFO L93 Difference]: Finished difference Result 32231 states and 161807 transitions. [2021-06-05 03:49:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:25,860 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:25,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:25,950 INFO L225 Difference]: With dead ends: 32231 [2021-06-05 03:49:25,951 INFO L226 Difference]: Without dead ends: 31472 [2021-06-05 03:49:25,951 INFO L777 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 03:49:26,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31472 states. [2021-06-05 03:49:27,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31472 to 13482. [2021-06-05 03:49:27,179 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 03:49:27,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13482 states to 13482 states and 71759 transitions. [2021-06-05 03:49:27,223 INFO L78 Accepts]: Start accepts. Automaton has 13482 states and 71759 transitions. Word has length 33 [2021-06-05 03:49:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:27,223 INFO L482 AbstractCegarLoop]: Abstraction has 13482 states and 71759 transitions. [2021-06-05 03:49:27,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:27,223 INFO L276 IsEmpty]: Start isEmpty. Operand 13482 states and 71759 transitions. [2021-06-05 03:49:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:27,248 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:27,248 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:27,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-06-05 03:49:27,248 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 03:49:27,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:27,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1255314043, now seen corresponding path program 242 times [2021-06-05 03:49:27,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:27,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115981873] [2021-06-05 03:49:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:27,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:27,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115981873] [2021-06-05 03:49:27,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115981873] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:27,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:27,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:27,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576782560] [2021-06-05 03:49:27,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:27,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:27,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:27,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:27,397 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 03:49:27,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:27,626 INFO L93 Difference]: Finished difference Result 32223 states and 161659 transitions. [2021-06-05 03:49:27,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:27,626 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:27,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:27,716 INFO L225 Difference]: With dead ends: 32223 [2021-06-05 03:49:27,716 INFO L226 Difference]: Without dead ends: 31352 [2021-06-05 03:49:27,717 INFO L777 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 03:49:28,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31352 states. [2021-06-05 03:49:28,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31352 to 13362. [2021-06-05 03:49:29,006 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 03:49:29,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 71207 transitions. [2021-06-05 03:49:29,052 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 71207 transitions. Word has length 33 [2021-06-05 03:49:29,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:29,052 INFO L482 AbstractCegarLoop]: Abstraction has 13362 states and 71207 transitions. [2021-06-05 03:49:29,052 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 03:49:29,053 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 71207 transitions. [2021-06-05 03:49:29,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:29,078 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:29,078 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:29,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-06-05 03:49:29,078 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 03:49:29,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:29,079 INFO L82 PathProgramCache]: Analyzing trace with hash -441461987, now seen corresponding path program 243 times [2021-06-05 03:49:29,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:29,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537565798] [2021-06-05 03:49:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:29,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:29,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:29,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537565798] [2021-06-05 03:49:29,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537565798] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:29,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:29,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:29,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318913140] [2021-06-05 03:49:29,248 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:29,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:29,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:29,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:29,248 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 03:49:29,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:29,490 INFO L93 Difference]: Finished difference Result 32442 states and 162706 transitions. [2021-06-05 03:49:29,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:29,491 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 03:49:29,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:29,836 INFO L225 Difference]: With dead ends: 32442 [2021-06-05 03:49:29,836 INFO L226 Difference]: Without dead ends: 31683 [2021-06-05 03:49:29,836 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 196.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:30,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31683 states. [2021-06-05 03:49:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31683 to 13550. [2021-06-05 03:49:30,893 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 03:49:30,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13550 states to 13550 states and 72031 transitions. [2021-06-05 03:49:30,937 INFO L78 Accepts]: Start accepts. Automaton has 13550 states and 72031 transitions. Word has length 33 [2021-06-05 03:49:30,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:30,937 INFO L482 AbstractCegarLoop]: Abstraction has 13550 states and 72031 transitions. [2021-06-05 03:49:30,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:30,937 INFO L276 IsEmpty]: Start isEmpty. Operand 13550 states and 72031 transitions. [2021-06-05 03:49:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:30,964 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:30,964 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:30,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-06-05 03:49:30,964 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 03:49:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:30,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1946618653, now seen corresponding path program 244 times [2021-06-05 03:49:30,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:30,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310699652] [2021-06-05 03:49:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:31,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:31,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310699652] [2021-06-05 03:49:31,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310699652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:31,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:31,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:31,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859024751] [2021-06-05 03:49:31,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:31,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:31,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:31,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:31,136 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 03:49:31,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:31,607 INFO L93 Difference]: Finished difference Result 32577 states and 163177 transitions. [2021-06-05 03:49:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:31,607 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:31,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:31,701 INFO L225 Difference]: With dead ends: 32577 [2021-06-05 03:49:31,702 INFO L226 Difference]: Without dead ends: 31495 [2021-06-05 03:49:31,702 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:32,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31495 states. [2021-06-05 03:49:32,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31495 to 13362. [2021-06-05 03:49:32,756 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 03:49:32,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13362 states to 13362 states and 71115 transitions. [2021-06-05 03:49:32,802 INFO L78 Accepts]: Start accepts. Automaton has 13362 states and 71115 transitions. Word has length 33 [2021-06-05 03:49:32,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:32,802 INFO L482 AbstractCegarLoop]: Abstraction has 13362 states and 71115 transitions. [2021-06-05 03:49:32,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:32,802 INFO L276 IsEmpty]: Start isEmpty. Operand 13362 states and 71115 transitions. [2021-06-05 03:49:32,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:32,983 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:32,983 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:32,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-06-05 03:49:32,983 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 03:49:32,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:32,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1298210053, now seen corresponding path program 245 times [2021-06-05 03:49:32,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:32,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019498717] [2021-06-05 03:49:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:33,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:33,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019498717] [2021-06-05 03:49:33,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019498717] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:33,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:33,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:33,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454020213] [2021-06-05 03:49:33,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:33,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:33,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:33,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:33,151 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 03:49:33,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:33,400 INFO L93 Difference]: Finished difference Result 32422 states and 162542 transitions. [2021-06-05 03:49:33,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:33,401 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:33,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:33,492 INFO L225 Difference]: With dead ends: 32422 [2021-06-05 03:49:33,492 INFO L226 Difference]: Without dead ends: 31671 [2021-06-05 03:49:33,493 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 193.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:34,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31671 states. [2021-06-05 03:49:34,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31671 to 13546. [2021-06-05 03:49:34,696 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 03:49:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13546 states to 13546 states and 71927 transitions. [2021-06-05 03:49:34,743 INFO L78 Accepts]: Start accepts. Automaton has 13546 states and 71927 transitions. Word has length 33 [2021-06-05 03:49:34,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:34,743 INFO L482 AbstractCegarLoop]: Abstraction has 13546 states and 71927 transitions. [2021-06-05 03:49:34,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:34,743 INFO L276 IsEmpty]: Start isEmpty. Operand 13546 states and 71927 transitions. [2021-06-05 03:49:34,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:34,771 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:34,771 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:34,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-06-05 03:49:34,771 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 03:49:34,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:34,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1915733411, now seen corresponding path program 246 times [2021-06-05 03:49:34,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:34,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240408411] [2021-06-05 03:49:34,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:34,939 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 03:49:34,940 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:34,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240408411] [2021-06-05 03:49:34,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240408411] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:34,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:34,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:34,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303436077] [2021-06-05 03:49:34,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:34,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:34,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:34,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:34,940 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 03:49:35,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:35,150 INFO L93 Difference]: Finished difference Result 32565 states and 163045 transitions. [2021-06-05 03:49:35,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:35,150 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:35,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:35,243 INFO L225 Difference]: With dead ends: 32565 [2021-06-05 03:49:35,243 INFO L226 Difference]: Without dead ends: 31395 [2021-06-05 03:49:35,244 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:35,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31395 states. [2021-06-05 03:49:36,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31395 to 13270. [2021-06-05 03:49:36,443 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 03:49:36,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 70709 transitions. [2021-06-05 03:49:36,486 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 70709 transitions. Word has length 33 [2021-06-05 03:49:36,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:36,486 INFO L482 AbstractCegarLoop]: Abstraction has 13270 states and 70709 transitions. [2021-06-05 03:49:36,486 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 03:49:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 70709 transitions. [2021-06-05 03:49:36,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:36,512 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:36,512 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:36,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-06-05 03:49:36,512 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 03:49:36,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:36,512 INFO L82 PathProgramCache]: Analyzing trace with hash -272900963, now seen corresponding path program 247 times [2021-06-05 03:49:36,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:36,512 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452523685] [2021-06-05 03:49:36,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:36,670 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:36,670 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452523685] [2021-06-05 03:49:36,670 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452523685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:36,670 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:36,670 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:36,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388992465] [2021-06-05 03:49:36,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:36,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:36,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:36,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:36,671 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 03:49:36,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:36,913 INFO L93 Difference]: Finished difference Result 31942 states and 160367 transitions. [2021-06-05 03:49:36,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:36,914 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 03:49:36,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:37,009 INFO L225 Difference]: With dead ends: 31942 [2021-06-05 03:49:37,010 INFO L226 Difference]: Without dead ends: 31183 [2021-06-05 03:49:37,010 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:37,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31183 states. [2021-06-05 03:49:38,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31183 to 13450. [2021-06-05 03:49:38,255 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 03:49:38,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13450 states to 13450 states and 71537 transitions. [2021-06-05 03:49:38,299 INFO L78 Accepts]: Start accepts. Automaton has 13450 states and 71537 transitions. Word has length 33 [2021-06-05 03:49:38,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:38,299 INFO L482 AbstractCegarLoop]: Abstraction has 13450 states and 71537 transitions. [2021-06-05 03:49:38,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:38,299 INFO L276 IsEmpty]: Start isEmpty. Operand 13450 states and 71537 transitions. [2021-06-05 03:49:38,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:38,324 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:38,324 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:38,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-06-05 03:49:38,324 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 03:49:38,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:38,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1119697925, now seen corresponding path program 248 times [2021-06-05 03:49:38,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:38,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468862640] [2021-06-05 03:49:38,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:38,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:38,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468862640] [2021-06-05 03:49:38,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468862640] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:38,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:38,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:38,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309380938] [2021-06-05 03:49:38,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:38,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:38,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:38,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:38,462 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 03:49:38,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:38,681 INFO L93 Difference]: Finished difference Result 31934 states and 160219 transitions. [2021-06-05 03:49:38,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:38,682 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 03:49:38,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:38,777 INFO L225 Difference]: With dead ends: 31934 [2021-06-05 03:49:38,777 INFO L226 Difference]: Without dead ends: 31063 [2021-06-05 03:49:38,777 INFO L777 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 03:49:39,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31063 states. [2021-06-05 03:49:40,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31063 to 13330. [2021-06-05 03:49:40,030 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 03:49:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 70985 transitions. [2021-06-05 03:49:40,074 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 70985 transitions. Word has length 33 [2021-06-05 03:49:40,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:40,074 INFO L482 AbstractCegarLoop]: Abstraction has 13330 states and 70985 transitions. [2021-06-05 03:49:40,074 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:40,074 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 70985 transitions. [2021-06-05 03:49:40,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:40,101 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:40,101 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:40,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-06-05 03:49:40,101 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 03:49:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:40,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2131566907, now seen corresponding path program 249 times [2021-06-05 03:49:40,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:40,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193121483] [2021-06-05 03:49:40,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:40,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:40,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:40,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193121483] [2021-06-05 03:49:40,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193121483] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:40,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:40,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:40,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827633978] [2021-06-05 03:49:40,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:40,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:40,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:40,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:40,246 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 03:49:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:40,688 INFO L93 Difference]: Finished difference Result 31960 states and 160368 transitions. [2021-06-05 03:49:40,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:40,688 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:40,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:40,793 INFO L225 Difference]: With dead ends: 31960 [2021-06-05 03:49:40,793 INFO L226 Difference]: Without dead ends: 31201 [2021-06-05 03:49:40,793 INFO L777 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 03:49:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31201 states. [2021-06-05 03:49:41,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31201 to 13454. [2021-06-05 03:49:41,841 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 03:49:41,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13454 states to 13454 states and 71489 transitions. [2021-06-05 03:49:41,887 INFO L78 Accepts]: Start accepts. Automaton has 13454 states and 71489 transitions. Word has length 33 [2021-06-05 03:49:41,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:41,887 INFO L482 AbstractCegarLoop]: Abstraction has 13454 states and 71489 transitions. [2021-06-05 03:49:41,887 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 03:49:41,888 INFO L276 IsEmpty]: Start isEmpty. Operand 13454 states and 71489 transitions. [2021-06-05 03:49:41,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:41,914 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:41,914 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:41,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-06-05 03:49:41,914 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 03:49:41,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:41,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1737660101, now seen corresponding path program 250 times [2021-06-05 03:49:41,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:41,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358960114] [2021-06-05 03:49:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:42,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:42,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:42,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358960114] [2021-06-05 03:49:42,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358960114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:42,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:42,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:42,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662799148] [2021-06-05 03:49:42,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:42,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:42,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:42,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:42,052 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 03:49:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:42,479 INFO L93 Difference]: Finished difference Result 31966 states and 160261 transitions. [2021-06-05 03:49:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:42,479 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:42,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:42,582 INFO L225 Difference]: With dead ends: 31966 [2021-06-05 03:49:42,583 INFO L226 Difference]: Without dead ends: 31077 [2021-06-05 03:49:42,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:43,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31077 states. [2021-06-05 03:49:43,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31077 to 13330. [2021-06-05 03:49:43,656 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 03:49:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 70925 transitions. [2021-06-05 03:49:43,929 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 70925 transitions. Word has length 33 [2021-06-05 03:49:43,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:43,929 INFO L482 AbstractCegarLoop]: Abstraction has 13330 states and 70925 transitions. [2021-06-05 03:49:43,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:43,929 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 70925 transitions. [2021-06-05 03:49:43,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:43,958 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:43,958 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:43,959 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-06-05 03:49:43,959 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 03:49:43,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:43,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1274818841, now seen corresponding path program 251 times [2021-06-05 03:49:43,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:43,959 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249599587] [2021-06-05 03:49:43,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:44,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:44,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249599587] [2021-06-05 03:49:44,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249599587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:44,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:44,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:44,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373854074] [2021-06-05 03:49:44,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:44,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:44,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:44,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:44,114 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 03:49:44,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:44,366 INFO L93 Difference]: Finished difference Result 31940 states and 160236 transitions. [2021-06-05 03:49:44,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:44,366 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 03:49:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:44,470 INFO L225 Difference]: With dead ends: 31940 [2021-06-05 03:49:44,470 INFO L226 Difference]: Without dead ends: 31189 [2021-06-05 03:49:44,470 INFO L777 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 03:49:45,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31189 states. [2021-06-05 03:49:45,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31189 to 13450. [2021-06-05 03:49:45,740 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 03:49:45,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13450 states to 13450 states and 71417 transitions. [2021-06-05 03:49:45,787 INFO L78 Accepts]: Start accepts. Automaton has 13450 states and 71417 transitions. Word has length 33 [2021-06-05 03:49:45,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:45,787 INFO L482 AbstractCegarLoop]: Abstraction has 13450 states and 71417 transitions. [2021-06-05 03:49:45,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:45,787 INFO L276 IsEmpty]: Start isEmpty. Operand 13450 states and 71417 transitions. [2021-06-05 03:49:45,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:45,816 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:45,816 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:45,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-06-05 03:49:45,816 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 03:49:45,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:45,816 INFO L82 PathProgramCache]: Analyzing trace with hash -35762181, now seen corresponding path program 252 times [2021-06-05 03:49:45,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:45,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378325970] [2021-06-05 03:49:45,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:45,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:45,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378325970] [2021-06-05 03:49:45,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378325970] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:45,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:45,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:45,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033402539] [2021-06-05 03:49:45,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:45,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:45,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:45,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:45,972 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 03:49:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:46,243 INFO L93 Difference]: Finished difference Result 31954 states and 160161 transitions. [2021-06-05 03:49:46,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:46,243 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:46,343 INFO L225 Difference]: With dead ends: 31954 [2021-06-05 03:49:46,343 INFO L226 Difference]: Without dead ends: 31009 [2021-06-05 03:49:46,344 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 182.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31009 states. [2021-06-05 03:49:47,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31009 to 13270. [2021-06-05 03:49:47,583 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 03:49:47,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 70679 transitions. [2021-06-05 03:49:47,629 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 70679 transitions. Word has length 33 [2021-06-05 03:49:47,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:47,629 INFO L482 AbstractCegarLoop]: Abstraction has 13270 states and 70679 transitions. [2021-06-05 03:49:47,629 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 03:49:47,629 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 70679 transitions. [2021-06-05 03:49:47,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:47,655 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:47,655 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:47,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-06-05 03:49:47,655 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 03:49:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:47,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1912748347, now seen corresponding path program 253 times [2021-06-05 03:49:47,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:47,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327221898] [2021-06-05 03:49:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:47,810 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:47,810 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327221898] [2021-06-05 03:49:47,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327221898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:47,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:47,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:47,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002448103] [2021-06-05 03:49:47,811 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:47,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:47,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:47,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:47,811 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 03:49:48,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:48,062 INFO L93 Difference]: Finished difference Result 32565 states and 163186 transitions. [2021-06-05 03:49:48,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:48,062 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:48,162 INFO L225 Difference]: With dead ends: 32565 [2021-06-05 03:49:48,162 INFO L226 Difference]: Without dead ends: 31806 [2021-06-05 03:49:48,163 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31806 states. [2021-06-05 03:49:49,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31806 to 13584. [2021-06-05 03:49:49,425 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 03:49:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13584 states to 13584 states and 72168 transitions. [2021-06-05 03:49:49,471 INFO L78 Accepts]: Start accepts. Automaton has 13584 states and 72168 transitions. Word has length 33 [2021-06-05 03:49:49,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:49,471 INFO L482 AbstractCegarLoop]: Abstraction has 13584 states and 72168 transitions. [2021-06-05 03:49:49,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:49,471 INFO L276 IsEmpty]: Start isEmpty. Operand 13584 states and 72168 transitions. [2021-06-05 03:49:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:49,498 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:49,498 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:49,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-06-05 03:49:49,498 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 03:49:49,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:49,499 INFO L82 PathProgramCache]: Analyzing trace with hash 5861691, now seen corresponding path program 254 times [2021-06-05 03:49:49,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:49,499 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335774805] [2021-06-05 03:49:49,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:49,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:49,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335774805] [2021-06-05 03:49:49,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335774805] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:49,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:49,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:49,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670934975] [2021-06-05 03:49:49,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:49,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:49,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:49,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:49,658 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 03:49:49,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:49,898 INFO L93 Difference]: Finished difference Result 32700 states and 163657 transitions. [2021-06-05 03:49:49,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:49,899 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:49,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:50,242 INFO L225 Difference]: With dead ends: 32700 [2021-06-05 03:49:50,243 INFO L226 Difference]: Without dead ends: 31618 [2021-06-05 03:49:50,243 INFO L777 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 03:49:50,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31618 states. [2021-06-05 03:49:51,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31618 to 13396. [2021-06-05 03:49:51,269 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 03:49:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13396 states to 13396 states and 71250 transitions. [2021-06-05 03:49:51,313 INFO L78 Accepts]: Start accepts. Automaton has 13396 states and 71250 transitions. Word has length 33 [2021-06-05 03:49:51,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:51,313 INFO L482 AbstractCegarLoop]: Abstraction has 13396 states and 71250 transitions. [2021-06-05 03:49:51,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:51,313 INFO L276 IsEmpty]: Start isEmpty. Operand 13396 states and 71250 transitions. [2021-06-05 03:49:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:51,339 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:51,339 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:51,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-06-05 03:49:51,339 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 03:49:51,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:51,339 INFO L82 PathProgramCache]: Analyzing trace with hash -672617187, now seen corresponding path program 255 times [2021-06-05 03:49:51,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:51,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466153676] [2021-06-05 03:49:51,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:51,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:51,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466153676] [2021-06-05 03:49:51,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466153676] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:51,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:51,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:51,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260211143] [2021-06-05 03:49:51,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:51,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:51,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:51,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:51,493 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 03:49:51,795 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-06-05 03:49:51,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:51,900 INFO L93 Difference]: Finished difference Result 32372 states and 162194 transitions. [2021-06-05 03:49:51,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:51,900 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:51,994 INFO L225 Difference]: With dead ends: 32372 [2021-06-05 03:49:51,994 INFO L226 Difference]: Without dead ends: 31613 [2021-06-05 03:49:51,995 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 370.