/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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 15:04:34,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 15:04:34,842 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 15:04:34,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 15:04:34,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 15:04:34,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 15:04:34,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 15:04:34,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 15:04:34,871 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 15:04:34,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 15:04:34,871 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 15:04:34,871 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 15:04:34,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 15:04:34,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 15:04:34,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 15:04:34,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 15:04:34,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 15:04:34,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 15:04:34,873 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 15:04:34,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 15:04:34,874 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 15:04:34,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 15:04:34,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 15:04:34,877 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 15:04:34,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 15:04:34,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:04:34,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 15:04:34,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 15:04:34,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 15:04:34,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 15:04:34,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 15:04:34,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 15:04:34,879 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 15:04:34,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 15:04:35,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 15:04:35,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 15:04:35,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 15:04:35,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 15:04:35,099 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 15:04:35,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-12-09 15:04:36,118 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 15:04:36,317 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 15:04:36,318 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-12-09 15:04:36,331 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0630df61/453b4780c9f04c5d93d58e2c4c66f947/FLAG94ebf7732 [2023-12-09 15:04:36,342 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0630df61/453b4780c9f04c5d93d58e2c4c66f947 [2023-12-09 15:04:36,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 15:04:36,345 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 15:04:36,346 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 15:04:36,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 15:04:36,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 15:04:36,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd1700d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36, skipping insertion in model container [2023-12-09 15:04:36,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,401 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 15:04:36,538 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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-12-09 15:04:36,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:04:36,704 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 15:04:36,714 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/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-12-09 15:04:36,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 15:04:36,777 INFO L206 MainTranslator]: Completed translation [2023-12-09 15:04:36,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36 WrapperNode [2023-12-09 15:04:36,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 15:04:36,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 15:04:36,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 15:04:36,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 15:04:36,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,806 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,832 INFO L138 Inliner]: procedures = 166, calls = 49, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 164 [2023-12-09 15:04:36,832 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 15:04:36,833 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 15:04:36,833 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 15:04:36,833 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 15:04:36,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 15:04:36,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 15:04:36,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 15:04:36,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 15:04:36,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (1/1) ... [2023-12-09 15:04:36,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 15:04:36,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 15:04:36,900 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 15:04:36,901 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 15:04:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 15:04:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 15:04:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 15:04:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 15:04:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-12-09 15:04:36,923 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-12-09 15:04:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 15:04:36,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 15:04:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 15:04:36,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 15:04:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 15:04:36,929 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 15:04:37,030 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 15:04:37,031 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 15:04:37,253 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 15:04:37,281 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 15:04:37,281 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-09 15:04:37,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:04:37 BoogieIcfgContainer [2023-12-09 15:04:37,282 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 15:04:37,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 15:04:37,284 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 15:04:37,286 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 15:04:37,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:04:36" (1/3) ... [2023-12-09 15:04:37,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221202e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:04:37, skipping insertion in model container [2023-12-09 15:04:37,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:04:36" (2/3) ... [2023-12-09 15:04:37,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221202e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:04:37, skipping insertion in model container [2023-12-09 15:04:37,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:04:37" (3/3) ... [2023-12-09 15:04:37,287 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-12-09 15:04:37,301 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 15:04:37,301 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-12-09 15:04:37,301 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 15:04:37,350 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-09 15:04:37,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 191 transitions, 386 flow [2023-12-09 15:04:37,448 INFO L124 PetriNetUnfolderBase]: 8/194 cut-off events. [2023-12-09 15:04:37,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:04:37,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 194 events. 