/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -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 -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:01:45,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:01:45,164 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 [2023-12-09 15:01:45,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:01:45,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:01:45,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:01:45,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:01:45,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:01:45,191 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:01:45,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:01:45,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:01:45,195 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:01:45,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:01:45,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:01:45,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:01:45,196 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:01:45,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:01:45,197 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:01:45,197 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:01:45,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:01:45,197 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:01:45,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:01:45,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:01:45,198 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:01:45,198 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:01:45,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:01:45,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:01:45,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:01:45,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:01:45,200 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:01:45,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:01:45,201 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:01:45,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:01:45,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:01:45,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:01:45,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:01:45,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:01:45,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:01:45,417 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:01:45,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2023-12-09 15:01:46,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:01:46,780 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:01:46,780 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i [2023-12-09 15:01:46,809 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8532df3d6/608835ddd3874bc89185d0ba3842b848/FLAGdf8ef177e [2023-12-09 15:01:46,828 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8532df3d6/608835ddd3874bc89185d0ba3842b848 [2023-12-09 15:01:46,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:01:46,831 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:01:46,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:01:46,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:01:46,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:01:46,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:01:46" (1/1) ... [2023-12-09 15:01:46,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656ef706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:46, skipping insertion in model container [2023-12-09 15:01:46,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:01:46" (1/1) ... [2023-12-09 15:01:46,931 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:01:47,160 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2023-12-09 15:01:47,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:01:47,345 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:01:47,355 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2023-12-09 15:01:47,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:01:47,407 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:01:47,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47 WrapperNode [2023-12-09 15:01:47,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:01:47,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:01:47,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:01:47,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:01:47,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,454 INFO L138 Inliner]: procedures = 163, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2023-12-09 15:01:47,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:01:47,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:01:47,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:01:47,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:01:47,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:01:47,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:01:47,484 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:01:47,484 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:01:47,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (1/1) ... [2023-12-09 15:01:47,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:01:47,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:01:47,545 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) [2023-12-09 15:01:47,576 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 [2023-12-09 15:01:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:01:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 15:01:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:01:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:01:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-09 15:01:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-09 15:01:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:01:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:01:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 15:01:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:01:47,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:01:47,597 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 15:01:47,680 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:01:47,681 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:01:47,847 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:01:47,865 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:01:47,865 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:01:47,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:01:47 BoogieIcfgContainer [2023-12-09 15:01:47,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:01:47,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:01:47,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:01:47,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:01:47,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:01:46" (1/3) ... [2023-12-09 15:01:47,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f9dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:01:47, skipping insertion in model container [2023-12-09 15:01:47,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:01:47" (2/3) ... [2023-12-09 15:01:47,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f9dc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:01:47, skipping insertion in model container [2023-12-09 15:01:47,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:01:47" (3/3) ... [2023-12-09 15:01:47,871 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2023-12-09 15:01:47,882 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:01:47,882 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-09 15:01:47,882 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:01:47,907 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 15:01:47,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 136 flow [2023-12-09 15:01:47,969 INFO L124 PetriNetUnfolderBase]: 1/65 cut-off events. [2023-12-09 15:01:47,969 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:01:47,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-12-09 15:01:47,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 66 transitions, 136 flow [2023-12-09 15:01:47,974 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 54 transitions, 111 flow [2023-12-09 15:01:47,981 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:01:47,985 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;@3c9846a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:01:47,985 INFO L363 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-09 15:01:48,002 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:01:48,002 INFO L124 PetriNetUnfolderBase]: 0/52 cut-off events. [2023-12-09 15:01:48,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:01:48,002 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:01:48,003 INFO L233 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, 1, 1, 1] [2023-12-09 15:01:48,003 