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:52,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31613 states. [2021-06-05 03:49:53,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31613 to 13520. [2021-06-05 03:49:53,067 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 03:49:53,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13520 states to 13520 states and 71754 transitions. [2021-06-05 03:49:53,356 INFO L78 Accepts]: Start accepts. Automaton has 13520 states and 71754 transitions. Word has length 33 [2021-06-05 03:49:53,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:53,356 INFO L482 AbstractCegarLoop]: Abstraction has 13520 states and 71754 transitions. [2021-06-05 03:49:53,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:53,357 INFO L276 IsEmpty]: Start isEmpty. Operand 13520 states and 71754 transitions. [2021-06-05 03:49:53,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:53,392 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:53,392 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:53,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-06-05 03:49:53,392 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 03:49:53,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:53,392 INFO L82 PathProgramCache]: Analyzing trace with hash 2020053307, now seen corresponding path program 256 times [2021-06-05 03:49:53,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:53,392 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135790304] [2021-06-05 03:49:53,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:53,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:53,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135790304] [2021-06-05 03:49:53,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135790304] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:53,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:53,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:53,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124969872] [2021-06-05 03:49:53,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:53,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:53,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:53,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:53,534 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 03:49:53,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:53,780 INFO L93 Difference]: Finished difference Result 32378 states and 162087 transitions. [2021-06-05 03:49:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:53,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:49:53,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:53,883 INFO L225 Difference]: With dead ends: 32378 [2021-06-05 03:49:53,883 INFO L226 Difference]: Without dead ends: 31489 [2021-06-05 03:49:53,884 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:54,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31489 states. [2021-06-05 03:49:55,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31489 to 13396. [2021-06-05 03:49:55,151 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 03:49:55,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13396 states to 13396 states and 71188 transitions. [2021-06-05 03:49:55,199 INFO L78 Accepts]: Start accepts. Automaton has 13396 states and 71188 transitions. Word has length 33 [2021-06-05 03:49:55,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:55,199 INFO L482 AbstractCegarLoop]: Abstraction has 13396 states and 71188 transitions. [2021-06-05 03:49:55,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:55,199 INFO L276 IsEmpty]: Start isEmpty. Operand 13396 states and 71188 transitions. [2021-06-05 03:49:55,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:55,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:55,229 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:55,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-06-05 03:49:55,229 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 03:49:55,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:55,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1120385339, now seen corresponding path program 257 times [2021-06-05 03:49:55,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:55,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777804000] [2021-06-05 03:49:55,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:55,375 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 03:49:55,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:55,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777804000] [2021-06-05 03:49:55,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777804000] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:55,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:55,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:55,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260468220] [2021-06-05 03:49:55,375 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:55,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:55,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:55,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:55,376 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 03:49:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:55,598 INFO L93 Difference]: Finished difference Result 32773 states and 163908 transitions. [2021-06-05 03:49:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:55,598 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 03:49:55,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:55,705 INFO L225 Difference]: With dead ends: 32773 [2021-06-05 03:49:55,706 INFO L226 Difference]: Without dead ends: 31879 [2021-06-05 03:49:55,706 INFO L777 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 03:49:56,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31879 states. [2021-06-05 03:49:56,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31879 to 13651. [2021-06-05 03:49:56,957 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 03:49:57,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13651 states to 13651 states and 72211 transitions. [2021-06-05 03:49:57,004 INFO L78 Accepts]: Start accepts. Automaton has 13651 states and 72211 transitions. Word has length 33 [2021-06-05 03:49:57,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:57,004 INFO L482 AbstractCegarLoop]: Abstraction has 13651 states and 72211 transitions. [2021-06-05 03:49:57,004 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 03:49:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 13651 states and 72211 transitions. [2021-06-05 03:49:57,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:57,033 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:57,033 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:57,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-06-05 03:49:57,033 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 03:49:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:57,033 INFO L82 PathProgramCache]: Analyzing trace with hash 639483293, now seen corresponding path program 258 times [2021-06-05 03:49:57,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:57,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678018413] [2021-06-05 03:49:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:57,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:57,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:57,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678018413] [2021-06-05 03:49:57,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678018413] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:57,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:57,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:57,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548491483] [2021-06-05 03:49:57,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:57,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:57,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:57,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:57,175 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 03:49:57,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:57,431 INFO L93 Difference]: Finished difference Result 32644 states and 163139 transitions. [2021-06-05 03:49:57,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:57,432 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 03:49:57,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:57,534 INFO L225 Difference]: With dead ends: 32644 [2021-06-05 03:49:57,534 INFO L226 Difference]: Without dead ends: 31498 [2021-06-05 03:49:57,534 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:49:58,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31498 states. [2021-06-05 03:49:58,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31498 to 13270. [2021-06-05 03:49:58,783 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 03:49:58,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 70617 transitions. [2021-06-05 03:49:58,827 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 70617 transitions. Word has length 33 [2021-06-05 03:49:58,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:58,827 INFO L482 AbstractCegarLoop]: Abstraction has 13270 states and 70617 transitions. [2021-06-05 03:49:58,827 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 03:49:58,827 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 70617 transitions. [2021-06-05 03:49:58,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:49:58,853 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:58,853 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:58,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-06-05 03:49:58,853 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 03:49:58,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:58,853 INFO L82 PathProgramCache]: Analyzing trace with hash 82923929, now seen corresponding path program 259 times [2021-06-05 03:49:58,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:58,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636898942] [2021-06-05 03:49:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:59,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:59,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:59,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636898942] [2021-06-05 03:49:59,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636898942] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:59,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:59,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:49:59,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93669681] [2021-06-05 03:49:59,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:49:59,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:59,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:49:59,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:59,018 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 03:49:59,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:59,248 INFO L93 Difference]: Finished difference Result 32527 states and 162983 transitions. [2021-06-05 03:49:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:49:59,248 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 03:49:59,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:59,343 INFO L225 Difference]: With dead ends: 32527 [2021-06-05 03:49:59,343 INFO L226 Difference]: Without dead ends: 31776 [2021-06-05 03:49:59,343 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:00,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31776 states. [2021-06-05 03:50:00,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31776 to 13578. [2021-06-05 03:50:00,625 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 03:50:00,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13578 states to 13578 states and 72085 transitions. [2021-06-05 03:50:00,670 INFO L78 Accepts]: Start accepts. Automaton has 13578 states and 72085 transitions. Word has length 33 [2021-06-05 03:50:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:00,670 INFO L482 AbstractCegarLoop]: Abstraction has 13578 states and 72085 transitions. [2021-06-05 03:50:00,670 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 03:50:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 13578 states and 72085 transitions. [2021-06-05 03:50:00,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:00,697 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:00,697 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:00,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-06-05 03:50:00,697 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 03:50:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:00,698 INFO L82 PathProgramCache]: Analyzing trace with hash -534599429, now seen corresponding path program 260 times [2021-06-05 03:50:00,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:00,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180260573] [2021-06-05 03:50:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:00,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:00,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:00,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180260573] [2021-06-05 03:50:00,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180260573] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:00,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:00,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:00,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025558993] [2021-06-05 03:50:00,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:00,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:00,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:00,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:00,866 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 03:50:01,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:01,247 INFO L93 Difference]: Finished difference Result 32670 states and 163486 transitions. [2021-06-05 03:50:01,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:01,247 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:01,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:01,347 INFO L225 Difference]: With dead ends: 32670 [2021-06-05 03:50:01,347 INFO L226 Difference]: Without dead ends: 31592 [2021-06-05 03:50:01,347 INFO L777 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 03:50:02,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31592 states. [2021-06-05 03:50:02,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31592 to 13394. [2021-06-05 03:50:02,418 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 03:50:02,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13394 states to 13394 states and 71181 transitions. [2021-06-05 03:50:02,465 INFO L78 Accepts]: Start accepts. Automaton has 13394 states and 71181 transitions. Word has length 33 [2021-06-05 03:50:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:02,465 INFO L482 AbstractCegarLoop]: Abstraction has 13394 states and 71181 transitions. [2021-06-05 03:50:02,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:02,466 INFO L276 IsEmpty]: Start isEmpty. Operand 13394 states and 71181 transitions. [2021-06-05 03:50:02,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:02,494 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:02,494 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:02,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-06-05 03:50:02,494 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 03:50:02,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:02,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1792525691, now seen corresponding path program 261 times [2021-06-05 03:50:02,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:02,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800248969] [2021-06-05 03:50:02,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:02,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:02,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800248969] [2021-06-05 03:50:02,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800248969] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:02,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:02,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:02,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253678681] [2021-06-05 03:50:02,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:02,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:02,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:02,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:02,801 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 03:50:03,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:03,035 INFO L93 Difference]: Finished difference Result 32334 states and 161993 transitions. [2021-06-05 03:50:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:03,035 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 03:50:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:03,131 INFO L225 Difference]: With dead ends: 32334 [2021-06-05 03:50:03,131 INFO L226 Difference]: Without dead ends: 31583 [2021-06-05 03:50:03,131 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 192.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:03,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31583 states. [2021-06-05 03:50:04,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31583 to 13514. [2021-06-05 03:50:04,345 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 03:50:04,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13514 states to 13514 states and 71673 transitions. [2021-06-05 03:50:04,394 INFO L78 Accepts]: Start accepts. Automaton has 13514 states and 71673 transitions. Word has length 33 [2021-06-05 03:50:04,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:04,394 INFO L482 AbstractCegarLoop]: Abstraction has 13514 states and 71673 transitions. [2021-06-05 03:50:04,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:04,394 INFO L276 IsEmpty]: Start isEmpty. Operand 13514 states and 71673 transitions. [2021-06-05 03:50:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:04,424 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:04,424 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:04,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-06-05 03:50:04,424 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 03:50:04,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:04,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1546092421, now seen corresponding path program 262 times [2021-06-05 03:50:04,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:04,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3761627] [2021-06-05 03:50:04,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:04,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:04,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:04,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3761627] [2021-06-05 03:50:04,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3761627] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:04,599 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:04,599 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:04,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205247649] [2021-06-05 03:50:04,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:04,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:04,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:04,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:04,599 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 03:50:04,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:04,842 INFO L93 Difference]: Finished difference Result 32348 states and 161918 transitions. [2021-06-05 03:50:04,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:04,842 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 03:50:04,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:04,938 INFO L225 Difference]: With dead ends: 32348 [2021-06-05 03:50:04,939 INFO L226 Difference]: Without dead ends: 31463 [2021-06-05 03:50:04,939 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:05,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31463 states. [2021-06-05 03:50:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31463 to 13394. [2021-06-05 03:50:06,326 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 03:50:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13394 states to 13394 states and 71121 transitions. [2021-06-05 03:50:06,393 INFO L78 Accepts]: Start accepts. Automaton has 13394 states and 71121 transitions. Word has length 33 [2021-06-05 03:50:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:06,393 INFO L482 AbstractCegarLoop]: Abstraction has 13394 states and 71121 transitions. [2021-06-05 03:50:06,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 13394 states and 71121 transitions. [2021-06-05 03:50:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:06,431 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:06,431 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:06,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-06-05 03:50:06,431 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 03:50:06,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:06,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1577543843, now seen corresponding path program 263 times [2021-06-05 03:50:06,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:06,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619648449] [2021-06-05 03:50:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:06,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:06,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619648449] [2021-06-05 03:50:06,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619648449] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:06,645 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:06,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:06,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81806754] [2021-06-05 03:50:06,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:06,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:06,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:06,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:06,645 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 03:50:06,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:06,955 INFO L93 Difference]: Finished difference Result 32755 states and 163781 transitions. [2021-06-05 03:50:06,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:06,956 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:06,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:07,054 INFO L225 Difference]: With dead ends: 32755 [2021-06-05 03:50:07,054 INFO L226 Difference]: Without dead ends: 31861 [2021-06-05 03:50:07,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 216.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:08,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31861 states. [2021-06-05 03:50:08,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31861 to 13649. [2021-06-05 03:50:08,381 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 03:50:08,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13649 states to 13649 states and 72144 transitions. [2021-06-05 03:50:08,427 INFO L78 Accepts]: Start accepts. Automaton has 13649 states and 72144 transitions. Word has length 33 [2021-06-05 03:50:08,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:08,427 INFO L482 AbstractCegarLoop]: Abstraction has 13649 states and 72144 transitions. [2021-06-05 03:50:08,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:08,428 INFO L276 IsEmpty]: Start isEmpty. Operand 13649 states and 72144 transitions. [2021-06-05 03:50:08,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:08,455 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:08,456 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:08,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-06-05 03:50:08,456 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 03:50:08,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:08,456 INFO L82 PathProgramCache]: Analyzing trace with hash 694361915, now seen corresponding path program 264 times [2021-06-05 03:50:08,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:08,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276076669] [2021-06-05 03:50:08,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:08,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:08,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276076669] [2021-06-05 03:50:08,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276076669] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:08,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:08,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:08,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296371252] [2021-06-05 03:50:08,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:08,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:08,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:08,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:08,607 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 03:50:08,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:08,838 INFO L93 Difference]: Finished difference Result 32626 states and 163012 transitions. [2021-06-05 03:50:08,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:08,838 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:08,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:08,935 INFO L225 Difference]: With dead ends: 32626 [2021-06-05 03:50:08,935 INFO L226 Difference]: Without dead ends: 31420 [2021-06-05 03:50:08,935 INFO L777 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 03:50:10,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31420 states. [2021-06-05 03:50:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31420 to 13208. [2021-06-05 03:50:10,361 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 03:50:10,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70365 transitions. [2021-06-05 03:50:10,405 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70365 transitions. Word has length 33 [2021-06-05 03:50:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:10,405 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70365 transitions. [2021-06-05 03:50:10,405 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 03:50:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70365 transitions. [2021-06-05 03:50:10,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:10,432 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:10,432 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:10,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-06-05 03:50:10,432 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 03:50:10,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:10,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1776528261, now seen corresponding path program 265 times [2021-06-05 03:50:10,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:10,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604097892] [2021-06-05 03:50:10,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:10,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:10,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:10,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604097892] [2021-06-05 03:50:10,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604097892] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:10,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:10,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:10,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969497317] [2021-06-05 03:50:10,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:10,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:10,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:10,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:10,601 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 03:50:11,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:11,133 INFO L93 Difference]: Finished difference Result 32084 states and 161144 transitions. [2021-06-05 03:50:11,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:11,133 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 03:50:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:11,235 INFO L225 Difference]: With dead ends: 32084 [2021-06-05 03:50:11,236 INFO L226 Difference]: Without dead ends: 31325 [2021-06-05 03:50:11,236 INFO L777 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 03:50:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31325 states. [2021-06-05 03:50:12,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31325 to 13466. [2021-06-05 03:50:12,275 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 03:50:12,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71648 transitions. [2021-06-05 03:50:12,319 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71648 transitions. Word has length 33 [2021-06-05 03:50:12,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:12,319 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71648 transitions. [2021-06-05 03:50:12,319 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 03:50:12,319 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71648 transitions. [2021-06-05 03:50:12,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:12,345 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:12,345 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:12,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-06-05 03:50:12,345 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 03:50:12,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:12,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1671642073, now seen corresponding path program 266 times [2021-06-05 03:50:12,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:12,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848963872] [2021-06-05 03:50:12,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:12,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:12,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:12,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848963872] [2021-06-05 03:50:12,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848963872] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:12,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:12,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:12,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368409578] [2021-06-05 03:50:12,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:12,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:12,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:12,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:12,505 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 03:50:12,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:12,886 INFO L93 Difference]: Finished difference Result 32076 states and 160996 transitions. [2021-06-05 03:50:12,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:12,887 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:12,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:12,992 INFO L225 Difference]: With dead ends: 32076 [2021-06-05 03:50:12,992 INFO L226 Difference]: Without dead ends: 31205 [2021-06-05 03:50:12,992 INFO L777 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 03:50:13,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31205 states. [2021-06-05 03:50:14,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31205 to 13346. [2021-06-05 03:50:14,054 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 03:50:14,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 71096 transitions. [2021-06-05 03:50:14,321 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 71096 transitions. Word has length 33 [2021-06-05 03:50:14,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:14,321 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 71096 transitions. [2021-06-05 03:50:14,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:14,321 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 71096 transitions. [2021-06-05 03:50:14,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:14,348 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:14,348 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:14,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-06-05 03:50:14,349 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 03:50:14,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:14,349 INFO L82 PathProgramCache]: Analyzing trace with hash -25133957, now seen corresponding path program 267 times [2021-06-05 03:50:14,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:14,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160499121] [2021-06-05 03:50:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:14,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:14,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:14,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160499121] [2021-06-05 03:50:14,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160499121] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:14,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:14,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:14,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111762000] [2021-06-05 03:50:14,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:14,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:14,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:14,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:14,517 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 03:50:14,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:14,794 INFO L93 Difference]: Finished difference Result 32295 states and 162043 transitions. [2021-06-05 03:50:14,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:14,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:14,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:14,892 INFO L225 Difference]: With dead ends: 32295 [2021-06-05 03:50:14,892 INFO L226 Difference]: Without dead ends: 31536 [2021-06-05 03:50:14,892 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:15,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31536 states. [2021-06-05 03:50:16,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31536 to 13534. [2021-06-05 03:50:16,164 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 03:50:16,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13534 states to 13534 states and 71920 transitions. [2021-06-05 03:50:16,207 INFO L78 Accepts]: Start accepts. Automaton has 13534 states and 71920 transitions. Word has length 33 [2021-06-05 03:50:16,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:16,207 INFO L482 AbstractCegarLoop]: Abstraction has 13534 states and 71920 transitions. [2021-06-05 03:50:16,207 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 03:50:16,207 INFO L276 IsEmpty]: Start isEmpty. Operand 13534 states and 71920 transitions. [2021-06-05 03:50:16,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:16,233 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:16,233 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:16,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-06-05 03:50:16,233 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 03:50:16,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:16,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1932020613, now seen corresponding path program 268 times [2021-06-05 03:50:16,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:16,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154036142] [2021-06-05 03:50:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:16,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:16,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154036142] [2021-06-05 03:50:16,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154036142] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:16,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:16,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:16,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428232401] [2021-06-05 03:50:16,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:16,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:16,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:16,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:16,405 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 03:50:16,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:16,613 INFO L93 Difference]: Finished difference Result 32430 states and 162514 transitions. [2021-06-05 03:50:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:16,614 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:16,709 INFO L225 Difference]: With dead ends: 32430 [2021-06-05 03:50:16,709 INFO L226 Difference]: Without dead ends: 31348 [2021-06-05 03:50:16,709 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 176.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:17,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31348 states. [2021-06-05 03:50:17,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31348 to 13346. [2021-06-05 03:50:17,957 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 03:50:17,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 71004 transitions. [2021-06-05 03:50:18,000 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 71004 transitions. Word has length 33 [2021-06-05 03:50:18,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:18,000 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 71004 transitions. [2021-06-05 03:50:18,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:18,000 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 71004 transitions. [2021-06-05 03:50:18,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:18,025 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:18,025 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:18,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-06-05 03:50:18,025 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 03:50:18,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:18,026 INFO L82 PathProgramCache]: Analyzing trace with hash -881882023, now seen corresponding path program 269 times [2021-06-05 03:50:18,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:18,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252213473] [2021-06-05 03:50:18,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:18,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:18,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:18,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252213473] [2021-06-05 03:50:18,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252213473] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:18,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:18,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:18,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657845101] [2021-06-05 03:50:18,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:18,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:18,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:18,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:18,193 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 03:50:18,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:18,444 INFO L93 Difference]: Finished difference Result 32275 states and 161879 transitions. [2021-06-05 03:50:18,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:18,444 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 03:50:18,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:18,535 INFO L225 Difference]: With dead ends: 32275 [2021-06-05 03:50:18,535 INFO L226 Difference]: Without dead ends: 31524 [2021-06-05 03:50:18,535 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 194.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31524 states. [2021-06-05 03:50:19,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31524 to 13530. [2021-06-05 03:50:19,799 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 03:50:19,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 71816 transitions. [2021-06-05 03:50:19,843 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 71816 transitions. Word has length 33 [2021-06-05 03:50:19,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:19,844 INFO L482 AbstractCegarLoop]: Abstraction has 13530 states and 71816 transitions. [2021-06-05 03:50:19,844 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 03:50:19,844 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 71816 transitions. [2021-06-05 03:50:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:19,870 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:19,870 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:19,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-06-05 03:50:19,870 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 03:50:19,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:19,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1499405381, now seen corresponding path program 270 times [2021-06-05 03:50:19,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:19,871 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048656673] [2021-06-05 03:50:19,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:20,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:20,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048656673] [2021-06-05 03:50:20,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048656673] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:20,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:20,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:20,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394271675] [2021-06-05 03:50:20,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:20,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:20,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:20,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:20,039 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 03:50:20,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:20,260 INFO L93 Difference]: Finished difference Result 32418 states and 162382 transitions. [2021-06-05 03:50:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:20,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:20,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:20,601 INFO L225 Difference]: With dead ends: 32418 [2021-06-05 03:50:20,601 INFO L226 Difference]: Without dead ends: 31248 [2021-06-05 03:50:20,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 175.