8/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 178 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 147. Up to 2 conditions per place. [2023-12-09 15:04:37,459 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 191 transitions, 386 flow [2023-12-09 15:04:37,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 189 transitions, 381 flow [2023-12-09 15:04:37,507 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 15:04:37,517 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;@45c545fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 15:04:37,519 INFO L363 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-09 15:04:37,546 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 15:04:37,546 INFO L124 PetriNetUnfolderBase]: 2/99 cut-off events. [2023-12-09 15:04:37,546 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 15:04:37,546 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:37,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:04:37,547 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:37,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:37,551 INFO L85 PathProgramCache]: Analyzing trace with hash 646963523, now seen corresponding path program 1 times [2023-12-09 15:04:37,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:37,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959131014] [2023-12-09 15:04:37,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:37,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:38,123 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 15:04:38,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:38,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959131014] [2023-12-09 15:04:38,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959131014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:38,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:38,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:04:38,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067602115] [2023-12-09 15:04:38,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:38,132 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:38,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:38,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:38,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:38,156 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 191 [2023-12-09 15:04:38,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 189 transitions, 381 flow. Second operand has 8 states, 8 states have (on average 134.75) internal successors, (1078), 8 states have internal predecessors, (1078), 0 states have call successors, (0), 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 15:04:38,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:38,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 191 [2023-12-09 15:04:38,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:38,895 INFO L124 PetriNetUnfolderBase]: 580/3071 cut-off events. [2023-12-09 15:04:38,895 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-12-09 15:04:38,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4301 conditions, 3071 events. 580/3071 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 24441 event pairs, 212 based on Foata normal form. 198/3091 useless extension candidates. Maximal degree in co-relation 4251. Up to 544 conditions per place. [2023-12-09 15:04:38,914 INFO L140 encePairwiseOnDemand]: 168/191 looper letters, 128 selfloop transitions, 38 changer transitions 26/319 dead transitions. [2023-12-09 15:04:38,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 319 transitions, 1017 flow [2023-12-09 15:04:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:04:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:04:38,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2749 transitions. [2023-12-09 15:04:38,933 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7575089556351612 [2023-12-09 15:04:38,934 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2749 transitions. [2023-12-09 15:04:38,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2749 transitions. [2023-12-09 15:04:38,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:38,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2749 transitions. [2023-12-09 15:04:38,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 144.68421052631578) internal successors, (2749), 19 states have internal predecessors, (2749), 0 states have call successors, (0), 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 15:04:38,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 191.0) internal successors, (3820), 20 states have internal predecessors, (3820), 0 states have call successors, (0), 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 15:04:38,957 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 191.0) internal successors, (3820), 20 states have internal predecessors, (3820), 0 states have call successors, (0), 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 15:04:38,962 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 15 predicate places. [2023-12-09 15:04:38,962 INFO L500 AbstractCegarLoop]: Abstraction has has 200 places, 319 transitions, 1017 flow [2023-12-09 15:04:38,963 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 134.75) internal successors, (1078), 8 states have internal predecessors, (1078), 0 states have call successors, (0), 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 15:04:38,963 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:38,963 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, 1, 1, 1, 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 15:04:38,964 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 15:04:38,964 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:38,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:38,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1344939673, now seen corresponding path program 1 times [2023-12-09 15:04:38,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:38,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538057724] [2023-12-09 15:04:38,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:38,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:39,184 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 15:04:39,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:39,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538057724] [2023-12-09 15:04:39,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538057724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:39,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:39,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-09 15:04:39,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236913141] [2023-12-09 15:04:39,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:39,186 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-09 15:04:39,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:39,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-09 15:04:39,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-09 15:04:39,188 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 191 [2023-12-09 15:04:39,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 319 transitions, 1017 flow. Second operand has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 0 states have call successors, (0), 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 15:04:39,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:39,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 191 [2023-12-09 15:04:39,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:39,446 INFO L124 PetriNetUnfolderBase]: 349/1938 cut-off events. [2023-12-09 15:04:39,446 INFO L125 PetriNetUnfolderBase]: For 315/317 co-relation queries the response was YES. [2023-12-09 15:04:39,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3164 conditions, 1938 events. 