/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-29 19:50:21,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 19:50:21,568 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-29 19:50:21,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 19:50:21,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 19:50:21,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 19:50:21,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 19:50:21,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 19:50:21,595 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 19:50:21,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 19:50:21,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 19:50:21,598 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 19:50:21,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 19:50:21,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 19:50:21,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 19:50:21,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 19:50:21,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 19:50:21,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 19:50:21,600 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 19:50:21,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 19:50:21,600 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 19:50:21,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 19:50:21,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 19:50:21,601 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-29 19:50:21,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 19:50:21,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:50:21,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 19:50:21,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 19:50:21,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 19:50:21,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 19:50:21,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 19:50:21,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 19:50:21,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 19:50:21,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-11-29 19:50:21,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 19:50:21,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 19:50:21,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 19:50:21,787 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 19:50:21,787 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 19:50:21,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-11-29 19:50:22,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 19:50:22,957 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 19:50:22,957 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-11-29 19:50:22,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c90b091a7/d9e736a15cab48ed907fe0eecc92c0db/FLAGa01361442 [2023-11-29 19:50:22,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c90b091a7/d9e736a15cab48ed907fe0eecc92c0db [2023-11-29 19:50:22,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 19:50:22,981 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-29 19:50:22,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 19:50:22,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 19:50:22,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 19:50:22,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:50:22" (1/1) ... [2023-11-29 19:50:22,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375321f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:22, skipping insertion in model container [2023-11-29 19:50:22,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:50:22" (1/1) ... [2023-11-29 19:50:23,020 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 19:50:23,136 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2023-11-29 19:50:23,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:50:23,269 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 19:50:23,277 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2023-11-29 19:50:23,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 19:50:23,335 INFO L206 MainTranslator]: Completed translation [2023-11-29 19:50:23,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23 WrapperNode [2023-11-29 19:50:23,336 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 19:50:23,337 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 19:50:23,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 19:50:23,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 19:50:23,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,363 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,375 INFO L138 Inliner]: procedures = 163, calls = 48, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2023-11-29 19:50:23,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 19:50:23,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 19:50:23,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 19:50:23,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 19:50:23,382 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,383 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,389 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 19:50:23,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 19:50:23,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 19:50:23,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 19:50:23,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (1/1) ... [2023-11-29 19:50:23,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-29 19:50:23,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-29 19:50:23,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-29 19:50:23,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-29 19:50:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 19:50:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 19:50:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 19:50:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 19:50:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 19:50:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 19:50:23,440 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 19:50:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 19:50:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 19:50:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 19:50:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 19:50:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 19:50:23,442 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 19:50:23,547 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 19:50:23,549 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 19:50:23,693 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 19:50:23,719 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 19:50:23,719 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 19:50:23,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:50:23 BoogieIcfgContainer [2023-11-29 19:50:23,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 19:50:23,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 19:50:23,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 19:50:23,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 19:50:23,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:50:22" (1/3) ... [2023-11-29 19:50:23,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10df36bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:50:23, skipping insertion in model container [2023-11-29 19:50:23,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:50:23" (2/3) ... [2023-11-29 19:50:23,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10df36bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:50:23, skipping insertion in model container [2023-11-29 19:50:23,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:50:23" (3/3) ... [2023-11-29 19:50:23,725 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2023-11-29 19:50:23,735 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 19:50:23,736 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 19:50:23,736 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 19:50:23,779 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 19:50:23,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 104 transitions, 215 flow [2023-11-29 19:50:23,880 INFO L124 PetriNetUnfolderBase]: 2/103 cut-off events. [2023-11-29 19:50:23,880 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 19:50:23,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 2/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-11-29 19:50:23,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 104 transitions, 215 flow [2023-11-29 19:50:23,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 85 transitions, 173 flow [2023-11-29 19:50:23,905 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 19:50:23,911 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;@564f1e40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 19:50:23,911 INFO L363 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-29 19:50:23,931 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 19:50:23,931 INFO L124 PetriNetUnfolderBase]: 0/58 cut-off events. [2023-11-29 19:50:23,931 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 19:50:23,931 