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:21,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31248 states. [2021-06-05 03:50:21,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31248 to 13254. [2021-06-05 03:50:21,656 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 03:50:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 70598 transitions. [2021-06-05 03:50:21,701 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 70598 transitions. Word has length 33 [2021-06-05 03:50:21,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:21,701 INFO L482 AbstractCegarLoop]: Abstraction has 13254 states and 70598 transitions. [2021-06-05 03:50:21,701 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 03:50:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 70598 transitions. [2021-06-05 03:50:21,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:21,728 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:21,728 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:21,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-06-05 03:50:21,728 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 03:50:21,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:21,728 INFO L82 PathProgramCache]: Analyzing trace with hash -343819107, now seen corresponding path program 271 times [2021-06-05 03:50:21,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:21,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981061834] [2021-06-05 03:50:21,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:21,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:21,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981061834] [2021-06-05 03:50:21,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981061834] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:21,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:21,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:21,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622665951] [2021-06-05 03:50:21,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:21,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:21,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:21,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:21,868 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 03:50:22,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:22,316 INFO L93 Difference]: Finished difference Result 31793 states and 159699 transitions. [2021-06-05 03:50:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:22,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:22,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:22,423 INFO L225 Difference]: With dead ends: 31793 [2021-06-05 03:50:22,423 INFO L226 Difference]: Without dead ends: 31034 [2021-06-05 03:50:22,423 INFO L777 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 03:50:23,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31034 states. [2021-06-05 03:50:23,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31034 to 13434. [2021-06-05 03:50:23,490 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 03:50:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13434 states to 13434 states and 71426 transitions. [2021-06-05 03:50:23,778 INFO L78 Accepts]: Start accepts. Automaton has 13434 states and 71426 transitions. Word has length 33 [2021-06-05 03:50:23,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:23,778 INFO L482 AbstractCegarLoop]: Abstraction has 13434 states and 71426 transitions. [2021-06-05 03:50:23,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand 13434 states and 71426 transitions. [2021-06-05 03:50:23,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:23,806 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:23,806 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:23,806 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-06-05 03:50:23,806 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 03:50:23,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:23,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1190616069, now seen corresponding path program 272 times [2021-06-05 03:50:23,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:23,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799178238] [2021-06-05 03:50:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:23,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:23,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799178238] [2021-06-05 03:50:23,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799178238] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:23,945 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:23,945 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:23,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430909436] [2021-06-05 03:50:23,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:23,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:23,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:23,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:23,945 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 03:50:24,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:24,227 INFO L93 Difference]: Finished difference Result 31785 states and 159551 transitions. [2021-06-05 03:50:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:24,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:24,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:24,326 INFO L225 Difference]: With dead ends: 31785 [2021-06-05 03:50:24,327 INFO L226 Difference]: Without dead ends: 30914 [2021-06-05 03:50:24,327 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30914 states. [2021-06-05 03:50:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30914 to 13314. [2021-06-05 03:50:25,558 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 03:50:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13314 states to 13314 states and 70874 transitions. [2021-06-05 03:50:25,604 INFO L78 Accepts]: Start accepts. Automaton has 13314 states and 70874 transitions. Word has length 33 [2021-06-05 03:50:25,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:25,604 INFO L482 AbstractCegarLoop]: Abstraction has 13314 states and 70874 transitions. [2021-06-05 03:50:25,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 13314 states and 70874 transitions. [2021-06-05 03:50:25,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:25,630 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:25,630 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:25,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-06-05 03:50:25,630 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 03:50:25,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:25,631 INFO L82 PathProgramCache]: Analyzing trace with hash 769137083, now seen corresponding path program 273 times [2021-06-05 03:50:25,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:25,631 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39414134] [2021-06-05 03:50:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:25,769 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 03:50:25,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:25,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39414134] [2021-06-05 03:50:25,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39414134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:25,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:25,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:25,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135091604] [2021-06-05 03:50:25,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:25,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:25,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:25,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:25,770 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 03:50:25,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:25,997 INFO L93 Difference]: Finished difference Result 31809 states and 159695 transitions. [2021-06-05 03:50:25,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:25,997 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 03:50:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:26,090 INFO L225 Difference]: With dead ends: 31809 [2021-06-05 03:50:26,091 INFO L226 Difference]: Without dead ends: 31050 [2021-06-05 03:50:26,091 INFO L777 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 03:50:27,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31050 states. [2021-06-05 03:50:27,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31050 to 13438. [2021-06-05 03:50:27,328 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 03:50:27,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13438 states to 13438 states and 71378 transitions. [2021-06-05 03:50:27,373 INFO L78 Accepts]: Start accepts. Automaton has 13438 states and 71378 transitions. Word has length 33 [2021-06-05 03:50:27,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:27,373 INFO L482 AbstractCegarLoop]: Abstraction has 13438 states and 71378 transitions. [2021-06-05 03:50:27,373 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 03:50:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 13438 states and 71378 transitions. [2021-06-05 03:50:27,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:27,399 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:27,399 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:27,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-06-05 03:50:27,400 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 03:50:27,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:27,400 INFO L82 PathProgramCache]: Analyzing trace with hash -767462981, now seen corresponding path program 274 times [2021-06-05 03:50:27,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:27,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738734477] [2021-06-05 03:50:27,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:27,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:27,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738734477] [2021-06-05 03:50:27,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738734477] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:27,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:27,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:27,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393622848] [2021-06-05 03:50:27,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:27,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:27,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:27,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:27,549 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 03:50:27,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:27,773 INFO L93 Difference]: Finished difference Result 31813 states and 159583 transitions. [2021-06-05 03:50:27,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:27,773 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:27,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:27,864 INFO L225 Difference]: With dead ends: 31813 [2021-06-05 03:50:27,864 INFO L226 Difference]: Without dead ends: 30926 [2021-06-05 03:50:27,864 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 171.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:28,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30926 states. [2021-06-05 03:50:29,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30926 to 13314. [2021-06-05 03:50:29,119 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 03:50:29,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13314 states to 13314 states and 70814 transitions. [2021-06-05 03:50:29,164 INFO L78 Accepts]: Start accepts. Automaton has 13314 states and 70814 transitions. Word has length 33 [2021-06-05 03:50:29,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:29,164 INFO L482 AbstractCegarLoop]: Abstraction has 13314 states and 70814 transitions. [2021-06-05 03:50:29,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:29,164 INFO L276 IsEmpty]: Start isEmpty. Operand 13314 states and 70814 transitions. [2021-06-05 03:50:29,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:29,190 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:29,190 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:29,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-06-05 03:50:29,190 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 03:50:29,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:29,191 INFO L82 PathProgramCache]: Analyzing trace with hash -87610983, now seen corresponding path program 275 times [2021-06-05 03:50:29,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:29,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400869717] [2021-06-05 03:50:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:29,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:29,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:29,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400869717] [2021-06-05 03:50:29,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400869717] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:29,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:29,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:29,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756559246] [2021-06-05 03:50:29,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:29,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:29,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:29,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:29,326 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 03:50:29,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:29,572 INFO L93 Difference]: Finished difference Result 31789 states and 159563 transitions. [2021-06-05 03:50:29,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:29,572 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:29,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:29,662 INFO L225 Difference]: With dead ends: 31789 [2021-06-05 03:50:29,662 INFO L226 Difference]: Without dead ends: 31038 [2021-06-05 03:50:29,662 INFO L777 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 03:50:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31038 states. [2021-06-05 03:50:30,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31038 to 13434. [2021-06-05 03:50:30,930 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 03:50:30,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13434 states to 13434 states and 71306 transitions. [2021-06-05 03:50:30,974 INFO L78 Accepts]: Start accepts. Automaton has 13434 states and 71306 transitions. Word has length 33 [2021-06-05 03:50:30,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:30,974 INFO L482 AbstractCegarLoop]: Abstraction has 13434 states and 71306 transitions. [2021-06-05 03:50:30,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:30,974 INFO L276 IsEmpty]: Start isEmpty. Operand 13434 states and 71306 transitions. [2021-06-05 03:50:30,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:30,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:30,999 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:30,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-06-05 03:50:30,999 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 03:50:30,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:31,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2091249669, now seen corresponding path program 276 times [2021-06-05 03:50:31,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:31,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089919869] [2021-06-05 03:50:31,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:31,134 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 03:50:31,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:31,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089919869] [2021-06-05 03:50:31,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089919869] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:31,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:31,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:31,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979732398] [2021-06-05 03:50:31,135 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:31,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:31,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:31,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:31,135 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 03:50:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:31,562 INFO L93 Difference]: Finished difference Result 31801 states and 159483 transitions. [2021-06-05 03:50:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:31,563 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 03:50:31,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:31,660 INFO L225 Difference]: With dead ends: 31801 [2021-06-05 03:50:31,661 INFO L226 Difference]: Without dead ends: 30858 [2021-06-05 03:50:31,661 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:32,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30858 states. [2021-06-05 03:50:32,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30858 to 13254. [2021-06-05 03:50:32,703 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 03:50:32,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 70568 transitions. [2021-06-05 03:50:32,748 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 70568 transitions. Word has length 33 [2021-06-05 03:50:32,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:32,748 INFO L482 AbstractCegarLoop]: Abstraction has 13254 states and 70568 transitions. [2021-06-05 03:50:32,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:32,748 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 70568 transitions. [2021-06-05 03:50:32,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:32,775 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:32,775 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:32,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-06-05 03:50:32,775 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 03:50:32,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:32,775 INFO L82 PathProgramCache]: Analyzing trace with hash 868753851, now seen corresponding path program 277 times [2021-06-05 03:50:32,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:32,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826675074] [2021-06-05 03:50:32,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:33,070 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 03:50:33,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:33,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826675074] [2021-06-05 03:50:33,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826675074] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:33,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:33,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:33,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612693751] [2021-06-05 03:50:33,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:33,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:33,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:33,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:33,071 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 03:50:33,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:33,317 INFO L93 Difference]: Finished difference Result 32319 states and 162115 transitions. [2021-06-05 03:50:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:33,415 INFO L225 Difference]: With dead ends: 32319 [2021-06-05 03:50:33,415 INFO L226 Difference]: Without dead ends: 31560 [2021-06-05 03:50:33,415 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 183.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:34,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31560 states. [2021-06-05 03:50:34,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31560 to 13536. [2021-06-05 03:50:34,677 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 03:50:34,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13536 states to 13536 states and 71913 transitions. [2021-06-05 03:50:34,722 INFO L78 Accepts]: Start accepts. Automaton has 13536 states and 71913 transitions. Word has length 33 [2021-06-05 03:50:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:34,722 INFO L482 AbstractCegarLoop]: Abstraction has 13536 states and 71913 transitions. [2021-06-05 03:50:34,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:34,722 INFO L276 IsEmpty]: Start isEmpty. Operand 13536 states and 71913 transitions. [2021-06-05 03:50:34,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:34,749 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:34,749 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:34,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-06-05 03:50:34,749 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 03:50:34,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:34,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1038132805, now seen corresponding path program 278 times [2021-06-05 03:50:34,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:34,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845938908] [2021-06-05 03:50:34,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:34,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:34,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845938908] [2021-06-05 03:50:34,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845938908] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:34,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:34,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:34,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314202581] [2021-06-05 03:50:34,908 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:34,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:34,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:34,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:34,908 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 03:50:35,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:35,126 INFO L93 Difference]: Finished difference Result 32454 states and 162586 transitions. [2021-06-05 03:50:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:35,126 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:35,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:35,224 INFO L225 Difference]: With dead ends: 32454 [2021-06-05 03:50:35,224 INFO L226 Difference]: Without dead ends: 31372 [2021-06-05 03:50:35,224 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:35,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31372 states. [2021-06-05 03:50:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31372 to 13348. [2021-06-05 03:50:36,484 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 03:50:36,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 70995 transitions. [2021-06-05 03:50:36,533 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 70995 transitions. Word has length 33 [2021-06-05 03:50:36,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:36,533 INFO L482 AbstractCegarLoop]: Abstraction has 13348 states and 70995 transitions. [2021-06-05 03:50:36,533 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 03:50:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 70995 transitions. [2021-06-05 03:50:36,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:36,561 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:36,561 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:36,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-06-05 03:50:36,561 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 03:50:36,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:36,561 INFO L82 PathProgramCache]: Analyzing trace with hash -2025095907, now seen corresponding path program 279 times [2021-06-05 03:50:36,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:36,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275646892] [2021-06-05 03:50:36,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:36,699 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 03:50:36,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:36,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275646892] [2021-06-05 03:50:36,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275646892] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:36,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:36,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:36,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294219470] [2021-06-05 03:50:36,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:36,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:36,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:36,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:36,700 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 03:50:36,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:36,942 INFO L93 Difference]: Finished difference Result 32124 states and 161118 transitions. [2021-06-05 03:50:36,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:36,943 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:36,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:37,038 INFO L225 Difference]: With dead ends: 32124 [2021-06-05 03:50:37,038 INFO L226 Difference]: Without dead ends: 31365 [2021-06-05 03:50:37,038 INFO L777 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 03:50:37,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31365 states. [2021-06-05 03:50:38,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31365 to 13472. [2021-06-05 03:50:38,311 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 03:50:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13472 states to 13472 states and 71499 transitions. [2021-06-05 03:50:38,356 INFO L78 Accepts]: Start accepts. Automaton has 13472 states and 71499 transitions. Word has length 33 [2021-06-05 03:50:38,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:38,356 INFO L482 AbstractCegarLoop]: Abstraction has 13472 states and 71499 transitions. [2021-06-05 03:50:38,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:38,356 INFO L276 IsEmpty]: Start isEmpty. Operand 13472 states and 71499 transitions. [2021-06-05 03:50:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:38,384 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:38,384 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:38,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-06-05 03:50:38,385 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 03:50:38,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:38,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1304716869, now seen corresponding path program 280 times [2021-06-05 03:50:38,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:38,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918640731] [2021-06-05 03:50:38,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:38,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:38,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:38,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918640731] [2021-06-05 03:50:38,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918640731] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:38,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:38,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:38,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228151605] [2021-06-05 03:50:38,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:38,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:38,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:38,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:38,526 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 03:50:38,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:38,773 INFO L93 Difference]: Finished difference Result 32128 states and 161006 transitions. [2021-06-05 03:50:38,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:38,774 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 03:50:38,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:38,869 INFO L225 Difference]: With dead ends: 32128 [2021-06-05 03:50:38,869 INFO L226 Difference]: Without dead ends: 31241 [2021-06-05 03:50:38,869 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31241 states. [2021-06-05 03:50:40,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31241 to 13348. [2021-06-05 03:50:40,111 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 03:50:40,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 70933 transitions. [2021-06-05 03:50:40,154 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 70933 transitions. Word has length 33 [2021-06-05 03:50:40,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:40,154 INFO L482 AbstractCegarLoop]: Abstraction has 13348 states and 70933 transitions. [2021-06-05 03:50:40,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:40,155 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 70933 transitions. [2021-06-05 03:50:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:40,179 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:40,179 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:40,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-06-05 03:50:40,180 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 03:50:40,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:40,180 INFO L82 PathProgramCache]: Analyzing trace with hash -242044485, now seen corresponding path program 281 times [2021-06-05 03:50:40,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:40,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778896558] [2021-06-05 03:50:40,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:40,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:40,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778896558] [2021-06-05 03:50:40,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778896558] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:40,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:40,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:40,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840801014] [2021-06-05 03:50:40,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:40,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:40,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:40,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:40,321 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 03:50:40,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:40,569 INFO L93 Difference]: Finished difference Result 32460 states and 162573 transitions. [2021-06-05 03:50:40,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:40,569 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 03:50:40,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:40,900 INFO L225 Difference]: With dead ends: 32460 [2021-06-05 03:50:40,900 INFO L226 Difference]: Without dead ends: 31566 [2021-06-05 03:50:40,901 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 148.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:41,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31566 states. [2021-06-05 03:50:41,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31566 to 13538. [2021-06-05 03:50:41,920 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 03:50:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13538 states to 13538 states and 71698 transitions. [2021-06-05 03:50:41,963 INFO L78 Accepts]: Start accepts. Automaton has 13538 states and 71698 transitions. Word has length 33 [2021-06-05 03:50:41,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:41,964 INFO L482 AbstractCegarLoop]: Abstraction has 13538 states and 71698 transitions. [2021-06-05 03:50:41,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 13538 states and 71698 transitions. [2021-06-05 03:50:41,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:41,989 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:41,989 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:41,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-06-05 03:50:41,989 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 03:50:41,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:41,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1416004195, now seen corresponding path program 282 times [2021-06-05 03:50:41,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:41,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173679003] [2021-06-05 03:50:41,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:42,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:42,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173679003] [2021-06-05 03:50:42,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173679003] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:42,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:42,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:42,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954534125] [2021-06-05 03:50:42,124 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:42,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:42,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:42,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:42,125 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 03:50:42,416 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-06-05 03:50:42,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:42,522 INFO L93 Difference]: Finished difference Result 32329 states and 161800 transitions. [2021-06-05 03:50:42,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:42,523 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:42,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:42,622 INFO L225 Difference]: With dead ends: 32329 [2021-06-05 03:50:42,622 INFO L226 Difference]: Without dead ends: 31282 [2021-06-05 03:50:42,622 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 341.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:43,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31282 states. [2021-06-05 03:50:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31282 to 13254. [2021-06-05 03:50:43,662 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 03:50:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13254 states to 13254 states and 70522 transitions. [2021-06-05 03:50:43,931 INFO L78 Accepts]: Start accepts. Automaton has 13254 states and 70522 transitions. Word has length 33 [2021-06-05 03:50:43,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:43,931 INFO L482 AbstractCegarLoop]: Abstraction has 13254 states and 70522 transitions. [2021-06-05 03:50:43,932 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 03:50:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand 13254 states and 70522 transitions. [2021-06-05 03:50:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:43,960 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:43,960 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:43,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-06-05 03:50:43,960 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 03:50:43,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:43,961 INFO L82 PathProgramCache]: Analyzing trace with hash -961070567, now seen corresponding path program 283 times [2021-06-05 03:50:43,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:43,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636949865] [2021-06-05 03:50:43,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:44,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:44,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636949865] [2021-06-05 03:50:44,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636949865] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:44,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:44,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:44,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905240082] [2021-06-05 03:50:44,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:44,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:44,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:44,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:44,114 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 03:50:44,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:44,353 INFO L93 Difference]: Finished difference Result 32281 states and 161928 transitions. [2021-06-05 03:50:44,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:44,353 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:44,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:44,453 INFO L225 Difference]: With dead ends: 32281 [2021-06-05 03:50:44,453 INFO L226 Difference]: Without dead ends: 31530 [2021-06-05 03:50:44,453 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 180.1ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:45,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31530 states. [2021-06-05 03:50:45,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31530 to 13530. [2021-06-05 03:50:45,713 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 03:50:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 71846 transitions. [2021-06-05 03:50:45,761 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 71846 transitions. Word has length 33 [2021-06-05 03:50:45,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:45,761 INFO L482 AbstractCegarLoop]: Abstraction has 13530 states and 71846 transitions. [2021-06-05 03:50:45,761 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 03:50:45,761 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 71846 transitions. [2021-06-05 03:50:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:45,790 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:45,790 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:45,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-06-05 03:50:45,790 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 03:50:45,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:45,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1578593925, now seen corresponding path program 284 times [2021-06-05 03:50:45,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:45,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709068690] [2021-06-05 03:50:45,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:45,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:45,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709068690] [2021-06-05 03:50:45,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709068690] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:45,945 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:45,945 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:45,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851691872] [2021-06-05 03:50:45,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:45,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:45,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:45,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:45,946 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 03:50:46,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:46,165 INFO L93 Difference]: Finished difference Result 32424 states and 162431 transitions. [2021-06-05 03:50:46,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:46,165 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 03:50:46,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:46,264 INFO L225 Difference]: With dead ends: 32424 [2021-06-05 03:50:46,264 INFO L226 Difference]: Without dead ends: 31346 [2021-06-05 03:50:46,264 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 161.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31346 states. [2021-06-05 03:50:47,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31346 to 13346. [2021-06-05 03:50:47,544 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 03:50:47,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70942 transitions. [2021-06-05 03:50:47,593 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70942 transitions. Word has length 33 [2021-06-05 03:50:47,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:47,593 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70942 transitions. [2021-06-05 03:50:47,593 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 03:50:47,594 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70942 transitions. [2021-06-05 03:50:47,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:47,623 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:47,623 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:47,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-06-05 03:50:47,623 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 03:50:47,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:47,623 INFO L82 PathProgramCache]: Analyzing trace with hash 440046971, now seen corresponding path program 285 times [2021-06-05 03:50:47,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:47,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868650333] [2021-06-05 03:50:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:47,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:47,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868650333] [2021-06-05 03:50:47,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868650333] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:47,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:47,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:47,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454702261] [2021-06-05 03:50:47,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:47,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:47,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:47,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:47,763 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 03:50:48,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:48,008 INFO L93 Difference]: Finished difference Result 32086 states and 160933 transitions. [2021-06-05 03:50:48,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:48,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:48,108 INFO L225 Difference]: With dead ends: 32086 [2021-06-05 03:50:48,108 INFO L226 Difference]: Without dead ends: 31335 [2021-06-05 03:50:48,108 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:49,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31335 states. [2021-06-05 03:50:49,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31335 to 13466. [2021-06-05 03:50:49,422 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 03:50:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71434 transitions. [2021-06-05 03:50:49,467 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71434 transitions. Word has length 33 [2021-06-05 03:50:49,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:49,467 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71434 transitions. [2021-06-05 03:50:49,467 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:49,467 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71434 transitions. [2021-06-05 03:50:49,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:49,493 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:49,493 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:49,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-06-05 03:50:49,494 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 03:50:49,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:49,494 INFO L82 PathProgramCache]: Analyzing trace with hash 693387387, now seen corresponding path program 286 times [2021-06-05 03:50:49,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:49,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933949397] [2021-06-05 03:50:49,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:49,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:49,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933949397] [2021-06-05 03:50:49,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933949397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:49,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:49,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:49,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106174943] [2021-06-05 03:50:49,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:49,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:49,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:49,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:49,631 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 03:50:49,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:49,855 INFO L93 Difference]: Finished difference Result 32098 states and 160853 transitions. [2021-06-05 03:50:49,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:49,856 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 03:50:49,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:49,946 INFO L225 Difference]: With dead ends: 32098 [2021-06-05 03:50:49,946 INFO L226 Difference]: Without dead ends: 31215 [2021-06-05 03:50:49,946 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 163.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31215 states. [2021-06-05 03:50:51,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31215 to 13346. [2021-06-05 03:50:51,214 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 03:50:51,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70882 transitions. [2021-06-05 03:50:51,257 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70882 transitions. Word has length 33 [2021-06-05 03:50:51,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:51,257 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70882 transitions. [2021-06-05 03:50:51,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:51,257 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70882 transitions. [2021-06-05 03:50:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:51,283 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:51,283 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:51,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-06-05 03:50:51,283 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 03:50:51,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:51,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1364944733, now seen corresponding path program 287 times [2021-06-05 03:50:51,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:51,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124042335] [2021-06-05 03:50:51,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:51,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:51,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:51,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124042335] [2021-06-05 03:50:51,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124042335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:51,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:51,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:51,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271101460] [2021-06-05 03:50:51,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:51,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:51,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:51,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:51,425 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 03:50:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:51,844 INFO L93 Difference]: Finished difference Result 32442 states and 162462 transitions. [2021-06-05 03:50:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:51,844 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 03:50:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:51,941 INFO L225 Difference]: With dead ends: 32442 [2021-06-05 03:50:51,941 INFO L226 Difference]: Without dead ends: 31548 [2021-06-05 03:50:51,942 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 147.