349/1938 cut-off events. For 315/317 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 13079 event pairs, 116 based on Foata normal form. 40/1869 useless extension candidates. Maximal degree in co-relation 3100. Up to 442 conditions per place. [2023-12-09 15:04:39,453 INFO L140 encePairwiseOnDemand]: 181/191 looper letters, 39 selfloop transitions, 16 changer transitions 51/286 dead transitions. [2023-12-09 15:04:39,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 286 transitions, 1053 flow [2023-12-09 15:04:39,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-09 15:04:39,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-12-09 15:04:39,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 811 transitions. [2023-12-09 15:04:39,456 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8492146596858638 [2023-12-09 15:04:39,456 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 811 transitions. [2023-12-09 15:04:39,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 811 transitions. [2023-12-09 15:04:39,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:39,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 811 transitions. [2023-12-09 15:04:39,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 162.2) internal successors, (811), 5 states have internal predecessors, (811), 0 states have call successors, (0), 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 15:04:39,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 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 15:04:39,460 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 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 15:04:39,461 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 14 predicate places. [2023-12-09 15:04:39,461 INFO L500 AbstractCegarLoop]: Abstraction has has 199 places, 286 transitions, 1053 flow [2023-12-09 15:04:39,462 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.83333333333334) internal successors, (941), 6 states have internal predecessors, (941), 0 states have call successors, (0), 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 15:04:39,462 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:39,462 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, 1, 1, 1, 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 15:04:39,462 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 15:04:39,462 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:39,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:39,464 INFO L85 PathProgramCache]: Analyzing trace with hash -412318487, now seen corresponding path program 1 times [2023-12-09 15:04:39,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:39,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882577929] [2023-12-09 15:04:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:39,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:39,694 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 15:04:39,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:39,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882577929] [2023-12-09 15:04:39,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882577929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:39,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:39,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:04:39,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286326965] [2023-12-09 15:04:39,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:39,696 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:39,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:39,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:39,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:39,699 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 191 [2023-12-09 15:04:39,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 286 transitions, 1053 flow. Second operand has 8 states, 8 states have (on average 135.625) internal successors, (1085), 8 states have internal predecessors, (1085), 0 states have call successors, (0), 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 15:04:39,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:39,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 191 [2023-12-09 15:04:39,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:40,130 INFO L124 PetriNetUnfolderBase]: 348/1933 cut-off events. [2023-12-09 15:04:40,132 INFO L125 PetriNetUnfolderBase]: For 626/666 co-relation queries the response was YES. [2023-12-09 15:04:40,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3972 conditions, 1933 events. 348/1933 cut-off events. For 626/666 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 12981 event pairs, 116 based on Foata normal form. 8/1834 useless extension candidates. Maximal degree in co-relation 3904. Up to 442 conditions per place. [2023-12-09 15:04:40,148 INFO L140 encePairwiseOnDemand]: 172/191 looper letters, 90 selfloop transitions, 19 changer transitions 51/287 dead transitions. [2023-12-09 15:04:40,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 287 transitions, 1373 flow [2023-12-09 15:04:40,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-09 15:04:40,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-12-09 15:04:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1994 transitions. [2023-12-09 15:04:40,153 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7456993268511594 [2023-12-09 15:04:40,153 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1994 transitions. [2023-12-09 15:04:40,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1994 transitions. [2023-12-09 15:04:40,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:40,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1994 transitions. [2023-12-09 15:04:40,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 142.42857142857142) internal successors, (1994), 14 states have internal predecessors, (1994), 0 states have call successors, (0), 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 15:04:40,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 191.0) internal successors, (2865), 15 states have internal predecessors, (2865), 0 states have call successors, (0), 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 15:04:40,160 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 191.0) internal successors, (2865), 15 states have internal predecessors, (2865), 0 states have call successors, (0), 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 15:04:40,161 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 27 predicate places. [2023-12-09 15:04:40,161 INFO L500 AbstractCegarLoop]: Abstraction has has 212 places, 287 transitions, 1373 flow [2023-12-09 15:04:40,162 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 135.625) internal successors, (1085), 8 states have internal predecessors, (1085), 0 states have call successors, (0), 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 15:04:40,162 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:40,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:40,162 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 15:04:40,163 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:40,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:40,163 INFO L85 PathProgramCache]: Analyzing trace with hash 81555865, now seen corresponding path program 1 times [2023-12-09 15:04:40,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:40,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734724215] [2023-12-09 15:04:40,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:40,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:40,398 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 15:04:40,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:40,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734724215] [2023-12-09 15:04:40,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734724215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:40,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:40,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-09 15:04:40,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240770225] [2023-12-09 15:04:40,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:40,403 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-09 15:04:40,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:40,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-09 15:04:40,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-12-09 15:04:40,406 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 191 [2023-12-09 15:04:40,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 287 transitions, 1373 flow. Second operand has 13 states, 13 states have (on average 117.6923076923077) internal successors, (1530), 13 states have internal predecessors, (1530), 0 states have call successors, (0), 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 15:04:40,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:40,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 191 [2023-12-09 15:04:40,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:41,579 INFO L124 PetriNetUnfolderBase]: 656/2446 cut-off events. [2023-12-09 15:04:41,579 INFO L125 PetriNetUnfolderBase]: For 2080/2246 co-relation queries the response was YES. [2023-12-09 15:04:41,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6788 conditions, 2446 events. 