/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_05-lockfuns.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 07:20:47,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 07:20:47,495 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 07:20:47,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 07:20:47,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 07:20:47,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 07:20:47,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 07:20:47,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 07:20:47,522 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 07:20:47,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 07:20:47,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 07:20:47,526 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 07:20:47,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 07:20:47,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 07:20:47,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 07:20:47,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 07:20:47,527 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 07:20:47,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 07:20:47,528 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 07:20:47,528 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 07:20:47,528 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 07:20:47,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 07:20:47,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 07:20:47,529 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 07:20:47,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 07:20:47,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:20:47,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 07:20:47,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 07:20:47,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 07:20:47,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 07:20:47,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 07:20:47,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 07:20:47,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 07:20:47,531 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 07:20:47,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 07:20:47,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 07:20:47,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 07:20:47,719 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 07:20:47,720 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 07:20:47,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_05-lockfuns.i [2023-11-30 07:20:48,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 07:20:48,868 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 07:20:48,869 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_05-lockfuns.i [2023-11-30 07:20:48,878 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36d3dff9/eea45f84b6e0440b98fdf94dd8620b9b/FLAG52831b41c [2023-11-30 07:20:48,888 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36d3dff9/eea45f84b6e0440b98fdf94dd8620b9b [2023-11-30 07:20:48,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 07:20:48,891 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 07:20:48,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 07:20:48,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 07:20:48,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 07:20:48,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:20:48" (1/1) ... [2023-11-30 07:20:48,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31842268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:48, skipping insertion in model container [2023-11-30 07:20:48,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 07:20:48" (1/1) ... [2023-11-30 07:20:48,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 07:20:49,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:20:49,236 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 07:20:49,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 07:20:49,318 INFO L206 MainTranslator]: Completed translation [2023-11-30 07:20:49,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49 WrapperNode [2023-11-30 07:20:49,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 07:20:49,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 07:20:49,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 07:20:49,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 07:20:49,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,363 INFO L138 Inliner]: procedures = 265, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57 [2023-11-30 07:20:49,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 07:20:49,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 07:20:49,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 07:20:49,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 07:20:49,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 07:20:49,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 07:20:49,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 07:20:49,390 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 07:20:49,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (1/1) ... [2023-11-30 07:20:49,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 07:20:49,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 07:20:49,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 07:20:49,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 07:20:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 07:20:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 07:20:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 07:20:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 07:20:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 07:20:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 07:20:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 07:20:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-30 07:20:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-30 07:20:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 07:20:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 07:20:49,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 07:20:49,435 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 07:20:49,555 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 07:20:49,558 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 07:20:49,633 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 07:20:49,649 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 07:20:49,649 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 07:20:49,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:20:49 BoogieIcfgContainer [2023-11-30 07:20:49,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 07:20:49,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 07:20:49,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 07:20:49,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 07:20:49,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 07:20:48" (1/3) ... [2023-11-30 07:20:49,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8f5143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:20:49, skipping insertion in model container [2023-11-30 07:20:49,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 07:20:49" (2/3) ... [2023-11-30 07:20:49,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8f5143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 07:20:49, skipping insertion in model container [2023-11-30 07:20:49,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 07:20:49" (3/3) ... [2023-11-30 07:20:49,662 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_05-lockfuns.i [2023-11-30 07:20:49,672 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 07:20:49,673 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-30 07:20:49,673 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 07:20:49,705 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-30 07:20:49,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions, 131 flow [2023-11-30 07:20:49,747 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2023-11-30 07:20:49,747 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:20:49,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 61 events. 