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:52,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31548 states. [2021-06-05 03:50:52,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31548 to 13536. [2021-06-05 03:50:52,997 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 03:50:53,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13536 states to 13536 states and 71647 transitions. [2021-06-05 03:50:53,040 INFO L78 Accepts]: Start accepts. Automaton has 13536 states and 71647 transitions. Word has length 33 [2021-06-05 03:50:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:53,040 INFO L482 AbstractCegarLoop]: Abstraction has 13536 states and 71647 transitions. [2021-06-05 03:50:53,040 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 03:50:53,040 INFO L276 IsEmpty]: Start isEmpty. Operand 13536 states and 71647 transitions. [2021-06-05 03:50:53,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:53,067 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:53,067 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:53,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-06-05 03:50:53,067 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 03:50:53,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:53,067 INFO L82 PathProgramCache]: Analyzing trace with hash -668067909, now seen corresponding path program 288 times [2021-06-05 03:50:53,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:53,067 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870544570] [2021-06-05 03:50:53,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:53,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:53,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870544570] [2021-06-05 03:50:53,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870544570] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:53,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:53,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:53,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569404939] [2021-06-05 03:50:53,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:53,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:53,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:53,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:53,345 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 03:50:53,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:53,580 INFO L93 Difference]: Finished difference Result 32311 states and 161689 transitions. [2021-06-05 03:50:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:53,581 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 03:50:53,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:53,671 INFO L225 Difference]: With dead ends: 32311 [2021-06-05 03:50:53,671 INFO L226 Difference]: Without dead ends: 31220 [2021-06-05 03:50:53,671 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 304.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:54,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31220 states. [2021-06-05 03:50:54,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31220 to 13208. [2021-06-05 03:50:54,872 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 03:50:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70342 transitions. [2021-06-05 03:50:54,915 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70342 transitions. Word has length 33 [2021-06-05 03:50:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:54,915 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70342 transitions. [2021-06-05 03:50:54,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70342 transitions. [2021-06-05 03:50:54,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:54,940 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:54,940 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:54,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-06-05 03:50:54,940 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 03:50:54,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:54,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1116380701, now seen corresponding path program 289 times [2021-06-05 03:50:54,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:54,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844426483] [2021-06-05 03:50:54,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:55,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:55,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:55,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844426483] [2021-06-05 03:50:55,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844426483] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:55,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:55,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:55,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317181855] [2021-06-05 03:50:55,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:55,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:55,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:55,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:55,080 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 03:50:55,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:55,315 INFO L93 Difference]: Finished difference Result 31362 states and 157565 transitions. [2021-06-05 03:50:55,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:55,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:55,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:55,403 INFO L225 Difference]: With dead ends: 31362 [2021-06-05 03:50:55,403 INFO L226 Difference]: Without dead ends: 30603 [2021-06-05 03:50:55,403 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 164.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:56,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30603 states. [2021-06-05 03:50:56,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30603 to 13418. [2021-06-05 03:50:56,615 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 03:50:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71353 transitions. [2021-06-05 03:50:56,661 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71353 transitions. Word has length 33 [2021-06-05 03:50:56,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:56,661 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71353 transitions. [2021-06-05 03:50:56,661 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 03:50:56,661 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71353 transitions. [2021-06-05 03:50:56,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:56,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:56,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:56,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-06-05 03:50:56,688 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 03:50:56,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:56,688 INFO L82 PathProgramCache]: Analyzing trace with hash 269583739, now seen corresponding path program 290 times [2021-06-05 03:50:56,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:56,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774291400] [2021-06-05 03:50:56,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:56,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:56,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:56,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774291400] [2021-06-05 03:50:56,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774291400] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:56,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:56,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:56,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95249488] [2021-06-05 03:50:56,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:56,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:56,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:56,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:56,828 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 03:50:57,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:57,072 INFO L93 Difference]: Finished difference Result 31354 states and 157417 transitions. [2021-06-05 03:50:57,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:57,073 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 03:50:57,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:57,169 INFO L225 Difference]: With dead ends: 31354 [2021-06-05 03:50:57,170 INFO L226 Difference]: Without dead ends: 30483 [2021-06-05 03:50:57,170 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:50:58,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30483 states. [2021-06-05 03:50:58,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30483 to 13298. [2021-06-05 03:50:58,431 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 03:50:58,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70801 transitions. [2021-06-05 03:50:58,478 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70801 transitions. Word has length 33 [2021-06-05 03:50:58,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:58,478 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70801 transitions. [2021-06-05 03:50:58,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70801 transitions. [2021-06-05 03:50:58,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:50:58,507 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:58,507 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:58,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-06-05 03:50:58,507 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 03:50:58,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:58,507 INFO L82 PathProgramCache]: Analyzing trace with hash -774118725, now seen corresponding path program 291 times [2021-06-05 03:50:58,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:58,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262508697] [2021-06-05 03:50:58,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:58,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:58,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262508697] [2021-06-05 03:50:58,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262508697] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:58,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:58,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:50:58,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174856138] [2021-06-05 03:50:58,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:50:58,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:58,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:50:58,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:58,651 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 03:50:58,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:58,883 INFO L93 Difference]: Finished difference Result 31380 states and 157566 transitions. [2021-06-05 03:50:58,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:50:58,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:50:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:58,978 INFO L225 Difference]: With dead ends: 31380 [2021-06-05 03:50:58,978 INFO L226 Difference]: Without dead ends: 30621 [2021-06-05 03:50:58,979 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:00,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30621 states. [2021-06-05 03:51:00,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30621 to 13422. [2021-06-05 03:51:00,318 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 03:51:00,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 71305 transitions. [2021-06-05 03:51:00,364 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 71305 transitions. Word has length 33 [2021-06-05 03:51:00,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:00,364 INFO L482 AbstractCegarLoop]: Abstraction has 13422 states and 71305 transitions. [2021-06-05 03:51:00,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:00,365 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 71305 transitions. [2021-06-05 03:51:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:00,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:00,393 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:00,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-06-05 03:51:00,393 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 03:51:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:00,393 INFO L82 PathProgramCache]: Analyzing trace with hash -348378437, now seen corresponding path program 292 times [2021-06-05 03:51:00,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:00,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036461058] [2021-06-05 03:51:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:00,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:00,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:00,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036461058] [2021-06-05 03:51:00,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036461058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:00,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:00,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:00,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440653141] [2021-06-05 03:51:00,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:00,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:00,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:00,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:00,533 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 03:51:00,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:00,765 INFO L93 Difference]: Finished difference Result 31386 states and 157459 transitions. [2021-06-05 03:51:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:00,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:00,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:00,862 INFO L225 Difference]: With dead ends: 31386 [2021-06-05 03:51:00,862 INFO L226 Difference]: Without dead ends: 30497 [2021-06-05 03:51:00,862 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:01,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30497 states. [2021-06-05 03:51:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30497 to 13298. [2021-06-05 03:51:02,116 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 03:51:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70741 transitions. [2021-06-05 03:51:02,159 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70741 transitions. Word has length 33 [2021-06-05 03:51:02,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:02,159 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70741 transitions. [2021-06-05 03:51:02,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:02,159 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70741 transitions. [2021-06-05 03:51:02,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:02,184 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:02,184 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:02,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-06-05 03:51:02,184 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 03:51:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:02,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1630866791, now seen corresponding path program 293 times [2021-06-05 03:51:02,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:02,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901669377] [2021-06-05 03:51:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:02,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:02,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901669377] [2021-06-05 03:51:02,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901669377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:02,338 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:02,338 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:02,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305664088] [2021-06-05 03:51:02,338 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:02,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:02,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:02,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:02,338 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 03:51:02,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:02,751 INFO L93 Difference]: Finished difference Result 31360 states and 157434 transitions. [2021-06-05 03:51:02,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:02,751 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:02,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:02,852 INFO L225 Difference]: With dead ends: 31360 [2021-06-05 03:51:02,852 INFO L226 Difference]: Without dead ends: 30609 [2021-06-05 03:51:02,852 INFO L777 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 03:51:03,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30609 states. [2021-06-05 03:51:03,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30609 to 13418. [2021-06-05 03:51:03,905 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 03:51:03,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71233 transitions. [2021-06-05 03:51:03,951 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71233 transitions. Word has length 33 [2021-06-05 03:51:03,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:03,951 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71233 transitions. [2021-06-05 03:51:03,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:03,951 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71233 transitions. [2021-06-05 03:51:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:03,977 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:03,977 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:03,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-06-05 03:51:03,977 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 03:51:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1353519483, now seen corresponding path program 294 times [2021-06-05 03:51:03,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:03,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2375926] [2021-06-05 03:51:03,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:04,112 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2021-06-05 03:51:04,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:04,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:04,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2375926] [2021-06-05 03:51:04,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2375926] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:04,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:04,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:04,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500361130] [2021-06-05 03:51:04,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:04,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:04,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:04,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:04,249 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 03:51:04,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:04,518 INFO L93 Difference]: Finished difference Result 31374 states and 157359 transitions. [2021-06-05 03:51:04,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:04,519 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:04,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:04,614 INFO L225 Difference]: With dead ends: 31374 [2021-06-05 03:51:04,614 INFO L226 Difference]: Without dead ends: 30429 [2021-06-05 03:51:04,615 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 177.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:05,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30429 states. [2021-06-05 03:51:05,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30429 to 13238. [2021-06-05 03:51:05,814 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 03:51:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 70495 transitions. [2021-06-05 03:51:05,857 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 70495 transitions. Word has length 33 [2021-06-05 03:51:05,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:05,857 INFO L482 AbstractCegarLoop]: Abstraction has 13238 states and 70495 transitions. [2021-06-05 03:51:05,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:05,857 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 70495 transitions. [2021-06-05 03:51:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:05,883 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:05,883 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:05,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-06-05 03:51:05,883 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 03:51:05,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:05,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2140276475, now seen corresponding path program 295 times [2021-06-05 03:51:05,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:05,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475944242] [2021-06-05 03:51:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:06,020 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 03:51:06,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:06,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475944242] [2021-06-05 03:51:06,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475944242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:06,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:06,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:06,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168283645] [2021-06-05 03:51:06,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:06,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:06,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:06,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:06,021 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 03:51:06,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:06,242 INFO L93 Difference]: Finished difference Result 31360 states and 157530 transitions. [2021-06-05 03:51:06,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:06,242 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:06,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:06,333 INFO L225 Difference]: With dead ends: 31360 [2021-06-05 03:51:06,333 INFO L226 Difference]: Without dead ends: 30601 [2021-06-05 03:51:06,333 INFO L777 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 03:51:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30601 states. [2021-06-05 03:51:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30601 to 13418. [2021-06-05 03:51:07,513 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 03:51:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71323 transitions. [2021-06-05 03:51:07,556 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71323 transitions. Word has length 33 [2021-06-05 03:51:07,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:07,556 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71323 transitions. [2021-06-05 03:51:07,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71323 transitions. [2021-06-05 03:51:07,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:07,581 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:07,581 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:07,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-06-05 03:51:07,581 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 03:51:07,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:07,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1293479513, now seen corresponding path program 296 times [2021-06-05 03:51:07,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:07,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725148944] [2021-06-05 03:51:07,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:07,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:07,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725148944] [2021-06-05 03:51:07,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725148944] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:07,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:07,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:07,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541303120] [2021-06-05 03:51:07,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:07,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:07,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:07,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:07,724 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 03:51:07,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:07,945 INFO L93 Difference]: Finished difference Result 31352 states and 157382 transitions. [2021-06-05 03:51:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:07,945 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 03:51:07,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:08,033 INFO L225 Difference]: With dead ends: 31352 [2021-06-05 03:51:08,033 INFO L226 Difference]: Without dead ends: 30481 [2021-06-05 03:51:08,033 INFO L777 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 03:51:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30481 states. [2021-06-05 03:51:09,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30481 to 13298. [2021-06-05 03:51:09,293 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 03:51:09,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70771 transitions. [2021-06-05 03:51:09,337 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70771 transitions. Word has length 33 [2021-06-05 03:51:09,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:09,337 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70771 transitions. [2021-06-05 03:51:09,337 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 03:51:09,337 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70771 transitions. [2021-06-05 03:51:09,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:09,363 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:09,363 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:09,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-06-05 03:51:09,363 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 03:51:09,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:09,364 INFO L82 PathProgramCache]: Analyzing trace with hash -989729989, now seen corresponding path program 297 times [2021-06-05 03:51:09,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:09,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867441985] [2021-06-05 03:51:09,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:09,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:09,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:09,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867441985] [2021-06-05 03:51:09,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867441985] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:09,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:09,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:09,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189349762] [2021-06-05 03:51:09,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:09,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:09,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:09,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:09,504 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 03:51:09,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:09,754 INFO L93 Difference]: Finished difference Result 31376 states and 157526 transitions. [2021-06-05 03:51:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:09,754 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:09,847 INFO L225 Difference]: With dead ends: 31376 [2021-06-05 03:51:09,847 INFO L226 Difference]: Without dead ends: 30617 [2021-06-05 03:51:09,847 INFO L777 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 03:51:10,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30617 states. [2021-06-05 03:51:11,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30617 to 13422. [2021-06-05 03:51:11,121 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 03:51:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13422 states to 13422 states and 71275 transitions. [2021-06-05 03:51:11,166 INFO L78 Accepts]: Start accepts. Automaton has 13422 states and 71275 transitions. Word has length 33 [2021-06-05 03:51:11,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:11,166 INFO L482 AbstractCegarLoop]: Abstraction has 13422 states and 71275 transitions. [2021-06-05 03:51:11,166 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:11,166 INFO L276 IsEmpty]: Start isEmpty. Operand 13422 states and 71275 transitions. [2021-06-05 03:51:11,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:11,193 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:11,193 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:11,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-06-05 03:51:11,193 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 03:51:11,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:11,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1768637243, now seen corresponding path program 298 times [2021-06-05 03:51:11,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:11,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351307952] [2021-06-05 03:51:11,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:11,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:11,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351307952] [2021-06-05 03:51:11,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351307952] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:11,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:11,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:11,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378555341] [2021-06-05 03:51:11,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:11,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:11,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:11,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:11,333 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 03:51:11,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:11,581 INFO L93 Difference]: Finished difference Result 31380 states and 157414 transitions. [2021-06-05 03:51:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:11,581 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 03:51:11,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:11,921 INFO L225 Difference]: With dead ends: 31380 [2021-06-05 03:51:11,921 INFO L226 Difference]: Without dead ends: 30493 [2021-06-05 03:51:11,921 INFO L777 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 03:51:12,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30493 states. [2021-06-05 03:51:12,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30493 to 13298. [2021-06-05 03:51:12,945 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 03:51:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70711 transitions. [2021-06-05 03:51:12,990 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70711 transitions. Word has length 33 [2021-06-05 03:51:12,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:12,990 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70711 transitions. [2021-06-05 03:51:12,991 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 03:51:12,991 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70711 transitions. [2021-06-05 03:51:13,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:13,018 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:13,018 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:13,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-06-05 03:51:13,018 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 03:51:13,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:13,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1846478055, now seen corresponding path program 299 times [2021-06-05 03:51:13,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:13,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958011268] [2021-06-05 03:51:13,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:13,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:13,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:13,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958011268] [2021-06-05 03:51:13,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958011268] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:13,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:13,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:13,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749067736] [2021-06-05 03:51:13,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:13,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:13,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:13,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:13,158 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 03:51:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:13,596 INFO L93 Difference]: Finished difference Result 31356 states and 157394 transitions. [2021-06-05 03:51:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:13,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:13,702 INFO L225 Difference]: With dead ends: 31356 [2021-06-05 03:51:13,702 INFO L226 Difference]: Without dead ends: 30605 [2021-06-05 03:51:13,702 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30605 states. [2021-06-05 03:51:14,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30605 to 13418. [2021-06-05 03:51:14,740 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 03:51:14,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71203 transitions. [2021-06-05 03:51:14,783 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71203 transitions. Word has length 33 [2021-06-05 03:51:14,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:14,783 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71203 transitions. [2021-06-05 03:51:14,784 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 03:51:14,784 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71203 transitions. [2021-06-05 03:51:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:14,949 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:14,949 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:14,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-06-05 03:51:14,950 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 03:51:14,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:14,950 INFO L82 PathProgramCache]: Analyzing trace with hash 444850555, now seen corresponding path program 300 times [2021-06-05 03:51:14,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:14,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543743353] [2021-06-05 03:51:14,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:15,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:15,088 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:15,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543743353] [2021-06-05 03:51:15,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543743353] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:15,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:15,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:15,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373662962] [2021-06-05 03:51:15,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:15,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:15,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:15,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:15,088 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 03:51:15,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:15,328 INFO L93 Difference]: Finished difference Result 31368 states and 157314 transitions. [2021-06-05 03:51:15,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:15,328 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:15,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:15,420 INFO L225 Difference]: With dead ends: 31368 [2021-06-05 03:51:15,420 INFO L226 Difference]: Without dead ends: 30425 [2021-06-05 03:51:15,420 INFO L777 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 03:51:16,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30425 states. [2021-06-05 03:51:16,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30425 to 13238. [2021-06-05 03:51:16,638 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 03:51:16,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 70465 transitions. [2021-06-05 03:51:16,682 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 70465 transitions. Word has length 33 [2021-06-05 03:51:16,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:16,682 INFO L482 AbstractCegarLoop]: Abstraction has 13238 states and 70465 transitions. [2021-06-05 03:51:16,682 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:16,682 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 70465 transitions. [2021-06-05 03:51:16,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:16,707 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:16,707 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:16,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-06-05 03:51:16,708 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 03:51:16,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:16,708 INFO L82 PathProgramCache]: Analyzing trace with hash -670076839, now seen corresponding path program 301 times [2021-06-05 03:51:16,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:16,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353324541] [2021-06-05 03:51:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:16,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:16,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:16,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353324541] [2021-06-05 03:51:16,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353324541] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:16,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:16,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:16,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474762207] [2021-06-05 03:51:16,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:16,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:16,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:16,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:16,867 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 03:51:17,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:17,108 INFO L93 Difference]: Finished difference Result 31404 states and 157654 transitions. [2021-06-05 03:51:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:17,108 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:17,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:17,200 INFO L225 Difference]: With dead ends: 31404 [2021-06-05 03:51:17,200 INFO L226 Difference]: Without dead ends: 30645 [2021-06-05 03:51:17,200 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 174.