656/2446 cut-off events. For 2080/2246 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 17435 event pairs, 95 based on Foata normal form. 11/2292 useless extension candidates. Maximal degree in co-relation 6713. Up to 628 conditions per place. [2023-12-09 15:04:41,593 INFO L140 encePairwiseOnDemand]: 167/191 looper letters, 251 selfloop transitions, 38 changer transitions 161/560 dead transitions. [2023-12-09 15:04:41,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 560 transitions, 3977 flow [2023-12-09 15:04:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-09 15:04:41,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-12-09 15:04:41,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4509 transitions. [2023-12-09 15:04:41,601 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6557591623036649 [2023-12-09 15:04:41,601 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4509 transitions. [2023-12-09 15:04:41,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4509 transitions. [2023-12-09 15:04:41,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:41,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4509 transitions. [2023-12-09 15:04:41,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 125.25) internal successors, (4509), 36 states have internal predecessors, (4509), 0 states have call successors, (0), 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 15:04:41,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 191.0) internal successors, (7067), 37 states have internal predecessors, (7067), 0 states have call successors, (0), 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 15:04:41,624 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 191.0) internal successors, (7067), 37 states have internal predecessors, (7067), 0 states have call successors, (0), 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 15:04:41,626 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 62 predicate places. [2023-12-09 15:04:41,626 INFO L500 AbstractCegarLoop]: Abstraction has has 247 places, 560 transitions, 3977 flow [2023-12-09 15:04:41,627 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 117.6923076923077) internal successors, (1530), 13 states have internal predecessors, (1530), 0 states have call successors, (0), 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 15:04:41,627 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:41,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:41,627 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 15:04:41,628 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:41,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:41,629 INFO L85 PathProgramCache]: Analyzing trace with hash -489493369, now seen corresponding path program 1 times [2023-12-09 15:04:41,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:41,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554915763] [2023-12-09 15:04:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:41,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:41,800 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 15:04:41,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:41,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554915763] [2023-12-09 15:04:41,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554915763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:41,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:41,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:04:41,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111743340] [2023-12-09 15:04:41,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:41,802 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:41,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:41,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:41,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:41,804 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 191 [2023-12-09 15:04:41,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 560 transitions, 3977 flow. Second operand has 8 states, 8 states have (on average 130.25) internal successors, (1042), 8 states have internal predecessors, (1042), 0 states have call successors, (0), 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 15:04:41,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:41,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 191 [2023-12-09 15:04:41,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:42,355 INFO L124 PetriNetUnfolderBase]: 645/2361 cut-off events. [2023-12-09 15:04:42,355 INFO L125 PetriNetUnfolderBase]: For 3210/3558 co-relation queries the response was YES. [2023-12-09 15:04:42,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7904 conditions, 2361 events. 645/2361 cut-off events. For 3210/3558 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 16910 event pairs, 53 based on Foata normal form. 19/2230 useless extension candidates. Maximal degree in co-relation 7822. Up to 614 conditions per place. [2023-12-09 15:04:42,367 INFO L140 encePairwiseOnDemand]: 176/191 looper letters, 269 selfloop transitions, 37 changer transitions 162/589 dead transitions. [2023-12-09 15:04:42,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 589 transitions, 5147 flow [2023-12-09 15:04:42,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:04:42,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:04:42,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2618 transitions. [2023-12-09 15:04:42,373 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7214108569853954 [2023-12-09 15:04:42,373 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2618 transitions. [2023-12-09 15:04:42,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2618 transitions. [2023-12-09 15:04:42,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:42,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2618 transitions. [2023-12-09 15:04:42,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.78947368421052) internal successors, (2618), 19 states have internal predecessors, (2618), 0 states have call successors, (0), 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 15:04:42,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 191.0) internal successors, (3820), 20 states have internal predecessors, (3820), 0 states have call successors, (0), 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 15:04:42,383 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 191.0) internal successors, (3820), 20 states have internal predecessors, (3820), 0 states have call successors, (0), 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 15:04:42,385 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 78 predicate places. [2023-12-09 15:04:42,385 INFO L500 AbstractCegarLoop]: Abstraction has has 263 places, 589 transitions, 5147 flow [2023-12-09 15:04:42,385 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 130.25) internal successors, (1042), 8 states have internal predecessors, (1042), 0 states have call successors, (0), 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 15:04:42,385 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:42,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:42,386 