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:01:48,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:01:48,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1166675609, now seen corresponding path program 1 times [2023-12-09 15:01:48,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:01:48,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555975906] [2023-12-09 15:01:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:01:48,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:01:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:01:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:01:48,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:01:48,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555975906] [2023-12-09 15:01:48,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555975906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:01:48,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:01:48,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:01:48,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099213637] [2023-12-09 15:01:48,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:01:48,336 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:01:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:01:48,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:01:48,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:01:48,365 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 66 [2023-12-09 15:01:48,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:01:48,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 66 [2023-12-09 15:01:48,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:01:48,476 INFO L124 PetriNetUnfolderBase]: 44/183 cut-off events. [2023-12-09 15:01:48,476 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 15:01:48,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 183 events. 44/183 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 599 event pairs, 16 based on Foata normal form. 7/190 useless extension candidates. Maximal degree in co-relation 263. Up to 47 conditions per place. [2023-12-09 15:01:48,478 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 18 selfloop transitions, 3 changer transitions 17/77 dead transitions. [2023-12-09 15:01:48,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 77 transitions, 233 flow [2023-12-09 15:01:48,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 15:01:48,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 15:01:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 362 transitions. [2023-12-09 15:01:48,487 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7835497835497836 [2023-12-09 15:01:48,488 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 362 transitions. [2023-12-09 15:01:48,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 362 transitions. [2023-12-09 15:01:48,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:01:48,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 362 transitions. [2023-12-09 15:01:48,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,497 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,499 INFO L308 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2023-12-09 15:01:48,500 INFO L500 AbstractCegarLoop]: Abstraction has has 64 places, 77 transitions, 233 flow [2023-12-09 15:01:48,500 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,500 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:01:48,500 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:01:48,500 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:01:48,500 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:01:48,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:01:48,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1662130404, now seen corresponding path program 1 times [2023-12-09 15:01:48,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:01:48,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906906244] [2023-12-09 15:01:48,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:01:48,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:01:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:01:48,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:01:48,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:01:48,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906906244] [2023-12-09 15:01:48,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906906244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:01:48,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:01:48,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:01:48,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670104106] [2023-12-09 15:01:48,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:01:48,762 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:01:48,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:01:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:01:48,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:01:48,764 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 66 [2023-12-09 15:01:48,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 77 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:01:48,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 66 [2023-12-09 15:01:48,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:01:48,867 INFO L124 PetriNetUnfolderBase]: 24/138 cut-off events. [2023-12-09 15:01:48,868 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-12-09 15:01:48,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 138 events. 24/138 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 342 event pairs, 3 based on Foata normal form. 7/145 useless extension candidates. Maximal degree in co-relation 220. Up to 43 conditions per place. [2023-12-09 15:01:48,869 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 18 selfloop transitions, 5 changer transitions 11/71 dead transitions. [2023-12-09 15:01:48,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 71 transitions, 271 flow [2023-12-09 15:01:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:01:48,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:01:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 245 transitions. [2023-12-09 15:01:48,875 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7424242424242424 [2023-12-09 15:01:48,875 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 245 transitions. [2023-12-09 15:01:48,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 245 transitions. [2023-12-09 15:01:48,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:01:48,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 245 transitions. [2023-12-09 15:01:48,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,877 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,878 INFO L308 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2023-12-09 15:01:48,878 INFO L500 AbstractCegarLoop]: Abstraction has has 66 places, 71 transitions, 271 flow [2023-12-09 15:01:48,878 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.0) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:48,878 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:01:48,878 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:01:48,879 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:01:48,879 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:01:48,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:01:48,879 INFO L85 PathProgramCache]: Analyzing trace with hash -737550105, now seen corresponding path program 1 times [2023-12-09 15:01:48,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:01:48,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940012099] [2023-12-09 15:01:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:01:48,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:01:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:01:48,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:01:48,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:01:48,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940012099] [2023-12-09 15:01:48,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940012099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:01:48,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:01:48,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 15:01:48,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187227930] [2023-12-09 15:01:48,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:01:48,987 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 15:01:48,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:01:48,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 15:01:48,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 15:01:48,988 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 66 [2023-12-09 15:01:48,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 71 transitions, 271 flow. Second operand has 3 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) [2023-12-09 15:01:48,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:01:48,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 66 [2023-12-09 15:01:48,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:01:49,058 INFO L124 PetriNetUnfolderBase]: 18/132 cut-off events. [2023-12-09 15:01:49,060 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-12-09 15:01:49,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 132 events. 