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:17,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30645 states. [2021-06-05 03:51:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30645 to 13424. [2021-06-05 03:51:18,385 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 03:51:18,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13424 states to 13424 states and 71314 transitions. [2021-06-05 03:51:18,440 INFO L78 Accepts]: Start accepts. Automaton has 13424 states and 71314 transitions. Word has length 33 [2021-06-05 03:51:18,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:18,440 INFO L482 AbstractCegarLoop]: Abstraction has 13424 states and 71314 transitions. [2021-06-05 03:51:18,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 13424 states and 71314 transitions. [2021-06-05 03:51:18,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:18,468 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:18,468 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:18,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-06-05 03:51:18,468 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 03:51:18,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:18,468 INFO L82 PathProgramCache]: Analyzing trace with hash -244336551, now seen corresponding path program 302 times [2021-06-05 03:51:18,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:18,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169668877] [2021-06-05 03:51:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:18,623 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 03:51:18,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:18,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169668877] [2021-06-05 03:51:18,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169668877] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:18,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:18,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:18,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707085943] [2021-06-05 03:51:18,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:18,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:18,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:18,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:18,624 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 03:51:18,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:18,846 INFO L93 Difference]: Finished difference Result 31410 states and 157547 transitions. [2021-06-05 03:51:18,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:18,846 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:18,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:18,940 INFO L225 Difference]: With dead ends: 31410 [2021-06-05 03:51:18,940 INFO L226 Difference]: Without dead ends: 30521 [2021-06-05 03:51:18,940 INFO L777 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 03:51:19,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30521 states. [2021-06-05 03:51:20,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30521 to 13300. [2021-06-05 03:51:20,150 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 03:51:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13300 states to 13300 states and 70748 transitions. [2021-06-05 03:51:20,193 INFO L78 Accepts]: Start accepts. Automaton has 13300 states and 70748 transitions. Word has length 33 [2021-06-05 03:51:20,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:20,193 INFO L482 AbstractCegarLoop]: Abstraction has 13300 states and 70748 transitions. [2021-06-05 03:51:20,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand 13300 states and 70748 transitions. [2021-06-05 03:51:20,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:20,218 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:20,218 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:20,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-06-05 03:51:20,218 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 03:51:20,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:20,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1039524923, now seen corresponding path program 303 times [2021-06-05 03:51:20,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:20,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681467528] [2021-06-05 03:51:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:20,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:20,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681467528] [2021-06-05 03:51:20,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681467528] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:20,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:20,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:20,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610052877] [2021-06-05 03:51:20,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:20,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:20,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:20,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:20,360 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 03:51:20,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:20,588 INFO L93 Difference]: Finished difference Result 31402 states and 157587 transitions. [2021-06-05 03:51:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:20,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:20,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:20,678 INFO L225 Difference]: With dead ends: 31402 [2021-06-05 03:51:20,678 INFO L226 Difference]: Without dead ends: 30643 [2021-06-05 03:51:20,678 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:21,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30643 states. [2021-06-05 03:51:21,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30643 to 13424. [2021-06-05 03:51:21,922 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 03:51:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13424 states to 13424 states and 71252 transitions. [2021-06-05 03:51:21,966 INFO L78 Accepts]: Start accepts. Automaton has 13424 states and 71252 transitions. Word has length 33 [2021-06-05 03:51:21,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:21,966 INFO L482 AbstractCegarLoop]: Abstraction has 13424 states and 71252 transitions. [2021-06-05 03:51:21,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 13424 states and 71252 transitions. [2021-06-05 03:51:21,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:21,992 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:21,992 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:21,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-06-05 03:51:21,992 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 03:51:21,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:21,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1769855065, now seen corresponding path program 304 times [2021-06-05 03:51:21,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:21,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307112710] [2021-06-05 03:51:21,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:22,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:22,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307112710] [2021-06-05 03:51:22,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307112710] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:22,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:22,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:22,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540394531] [2021-06-05 03:51:22,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:22,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:22,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:22,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:22,134 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 03:51:22,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:22,378 INFO L93 Difference]: Finished difference Result 31406 states and 157475 transitions. [2021-06-05 03:51:22,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:22,379 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 03:51:22,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:22,706 INFO L225 Difference]: With dead ends: 31406 [2021-06-05 03:51:22,706 INFO L226 Difference]: Without dead ends: 30519 [2021-06-05 03:51:22,706 INFO L777 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 03:51:23,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30519 states. [2021-06-05 03:51:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30519 to 13300. [2021-06-05 03:51:23,744 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 03:51:23,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13300 states to 13300 states and 70686 transitions. [2021-06-05 03:51:23,787 INFO L78 Accepts]: Start accepts. Automaton has 13300 states and 70686 transitions. Word has length 33 [2021-06-05 03:51:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:23,787 INFO L482 AbstractCegarLoop]: Abstraction has 13300 states and 70686 transitions. [2021-06-05 03:51:23,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:23,788 INFO L276 IsEmpty]: Start isEmpty. Operand 13300 states and 70686 transitions. [2021-06-05 03:51:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:23,814 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:23,814 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:23,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-06-05 03:51:23,814 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 03:51:23,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:23,814 INFO L82 PathProgramCache]: Analyzing trace with hash 551751769, now seen corresponding path program 305 times [2021-06-05 03:51:23,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:23,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764141970] [2021-06-05 03:51:23,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:23,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:23,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:23,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764141970] [2021-06-05 03:51:23,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764141970] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:23,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:23,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:23,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977264549] [2021-06-05 03:51:23,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:23,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:23,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:23,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:23,961 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 03:51:24,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:24,374 INFO L93 Difference]: Finished difference Result 31416 states and 157566 transitions. [2021-06-05 03:51:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:24,374 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:24,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:24,471 INFO L225 Difference]: With dead ends: 31416 [2021-06-05 03:51:24,471 INFO L226 Difference]: Without dead ends: 30651 [2021-06-05 03:51:24,471 INFO L777 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 03:51:25,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30651 states. [2021-06-05 03:51:25,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30651 to 13426. [2021-06-05 03:51:25,533 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 03:51:25,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13426 states to 13426 states and 71195 transitions. [2021-06-05 03:51:25,576 INFO L78 Accepts]: Start accepts. Automaton has 13426 states and 71195 transitions. Word has length 33 [2021-06-05 03:51:25,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:25,576 INFO L482 AbstractCegarLoop]: Abstraction has 13426 states and 71195 transitions. [2021-06-05 03:51:25,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:25,576 INFO L276 IsEmpty]: Start isEmpty. Operand 13426 states and 71195 transitions. [2021-06-05 03:51:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:25,742 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:25,742 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:25,742 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-06-05 03:51:25,742 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 03:51:25,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:25,742 INFO L82 PathProgramCache]: Analyzing trace with hash 70849723, now seen corresponding path program 306 times [2021-06-05 03:51:25,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:25,743 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567443816] [2021-06-05 03:51:25,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:25,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:25,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567443816] [2021-06-05 03:51:25,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567443816] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:25,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:25,883 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:25,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3384806] [2021-06-05 03:51:25,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:25,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:25,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:25,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:25,884 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 03:51:26,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:26,152 INFO L93 Difference]: Finished difference Result 31414 states and 157435 transitions. [2021-06-05 03:51:26,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:26,152 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 03:51:26,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:26,249 INFO L225 Difference]: With dead ends: 31414 [2021-06-05 03:51:26,249 INFO L226 Difference]: Without dead ends: 30463 [2021-06-05 03:51:26,249 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:26,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30463 states. [2021-06-05 03:51:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30463 to 13238. [2021-06-05 03:51:27,445 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 03:51:27,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13238 states to 13238 states and 70435 transitions. [2021-06-05 03:51:27,489 INFO L78 Accepts]: Start accepts. Automaton has 13238 states and 70435 transitions. Word has length 33 [2021-06-05 03:51:27,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:27,489 INFO L482 AbstractCegarLoop]: Abstraction has 13238 states and 70435 transitions. [2021-06-05 03:51:27,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 13238 states and 70435 transitions. [2021-06-05 03:51:27,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:27,516 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:27,516 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:27,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-06-05 03:51:27,516 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 03:51:27,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:27,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1795066039, now seen corresponding path program 307 times [2021-06-05 03:51:27,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:27,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570305922] [2021-06-05 03:51:27,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:27,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:27,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570305922] [2021-06-05 03:51:27,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570305922] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:27,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:27,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:27,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668242627] [2021-06-05 03:51:27,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:27,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:27,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:27,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:27,674 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 03:51:27,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:27,910 INFO L93 Difference]: Finished difference Result 31366 states and 157483 transitions. [2021-06-05 03:51:27,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:27,911 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:27,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:28,002 INFO L225 Difference]: With dead ends: 31366 [2021-06-05 03:51:28,002 INFO L226 Difference]: Without dead ends: 30615 [2021-06-05 03:51:28,002 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 187.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:28,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30615 states. [2021-06-05 03:51:29,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30615 to 13418. [2021-06-05 03:51:29,208 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 03:51:29,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71263 transitions. [2021-06-05 03:51:29,253 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71263 transitions. Word has length 33 [2021-06-05 03:51:29,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:29,254 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71263 transitions. [2021-06-05 03:51:29,254 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 03:51:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71263 transitions. [2021-06-05 03:51:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:29,280 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:29,280 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:29,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-06-05 03:51:29,280 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 03:51:29,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:29,280 INFO L82 PathProgramCache]: Analyzing trace with hash 484485017, now seen corresponding path program 308 times [2021-06-05 03:51:29,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:29,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919600862] [2021-06-05 03:51:29,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:29,435 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:29,435 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919600862] [2021-06-05 03:51:29,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919600862] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:29,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:29,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:29,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538489475] [2021-06-05 03:51:29,435 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:29,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:29,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:29,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:29,435 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 03:51:29,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:29,698 INFO L93 Difference]: Finished difference Result 31380 states and 157408 transitions. [2021-06-05 03:51:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:29,699 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:29,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:29,796 INFO L225 Difference]: With dead ends: 31380 [2021-06-05 03:51:29,797 INFO L226 Difference]: Without dead ends: 30495 [2021-06-05 03:51:29,797 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 184.0ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:30,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30495 states. [2021-06-05 03:51:31,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30495 to 13298. [2021-06-05 03:51:31,054 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 03:51:31,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70711 transitions. [2021-06-05 03:51:31,097 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70711 transitions. Word has length 33 [2021-06-05 03:51:31,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:31,097 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70711 transitions. [2021-06-05 03:51:31,097 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:31,097 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70711 transitions. [2021-06-05 03:51:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:31,123 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:31,123 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:31,123 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-06-05 03:51:31,123 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 03:51:31,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:31,124 INFO L82 PathProgramCache]: Analyzing trace with hash -790299495, now seen corresponding path program 309 times [2021-06-05 03:51:31,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:31,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526354789] [2021-06-05 03:51:31,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:31,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:31,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526354789] [2021-06-05 03:51:31,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526354789] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:31,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:31,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:31,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895106564] [2021-06-05 03:51:31,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:31,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:31,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:31,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:31,263 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 03:51:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:31,493 INFO L93 Difference]: Finished difference Result 31364 states and 157418 transitions. [2021-06-05 03:51:31,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:31,493 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:31,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:31,585 INFO L225 Difference]: With dead ends: 31364 [2021-06-05 03:51:31,585 INFO L226 Difference]: Without dead ends: 30613 [2021-06-05 03:51:31,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:32,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30613 states. [2021-06-05 03:51:32,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30613 to 13418. [2021-06-05 03:51:32,860 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 03:51:32,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13418 states to 13418 states and 71203 transitions. [2021-06-05 03:51:32,905 INFO L78 Accepts]: Start accepts. Automaton has 13418 states and 71203 transitions. Word has length 33 [2021-06-05 03:51:32,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:32,906 INFO L482 AbstractCegarLoop]: Abstraction has 13418 states and 71203 transitions. [2021-06-05 03:51:32,906 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 03:51:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 13418 states and 71203 transitions. [2021-06-05 03:51:32,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:32,933 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:32,933 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:32,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-06-05 03:51:32,933 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 03:51:32,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:32,933 INFO L82 PathProgramCache]: Analyzing trace with hash -527007975, now seen corresponding path program 310 times [2021-06-05 03:51:32,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:32,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950790595] [2021-06-05 03:51:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:33,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:33,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:33,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950790595] [2021-06-05 03:51:33,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950790595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:33,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:33,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:33,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46617774] [2021-06-05 03:51:33,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:33,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:33,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:33,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:33,073 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 03:51:33,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:33,533 INFO L93 Difference]: Finished difference Result 31376 states and 157338 transitions. [2021-06-05 03:51:33,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:33,533 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:33,638 INFO L225 Difference]: With dead ends: 31376 [2021-06-05 03:51:33,638 INFO L226 Difference]: Without dead ends: 30493 [2021-06-05 03:51:33,638 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:34,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30493 states. [2021-06-05 03:51:34,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30493 to 13298. [2021-06-05 03:51:34,660 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 03:51:34,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13298 states to 13298 states and 70651 transitions. [2021-06-05 03:51:34,707 INFO L78 Accepts]: Start accepts. Automaton has 13298 states and 70651 transitions. Word has length 33 [2021-06-05 03:51:34,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:34,707 INFO L482 AbstractCegarLoop]: Abstraction has 13298 states and 70651 transitions. [2021-06-05 03:51:34,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:34,707 INFO L276 IsEmpty]: Start isEmpty. Operand 13298 states and 70651 transitions. [2021-06-05 03:51:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:34,735 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:34,735 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:34,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-06-05 03:51:34,735 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 03:51:34,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:34,736 INFO L82 PathProgramCache]: Analyzing trace with hash -866943621, now seen corresponding path program 311 times [2021-06-05 03:51:34,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:34,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926757974] [2021-06-05 03:51:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:34,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:34,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:34,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926757974] [2021-06-05 03:51:34,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926757974] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:34,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:34,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:34,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577487003] [2021-06-05 03:51:34,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:34,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:34,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:34,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:34,877 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 03:51:35,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:35,262 INFO L93 Difference]: Finished difference Result 31398 states and 157471 transitions. [2021-06-05 03:51:35,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:35,263 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:35,354 INFO L225 Difference]: With dead ends: 31398 [2021-06-05 03:51:35,354 INFO L226 Difference]: Without dead ends: 30633 [2021-06-05 03:51:35,354 INFO L777 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 03:51:36,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30633 states. [2021-06-05 03:51:36,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30633 to 13424. [2021-06-05 03:51:36,416 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 03:51:36,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13424 states to 13424 states and 71160 transitions. [2021-06-05 03:51:36,692 INFO L78 Accepts]: Start accepts. Automaton has 13424 states and 71160 transitions. Word has length 33 [2021-06-05 03:51:36,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:36,692 INFO L482 AbstractCegarLoop]: Abstraction has 13424 states and 71160 transitions. [2021-06-05 03:51:36,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:36,692 INFO L276 IsEmpty]: Start isEmpty. Operand 13424 states and 71160 transitions. [2021-06-05 03:51:36,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:36,725 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:36,725 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:36,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-06-05 03:51:36,725 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 03:51:36,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:36,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1404962137, now seen corresponding path program 312 times [2021-06-05 03:51:36,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:36,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533075052] [2021-06-05 03:51:36,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:36,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:36,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533075052] [2021-06-05 03:51:36,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533075052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:36,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:36,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:36,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815333195] [2021-06-05 03:51:36,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:36,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:36,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:36,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:36,868 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 03:51:37,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:37,127 INFO L93 Difference]: Finished difference Result 31396 states and 157340 transitions. [2021-06-05 03:51:37,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:37,127 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:37,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:37,220 INFO L225 Difference]: With dead ends: 31396 [2021-06-05 03:51:37,220 INFO L226 Difference]: Without dead ends: 30417 [2021-06-05 03:51:37,220 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 170.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30417 states. [2021-06-05 03:51:38,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30417 to 13208. [2021-06-05 03:51:38,485 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 03:51:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70327 transitions. [2021-06-05 03:51:38,529 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70327 transitions. Word has length 33 [2021-06-05 03:51:38,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:38,529 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70327 transitions. [2021-06-05 03:51:38,529 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70327 transitions. [2021-06-05 03:51:38,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:38,554 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:38,555 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:38,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-06-05 03:51:38,555 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 03:51:38,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:38,555 INFO L82 PathProgramCache]: Analyzing trace with hash 890792025, now seen corresponding path program 313 times [2021-06-05 03:51:38,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:38,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74109401] [2021-06-05 03:51:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:38,712 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 03:51:38,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:38,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74109401] [2021-06-05 03:51:38,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74109401] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:38,713 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:38,713 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:38,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583199345] [2021-06-05 03:51:38,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:38,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:38,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:38,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:38,713 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 03:51:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:38,953 INFO L93 Difference]: Finished difference Result 32665 states and 163555 transitions. [2021-06-05 03:51:38,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:38,953 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:38,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:39,055 INFO L225 Difference]: With dead ends: 32665 [2021-06-05 03:51:39,055 INFO L226 Difference]: Without dead ends: 31906 [2021-06-05 03:51:39,056 INFO L777 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 03:51:40,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31906 states. [2021-06-05 03:51:40,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31906 to 13617. [2021-06-05 03:51:40,307 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 03:51:40,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13617 states to 13617 states and 72292 transitions. [2021-06-05 03:51:40,352 INFO L78 Accepts]: Start accepts. Automaton has 13617 states and 72292 transitions. Word has length 33 [2021-06-05 03:51:40,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:40,352 INFO L482 AbstractCegarLoop]: Abstraction has 13617 states and 72292 transitions. [2021-06-05 03:51:40,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:40,352 INFO L276 IsEmpty]: Start isEmpty. Operand 13617 states and 72292 transitions. [2021-06-05 03:51:40,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:40,380 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:40,380 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:40,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-06-05 03:51:40,380 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 03:51:40,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:40,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1016094631, now seen corresponding path program 314 times [2021-06-05 03:51:40,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:40,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065793098] [2021-06-05 03:51:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:40,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:40,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:40,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065793098] [2021-06-05 03:51:40,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065793098] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:40,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:40,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:40,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308221716] [2021-06-05 03:51:40,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:40,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:40,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:40,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:40,541 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 03:51:40,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:40,754 INFO L93 Difference]: Finished difference Result 32800 states and 164026 transitions. [2021-06-05 03:51:40,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:40,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:40,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:40,849 INFO L225 Difference]: With dead ends: 32800 [2021-06-05 03:51:40,849 INFO L226 Difference]: Without dead ends: 31718 [2021-06-05 03:51:40,849 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:41,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31718 states. [2021-06-05 03:51:42,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31718 to 13429. [2021-06-05 03:51:42,112 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 03:51:42,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 71374 transitions. [2021-06-05 03:51:42,155 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 71374 transitions. Word has length 33 [2021-06-05 03:51:42,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:42,155 INFO L482 AbstractCegarLoop]: Abstraction has 13429 states and 71374 transitions. [2021-06-05 03:51:42,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:42,155 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 71374 transitions. [2021-06-05 03:51:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:42,181 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:42,181 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:42,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-06-05 03:51:42,181 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 03:51:42,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:42,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1694573509, now seen corresponding path program 315 times [2021-06-05 03:51:42,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:42,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451496869] [2021-06-05 03:51:42,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:42,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:42,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:42,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451496869] [2021-06-05 03:51:42,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451496869] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:42,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:42,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:42,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413048442] [2021-06-05 03:51:42,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:42,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:42,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:42,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:42,320 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 03:51:42,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:42,564 INFO L93 Difference]: Finished difference Result 32472 states and 162563 transitions. [2021-06-05 03:51:42,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:42,564 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:42,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:42,662 INFO L225 Difference]: With dead ends: 32472 [2021-06-05 03:51:42,663 INFO L226 Difference]: Without dead ends: 31713 [2021-06-05 03:51:42,663 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31713 states. [2021-06-05 03:51:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31713 to 13553. [2021-06-05 03:51:43,941 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 03:51:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13553 states to 13553 states and 71878 transitions. [2021-06-05 03:51:43,985 INFO L78 Accepts]: Start accepts. Automaton has 13553 states and 71878 transitions. Word has length 33 [2021-06-05 03:51:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:43,985 INFO L482 AbstractCegarLoop]: Abstraction has 13553 states and 71878 transitions. [2021-06-05 03:51:43,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:43,985 INFO L276 IsEmpty]: Start isEmpty. Operand 13553 states and 71878 transitions. [2021-06-05 03:51:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:44,010 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:44,010 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:44,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-06-05 03:51:44,010 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 03:51:44,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:44,011 INFO L82 PathProgramCache]: Analyzing trace with hash 998096985, now seen corresponding path program 316 times [2021-06-05 03:51:44,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:44,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941136312] [2021-06-05 03:51:44,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:44,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:44,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941136312] [2021-06-05 03:51:44,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941136312] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:44,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:44,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:44,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703077052] [2021-06-05 03:51:44,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:44,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:44,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:44,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:44,152 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 03:51:44,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:44,579 INFO L93 Difference]: Finished difference Result 32478 states and 162456 transitions. [2021-06-05 03:51:44,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:44,580 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:44,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:44,673 INFO L225 Difference]: With dead ends: 32478 [2021-06-05 03:51:44,673 INFO L226 Difference]: Without dead ends: 31589 [2021-06-05 03:51:44,673 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:45,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31589 states. [2021-06-05 03:51:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31589 to 13429. [2021-06-05 03:51:45,703 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 03:51:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 71312 transitions. [2021-06-05 03:51:45,747 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 71312 transitions. Word has length 33 [2021-06-05 03:51:45,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:45,747 INFO L482 AbstractCegarLoop]: Abstraction has 13429 states and 71312 transitions. [2021-06-05 03:51:45,747 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:45,747 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 71312 transitions. [2021-06-05 03:51:45,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:45,773 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:45,773 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:45,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-06-05 03:51:45,773 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 03:51:45,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:45,773 INFO L82 PathProgramCache]: Analyzing trace with hash 98429017, now seen corresponding path program 317 times [2021-06-05 03:51:45,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:45,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706312546] [2021-06-05 03:51:45,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:46,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:46,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:46,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706312546] [2021-06-05 03:51:46,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706312546] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:46,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:46,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:46,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247118556] [2021-06-05 03:51:46,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:46,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:46,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:46,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:46,053 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 03:51:46,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:46,266 INFO L93 Difference]: Finished difference Result 32873 states and 164277 transitions. [2021-06-05 03:51:46,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:46,266 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 03:51:46,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:46,358 INFO L225 Difference]: With dead ends: 32873 [2021-06-05 03:51:46,358 INFO L226 Difference]: Without dead ends: 31979 [2021-06-05 03:51:46,358 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 147.