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 15:04:42,386 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:42,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:42,387 INFO L85 PathProgramCache]: Analyzing trace with hash 119955263, now seen corresponding path program 1 times [2023-12-09 15:04:42,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:42,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087573004] [2023-12-09 15:04:42,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:42,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:42,645 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 15:04:42,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:42,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087573004] [2023-12-09 15:04:42,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087573004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:42,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:42,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:04:42,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932525253] [2023-12-09 15:04:42,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:42,650 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:42,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:42,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:42,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:42,651 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2023-12-09 15:04:42,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 589 transitions, 5147 flow. Second operand has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 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 15:04:42,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:42,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2023-12-09 15:04:42,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:42,909 INFO L124 PetriNetUnfolderBase]: 546/1983 cut-off events. [2023-12-09 15:04:42,909 INFO L125 PetriNetUnfolderBase]: For 3889/4023 co-relation queries the response was YES. [2023-12-09 15:04:42,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6937 conditions, 1983 events. 546/1983 cut-off events. For 3889/4023 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 13404 event pairs, 38 based on Foata normal form. 10/1870 useless extension candidates. Maximal degree in co-relation 6835. Up to 434 conditions per place. [2023-12-09 15:04:42,920 INFO L140 encePairwiseOnDemand]: 184/191 looper letters, 80 selfloop transitions, 23 changer transitions 156/539 dead transitions. [2023-12-09 15:04:42,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 539 transitions, 4969 flow [2023-12-09 15:04:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:04:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:04:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2023-12-09 15:04:42,922 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8106457242582897 [2023-12-09 15:04:42,922 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 929 transitions. [2023-12-09 15:04:42,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 929 transitions. [2023-12-09 15:04:42,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:42,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 929 transitions. [2023-12-09 15:04:42,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 154.83333333333334) internal successors, (929), 6 states have internal predecessors, (929), 0 states have call successors, (0), 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 15:04:42,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 0 states have call successors, (0), 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 15:04:42,926 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 0 states have call successors, (0), 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 15:04:42,928 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 78 predicate places. [2023-12-09 15:04:42,928 INFO L500 AbstractCegarLoop]: Abstraction has has 263 places, 539 transitions, 4969 flow [2023-12-09 15:04:42,929 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 151.125) internal successors, (1209), 8 states have internal predecessors, (1209), 0 states have call successors, (0), 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 15:04:42,929 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:42,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:42,929 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 15:04:42,929 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:42,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:42,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2056654484, now seen corresponding path program 1 times [2023-12-09 15:04:42,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:42,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371557257] [2023-12-09 15:04:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:42,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:43,216 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 15:04:43,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:43,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371557257] [2023-12-09 15:04:43,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371557257] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:43,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:43,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-09 15:04:43,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780100175] [2023-12-09 15:04:43,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:43,222 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-09 15:04:43,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:43,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-09 15:04:43,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-09 15:04:43,225 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 191 [2023-12-09 15:04:43,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 539 transitions, 4969 flow. Second operand has 13 states, 13 states have (on average 123.23076923076923) internal successors, (1602), 13 states have internal predecessors, (1602), 0 states have call successors, (0), 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 15:04:43,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:43,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 191 [2023-12-09 15:04:43,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:44,595 INFO L124 PetriNetUnfolderBase]: 1224/4148 cut-off events. [2023-12-09 15:04:44,595 INFO L125 PetriNetUnfolderBase]: For 13740/13898 co-relation queries the response was YES. [2023-12-09 15:04:44,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15715 conditions, 4148 events. 1224/4148 cut-off events. For 13740/13898 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 31777 event pairs, 76 based on Foata normal form. 51/4015 useless extension candidates. Maximal degree in co-relation 15609. Up to 739 conditions per place. [2023-12-09 15:04:44,631 INFO L140 encePairwiseOnDemand]: 166/191 looper letters, 312 selfloop transitions, 60 changer transitions 472/979 dead transitions. [2023-12-09 15:04:44,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 979 transitions, 11299 flow [2023-12-09 15:04:44,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-09 15:04:44,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-12-09 15:04:44,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 5277 transitions. [2023-12-09 15:04:44,642 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6738602988124122 [2023-12-09 15:04:44,642 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 5277 transitions. [2023-12-09 15:04:44,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 5277 transitions. [2023-12-09 15:04:44,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:44,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 5277 transitions. [2023-12-09 15:04:44,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 128.70731707317074) internal successors, (5277), 41 states have internal predecessors, (5277), 0 states have call successors, (0), 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 15:04:44,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 