0/61 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-30 07:20:49,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 62 transitions, 131 flow [2023-11-30 07:20:49,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 109 flow [2023-11-30 07:20:49,757 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 07:20:49,761 INFO L362 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52453862, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 07:20:49,761 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-30 07:20:49,767 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 07:20:49,768 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2023-11-30 07:20:49,768 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 07:20:49,768 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:49,768 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:49,769 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:49,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:49,772 INFO L85 PathProgramCache]: Analyzing trace with hash 895655831, now seen corresponding path program 1 times [2023-11-30 07:20:49,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:49,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34171268] [2023-11-30 07:20:49,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:49,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:49,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:49,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:49,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34171268] [2023-11-30 07:20:49,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34171268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:49,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:49,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:20:49,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528422517] [2023-11-30 07:20:49,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:50,002 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:20:50,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:50,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:20:50,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:20:50,024 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 62 [2023-11-30 07:20:50,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:50,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 62 [2023-11-30 07:20:50,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:50,138 INFO L124 PetriNetUnfolderBase]: 34/175 cut-off events. [2023-11-30 07:20:50,138 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 07:20:50,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 175 events. 34/175 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 708 event pairs, 9 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 243. Up to 45 conditions per place. [2023-11-30 07:20:50,140 INFO L140 encePairwiseOnDemand]: 55/62 looper letters, 19 selfloop transitions, 5 changer transitions 10/72 dead transitions. [2023-11-30 07:20:50,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 72 transitions, 215 flow [2023-11-30 07:20:50,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:20:50,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:20:50,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 268 transitions. [2023-11-30 07:20:50,154 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.864516129032258 [2023-11-30 07:20:50,154 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 268 transitions. [2023-11-30 07:20:50,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 268 transitions. [2023-11-30 07:20:50,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:50,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 268 transitions. [2023-11-30 07:20:50,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 53.6) internal successors, (268), 5 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 62.0) internal successors, (372), 6 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,165 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 62.0) internal successors, (372), 6 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,167 INFO L307 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2023-11-30 07:20:50,167 INFO L500 AbstractCegarLoop]: Abstraction has has 61 places, 72 transitions, 215 flow [2023-11-30 07:20:50,167 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,167 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:50,167 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:50,168 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 07:20:50,168 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:50,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:50,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1199676056, now seen corresponding path program 1 times [2023-11-30 07:20:50,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:50,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372560728] [2023-11-30 07:20:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:50,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:50,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:50,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372560728] [2023-11-30 07:20:50,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372560728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:50,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:50,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:20:50,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193480916] [2023-11-30 07:20:50,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:50,263 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 07:20:50,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:50,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 07:20:50,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 07:20:50,265 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2023-11-30 07:20:50,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 72 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:50,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2023-11-30 07:20:50,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:50,357 INFO L124 PetriNetUnfolderBase]: 56/253 cut-off events. [2023-11-30 07:20:50,357 INFO L125 PetriNetUnfolderBase]: For 53/57 co-relation queries the response was YES. [2023-11-30 07:20:50,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 495 conditions, 253 events. 