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:47,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31979 states. [2021-06-05 03:51:47,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31979 to 13684. [2021-06-05 03:51:47,551 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 03:51:47,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13684 states to 13684 states and 72335 transitions. [2021-06-05 03:51:47,596 INFO L78 Accepts]: Start accepts. Automaton has 13684 states and 72335 transitions. Word has length 33 [2021-06-05 03:51:47,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:47,596 INFO L482 AbstractCegarLoop]: Abstraction has 13684 states and 72335 transitions. [2021-06-05 03:51:47,596 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:47,596 INFO L276 IsEmpty]: Start isEmpty. Operand 13684 states and 72335 transitions. [2021-06-05 03:51:47,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:47,622 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:47,622 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:47,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-06-05 03:51:47,622 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 03:51:47,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:47,623 INFO L82 PathProgramCache]: Analyzing trace with hash -382473029, now seen corresponding path program 318 times [2021-06-05 03:51:47,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:47,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945671198] [2021-06-05 03:51:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:47,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:47,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945671198] [2021-06-05 03:51:47,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945671198] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:47,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:47,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:47,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555519671] [2021-06-05 03:51:47,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:47,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:47,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:47,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:47,769 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 03:51:48,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:48,015 INFO L93 Difference]: Finished difference Result 32744 states and 163508 transitions. [2021-06-05 03:51:48,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:48,016 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:48,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:48,113 INFO L225 Difference]: With dead ends: 32744 [2021-06-05 03:51:48,113 INFO L226 Difference]: Without dead ends: 31598 [2021-06-05 03:51:48,113 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31598 states. [2021-06-05 03:51:49,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31598 to 13303. [2021-06-05 03:51:49,360 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 03:51:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 70740 transitions. [2021-06-05 03:51:49,406 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 70740 transitions. Word has length 33 [2021-06-05 03:51:49,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:49,406 INFO L482 AbstractCegarLoop]: Abstraction has 13303 states and 70740 transitions. [2021-06-05 03:51:49,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:49,406 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 70740 transitions. [2021-06-05 03:51:49,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:49,434 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:49,434 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:49,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-06-05 03:51:49,434 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 03:51:49,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:49,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1154389061, now seen corresponding path program 319 times [2021-06-05 03:51:49,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:49,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754187570] [2021-06-05 03:51:49,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:49,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:49,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754187570] [2021-06-05 03:51:49,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754187570] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:49,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:49,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:49,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533682362] [2021-06-05 03:51:49,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:49,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:49,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:49,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:49,592 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 03:51:49,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:49,841 INFO L93 Difference]: Finished difference Result 32566 states and 163084 transitions. [2021-06-05 03:51:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:49,841 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:49,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:49,938 INFO L225 Difference]: With dead ends: 32566 [2021-06-05 03:51:49,938 INFO L226 Difference]: Without dead ends: 31807 [2021-06-05 03:51:49,938 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 185.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:50,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31807 states. [2021-06-05 03:51:51,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31807 to 13585. [2021-06-05 03:51:51,304 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 03:51:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13585 states to 13585 states and 72085 transitions. [2021-06-05 03:51:51,349 INFO L78 Accepts]: Start accepts. Automaton has 13585 states and 72085 transitions. Word has length 33 [2021-06-05 03:51:51,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:51,349 INFO L482 AbstractCegarLoop]: Abstraction has 13585 states and 72085 transitions. [2021-06-05 03:51:51,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:51,349 INFO L276 IsEmpty]: Start isEmpty. Operand 13585 states and 72085 transitions. [2021-06-05 03:51:51,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:51,375 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:51,375 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:51,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-06-05 03:51:51,375 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 03:51:51,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:51,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1233691579, now seen corresponding path program 320 times [2021-06-05 03:51:51,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:51,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856788006] [2021-06-05 03:51:51,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:51,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:51,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:51,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856788006] [2021-06-05 03:51:51,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856788006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:51,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:51,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:51,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489090936] [2021-06-05 03:51:51,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:51,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:51,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:51,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:51,537 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 03:51:51,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:51,749 INFO L93 Difference]: Finished difference Result 32701 states and 163555 transitions. [2021-06-05 03:51:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:51,749 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:51,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:51,844 INFO L225 Difference]: With dead ends: 32701 [2021-06-05 03:51:51,844 INFO L226 Difference]: Without dead ends: 31619 [2021-06-05 03:51:51,844 INFO L777 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 03:51:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31619 states. [2021-06-05 03:51:53,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31619 to 13397. [2021-06-05 03:51:53,179 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 03:51:53,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 71167 transitions. [2021-06-05 03:51:53,222 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 71167 transitions. Word has length 33 [2021-06-05 03:51:53,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:53,222 INFO L482 AbstractCegarLoop]: Abstraction has 13397 states and 71167 transitions. [2021-06-05 03:51:53,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:53,222 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 71167 transitions. [2021-06-05 03:51:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:53,247 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:53,247 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:53,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-06-05 03:51:53,247 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 03:51:53,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:53,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1218237371, now seen corresponding path program 321 times [2021-06-05 03:51:53,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:53,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038953900] [2021-06-05 03:51:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:53,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:53,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038953900] [2021-06-05 03:51:53,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038953900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:53,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:53,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:53,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982709109] [2021-06-05 03:51:53,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:53,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:53,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:53,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:53,387 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 03:51:53,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:53,902 INFO L93 Difference]: Finished difference Result 32371 states and 162087 transitions. [2021-06-05 03:51:53,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:53,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:53,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:54,007 INFO L225 Difference]: With dead ends: 32371 [2021-06-05 03:51:54,007 INFO L226 Difference]: Without dead ends: 31612 [2021-06-05 03:51:54,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:54,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31612 states. [2021-06-05 03:51:55,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31612 to 13521. [2021-06-05 03:51:55,076 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 03:51:55,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 71671 transitions. [2021-06-05 03:51:55,122 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 71671 transitions. Word has length 33 [2021-06-05 03:51:55,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:55,122 INFO L482 AbstractCegarLoop]: Abstraction has 13521 states and 71671 transitions. [2021-06-05 03:51:55,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:55,122 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 71671 transitions. [2021-06-05 03:51:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:55,148 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:55,148 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:55,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-06-05 03:51:55,148 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 03:51:55,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:55,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1938616409, now seen corresponding path program 322 times [2021-06-05 03:51:55,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:55,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112846322] [2021-06-05 03:51:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:55,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:55,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112846322] [2021-06-05 03:51:55,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112846322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:55,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:55,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:55,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810328577] [2021-06-05 03:51:55,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:55,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:55,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:55,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:55,290 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 03:51:55,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:55,708 INFO L93 Difference]: Finished difference Result 32375 states and 161975 transitions. [2021-06-05 03:51:55,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:55,709 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:55,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:55,802 INFO L225 Difference]: With dead ends: 32375 [2021-06-05 03:51:55,802 INFO L226 Difference]: Without dead ends: 31488 [2021-06-05 03:51:55,803 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:56,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31488 states. [2021-06-05 03:51:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31488 to 13397. [2021-06-05 03:51:57,056 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 03:51:57,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13397 states to 13397 states and 71105 transitions. [2021-06-05 03:51:57,100 INFO L78 Accepts]: Start accepts. Automaton has 13397 states and 71105 transitions. Word has length 33 [2021-06-05 03:51:57,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:57,100 INFO L482 AbstractCegarLoop]: Abstraction has 13397 states and 71105 transitions. [2021-06-05 03:51:57,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:57,100 INFO L276 IsEmpty]: Start isEmpty. Operand 13397 states and 71105 transitions. [2021-06-05 03:51:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:57,125 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:57,125 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:57,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-06-05 03:51:57,125 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 03:51:57,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:57,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1293678503, now seen corresponding path program 323 times [2021-06-05 03:51:57,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:57,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130180073] [2021-06-05 03:51:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:57,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:57,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130180073] [2021-06-05 03:51:57,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130180073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:57,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:57,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:57,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748161592] [2021-06-05 03:51:57,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:57,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:57,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:57,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:57,267 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 03:51:57,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:57,492 INFO L93 Difference]: Finished difference Result 32707 states and 163542 transitions. [2021-06-05 03:51:57,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:57,492 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:57,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:57,584 INFO L225 Difference]: With dead ends: 32707 [2021-06-05 03:51:57,585 INFO L226 Difference]: Without dead ends: 31813 [2021-06-05 03:51:57,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 149.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:51:58,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31813 states. [2021-06-05 03:51:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31813 to 13587. [2021-06-05 03:51:58,833 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 03:51:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13587 states to 13587 states and 71870 transitions. [2021-06-05 03:51:58,876 INFO L78 Accepts]: Start accepts. Automaton has 13587 states and 71870 transitions. Word has length 33 [2021-06-05 03:51:58,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:58,876 INFO L482 AbstractCegarLoop]: Abstraction has 13587 states and 71870 transitions. [2021-06-05 03:51:58,876 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:58,876 INFO L276 IsEmpty]: Start isEmpty. Operand 13587 states and 71870 transitions. [2021-06-05 03:51:58,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:51:58,901 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:58,902 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:58,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-06-05 03:51:58,902 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 03:51:58,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:58,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1827329083, now seen corresponding path program 324 times [2021-06-05 03:51:58,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:58,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740915361] [2021-06-05 03:51:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:59,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:59,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740915361] [2021-06-05 03:51:59,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740915361] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:59,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:59,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:51:59,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253255896] [2021-06-05 03:51:59,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:51:59,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:59,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:51:59,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:59,042 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 03:51:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:59,284 INFO L93 Difference]: Finished difference Result 32576 states and 162769 transitions. [2021-06-05 03:51:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:51:59,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:51:59,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:59,374 INFO L225 Difference]: With dead ends: 32576 [2021-06-05 03:51:59,374 INFO L226 Difference]: Without dead ends: 31529 [2021-06-05 03:51:59,375 INFO L777 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 03:52:00,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31529 states. [2021-06-05 03:52:00,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31529 to 13303. [2021-06-05 03:52:00,611 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 03:52:00,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 70693 transitions. [2021-06-05 03:52:00,655 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 70693 transitions. Word has length 33 [2021-06-05 03:52:00,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:00,655 INFO L482 AbstractCegarLoop]: Abstraction has 13303 states and 70693 transitions. [2021-06-05 03:52:00,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 70693 transitions. [2021-06-05 03:52:00,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:00,682 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:00,682 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:00,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-06-05 03:52:00,682 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 03:52:00,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:00,682 INFO L82 PathProgramCache]: Analyzing trace with hash 454616861, now seen corresponding path program 325 times [2021-06-05 03:52:00,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:00,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911592756] [2021-06-05 03:52:00,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:00,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:00,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911592756] [2021-06-05 03:52:00,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911592756] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:00,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:00,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:00,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739044539] [2021-06-05 03:52:00,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:00,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:00,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:00,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:00,838 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 03:52:01,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:01,105 INFO L93 Difference]: Finished difference Result 32084 states and 160745 transitions. [2021-06-05 03:52:01,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:01,106 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:01,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:01,200 INFO L225 Difference]: With dead ends: 32084 [2021-06-05 03:52:01,200 INFO L226 Difference]: Without dead ends: 31325 [2021-06-05 03:52:01,201 INFO L777 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 03:52:02,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31325 states. [2021-06-05 03:52:02,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31325 to 13489. [2021-06-05 03:52:02,491 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 03:52:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 71542 transitions. [2021-06-05 03:52:02,536 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 71542 transitions. Word has length 33 [2021-06-05 03:52:02,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:02,536 INFO L482 AbstractCegarLoop]: Abstraction has 13489 states and 71542 transitions. [2021-06-05 03:52:02,536 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 03:52:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 71542 transitions. [2021-06-05 03:52:02,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:02,563 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:02,563 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:02,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-06-05 03:52:02,564 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 03:52:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:02,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1147679941, now seen corresponding path program 326 times [2021-06-05 03:52:02,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:02,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884329559] [2021-06-05 03:52:02,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:02,702 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 03:52:02,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:02,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884329559] [2021-06-05 03:52:02,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884329559] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:02,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:02,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:02,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278462176] [2021-06-05 03:52:02,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:02,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:02,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:02,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:02,703 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 03:52:02,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:02,941 INFO L93 Difference]: Finished difference Result 32090 states and 160638 transitions. [2021-06-05 03:52:02,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:02,942 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:03,288 INFO L225 Difference]: With dead ends: 32090 [2021-06-05 03:52:03,288 INFO L226 Difference]: Without dead ends: 31201 [2021-06-05 03:52:03,288 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:04,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31201 states. [2021-06-05 03:52:04,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31201 to 13365. [2021-06-05 03:52:04,383 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 03:52:04,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13365 states to 13365 states and 70976 transitions. [2021-06-05 03:52:04,428 INFO L78 Accepts]: Start accepts. Automaton has 13365 states and 70976 transitions. Word has length 33 [2021-06-05 03:52:04,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:04,428 INFO L482 AbstractCegarLoop]: Abstraction has 13365 states and 70976 transitions. [2021-06-05 03:52:04,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:04,428 INFO L276 IsEmpty]: Start isEmpty. Operand 13365 states and 70976 transitions. [2021-06-05 03:52:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:04,455 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:04,455 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:04,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-06-05 03:52:04,455 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 03:52:04,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:04,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1912663931, now seen corresponding path program 327 times [2021-06-05 03:52:04,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:04,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102444193] [2021-06-05 03:52:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:04,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:04,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:04,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102444193] [2021-06-05 03:52:04,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102444193] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:04,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:04,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:04,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700523818] [2021-06-05 03:52:04,596 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:04,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:04,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:04,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:04,596 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 03:52:05,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:05,084 INFO L93 Difference]: Finished difference Result 32082 states and 160678 transitions. [2021-06-05 03:52:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:05,084 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:05,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:05,215 INFO L225 Difference]: With dead ends: 32082 [2021-06-05 03:52:05,216 INFO L226 Difference]: Without dead ends: 31323 [2021-06-05 03:52:05,216 INFO L777 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 03:52:06,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31323 states. [2021-06-05 03:52:06,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31323 to 13489. [2021-06-05 03:52:06,467 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 03:52:06,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 71480 transitions. [2021-06-05 03:52:06,760 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 71480 transitions. Word has length 33 [2021-06-05 03:52:06,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:06,760 INFO L482 AbstractCegarLoop]: Abstraction has 13489 states and 71480 transitions. [2021-06-05 03:52:06,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:06,760 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 71480 transitions. [2021-06-05 03:52:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:06,813 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:06,813 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:06,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-06-05 03:52:06,813 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 03:52:06,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:06,813 INFO L82 PathProgramCache]: Analyzing trace with hash -106564677, now seen corresponding path program 328 times [2021-06-05 03:52:06,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:06,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650525372] [2021-06-05 03:52:06,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:06,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:06,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:06,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650525372] [2021-06-05 03:52:06,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650525372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:06,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:06,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:06,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867882489] [2021-06-05 03:52:06,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:06,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:06,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:06,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:06,980 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 03:52:07,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:07,227 INFO L93 Difference]: Finished difference Result 32086 states and 160566 transitions. [2021-06-05 03:52:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:07,323 INFO L225 Difference]: With dead ends: 32086 [2021-06-05 03:52:07,324 INFO L226 Difference]: Without dead ends: 31199 [2021-06-05 03:52:07,324 INFO L777 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 03:52:08,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31199 states. [2021-06-05 03:52:08,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31199 to 13365. [2021-06-05 03:52:08,594 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 03:52:08,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13365 states to 13365 states and 70914 transitions. [2021-06-05 03:52:08,640 INFO L78 Accepts]: Start accepts. Automaton has 13365 states and 70914 transitions. Word has length 33 [2021-06-05 03:52:08,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:08,640 INFO L482 AbstractCegarLoop]: Abstraction has 13365 states and 70914 transitions. [2021-06-05 03:52:08,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 13365 states and 70914 transitions. [2021-06-05 03:52:08,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:08,665 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:08,665 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:08,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-06-05 03:52:08,665 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 03:52:08,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:08,666 INFO L82 PathProgramCache]: Analyzing trace with hash -353159079, now seen corresponding path program 329 times [2021-06-05 03:52:08,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:08,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503314096] [2021-06-05 03:52:08,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:08,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:08,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503314096] [2021-06-05 03:52:08,802 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503314096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:08,802 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:08,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:08,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552044858] [2021-06-05 03:52:08,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:08,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:08,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:08,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:08,803 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 03:52:09,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:09,026 INFO L93 Difference]: Finished difference Result 32096 states and 160657 transitions. [2021-06-05 03:52:09,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:09,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:09,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:09,117 INFO L225 Difference]: With dead ends: 32096 [2021-06-05 03:52:09,117 INFO L226 Difference]: Without dead ends: 31331 [2021-06-05 03:52:09,118 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.3ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:10,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31331 states. [2021-06-05 03:52:10,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31331 to 13491. [2021-06-05 03:52:10,353 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 03:52:10,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13491 states to 13491 states and 71423 transitions. [2021-06-05 03:52:10,397 INFO L78 Accepts]: Start accepts. Automaton has 13491 states and 71423 transitions. Word has length 33 [2021-06-05 03:52:10,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:10,397 INFO L482 AbstractCegarLoop]: Abstraction has 13491 states and 71423 transitions. [2021-06-05 03:52:10,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:10,397 INFO L276 IsEmpty]: Start isEmpty. Operand 13491 states and 71423 transitions. [2021-06-05 03:52:10,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:10,422 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:10,422 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:10,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-06-05 03:52:10,422 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 03:52:10,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:10,422 INFO L82 PathProgramCache]: Analyzing trace with hash -834061125, now seen corresponding path program 330 times [2021-06-05 03:52:10,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:10,422 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580665544] [2021-06-05 03:52:10,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:10,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:10,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:10,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580665544] [2021-06-05 03:52:10,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580665544] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:10,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:10,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:10,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858250124] [2021-06-05 03:52:10,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:10,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:10,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:10,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:10,560 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 03:52:10,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:10,801 INFO L93 Difference]: Finished difference Result 32094 states and 160526 transitions. [2021-06-05 03:52:10,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:10,801 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:10,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:10,890 INFO L225 Difference]: With dead ends: 32094 [2021-06-05 03:52:10,891 INFO L226 Difference]: Without dead ends: 31143 [2021-06-05 03:52:10,891 INFO L777 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 03:52:11,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31143 states. [2021-06-05 03:52:12,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31143 to 13303. [2021-06-05 03:52:12,132 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 03:52:12,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13303 states to 13303 states and 70662 transitions. [2021-06-05 03:52:12,176 INFO L78 Accepts]: Start accepts. Automaton has 13303 states and 70662 transitions. Word has length 33 [2021-06-05 03:52:12,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:12,176 INFO L482 AbstractCegarLoop]: Abstraction has 13303 states and 70662 transitions. [2021-06-05 03:52:12,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:12,176 INFO L276 IsEmpty]: Start isEmpty. Operand 13303 states and 70662 transitions. [2021-06-05 03:52:12,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:12,202 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:12,202 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:12,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-06-05 03:52:12,202 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 03:52:12,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:12,203 INFO L82 PathProgramCache]: Analyzing trace with hash 635125849, now seen corresponding path program 331 times [2021-06-05 03:52:12,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:12,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520425940] [2021-06-05 03:52:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:12,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:12,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520425940] [2021-06-05 03:52:12,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520425940] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:12,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:12,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:12,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906849597] [2021-06-05 03:52:12,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:12,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:12,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:12,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:12,348 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 03:52:12,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:12,568 INFO L93 Difference]: Finished difference Result 32914 states and 164434 transitions. [2021-06-05 03:52:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:12,568 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 03:52:12,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:12,667 INFO L225 Difference]: With dead ends: 32914 [2021-06-05 03:52:12,667 INFO L226 Difference]: Without dead ends: 32020 [2021-06-05 03:52:12,667 INFO L777 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 03:52:13,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32020 states. [2021-06-05 03:52:13,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32020 to 13717. [2021-06-05 03:52:13,981 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 03:52:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13717 states to 13717 states and 72466 transitions. [2021-06-05 03:52:14,027 INFO L78 Accepts]: Start accepts. Automaton has 13717 states and 72466 transitions. Word has length 33 [2021-06-05 03:52:14,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:14,027 INFO L482 AbstractCegarLoop]: Abstraction has 13717 states and 72466 transitions. [2021-06-05 03:52:14,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 13717 states and 72466 transitions. [2021-06-05 03:52:14,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:14,054 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:14,055 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:14,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-06-05 03:52:14,055 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 03:52:14,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:14,055 INFO L82 PathProgramCache]: Analyzing trace with hash 154223803, now seen corresponding path program 332 times [2021-06-05 03:52:14,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:14,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984377306] [2021-06-05 03:52:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:14,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:14,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984377306] [2021-06-05 03:52:14,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984377306] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:14,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:14,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:14,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426958411] [2021-06-05 03:52:14,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:14,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:14,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:14,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:14,198 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 03:52:14,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:14,644 INFO L93 Difference]: Finished difference Result 32785 states and 163665 transitions. [2021-06-05 03:52:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:14,644 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:14,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:14,749 INFO L225 Difference]: With dead ends: 32785 [2021-06-05 03:52:14,750 INFO L226 Difference]: Without dead ends: 31765 [2021-06-05 03:52:14,750 INFO L777 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 03:52:15,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31765 states. [2021-06-05 03:52:15,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31765 to 13462. [2021-06-05 03:52:15,808 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 03:52:15,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13462 states to 13462 states and 71316 transitions. [2021-06-05 03:52:15,852 INFO L78 Accepts]: Start accepts. Automaton has 13462 states and 71316 transitions. Word has length 33 [2021-06-05 03:52:15,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:15,852 INFO L482 AbstractCegarLoop]: Abstraction has 13462 states and 71316 transitions. [2021-06-05 03:52:15,852 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 03:52:15,852 INFO L276 IsEmpty]: Start isEmpty. Operand 13462 states and 71316 transitions. [2021-06-05 03:52:15,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:15,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:15,878 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:15,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-06-05 03:52:15,878 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 03:52:15,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:15,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1950239685, now seen corresponding path program 333 times [2021-06-05 03:52:15,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:15,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118827255] [2021-06-05 03:52:15,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:16,077 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-06-05 03:52:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:16,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:16,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118827255] [2021-06-05 03:52:16,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118827255] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:16,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:16,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:16,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86104841] [2021-06-05 03:52:16,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:16,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:16,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:16,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:16,157 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 03:52:16,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:16,389 INFO L93 Difference]: Finished difference Result 32847 states and 164043 transitions. [2021-06-05 03:52:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:16,390 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 03:52:16,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:16,497 INFO L225 Difference]: With dead ends: 32847 [2021-06-05 03:52:16,497 INFO L226 Difference]: Without dead ends: 31953 [2021-06-05 03:52:16,497 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 285.