191.0) internal successors, (8022), 42 states have internal predecessors, (8022), 0 states have call successors, (0), 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 15:04:44,677 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 191.0) internal successors, (8022), 42 states have internal predecessors, (8022), 0 states have call successors, (0), 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 15:04:44,677 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 118 predicate places. [2023-12-09 15:04:44,678 INFO L500 AbstractCegarLoop]: Abstraction has has 303 places, 979 transitions, 11299 flow [2023-12-09 15:04:44,678 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 123.23076923076923) internal successors, (1602), 13 states have internal predecessors, (1602), 0 states have call successors, (0), 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 15:04:44,678 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:44,678 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:44,678 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 15:04:44,679 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:44,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:44,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1870285771, now seen corresponding path program 1 times [2023-12-09 15:04:44,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:44,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197137959] [2023-12-09 15:04:44,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:44,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:44,882 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 15:04:44,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:44,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197137959] [2023-12-09 15:04:44,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197137959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:44,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:44,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:04:44,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178651103] [2023-12-09 15:04:44,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:44,883 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:44,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:44,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:44,885 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 191 [2023-12-09 15:04:44,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 979 transitions, 11299 flow. Second operand has 8 states, 8 states have (on average 131.25) internal successors, (1050), 8 states have internal predecessors, (1050), 0 states have call successors, (0), 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 15:04:44,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:44,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 191 [2023-12-09 15:04:44,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:45,926 INFO L124 PetriNetUnfolderBase]: 1216/4115 cut-off events. [2023-12-09 15:04:45,926 INFO L125 PetriNetUnfolderBase]: For 18323/18511 co-relation queries the response was YES. [2023-12-09 15:04:45,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17499 conditions, 4115 events. 1216/4115 cut-off events. For 18323/18511 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 31471 event pairs, 72 based on Foata normal form. 48/3989 useless extension candidates. Maximal degree in co-relation 17386. Up to 739 conditions per place. [2023-12-09 15:04:45,955 INFO L140 encePairwiseOnDemand]: 173/191 looper letters, 301 selfloop transitions, 47 changer transitions 473/987 dead transitions. [2023-12-09 15:04:45,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 987 transitions, 12991 flow [2023-12-09 15:04:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-09 15:04:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-12-09 15:04:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2606 transitions. [2023-12-09 15:04:45,957 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7181041609258749 [2023-12-09 15:04:45,957 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2606 transitions. [2023-12-09 15:04:45,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2606 transitions. [2023-12-09 15:04:45,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:45,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2606 transitions. [2023-12-09 15:04:45,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.1578947368421) internal successors, (2606), 19 states have internal predecessors, (2606), 0 states have call successors, (0), 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 15:04:45,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 191.0) internal successors, (3820), 20 states have internal predecessors, (3820), 0 states have call successors, (0), 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 15:04:45,967 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 191.0) internal successors, (3820), 20 states have internal predecessors, (3820), 0 states have call successors, (0), 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 15:04:45,969 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 134 predicate places. [2023-12-09 15:04:45,969 INFO L500 AbstractCegarLoop]: Abstraction has has 319 places, 987 transitions, 12991 flow [2023-12-09 15:04:45,970 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 131.25) internal successors, (1050), 8 states have internal predecessors, (1050), 0 states have call successors, (0), 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 15:04:45,970 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:45,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:45,970 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 15:04:45,971 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:45,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1826760723, now seen corresponding path program 1 times [2023-12-09 15:04:45,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:45,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435542125] [2023-12-09 15:04:45,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:45,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:46,145 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 15:04:46,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:46,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435542125] [2023-12-09 15:04:46,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435542125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:46,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:46,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-09 15:04:46,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6122446] [2023-12-09 15:04:46,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:46,146 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-09 15:04:46,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:46,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-09 15:04:46,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-09 15:04:46,148 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 191 [2023-12-09 15:04:46,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 987 transitions, 12991 flow. Second operand has 8 states, 8 states have (on average 136.125) internal successors, (1089), 8 states have internal predecessors, (1089), 0 states have call successors, (0), 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 15:04:46,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:46,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 191 [2023-12-09 15:04:46,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:47,228 INFO L124 PetriNetUnfolderBase]: 1209/4109 cut-off events. [2023-12-09 15:04:47,228 INFO L125 PetriNetUnfolderBase]: For 23977/24244 co-relation queries the response was YES. [2023-12-09 15:04:47,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19352 conditions, 4109 events. 