56/253 cut-off events. For 53/57 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1238 event pairs, 13 based on Foata normal form. 2/242 useless extension candidates. Maximal degree in co-relation 467. Up to 66 conditions per place. [2023-11-30 07:20:50,359 INFO L140 encePairwiseOnDemand]: 55/62 looper letters, 22 selfloop transitions, 5 changer transitions 22/87 dead transitions. [2023-11-30 07:20:50,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 87 transitions, 355 flow [2023-11-30 07:20:50,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 07:20:50,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 07:20:50,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 259 transitions. [2023-11-30 07:20:50,362 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8354838709677419 [2023-11-30 07:20:50,362 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 259 transitions. [2023-11-30 07:20:50,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 259 transitions. [2023-11-30 07:20:50,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:50,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 259 transitions. [2023-11-30 07:20:50,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 62.0) internal successors, (372), 6 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,365 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 62.0) internal successors, (372), 6 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,366 INFO L307 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2023-11-30 07:20:50,366 INFO L500 AbstractCegarLoop]: Abstraction has has 65 places, 87 transitions, 355 flow [2023-11-30 07:20:50,366 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 4 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,366 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:50,366 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:50,366 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 07:20:50,366 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:50,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:50,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1913026383, now seen corresponding path program 1 times [2023-11-30 07:20:50,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:50,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016111410] [2023-11-30 07:20:50,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:50,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:50,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:50,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:50,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016111410] [2023-11-30 07:20:50,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016111410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:50,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:50,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 07:20:50,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272301021] [2023-11-30 07:20:50,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:50,483 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 07:20:50,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:50,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 07:20:50,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 07:20:50,484 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 62 [2023-11-30 07:20:50,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 87 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:50,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 62 [2023-11-30 07:20:50,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:50,506 INFO L124 PetriNetUnfolderBase]: 1/76 cut-off events. [2023-11-30 07:20:50,506 INFO L125 PetriNetUnfolderBase]: For 54/58 co-relation queries the response was YES. [2023-11-30 07:20:50,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 76 events. 1/76 cut-off events. For 54/58 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 12/84 useless extension candidates. Maximal degree in co-relation 115. Up to 18 conditions per place. [2023-11-30 07:20:50,507 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 7 selfloop transitions, 6 changer transitions 6/65 dead transitions. [2023-11-30 07:20:50,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 65 transitions, 257 flow [2023-11-30 07:20:50,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 07:20:50,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 07:20:50,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2023-11-30 07:20:50,512 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8763440860215054 [2023-11-30 07:20:50,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 163 transitions. [2023-11-30 07:20:50,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 163 transitions. [2023-11-30 07:20:50,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:50,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 163 transitions. [2023-11-30 07:20:50,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,513 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,514 INFO L307 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2023-11-30 07:20:50,514 INFO L500 AbstractCegarLoop]: Abstraction has has 67 places, 65 transitions, 257 flow [2023-11-30 07:20:50,514 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,514 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:50,514 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:50,514 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 07:20:50,514 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:50,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:50,515 INFO L85 PathProgramCache]: Analyzing trace with hash 11540305, now seen corresponding path program 1 times [2023-11-30 07:20:50,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:50,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295592043] [2023-11-30 07:20:50,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:50,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:50,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:50,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:50,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295592043] [2023-11-30 07:20:50,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295592043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:50,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:50,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:20:50,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048039558] [2023-11-30 07:20:50,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:50,628 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:20:50,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:50,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:20:50,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:20:50,629 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 62 [2023-11-30 07:20:50,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 65 transitions, 257 flow. Second operand has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:50,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 62 [2023-11-30 07:20:50,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:50,718 INFO L124 PetriNetUnfolderBase]: 0/79 cut-off events. [2023-11-30 07:20:50,718 INFO L125 PetriNetUnfolderBase]: For 62/65 co-relation queries the response was YES. [2023-11-30 07:20:50,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 79 events. 