18/132 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 316 event pairs, 0 based on Foata normal form. 5/137 useless extension candidates. Maximal degree in co-relation 231. Up to 38 conditions per place. [2023-12-09 15:01:49,066 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 10 selfloop transitions, 4 changer transitions 16/73 dead transitions. [2023-12-09 15:01:49,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 73 transitions, 337 flow [2023-12-09 15:01:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 15:01:49,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 15:01:49,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2023-12-09 15:01:49,067 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8535353535353535 [2023-12-09 15:01:49,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 169 transitions. [2023-12-09 15:01:49,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 169 transitions. [2023-12-09 15:01:49,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:01:49,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 169 transitions. [2023-12-09 15:01:49,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:49,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:49,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:49,070 INFO L308 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places. [2023-12-09 15:01:49,071 INFO L500 AbstractCegarLoop]: Abstraction has has 68 places, 73 transitions, 337 flow [2023-12-09 15:01:49,071 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-12-09 15:01:49,071 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:01:49,071 INFO L233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:01:49,071 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:01:49,071 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-12-09 15:01:49,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:01:49,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1670646433, now seen corresponding path program 2 times [2023-12-09 15:01:49,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:01:49,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968771489] [2023-12-09 15:01:49,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:01:49,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:01:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:01:49,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 15:01:49,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:01:49,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968771489] [2023-12-09 15:01:49,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968771489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:01:49,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:01:49,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 15:01:49,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878701882] [2023-12-09 15:01:49,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:01:49,230 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 15:01:49,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:01:49,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 15:01:49,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-09 15:01:49,232 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 66 [2023-12-09 15:01:49,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 73 transitions, 337 flow. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:49,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:01:49,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 66 [2023-12-09 15:01:49,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:01:49,280 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2023-12-09 15:01:49,280 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2023-12-09 15:01:49,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 69 events. 3/69 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 2/71 useless extension candidates. Maximal degree in co-relation 108. Up to 13 conditions per place. [2023-12-09 15:01:49,281 INFO L140 encePairwiseOnDemand]: 60/66 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2023-12-09 15:01:49,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 55 transitions, 273 flow [2023-12-09 15:01:49,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:01:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:01:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 241 transitions. [2023-12-09 15:01:49,283 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7303030303030303 [2023-12-09 15:01:49,283 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 241 transitions. [2023-12-09 15:01:49,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 241 transitions. [2023-12-09 15:01:49,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:01:49,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 241 transitions. [2023-12-09 15:01:49,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:49,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:49,286 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:49,287 INFO L308 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2023-12-09 15:01:49,287 INFO L500 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 273 flow [2023-12-09 15:01:49,288 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 15:01:49,293 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/13-privatized_40-traces-ex-6_true.i_BEv2_AllErrorsAtOnce [2023-12-09 15:01:49,318 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-09 15:01:49,319 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-12-09 15:01:49,319 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:01:49,320 INFO L457 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2023-12-09 15:01:49,323 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:01:49,323 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:01:49,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:01:49 BasicIcfg [2023-12-09 15:01:49,330 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:01:49,332 INFO L158 Benchmark]: Toolchain (without parser) took 2499.66ms. Allocated memory was 198.2MB in the beginning and 309.3MB in the end (delta: 111.1MB). Free memory was 161.0MB in the beginning and 235.0MB in the end (delta: -74.0MB). Peak memory consumption was 38.7MB. Max. memory is 8.0GB. [2023-12-09 15:01:49,332 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:01:49,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.16ms. Allocated memory is still 198.2MB. Free memory was 160.6MB in the beginning and 141.3MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-09 15:01:49,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.09ms. Allocated memory is still 198.2MB. Free memory was 141.3MB in the beginning and 139.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:01:49,333 INFO L158 Benchmark]: Boogie Preprocessor took 27.91ms. Allocated memory is still 198.2MB. Free memory was 139.2MB in the beginning and 137.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-09 15:01:49,337 INFO L158 Benchmark]: RCFGBuilder took 382.71ms. Allocated memory is still 198.2MB. Free memory was 137.9MB in the beginning and 123.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-09 15:01:49,338 INFO L158 Benchmark]: TraceAbstraction took 1462.85ms. Allocated memory was 198.2MB in the beginning and 309.3MB in the end (delta: 111.1MB). Free memory was 122.9MB in the beginning and 235.0MB in the end (delta: -112.2MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:01:49,340 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 198.2MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 577.16ms. Allocated memory is still 198.2MB. Free memory was 160.6MB in the beginning and 141.3MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.09ms. Allocated memory is still 198.2MB. Free memory was 141.3MB in the beginning and 139.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.91ms. Allocated memory is still 198.2MB. Free memory was 139.2MB in the beginning and 137.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 382.71ms. Allocated memory is still 198.2MB. Free memory was 137.9MB in the beginning and 123.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1462.85ms. Allocated memory was 198.2MB in the beginning and 309.3MB in the end (delta: 111.1MB). Free memory was 122.9MB in the beginning and 235.0MB in the end (delta: -112.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 81 locations, 2 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: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 20 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=337occurred in iteration=3, InterpolantAutomatonStates: 20, 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, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 15:01:49,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...