1209/4109 cut-off events. For 23977/24244 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 31361 event pairs, 76 based on Foata normal form. 31/3989 useless extension candidates. Maximal degree in co-relation 19235. Up to 715 conditions per place. [2023-12-09 15:04:47,251 INFO L140 encePairwiseOnDemand]: 174/191 looper letters, 257 selfloop transitions, 40 changer transitions 570/1041 dead transitions. [2023-12-09 15:04:47,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 1041 transitions, 15455 flow [2023-12-09 15:04:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-09 15:04:47,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-12-09 15:04:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2976 transitions. [2023-12-09 15:04:47,258 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7419596110695588 [2023-12-09 15:04:47,258 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2976 transitions. [2023-12-09 15:04:47,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2976 transitions. [2023-12-09 15:04:47,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:47,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2976 transitions. [2023-12-09 15:04:47,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 141.71428571428572) internal successors, (2976), 21 states have internal predecessors, (2976), 0 states have call successors, (0), 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 15:04:47,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 191.0) internal successors, (4202), 22 states have internal predecessors, (4202), 0 states have call successors, (0), 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 15:04:47,266 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 191.0) internal successors, (4202), 22 states have internal predecessors, (4202), 0 states have call successors, (0), 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 15:04:47,267 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 154 predicate places. [2023-12-09 15:04:47,267 INFO L500 AbstractCegarLoop]: Abstraction has has 339 places, 1041 transitions, 15455 flow [2023-12-09 15:04:47,268 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 136.125) internal successors, (1089), 8 states have internal predecessors, (1089), 0 states have call successors, (0), 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 15:04:47,268 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:47,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:47,268 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 15:04:47,268 INFO L425 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:47,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:47,269 INFO L85 PathProgramCache]: Analyzing trace with hash 316674784, now seen corresponding path program 1 times [2023-12-09 15:04:47,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:47,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878042038] [2023-12-09 15:04:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:47,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:47,478 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 15:04:47,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:47,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878042038] [2023-12-09 15:04:47,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878042038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:47,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:47,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-09 15:04:47,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664810774] [2023-12-09 15:04:47,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:47,485 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-09 15:04:47,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:47,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-09 15:04:47,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-09 15:04:47,486 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 191 [2023-12-09 15:04:47,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 1041 transitions, 15455 flow. Second operand has 11 states, 11 states have (on average 126.36363636363636) internal successors, (1390), 11 states have internal predecessors, (1390), 0 states have call successors, (0), 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 15:04:47,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:47,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 191 [2023-12-09 15:04:47,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:48,853 INFO L124 PetriNetUnfolderBase]: 1239/4288 cut-off events. [2023-12-09 15:04:48,854 INFO L125 PetriNetUnfolderBase]: For 29520/30002 co-relation queries the response was YES. [2023-12-09 15:04:48,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22164 conditions, 4288 events. 1239/4288 cut-off events. For 29520/30002 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 33200 event pairs, 74 based on Foata normal form. 108/4243 useless extension candidates. Maximal degree in co-relation 22044. Up to 748 conditions per place. [2023-12-09 15:04:48,878 INFO L140 encePairwiseOnDemand]: 169/191 looper letters, 237 selfloop transitions, 56 changer transitions 685/1118 dead transitions. [2023-12-09 15:04:48,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1118 transitions, 18557 flow [2023-12-09 15:04:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-09 15:04:48,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-12-09 15:04:48,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2677 transitions. [2023-12-09 15:04:48,882 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.7007853403141361 [2023-12-09 15:04:48,882 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2677 transitions. [2023-12-09 15:04:48,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2677 transitions. [2023-12-09 15:04:48,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:48,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2677 transitions. [2023-12-09 15:04:48,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 133.85) internal successors, (2677), 20 states have internal predecessors, (2677), 0 states have call successors, (0), 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 15:04:48,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 191.0) internal successors, (4011), 21 states have internal predecessors, (4011), 0 states have call successors, (0), 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 15:04:48,895 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 191.0) internal successors, (4011), 21 states have internal predecessors, (4011), 0 states have call successors, (0), 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 15:04:48,895 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 173 predicate places. [2023-12-09 15:04:48,896 INFO L500 AbstractCegarLoop]: Abstraction has has 358 places, 1118 transitions, 18557 flow [2023-12-09 15:04:48,896 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.36363636363636) internal successors, (1390), 11 states have internal predecessors, (1390), 0 states have call successors, (0), 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 15:04:48,896 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 15:04:48,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:48,896 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-09 15:04:48,897 INFO L425 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-09 15:04:48,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 15:04:48,898 INFO L85 PathProgramCache]: Analyzing trace with hash 154881277, now seen corresponding path program 1 times [2023-12-09 15:04:48,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 15:04:48,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288033604] [2023-12-09 15:04:48,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 15:04:48,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 15:04:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 15:04:49,209 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 15:04:49,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 15:04:49,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288033604] [2023-12-09 15:04:49,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288033604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 15:04:49,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 15:04:49,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-09 