0/79 cut-off events. For 62/65 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2023-11-30 07:20:50,719 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 20 selfloop transitions, 6 changer transitions 8/66 dead transitions. [2023-11-30 07:20:50,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 66 transitions, 337 flow [2023-11-30 07:20:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:20:50,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:20:50,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 308 transitions. [2023-11-30 07:20:50,721 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7096774193548387 [2023-11-30 07:20:50,721 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 308 transitions. [2023-11-30 07:20:50,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 308 transitions. [2023-11-30 07:20:50,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:50,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 308 transitions. [2023-11-30 07:20:50,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,726 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,727 INFO L307 CegarLoopForPetriNet]: 57 programPoint places, 15 predicate places. [2023-11-30 07:20:50,727 INFO L500 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 337 flow [2023-11-30 07:20:50,728 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,728 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:50,728 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:50,729 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 07:20:50,729 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:50,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:50,732 INFO L85 PathProgramCache]: Analyzing trace with hash -743274631, now seen corresponding path program 1 times [2023-11-30 07:20:50,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:50,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016426478] [2023-11-30 07:20:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:50,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:50,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:50,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016426478] [2023-11-30 07:20:50,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016426478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:50,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:50,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:20:50,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267009046] [2023-11-30 07:20:50,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:50,828 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:20:50,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:50,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:20:50,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:20:50,830 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 62 [2023-11-30 07:20:50,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 337 flow. Second operand has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:50,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 62 [2023-11-30 07:20:50,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:50,908 INFO L124 PetriNetUnfolderBase]: 0/78 cut-off events. [2023-11-30 07:20:50,909 INFO L125 PetriNetUnfolderBase]: For 109/114 co-relation queries the response was YES. [2023-11-30 07:20:50,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 78 events. 0/78 cut-off events. For 109/114 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2023-11-30 07:20:50,910 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 19 selfloop transitions, 6 changer transitions 8/65 dead transitions. [2023-11-30 07:20:50,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 65 transitions, 397 flow [2023-11-30 07:20:50,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-30 07:20:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-30 07:20:50,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 307 transitions. [2023-11-30 07:20:50,912 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7073732718894009 [2023-11-30 07:20:50,912 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 307 transitions. [2023-11-30 07:20:50,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 307 transitions. [2023-11-30 07:20:50,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:50,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 307 transitions. [2023-11-30 07:20:50,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,915 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 62.0) internal successors, (496), 8 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,917 INFO L307 CegarLoopForPetriNet]: 57 programPoint places, 20 predicate places. [2023-11-30 07:20:50,917 INFO L500 AbstractCegarLoop]: Abstraction has has 77 places, 65 transitions, 397 flow [2023-11-30 07:20:50,917 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.166666666666664) internal successors, (247), 6 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:50,917 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:50,918 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:50,918 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 07:20:50,918 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:50,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:50,920 INFO L85 PathProgramCache]: Analyzing trace with hash 496008891, now seen corresponding path program 1 times [2023-11-30 07:20:50,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:50,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346636543] [2023-11-30 07:20:50,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:50,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:50,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:50,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:50,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346636543] [2023-11-30 07:20:50,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346636543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:50,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:50,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:20:50,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005790406] [2023-11-30 07:20:50,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:51,000 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:20:51,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:51,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:20:51,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:20:51,001 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 62 [2023-11-30 07:20:51,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 65 transitions, 397 flow. Second operand has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:51,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 62 [2023-11-30 07:20:51,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:51,060 INFO L124 PetriNetUnfolderBase]: 0/77 cut-off events. [2023-11-30 07:20:51,060 INFO L125 PetriNetUnfolderBase]: For 170/177 co-relation queries the response was YES. [2023-11-30 07:20:51,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 77 events. 0/77 cut-off events. For 170/177 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2023-11-30 07:20:51,060 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 10 selfloop transitions, 4 changer transitions 23/64 dead transitions. [2023-11-30 07:20:51,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 64 transitions, 453 flow [2023-11-30 07:20:51,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:20:51,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:20:51,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 382 transitions. [2023-11-30 07:20:51,061 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6845878136200717 [2023-11-30 07:20:51,062 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 382 transitions. [2023-11-30 07:20:51,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 382 transitions. [2023-11-30 07:20:51,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:51,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 382 transitions. [2023-11-30 07:20:51,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.44444444444444) internal successors, (382), 9 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,063 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,065 INFO L307 CegarLoopForPetriNet]: 57 programPoint places, 27 predicate places. [2023-11-30 07:20:51,065 INFO L500 AbstractCegarLoop]: Abstraction has has 84 places, 64 transitions, 453 flow [2023-11-30 07:20:51,065 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,066 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 07:20:51,066 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:51,066 