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31953 states. [2021-06-05 03:52:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31953 to 13652. [2021-06-05 03:52:17,727 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 03:52:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13652 states to 13652 states and 72081 transitions. [2021-06-05 03:52:17,770 INFO L78 Accepts]: Start accepts. Automaton has 13652 states and 72081 transitions. Word has length 33 [2021-06-05 03:52:17,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:17,771 INFO L482 AbstractCegarLoop]: Abstraction has 13652 states and 72081 transitions. [2021-06-05 03:52:17,771 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 03:52:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 13652 states and 72081 transitions. [2021-06-05 03:52:17,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:17,797 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:17,797 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:17,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-06-05 03:52:17,797 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 03:52:17,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:17,797 INFO L82 PathProgramCache]: Analyzing trace with hash -857269189, now seen corresponding path program 334 times [2021-06-05 03:52:17,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:17,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586656413] [2021-06-05 03:52:17,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:17,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:17,935 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:17,935 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586656413] [2021-06-05 03:52:17,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586656413] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:17,935 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:17,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:17,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774431781] [2021-06-05 03:52:17,935 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:17,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:17,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:17,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:17,935 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 03:52:18,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:18,165 INFO L93 Difference]: Finished difference Result 32716 states and 163270 transitions. [2021-06-05 03:52:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:18,165 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 03:52:18,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:18,257 INFO L225 Difference]: With dead ends: 32716 [2021-06-05 03:52:18,257 INFO L226 Difference]: Without dead ends: 31763 [2021-06-05 03:52:18,258 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 165.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:18,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31763 states. [2021-06-05 03:52:19,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31763 to 13462. [2021-06-05 03:52:19,484 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 03:52:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13462 states to 13462 states and 71221 transitions. [2021-06-05 03:52:19,528 INFO L78 Accepts]: Start accepts. Automaton has 13462 states and 71221 transitions. Word has length 33 [2021-06-05 03:52:19,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:19,528 INFO L482 AbstractCegarLoop]: Abstraction has 13462 states and 71221 transitions. [2021-06-05 03:52:19,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:19,528 INFO L276 IsEmpty]: Start isEmpty. Operand 13462 states and 71221 transitions. [2021-06-05 03:52:19,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:19,554 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:19,554 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:19,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-06-05 03:52:19,554 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 03:52:19,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:19,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1555341341, now seen corresponding path program 335 times [2021-06-05 03:52:19,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:19,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823294952] [2021-06-05 03:52:19,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:19,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:19,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823294952] [2021-06-05 03:52:19,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823294952] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:19,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:19,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:19,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562182492] [2021-06-05 03:52:19,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:19,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:19,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:19,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:19,694 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 03:52:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:19,913 INFO L93 Difference]: Finished difference Result 32525 states and 162472 transitions. [2021-06-05 03:52:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:19,913 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 03:52:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:20,005 INFO L225 Difference]: With dead ends: 32525 [2021-06-05 03:52:20,005 INFO L226 Difference]: Without dead ends: 31760 [2021-06-05 03:52:20,005 INFO L777 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 03:52:20,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31760 states. [2021-06-05 03:52:21,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31760 to 13588. [2021-06-05 03:52:21,251 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 03:52:21,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13588 states to 13588 states and 71730 transitions. [2021-06-05 03:52:21,294 INFO L78 Accepts]: Start accepts. Automaton has 13588 states and 71730 transitions. Word has length 33 [2021-06-05 03:52:21,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:21,295 INFO L482 AbstractCegarLoop]: Abstraction has 13588 states and 71730 transitions. [2021-06-05 03:52:21,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:21,295 INFO L276 IsEmpty]: Start isEmpty. Operand 13588 states and 71730 transitions. [2021-06-05 03:52:21,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:21,320 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:21,320 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:21,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-06-05 03:52:21,320 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 03:52:21,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:21,320 INFO L82 PathProgramCache]: Analyzing trace with hash -467720197, now seen corresponding path program 336 times [2021-06-05 03:52:21,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:21,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066390396] [2021-06-05 03:52:21,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:21,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:21,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066390396] [2021-06-05 03:52:21,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066390396] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:21,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:21,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:21,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224029529] [2021-06-05 03:52:21,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:21,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:21,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:21,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:21,461 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 03:52:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:21,690 INFO L93 Difference]: Finished difference Result 32523 states and 162341 transitions. [2021-06-05 03:52:21,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:21,690 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 03:52:21,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:21,790 INFO L225 Difference]: With dead ends: 32523 [2021-06-05 03:52:21,790 INFO L226 Difference]: Without dead ends: 31380 [2021-06-05 03:52:21,790 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:22,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31380 states. [2021-06-05 03:52:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31380 to 13208. [2021-06-05 03:52:23,031 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 03:52:23,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 70280 transitions. [2021-06-05 03:52:23,073 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 70280 transitions. Word has length 33 [2021-06-05 03:52:23,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:23,073 INFO L482 AbstractCegarLoop]: Abstraction has 13208 states and 70280 transitions. [2021-06-05 03:52:23,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:23,073 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 70280 transitions. [2021-06-05 03:52:23,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:23,098 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:23,098 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:23,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-06-05 03:52:23,098 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 03:52:23,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:23,099 INFO L82 PathProgramCache]: Analyzing trace with hash 237463863, now seen corresponding path program 337 times [2021-06-05 03:52:23,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:23,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510678190] [2021-06-05 03:52:23,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:23,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:23,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510678190] [2021-06-05 03:52:23,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510678190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:23,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:23,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:23,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745894604] [2021-06-05 03:52:23,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:23,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:23,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:23,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:23,268 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 03:52:23,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:23,705 INFO L93 Difference]: Finished difference Result 32584 states and 163211 transitions. [2021-06-05 03:52:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:23,706 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 03:52:23,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:23,817 INFO L225 Difference]: With dead ends: 32584 [2021-06-05 03:52:23,817 INFO L226 Difference]: Without dead ends: 31833 [2021-06-05 03:52:23,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:24,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31833 states. [2021-06-05 03:52:24,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31833 to 13594. [2021-06-05 03:52:24,880 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 03:52:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13594 states to 13594 states and 72171 transitions. [2021-06-05 03:52:24,926 INFO L78 Accepts]: Start accepts. Automaton has 13594 states and 72171 transitions. Word has length 33 [2021-06-05 03:52:24,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:24,927 INFO L482 AbstractCegarLoop]: Abstraction has 13594 states and 72171 transitions. [2021-06-05 03:52:24,927 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:24,927 INFO L276 IsEmpty]: Start isEmpty. Operand 13594 states and 72171 transitions. [2021-06-05 03:52:24,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:24,955 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:24,955 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:24,955 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-06-05 03:52:24,955 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 03:52:24,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:24,956 INFO L82 PathProgramCache]: Analyzing trace with hash -380059495, now seen corresponding path program 338 times [2021-06-05 03:52:24,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:24,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624606245] [2021-06-05 03:52:24,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:25,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:25,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:25,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624606245] [2021-06-05 03:52:25,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624606245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:25,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:25,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:25,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101710601] [2021-06-05 03:52:25,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:25,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:25,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:25,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:25,128 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 03:52:25,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:25,519 INFO L93 Difference]: Finished difference Result 32727 states and 163714 transitions. [2021-06-05 03:52:25,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:25,519 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:25,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:25,616 INFO L225 Difference]: With dead ends: 32727 [2021-06-05 03:52:25,616 INFO L226 Difference]: Without dead ends: 31649 [2021-06-05 03:52:25,616 INFO L777 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 03:52:26,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31649 states. [2021-06-05 03:52:26,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31649 to 13410. [2021-06-05 03:52:26,704 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 03:52:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13410 states to 13410 states and 71267 transitions. [2021-06-05 03:52:26,981 INFO L78 Accepts]: Start accepts. Automaton has 13410 states and 71267 transitions. Word has length 33 [2021-06-05 03:52:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:26,981 INFO L482 AbstractCegarLoop]: Abstraction has 13410 states and 71267 transitions. [2021-06-05 03:52:26,982 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 03:52:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 13410 states and 71267 transitions. [2021-06-05 03:52:27,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:27,009 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:27,009 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:27,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-06-05 03:52:27,010 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 03:52:27,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:27,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1947065625, now seen corresponding path program 339 times [2021-06-05 03:52:27,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:27,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923053738] [2021-06-05 03:52:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:27,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:27,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:27,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923053738] [2021-06-05 03:52:27,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923053738] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:27,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:27,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:27,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890155220] [2021-06-05 03:52:27,177 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:27,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:27,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:27,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:27,177 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 03:52:27,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:27,415 INFO L93 Difference]: Finished difference Result 32391 states and 162221 transitions. [2021-06-05 03:52:27,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:27,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:27,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:27,511 INFO L225 Difference]: With dead ends: 32391 [2021-06-05 03:52:27,511 INFO L226 Difference]: Without dead ends: 31640 [2021-06-05 03:52:27,512 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 195.2ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:28,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31640 states. [2021-06-05 03:52:28,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31640 to 13530. [2021-06-05 03:52:28,791 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 03:52:28,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 71759 transitions. [2021-06-05 03:52:28,836 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 71759 transitions. Word has length 33 [2021-06-05 03:52:28,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:28,837 INFO L482 AbstractCegarLoop]: Abstraction has 13530 states and 71759 transitions. [2021-06-05 03:52:28,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:28,837 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 71759 transitions. [2021-06-05 03:52:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:28,864 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:28,864 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:28,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-06-05 03:52:28,864 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 03:52:28,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:28,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1391552487, now seen corresponding path program 340 times [2021-06-05 03:52:28,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:28,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612817578] [2021-06-05 03:52:28,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:29,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:29,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:29,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612817578] [2021-06-05 03:52:29,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612817578] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:29,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:29,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:29,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062824883] [2021-06-05 03:52:29,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:29,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:29,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:29,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:29,034 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 03:52:29,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:29,284 INFO L93 Difference]: Finished difference Result 32405 states and 162146 transitions. [2021-06-05 03:52:29,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:29,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:29,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:29,383 INFO L225 Difference]: With dead ends: 32405 [2021-06-05 03:52:29,383 INFO L226 Difference]: Without dead ends: 31520 [2021-06-05 03:52:29,383 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 197.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:30,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31520 states. [2021-06-05 03:52:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31520 to 13410. [2021-06-05 03:52:30,699 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 03:52:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13410 states to 13410 states and 71207 transitions. [2021-06-05 03:52:30,745 INFO L78 Accepts]: Start accepts. Automaton has 13410 states and 71207 transitions. Word has length 33 [2021-06-05 03:52:30,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:30,745 INFO L482 AbstractCegarLoop]: Abstraction has 13410 states and 71207 transitions. [2021-06-05 03:52:30,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand 13410 states and 71207 transitions. [2021-06-05 03:52:30,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:30,773 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:30,773 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:30,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-06-05 03:52:30,773 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 03:52:30,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:30,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1423003909, now seen corresponding path program 341 times [2021-06-05 03:52:30,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:30,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532270789] [2021-06-05 03:52:30,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:30,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:30,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532270789] [2021-06-05 03:52:30,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532270789] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:30,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:30,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:30,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315202643] [2021-06-05 03:52:30,926 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:30,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:30,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:30,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:30,927 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 03:52:31,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:31,133 INFO L93 Difference]: Finished difference Result 32812 states and 164009 transitions. [2021-06-05 03:52:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:31,133 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 03:52:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:31,225 INFO L225 Difference]: With dead ends: 32812 [2021-06-05 03:52:31,225 INFO L226 Difference]: Without dead ends: 31918 [2021-06-05 03:52:31,225 INFO L777 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 03:52:32,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31918 states. [2021-06-05 03:52:32,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31918 to 13665. [2021-06-05 03:52:32,562 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 03:52:32,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13665 states to 13665 states and 72230 transitions. [2021-06-05 03:52:32,606 INFO L78 Accepts]: Start accepts. Automaton has 13665 states and 72230 transitions. Word has length 33 [2021-06-05 03:52:32,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:32,606 INFO L482 AbstractCegarLoop]: Abstraction has 13665 states and 72230 transitions. [2021-06-05 03:52:32,606 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 03:52:32,606 INFO L276 IsEmpty]: Start isEmpty. Operand 13665 states and 72230 transitions. [2021-06-05 03:52:32,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:32,631 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:32,631 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:32,631 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-06-05 03:52:32,631 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 03:52:32,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:32,631 INFO L82 PathProgramCache]: Analyzing trace with hash 848901849, now seen corresponding path program 342 times [2021-06-05 03:52:32,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:32,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697597753] [2021-06-05 03:52:32,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:32,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:32,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697597753] [2021-06-05 03:52:32,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697597753] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:32,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:32,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:32,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677285720] [2021-06-05 03:52:32,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:32,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:32,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:32,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:32,783 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 03:52:33,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:33,026 INFO L93 Difference]: Finished difference Result 32683 states and 163240 transitions. [2021-06-05 03:52:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:33,026 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:33,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:33,382 INFO L225 Difference]: With dead ends: 32683 [2021-06-05 03:52:33,382 INFO L226 Difference]: Without dead ends: 31539 [2021-06-05 03:52:33,382 INFO L777 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 03:52:34,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31539 states. [2021-06-05 03:52:34,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31539 to 13286. [2021-06-05 03:52:34,400 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 03:52:34,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 70641 transitions. [2021-06-05 03:52:34,442 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 70641 transitions. Word has length 33 [2021-06-05 03:52:34,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:34,443 INFO L482 AbstractCegarLoop]: Abstraction has 13286 states and 70641 transitions. [2021-06-05 03:52:34,443 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:34,443 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 70641 transitions. [2021-06-05 03:52:34,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:34,467 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:34,467 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:34,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-06-05 03:52:34,467 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 03:52:34,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:34,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1807717223, now seen corresponding path program 343 times [2021-06-05 03:52:34,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:34,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443384303] [2021-06-05 03:52:34,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:34,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:34,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:34,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443384303] [2021-06-05 03:52:34,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443384303] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:34,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:34,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:34,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897451861] [2021-06-05 03:52:34,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:34,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:34,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:34,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:34,619 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 03:52:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:35,046 INFO L93 Difference]: Finished difference Result 32485 states and 162741 transitions. [2021-06-05 03:52:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:35,047 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:35,139 INFO L225 Difference]: With dead ends: 32485 [2021-06-05 03:52:35,139 INFO L226 Difference]: Without dead ends: 31734 [2021-06-05 03:52:35,139 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 186.5ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:35,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31734 states. [2021-06-05 03:52:36,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31734 to 13562. [2021-06-05 03:52:36,192 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 03:52:36,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13562 states to 13562 states and 71965 transitions. [2021-06-05 03:52:36,483 INFO L78 Accepts]: Start accepts. Automaton has 13562 states and 71965 transitions. Word has length 33 [2021-06-05 03:52:36,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:36,483 INFO L482 AbstractCegarLoop]: Abstraction has 13562 states and 71965 transitions. [2021-06-05 03:52:36,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:36,483 INFO L276 IsEmpty]: Start isEmpty. Operand 13562 states and 71965 transitions. [2021-06-05 03:52:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:36,509 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:36,509 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:36,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-06-05 03:52:36,509 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 03:52:36,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:36,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1869726715, now seen corresponding path program 344 times [2021-06-05 03:52:36,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:36,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691450792] [2021-06-05 03:52:36,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:36,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:36,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691450792] [2021-06-05 03:52:36,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691450792] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:36,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:36,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:36,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586947565] [2021-06-05 03:52:36,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:36,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:36,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:36,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:36,664 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 03:52:36,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:36,888 INFO L93 Difference]: Finished difference Result 32628 states and 163244 transitions. [2021-06-05 03:52:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:36,889 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 03:52:36,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:36,987 INFO L225 Difference]: With dead ends: 32628 [2021-06-05 03:52:36,987 INFO L226 Difference]: Without dead ends: 31550 [2021-06-05 03:52:36,987 INFO L777 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 03:52:37,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31550 states. [2021-06-05 03:52:38,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31550 to 13378. [2021-06-05 03:52:38,255 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 03:52:38,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 71061 transitions. [2021-06-05 03:52:38,303 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 71061 transitions. Word has length 33 [2021-06-05 03:52:38,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:38,303 INFO L482 AbstractCegarLoop]: Abstraction has 13378 states and 71061 transitions. [2021-06-05 03:52:38,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 71061 transitions. [2021-06-05 03:52:38,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:38,332 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:38,332 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:38,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-06-05 03:52:38,332 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 03:52:38,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:38,332 INFO L82 PathProgramCache]: Analyzing trace with hash 564909209, now seen corresponding path program 345 times [2021-06-05 03:52:38,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:38,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554772554] [2021-06-05 03:52:38,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:38,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:38,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554772554] [2021-06-05 03:52:38,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554772554] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:38,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:38,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:38,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158335868] [2021-06-05 03:52:38,473 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:38,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:38,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:38,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:38,473 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 03:52:38,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:38,720 INFO L93 Difference]: Finished difference Result 32290 states and 161746 transitions. [2021-06-05 03:52:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:38,720 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:38,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:38,816 INFO L225 Difference]: With dead ends: 32290 [2021-06-05 03:52:38,816 INFO L226 Difference]: Without dead ends: 31539 [2021-06-05 03:52:38,817 INFO L777 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 03:52:39,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31539 states. [2021-06-05 03:52:40,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31539 to 13498. [2021-06-05 03:52:40,081 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 03:52:40,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13498 states to 13498 states and 71553 transitions. [2021-06-05 03:52:40,128 INFO L78 Accepts]: Start accepts. Automaton has 13498 states and 71553 transitions. Word has length 33 [2021-06-05 03:52:40,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:40,128 INFO L482 AbstractCegarLoop]: Abstraction has 13498 states and 71553 transitions. [2021-06-05 03:52:40,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:40,128 INFO L276 IsEmpty]: Start isEmpty. Operand 13498 states and 71553 transitions. [2021-06-05 03:52:40,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:40,156 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:40,156 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:40,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-06-05 03:52:40,156 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 03:52:40,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:40,157 INFO L82 PathProgramCache]: Analyzing trace with hash 818249625, now seen corresponding path program 346 times [2021-06-05 03:52:40,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:40,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972376628] [2021-06-05 03:52:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:40,297 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 03:52:40,297 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:40,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972376628] [2021-06-05 03:52:40,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972376628] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:40,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:40,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:40,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531064277] [2021-06-05 03:52:40,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:40,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:40,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:40,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:40,298 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 03:52:40,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:40,531 INFO L93 Difference]: Finished difference Result 32302 states and 161666 transitions. [2021-06-05 03:52:40,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:40,531 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:40,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:40,629 INFO L225 Difference]: With dead ends: 32302 [2021-06-05 03:52:40,629 INFO L226 Difference]: Without dead ends: 31419 [2021-06-05 03:52:40,630 INFO L777 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 03:52:41,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31419 states. [2021-06-05 03:52:41,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31419 to 13378. [2021-06-05 03:52:41,891 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 03:52:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 71001 transitions. [2021-06-05 03:52:41,935 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 71001 transitions. Word has length 33 [2021-06-05 03:52:41,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:41,935 INFO L482 AbstractCegarLoop]: Abstraction has 13378 states and 71001 transitions. [2021-06-05 03:52:41,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:41,935 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 71001 transitions. [2021-06-05 03:52:41,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:41,961 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:41,961 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:41,961 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-06-05 03:52:41,961 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 03:52:41,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:41,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1489806971, now seen corresponding path program 347 times [2021-06-05 03:52:41,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:41,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643409309] [2021-06-05 03:52:41,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:42,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:42,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643409309] [2021-06-05 03:52:42,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643409309] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:42,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:42,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:42,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592505141] [2021-06-05 03:52:42,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:42,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:42,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:42,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:42,101 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 03:52:42,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:42,314 INFO L93 Difference]: Finished difference Result 32646 states and 163275 transitions. [2021-06-05 03:52:42,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:42,315 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:42,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:42,410 INFO L225 Difference]: With dead ends: 32646 [2021-06-05 03:52:42,410 INFO L226 Difference]: Without dead ends: 31752 [2021-06-05 03:52:42,410 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:43,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31752 states. [2021-06-05 03:52:43,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31752 to 13568. [2021-06-05 03:52:43,716 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 03:52:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13568 states to 13568 states and 71766 transitions. [2021-06-05 03:52:43,760 INFO L78 Accepts]: Start accepts. Automaton has 13568 states and 71766 transitions. Word has length 33 [2021-06-05 03:52:43,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:43,760 INFO L482 AbstractCegarLoop]: Abstraction has 13568 states and 71766 transitions. [2021-06-05 03:52:43,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:43,760 INFO L276 IsEmpty]: Start isEmpty. Operand 13568 states and 71766 transitions. [2021-06-05 03:52:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:43,786 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:43,787 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:43,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-06-05 03:52:43,787 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 03:52:43,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:43,787 INFO L82 PathProgramCache]: Analyzing trace with hash -543205671, now seen corresponding path program 348 times [2021-06-05 03:52:43,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:43,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912115022] [2021-06-05 03:52:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:43,926 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:43,926 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912115022] [2021-06-05 03:52:43,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912115022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:43,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:43,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:43,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120117866] [2021-06-05 03:52:43,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:43,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:43,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:43,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:43,927 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 03:52:44,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:44,332 INFO L93 Difference]: Finished difference Result 32515 states and 162502 transitions. [2021-06-05 03:52:44,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:44,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:44,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:44,430 INFO L225 Difference]: With dead ends: 32515 [2021-06-05 03:52:44,430 INFO L226 Difference]: Without dead ends: 31470 [2021-06-05 03:52:44,430 INFO L777 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 03:52:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31470 states. [2021-06-05 03:52:45,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31470 to 13286. [2021-06-05 03:52:45,473 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 03:52:45,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 70595 transitions. [2021-06-05 03:52:45,517 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 70595 transitions. Word has length 33 [2021-06-05 03:52:45,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:45,517 INFO L482 AbstractCegarLoop]: Abstraction has 13286 states and 70595 transitions. [2021-06-05 03:52:45,517 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 03:52:45,518 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 70595 transitions. [2021-06-05 03:52:45,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:45,544 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:45,544 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:45,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-06-05 03:52:45,544 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 03:52:45,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:45,544 INFO L82 PathProgramCache]: Analyzing trace with hash -198711301, now seen corresponding path program 349 times [2021-06-05 03:52:45,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:45,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125094319] [2021-06-05 03:52:45,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:45,696 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-06-05 03:52:45,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:45,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:45,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125094319] [2021-06-05 03:52:45,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125094319] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:45,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:45,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:45,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372043531] [2021-06-05 03:52:45,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:45,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:45,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:45,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:45,855 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 03:52:46,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:46,154 INFO L93 Difference]: Finished difference Result 32003 states and 160403 transitions. [2021-06-05 03:52:46,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:46,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:46,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:46,245 INFO L225 Difference]: With dead ends: 32003 [2021-06-05 03:52:46,245 INFO L226 Difference]: Without dead ends: 31252 [2021-06-05 03:52:46,245 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 348.