15:04:49,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555937536] [2023-12-09 15:04:49,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 15:04:49,211 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-09 15:04:49,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 15:04:49,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-09 15:04:49,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-09 15:04:49,212 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 191 [2023-12-09 15:04:49,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 1118 transitions, 18557 flow. Second operand has 7 states, 7 states have (on average 152.28571428571428) internal successors, (1066), 7 states have internal predecessors, (1066), 0 states have call successors, (0), 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 15:04:49,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 15:04:49,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 191 [2023-12-09 15:04:49,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 15:04:49,723 INFO L124 PetriNetUnfolderBase]: 856/3141 cut-off events. [2023-12-09 15:04:49,723 INFO L125 PetriNetUnfolderBase]: For 29808/29908 co-relation queries the response was YES. [2023-12-09 15:04:49,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16141 conditions, 3141 events. 856/3141 cut-off events. For 29808/29908 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 22820 event pairs, 31 based on Foata normal form. 99/3104 useless extension candidates. Maximal degree in co-relation 16001. Up to 717 conditions per place. [2023-12-09 15:04:49,736 INFO L140 encePairwiseOnDemand]: 184/191 looper letters, 0 selfloop transitions, 0 changer transitions 897/897 dead transitions. [2023-12-09 15:04:49,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 897 transitions, 15209 flow [2023-12-09 15:04:49,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 15:04:49,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 15:04:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2023-12-09 15:04:49,738 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8106457242582897 [2023-12-09 15:04:49,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 929 transitions. [2023-12-09 15:04:49,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 929 transitions. [2023-12-09 15:04:49,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 15:04:49,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 929 transitions. [2023-12-09 15:04:49,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 154.83333333333334) internal successors, (929), 6 states have internal predecessors, (929), 0 states have call successors, (0), 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 15:04:49,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 0 states have call successors, (0), 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 15:04:49,741 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 0 states have call successors, (0), 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 15:04:49,741 INFO L308 CegarLoopForPetriNet]: 185 programPoint places, 172 predicate places. [2023-12-09 15:04:49,741 INFO L500 AbstractCegarLoop]: Abstraction has has 357 places, 897 transitions, 15209 flow [2023-12-09 15:04:49,742 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 152.28571428571428) internal successors, (1066), 7 states have internal predecessors, (1066), 0 states have call successors, (0), 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 15:04:49,748 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i_BEv2_AllErrorsAtOnce [2023-12-09 15:04:49,826 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-12-09 15:04:49,827 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-09 15:04:49,827 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-09 15:04:49,827 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-09 15:04:49,827 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-09 15:04:49,827 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-09 15:04:49,827 INFO L810 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-09 15:04:49,827 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-09 15:04:49,828 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 15:04:49,831 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 15:04:49,831 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 15:04:49,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:04:49 BasicIcfg [2023-12-09 15:04:49,839 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 15:04:49,839 INFO L158 Benchmark]: Toolchain (without parser) took 13493.72ms. Allocated memory was 190.8MB in the beginning and 915.4MB in the end (delta: 724.6MB). Free memory was 144.2MB in the beginning and 457.0MB in the end (delta: -312.8MB). Peak memory consumption was 412.3MB. Max. memory is 8.0GB. [2023-12-09 15:04:49,839 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 190.8MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 15:04:49,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.97ms. Allocated memory is still 190.8MB. Free memory was 144.2MB in the beginning and 123.7MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-09 15:04:49,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.70ms. Allocated memory is still 190.8MB. Free memory was 123.7MB in the beginning and 121.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:04:49,840 INFO L158 Benchmark]: Boogie Preprocessor took 39.09ms. Allocated memory is still 190.8MB. Free memory was 121.1MB in the beginning and 119.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-09 15:04:49,840 INFO L158 Benchmark]: RCFGBuilder took 409.52ms. Allocated memory is still 190.8MB. Free memory was 119.5MB in the beginning and 97.0MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-09 15:04:49,840 INFO L158 Benchmark]: TraceAbstraction took 12555.09ms. Allocated memory was 190.8MB in the beginning and 915.4MB in the end (delta: 724.6MB). Free memory was 96.5MB in the beginning and 457.0MB in the end (delta: -360.5MB). Peak memory consumption was 364.1MB. Max. memory is 8.0GB. [2023-12-09 15:04:49,841 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 190.8MB. Free memory is still 148.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 432.97ms. Allocated memory is still 190.8MB. Free memory was 144.2MB in the beginning and 123.7MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.70ms. Allocated memory is still 190.8MB. Free memory was 123.7MB in the beginning and 121.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.09ms. Allocated memory is still 190.8MB. Free memory was 121.1MB in the beginning and 119.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 409.52ms. Allocated memory is still 190.8MB. Free memory was 119.5MB in the beginning and 97.0MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 12555.09ms. Allocated memory was 190.8MB in the beginning and 915.4MB in the end (delta: 724.6MB). Free memory was 96.5MB in the beginning and 457.0MB in the end (delta: -360.5MB). Peak memory consumption was 364.1MB. 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 - 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 - 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, 269 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: 12.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2373 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2373 mSDsluCounter, 3431 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2879 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5037 IncrementalHoareTripleChecker+Invalid, 5128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 552 mSDtfsCounter, 5037 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1359 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18557occurred in iteration=10, InterpolantAutomatonStates: 206, 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, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1168 NumberOfCodeBlocks, 1168 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1157 ConstructedInterpolants, 0 QuantifiedInterpolants, 4812 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 15:04:49,859 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...