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-30 07:20:51,066 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-30 07:20:51,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 07:20:51,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1566676898, now seen corresponding path program 1 times [2023-11-30 07:20:51,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 07:20:51,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002968978] [2023-11-30 07:20:51,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 07:20:51,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 07:20:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 07:20:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 07:20:51,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 07:20:51,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002968978] [2023-11-30 07:20:51,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002968978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 07:20:51,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 07:20:51,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-30 07:20:51,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500559745] [2023-11-30 07:20:51,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 07:20:51,144 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-30 07:20:51,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 07:20:51,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-30 07:20:51,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-30 07:20:51,145 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 62 [2023-11-30 07:20:51,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 64 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 07:20:51,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 62 [2023-11-30 07:20:51,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 07:20:51,198 INFO L124 PetriNetUnfolderBase]: 0/76 cut-off events. [2023-11-30 07:20:51,198 INFO L125 PetriNetUnfolderBase]: For 245/254 co-relation queries the response was YES. [2023-11-30 07:20:51,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 76 events. 0/76 cut-off events. For 245/254 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2023-11-30 07:20:51,199 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2023-11-30 07:20:51,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 63 transitions, 505 flow [2023-11-30 07:20:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-30 07:20:51,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-30 07:20:51,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 381 transitions. [2023-11-30 07:20:51,201 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6827956989247311 [2023-11-30 07:20:51,201 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 381 transitions. [2023-11-30 07:20:51,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 381 transitions. [2023-11-30 07:20:51,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 07:20:51,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 381 transitions. [2023-11-30 07:20:51,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.333333333333336) internal successors, (381), 9 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,204 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,204 INFO L307 CegarLoopForPetriNet]: 57 programPoint places, 34 predicate places. [2023-11-30 07:20:51,205 INFO L500 AbstractCegarLoop]: Abstraction has has 91 places, 63 transitions, 505 flow [2023-11-30 07:20:51,205 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 07:20:51,210 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/04-mutex_05-lockfuns.i_BEv2_AllErrorsAtOnce [2023-11-30 07:20:51,235 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-11-30 07:20:51,236 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-11-30 07:20:51,236 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-30 07:20:51,237 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-11-30 07:20:51,237 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-11-30 07:20:51,237 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-11-30 07:20:51,237 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-11-30 07:20:51,237 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-30 07:20:51,238 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-30 07:20:51,241 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 07:20:51,241 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 07:20:51,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 07:20:51 BasicIcfg [2023-11-30 07:20:51,250 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 07:20:51,250 INFO L158 Benchmark]: Toolchain (without parser) took 2359.61ms. Allocated memory is still 444.6MB. Free memory was 404.2MB in the beginning and 296.6MB in the end (delta: 107.6MB). Peak memory consumption was 108.4MB. Max. memory is 16.0GB. [2023-11-30 07:20:51,250 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 335.5MB. Free memory is still 292.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 07:20:51,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.98ms. Allocated memory is still 444.6MB. Free memory was 404.2MB in the beginning and 377.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-11-30 07:20:51,251 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.46ms. Allocated memory is still 444.6MB. Free memory was 377.0MB in the beginning and 374.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:20:51,251 INFO L158 Benchmark]: Boogie Preprocessor took 25.59ms. Allocated memory is still 444.6MB. Free memory was 374.0MB in the beginning and 372.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 07:20:51,251 INFO L158 Benchmark]: RCFGBuilder took 260.93ms. Allocated memory is still 444.6MB. Free memory was 372.8MB in the beginning and 359.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-11-30 07:20:51,251 INFO L158 Benchmark]: TraceAbstraction took 1598.25ms. Allocated memory is still 444.6MB. Free memory was 358.1MB in the beginning and 296.6MB in the end (delta: 61.5MB). Peak memory consumption was 62.3MB. Max. memory is 16.0GB. [2023-11-30 07:20:51,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 335.5MB. Free memory is still 292.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 426.98ms. Allocated memory is still 444.6MB. Free memory was 404.2MB in the beginning and 377.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.46ms. Allocated memory is still 444.6MB. Free memory was 377.0MB in the beginning and 374.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.59ms. Allocated memory is still 444.6MB. Free memory was 374.0MB in the beginning and 372.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 260.93ms. Allocated memory is still 444.6MB. Free memory was 372.8MB in the beginning and 359.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1598.25ms. Allocated memory is still 444.6MB. Free memory was 358.1MB in the beginning and 296.6MB in the end (delta: 61.5MB). Peak memory consumption was 62.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 935]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 935]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 927]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 927]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 83 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 359 IncrementalHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 47 mSDtfsCounter, 359 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=505occurred in iteration=7, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 606 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 07:20:51,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...