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:46,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31252 states. [2021-06-05 03:52:47,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31252 to 13466. [2021-06-05 03:52:47,440 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 03:52:47,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71423 transitions. [2021-06-05 03:52:47,484 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71423 transitions. Word has length 33 [2021-06-05 03:52:47,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:47,484 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71423 transitions. [2021-06-05 03:52:47,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:47,484 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71423 transitions. [2021-06-05 03:52:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:47,509 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:47,510 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:47,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-06-05 03:52:47,510 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 03:52:47,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:47,510 INFO L82 PathProgramCache]: Analyzing trace with hash 757637883, now seen corresponding path program 350 times [2021-06-05 03:52:47,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:47,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181764073] [2021-06-05 03:52:47,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:47,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:47,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181764073] [2021-06-05 03:52:47,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181764073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:47,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:47,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:47,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366712206] [2021-06-05 03:52:47,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:47,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:47,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:47,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:47,665 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 03:52:47,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:47,916 INFO L93 Difference]: Finished difference Result 32017 states and 160328 transitions. [2021-06-05 03:52:47,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:47,916 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 03:52:47,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:48,011 INFO L225 Difference]: With dead ends: 32017 [2021-06-05 03:52:48,011 INFO L226 Difference]: Without dead ends: 31132 [2021-06-05 03:52:48,011 INFO L777 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 03:52:48,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31132 states. [2021-06-05 03:52:49,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31132 to 13346. [2021-06-05 03:52:49,198 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 03:52:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70871 transitions. [2021-06-05 03:52:49,242 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70871 transitions. Word has length 33 [2021-06-05 03:52:49,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:49,242 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70871 transitions. [2021-06-05 03:52:49,242 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 03:52:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70871 transitions. [2021-06-05 03:52:49,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:49,268 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:49,268 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:49,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-06-05 03:52:49,268 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 03:52:49,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:49,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1259335769, now seen corresponding path program 351 times [2021-06-05 03:52:49,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:49,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084592295] [2021-06-05 03:52:49,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:49,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:49,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:49,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084592295] [2021-06-05 03:52:49,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084592295] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:49,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:49,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:49,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205198534] [2021-06-05 03:52:49,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:49,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:49,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:49,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:49,406 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 03:52:49,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:49,632 INFO L93 Difference]: Finished difference Result 32001 states and 160338 transitions. [2021-06-05 03:52:49,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:49,632 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:49,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:49,721 INFO L225 Difference]: With dead ends: 32001 [2021-06-05 03:52:49,721 INFO L226 Difference]: Without dead ends: 31250 [2021-06-05 03:52:49,722 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:50,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31250 states. [2021-06-05 03:52:50,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31250 to 13466. [2021-06-05 03:52:50,983 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 03:52:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13466 states to 13466 states and 71363 transitions. [2021-06-05 03:52:51,026 INFO L78 Accepts]: Start accepts. Automaton has 13466 states and 71363 transitions. Word has length 33 [2021-06-05 03:52:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:51,026 INFO L482 AbstractCegarLoop]: Abstraction has 13466 states and 71363 transitions. [2021-06-05 03:52:51,026 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 03:52:51,026 INFO L276 IsEmpty]: Start isEmpty. Operand 13466 states and 71363 transitions. [2021-06-05 03:52:51,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:51,052 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:51,052 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:51,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-06-05 03:52:51,053 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 03:52:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:51,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1226931461, now seen corresponding path program 352 times [2021-06-05 03:52:51,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:51,053 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128687586] [2021-06-05 03:52:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:51,191 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 03:52:51,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:51,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128687586] [2021-06-05 03:52:51,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128687586] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:51,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:51,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:51,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130844422] [2021-06-05 03:52:51,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:51,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:51,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:51,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:51,192 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 03:52:51,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:51,434 INFO L93 Difference]: Finished difference Result 32013 states and 160258 transitions. [2021-06-05 03:52:51,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:51,434 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:51,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:51,537 INFO L225 Difference]: With dead ends: 32013 [2021-06-05 03:52:51,537 INFO L226 Difference]: Without dead ends: 31130 [2021-06-05 03:52:51,538 INFO L777 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 03:52:52,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31130 states. [2021-06-05 03:52:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31130 to 13346. [2021-06-05 03:52:52,825 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 03:52:52,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13346 states to 13346 states and 70811 transitions. [2021-06-05 03:52:52,870 INFO L78 Accepts]: Start accepts. Automaton has 13346 states and 70811 transitions. Word has length 33 [2021-06-05 03:52:52,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:52,870 INFO L482 AbstractCegarLoop]: Abstraction has 13346 states and 70811 transitions. [2021-06-05 03:52:52,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:52,870 INFO L276 IsEmpty]: Start isEmpty. Operand 13346 states and 70811 transitions. [2021-06-05 03:52:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:52,897 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:52,897 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:52,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-06-05 03:52:52,897 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 03:52:52,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:52,897 INFO L82 PathProgramCache]: Analyzing trace with hash -595358213, now seen corresponding path program 353 times [2021-06-05 03:52:52,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:52,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388338942] [2021-06-05 03:52:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:53,036 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:53,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388338942] [2021-06-05 03:52:53,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388338942] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:53,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:53,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:53,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283641842] [2021-06-05 03:52:53,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:53,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:53,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:53,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:53,037 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 03:52:53,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:53,514 INFO L93 Difference]: Finished difference Result 32035 states and 160391 transitions. [2021-06-05 03:52:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:53,515 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:53,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:53,626 INFO L225 Difference]: With dead ends: 32035 [2021-06-05 03:52:53,627 INFO L226 Difference]: Without dead ends: 31270 [2021-06-05 03:52:53,627 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 167.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:54,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31270 states. [2021-06-05 03:52:54,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31270 to 13472. [2021-06-05 03:52:54,682 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 03:52:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13472 states to 13472 states and 71320 transitions. [2021-06-05 03:52:54,730 INFO L78 Accepts]: Start accepts. Automaton has 13472 states and 71320 transitions. Word has length 33 [2021-06-05 03:52:54,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:54,731 INFO L482 AbstractCegarLoop]: Abstraction has 13472 states and 71320 transitions. [2021-06-05 03:52:54,731 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 03:52:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 13472 states and 71320 transitions. [2021-06-05 03:52:54,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:54,760 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:54,760 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:54,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-06-05 03:52:54,760 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 03:52:54,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:54,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1676547545, now seen corresponding path program 354 times [2021-06-05 03:52:54,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:54,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090906764] [2021-06-05 03:52:54,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:54,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:54,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090906764] [2021-06-05 03:52:54,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090906764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:54,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:54,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:54,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112867334] [2021-06-05 03:52:54,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:54,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:54,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:54,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:54,903 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 03:52:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:55,310 INFO L93 Difference]: Finished difference Result 32033 states and 160260 transitions. [2021-06-05 03:52:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:55,311 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:55,411 INFO L225 Difference]: With dead ends: 32033 [2021-06-05 03:52:55,411 INFO L226 Difference]: Without dead ends: 31084 [2021-06-05 03:52:55,411 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 169.7ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:56,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31084 states. [2021-06-05 03:52:56,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31084 to 13286. [2021-06-05 03:52:56,452 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 03:52:56,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 70565 transitions. [2021-06-05 03:52:56,728 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 70565 transitions. Word has length 33 [2021-06-05 03:52:56,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:56,728 INFO L482 AbstractCegarLoop]: Abstraction has 13286 states and 70565 transitions. [2021-06-05 03:52:56,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:52:56,728 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 70565 transitions. [2021-06-05 03:52:56,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:56,758 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:56,758 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:56,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-06-05 03:52:56,758 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 03:52:56,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:56,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1229165661, now seen corresponding path program 355 times [2021-06-05 03:52:56,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:56,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638820382] [2021-06-05 03:52:56,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:56,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:56,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638820382] [2021-06-05 03:52:56,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638820382] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:56,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:56,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:56,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46547947] [2021-06-05 03:52:56,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:56,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:56,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:56,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:56,901 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 03:52:57,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:57,109 INFO L93 Difference]: Finished difference Result 32871 states and 164234 transitions. [2021-06-05 03:52:57,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:57,109 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:57,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:57,206 INFO L225 Difference]: With dead ends: 32871 [2021-06-05 03:52:57,206 INFO L226 Difference]: Without dead ends: 31977 [2021-06-05 03:52:57,206 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 150.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:57,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31977 states. [2021-06-05 03:52:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31977 to 13700. [2021-06-05 03:52:58,465 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 03:52:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13700 states to 13700 states and 72369 transitions. [2021-06-05 03:52:58,509 INFO L78 Accepts]: Start accepts. Automaton has 13700 states and 72369 transitions. Word has length 33 [2021-06-05 03:52:58,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:52:58,509 INFO L482 AbstractCegarLoop]: Abstraction has 13700 states and 72369 transitions. [2021-06-05 03:52:58,509 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 03:52:58,509 INFO L276 IsEmpty]: Start isEmpty. Operand 13700 states and 72369 transitions. [2021-06-05 03:52:58,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:52:58,535 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:52:58,535 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:52:58,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-06-05 03:52:58,535 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 03:52:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:52:58,536 INFO L82 PathProgramCache]: Analyzing trace with hash -793895877, now seen corresponding path program 356 times [2021-06-05 03:52:58,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:52:58,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187215224] [2021-06-05 03:52:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:52:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:52:58,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:52:58,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:52:58,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187215224] [2021-06-05 03:52:58,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187215224] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:52:58,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:52:58,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:52:58,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562472674] [2021-06-05 03:52:58,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:52:58,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:52:58,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:52:58,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:52:58,675 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 03:52:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:52:58,924 INFO L93 Difference]: Finished difference Result 32742 states and 163465 transitions. [2021-06-05 03:52:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:52:58,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:52:58,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:52:59,018 INFO L225 Difference]: With dead ends: 32742 [2021-06-05 03:52:59,018 INFO L226 Difference]: Without dead ends: 31722 [2021-06-05 03:52:59,018 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.4ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:52:59,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31722 states. [2021-06-05 03:53:00,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31722 to 13445. [2021-06-05 03:53:00,245 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 03:53:00,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 71219 transitions. [2021-06-05 03:53:00,287 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 71219 transitions. Word has length 33 [2021-06-05 03:53:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:53:00,287 INFO L482 AbstractCegarLoop]: Abstraction has 13445 states and 71219 transitions. [2021-06-05 03:53:00,288 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 03:53:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 71219 transitions. [2021-06-05 03:53:00,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:53:00,312 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:53:00,312 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:53:00,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-06-05 03:53:00,313 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 03:53:00,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:53:00,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1607754565, now seen corresponding path program 357 times [2021-06-05 03:53:00,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:53:00,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827180167] [2021-06-05 03:53:00,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:53:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:53:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:53:00,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:53:00,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827180167] [2021-06-05 03:53:00,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827180167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:53:00,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:53:00,454 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:53:00,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423791403] [2021-06-05 03:53:00,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:53:00,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:53:00,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:53:00,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:53:00,454 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 03:53:00,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:53:00,658 INFO L93 Difference]: Finished difference Result 32804 states and 163843 transitions. [2021-06-05 03:53:00,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:53:00,658 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:53:00,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:53:00,750 INFO L225 Difference]: With dead ends: 32804 [2021-06-05 03:53:00,750 INFO L226 Difference]: Without dead ends: 31910 [2021-06-05 03:53:00,750 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 148.9ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:53:01,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31910 states. [2021-06-05 03:53:01,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31910 to 13635. [2021-06-05 03:53:01,981 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 03:53:02,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13635 states to 13635 states and 71984 transitions. [2021-06-05 03:53:02,023 INFO L78 Accepts]: Start accepts. Automaton has 13635 states and 71984 transitions. Word has length 33 [2021-06-05 03:53:02,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:53:02,023 INFO L482 AbstractCegarLoop]: Abstraction has 13635 states and 71984 transitions. [2021-06-05 03:53:02,023 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 03:53:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 13635 states and 71984 transitions. [2021-06-05 03:53:02,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:53:02,048 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:53:02,048 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:53:02,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-06-05 03:53:02,048 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 03:53:02,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:53:02,048 INFO L82 PathProgramCache]: Analyzing trace with hash -2085407557, now seen corresponding path program 358 times [2021-06-05 03:53:02,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:53:02,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749469340] [2021-06-05 03:53:02,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:53:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:53:02,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:53:02,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:53:02,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749469340] [2021-06-05 03:53:02,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749469340] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:53:02,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:53:02,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:53:02,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706802518] [2021-06-05 03:53:02,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:53:02,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:53:02,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:53:02,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:53:02,189 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 03:53:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:53:02,420 INFO L93 Difference]: Finished difference Result 32673 states and 163070 transitions. [2021-06-05 03:53:02,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:53:02,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:53:02,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:53:02,752 INFO L225 Difference]: With dead ends: 32673 [2021-06-05 03:53:02,752 INFO L226 Difference]: Without dead ends: 31720 [2021-06-05 03:53:02,753 INFO L777 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 03:53:03,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31720 states. [2021-06-05 03:53:03,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31720 to 13445. [2021-06-05 03:53:03,809 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 03:53:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 71124 transitions. [2021-06-05 03:53:03,854 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 71124 transitions. Word has length 33 [2021-06-05 03:53:03,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:53:03,854 INFO L482 AbstractCegarLoop]: Abstraction has 13445 states and 71124 transitions. [2021-06-05 03:53:03,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:53:03,854 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 71124 transitions. [2021-06-05 03:53:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:53:03,881 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:53:03,881 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:53:03,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-06-05 03:53:03,881 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 03:53:03,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:53:03,881 INFO L82 PathProgramCache]: Analyzing trace with hash -308925159, now seen corresponding path program 359 times [2021-06-05 03:53:03,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:53:03,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711809443] [2021-06-05 03:53:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:53:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:53:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:53:04,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:53:04,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711809443] [2021-06-05 03:53:04,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711809443] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:53:04,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:53:04,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:53:04,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345560643] [2021-06-05 03:53:04,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:53:04,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:53:04,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:53:04,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:53:04,024 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 03:53:04,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:53:04,523 INFO L93 Difference]: Finished difference Result 32482 states and 162272 transitions. [2021-06-05 03:53:04,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:53:04,524 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:53:04,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:53:04,631 INFO L225 Difference]: With dead ends: 32482 [2021-06-05 03:53:04,632 INFO L226 Difference]: Without dead ends: 31717 [2021-06-05 03:53:04,632 INFO L777 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 03:53:05,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31717 states. [2021-06-05 03:53:05,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31717 to 13571. [2021-06-05 03:53:05,706 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 03:53:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13571 states to 13571 states and 71633 transitions. [2021-06-05 03:53:05,750 INFO L78 Accepts]: Start accepts. Automaton has 13571 states and 71633 transitions. Word has length 33 [2021-06-05 03:53:05,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:53:05,750 INFO L482 AbstractCegarLoop]: Abstraction has 13571 states and 71633 transitions. [2021-06-05 03:53:05,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:53:05,750 INFO L276 IsEmpty]: Start isEmpty. Operand 13571 states and 71633 transitions. [2021-06-05 03:53:05,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:53:05,928 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:53:05,928 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:53:05,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-06-05 03:53:05,928 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 03:53:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:53:05,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1400676603, now seen corresponding path program 360 times [2021-06-05 03:53:05,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:53:05,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414148531] [2021-06-05 03:53:05,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:53:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:53:06,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:53:06,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:53:06,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414148531] [2021-06-05 03:53:06,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414148531] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:53:06,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:53:06,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:53:06,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378631999] [2021-06-05 03:53:06,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:53:06,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:53:06,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:53:06,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:53:06,070 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 03:53:06,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:53:06,338 INFO L93 Difference]: Finished difference Result 32480 states and 162141 transitions. [2021-06-05 03:53:06,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:53:06,338 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 03:53:06,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:53:06,438 INFO L225 Difference]: With dead ends: 32480 [2021-06-05 03:53:06,438 INFO L226 Difference]: Without dead ends: 31299 [2021-06-05 03:53:06,438 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.8ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:53:07,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31299 states. [2021-06-05 03:53:07,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31299 to 13153. [2021-06-05 03:53:07,649 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 03:53:07,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13153 states to 13153 states and 70090 transitions. [2021-06-05 03:53:07,696 INFO L78 Accepts]: Start accepts. Automaton has 13153 states and 70090 transitions. Word has length 33 [2021-06-05 03:53:07,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:53:07,697 INFO L482 AbstractCegarLoop]: Abstraction has 13153 states and 70090 transitions. [2021-06-05 03:53:07,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:53:07,697 INFO L276 IsEmpty]: Start isEmpty. Operand 13153 states and 70090 transitions. [2021-06-05 03:53:07,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-06-05 03:53:07,723 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:53:07,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:53:07,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-06-05 03:53:07,723 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 03:53:07,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:53:07,723 INFO L82 PathProgramCache]: Analyzing trace with hash 60744253, now seen corresponding path program 361 times [2021-06-05 03:53:07,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:53:07,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057133002] [2021-06-05 03:53:07,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:53:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:53:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:53:07,863 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:53:07,863 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057133002] [2021-06-05 03:53:07,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057133002] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:53:07,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:53:07,863 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 03:53:07,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359189392] [2021-06-05 03:53:07,863 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 03:53:07,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:53:07,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 03:53:07,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:53:07,864 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 03:53:08,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:53:08,103 INFO L93 Difference]: Finished difference Result 30141 states and 151826 transitions. [2021-06-05 03:53:08,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 03:53:08,104 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-06-05 03:53:08,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:53:08,193 INFO L225 Difference]: With dead ends: 30141 [2021-06-05 03:53:08,194 INFO L226 Difference]: Without dead ends: 29382 [2021-06-05 03:53:08,194 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 168.6ms TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-06-05 03:53:08,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29382 states. Received shutdown request... [2021-06-05 03:53:09,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-06-05 03:53:09,221 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 03:53:09,222 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 03:53:09,225 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 03:53:09,225 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 03:53:09 BasicIcfg [2021-06-05 03:53:09,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 03:53:09,226 INFO L168 Benchmark]: Toolchain (without parser) took 719230.19 ms. Allocated memory was 348.1 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 327.5 MB in the beginning and 11.4 GB in the end (delta: -11.1 GB). Peak memory consumption was 5.2 GB. Max. memory is 16.0 GB. [2021-06-05 03:53:09,226 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 348.1 MB. Free memory is still 328.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:53:09,226 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.29 ms. Allocated memory is still 348.1 MB. Free memory was 327.5 MB in the beginning and 325.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:53:09,226 INFO L168 Benchmark]: Boogie Preprocessor took 15.52 ms. Allocated memory is still 348.1 MB. Free memory was 325.9 MB in the beginning and 325.0 MB in the end (delta: 924.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:53:09,226 INFO L168 Benchmark]: RCFGBuilder took 227.42 ms. Allocated memory is still 348.1 MB. Free memory was 324.9 MB in the beginning and 313.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 03:53:09,226 INFO L168 Benchmark]: TraceAbstraction took 718954.49 ms. Allocated memory was 348.1 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 312.9 MB in the beginning and 11.4 GB in the end (delta: -11.1 GB). Peak memory consumption was 5.2 GB. Max. memory is 16.0 GB. [2021-06-05 03:53:09,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 348.1 MB. Free memory is still 328.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.29 ms. Allocated memory is still 348.1 MB. Free memory was 327.5 MB in the beginning and 325.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.52 ms. Allocated memory is still 348.1 MB. Free memory was 325.9 MB in the beginning and 325.0 MB in the end (delta: 924.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 227.42 ms. Allocated memory is still 348.1 MB. Free memory was 324.9 MB in the beginning and 313.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 718954.49 ms. Allocated memory was 348.1 MB in the beginning and 16.0 GB in the end (delta: 15.7 GB). Free memory was 312.9 MB in the beginning and 11.4 GB in the end (delta: -11.1 GB). Peak memory consumption was 5.2 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 15]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 10]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 17]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 29]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 17 procedures, 76 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 718710.6ms, OverallIterations: 368, TraceHistogramMax: 1, EmptinessCheckTime: 13789.2ms, AutomataDifference: 152092.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11943.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 57866 SDtfs, 71723 SDslu, 147668 SDs, 0 SdLazy, 25471 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16785.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3631 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 3256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2166 ImplicationChecksByTransitivity, 68753.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=68819occurred in iteration=0, InterpolantAutomatonStates: 3631, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 476886.7ms AutomataMinimizationTime, 368 MinimizatonAttempts, 6319224 StatesRemovedByMinimization, 360 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 125.4ms SsaConstructionTime, 310.1ms SatisfiabilityAnalysisTime, 62112.5ms InterpolantComputationTime, 12144 NumberOfCodeBlocks, 12144 NumberOfCodeBlocksAsserted, 368 NumberOfCheckSat, 11776 ConstructedInterpolants, 0 QuantifiedInterpolants, 415278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 368 InterpolantComputations, 368 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