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:23,931 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:50:23,932 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 19:50:23,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:23,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1939242853, now seen corresponding path program 1 times [2023-11-29 19:50:23,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:23,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741414732] [2023-11-29 19:50:23,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:23,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:50:24,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:24,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741414732] [2023-11-29 19:50:24,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741414732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:24,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:24,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 19:50:24,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063544636] [2023-11-29 19:50:24,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:24,278 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 19:50:24,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:24,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 19:50:24,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 19:50:24,297 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 104 [2023-11-29 19:50:24,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 85 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:24,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 104 [2023-11-29 19:50:24,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:24,516 INFO L124 PetriNetUnfolderBase]: 203/641 cut-off events. [2023-11-29 19:50:24,516 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 19:50:24,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 641 events. 203/641 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3223 event pairs, 67 based on Foata normal form. 18/649 useless extension candidates. Maximal degree in co-relation 1054. Up to 182 conditions per place. [2023-11-29 19:50:24,523 INFO L140 encePairwiseOnDemand]: 91/104 looper letters, 52 selfloop transitions, 14 changer transitions 20/140 dead transitions. [2023-11-29 19:50:24,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 140 transitions, 455 flow [2023-11-29 19:50:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 19:50:24,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 19:50:24,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 677 transitions. [2023-11-29 19:50:24,536 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7232905982905983 [2023-11-29 19:50:24,537 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 677 transitions. [2023-11-29 19:50:24,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 677 transitions. [2023-11-29 19:50:24,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:24,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 677 transitions. [2023-11-29 19:50:24,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 75.22222222222223) internal successors, (677), 9 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,548 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,553 INFO L307 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2023-11-29 19:50:24,553 INFO L500 AbstractCegarLoop]: Abstraction has has 95 places, 140 transitions, 455 flow [2023-11-29 19:50:24,553 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.6) internal successors, (333), 5 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,553 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:24,553 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:50:24,553 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 19:50:24,554 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 19:50:24,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:24,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1904814871, now seen corresponding path program 1 times [2023-11-29 19:50:24,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:24,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174474957] [2023-11-29 19:50:24,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:24,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:50:24,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:24,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174474957] [2023-11-29 19:50:24,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174474957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:24,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:24,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:50:24,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815709187] [2023-11-29 19:50:24,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:24,699 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:50:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:24,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:50:24,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:50:24,701 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 104 [2023-11-29 19:50:24,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 140 transitions, 455 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:24,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 104 [2023-11-29 19:50:24,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:24,829 INFO L124 PetriNetUnfolderBase]: 188/623 cut-off events. [2023-11-29 19:50:24,829 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES. [2023-11-29 19:50:24,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 623 events. 188/623 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3221 event pairs, 36 based on Foata normal form. 10/627 useless extension candidates. Maximal degree in co-relation 1272. Up to 195 conditions per place. [2023-11-29 19:50:24,831 INFO L140 encePairwiseOnDemand]: 95/104 looper letters, 38 selfloop transitions, 11 changer transitions 45/162 dead transitions. [2023-11-29 19:50:24,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 162 transitions, 705 flow [2023-11-29 19:50:24,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 19:50:24,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 19:50:24,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 391 transitions. [2023-11-29 19:50:24,833 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7519230769230769 [2023-11-29 19:50:24,833 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 391 transitions. [2023-11-29 19:50:24,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 391 transitions. [2023-11-29 19:50:24,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:24,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 391 transitions. [2023-11-29 19:50:24,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.2) internal successors, (391), 5 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,835 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,836 INFO L307 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2023-11-29 19:50:24,836 INFO L500 AbstractCegarLoop]: Abstraction has has 99 places, 162 transitions, 705 flow [2023-11-29 19:50:24,836 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,837 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:24,837 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:50:24,837 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 19:50:24,837 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 19:50:24,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:24,837 INFO L85 PathProgramCache]: Analyzing trace with hash 107961849, now seen corresponding path program 1 times [2023-11-29 19:50:24,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:24,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023529382] [2023-11-29 19:50:24,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:24,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:24,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:50:24,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:24,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023529382] [2023-11-29 19:50:24,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023529382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:24,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:24,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 19:50:24,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556146034] [2023-11-29 19:50:24,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:24,987 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 19:50:24,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:24,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 19:50:24,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 19:50:24,989 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 104 [2023-11-29 19:50:24,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 162 transitions, 705 flow. Second operand has 8 states, 8 states have (on average 67.125) internal successors, (537), 8 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:24,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:24,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 104 [2023-11-29 19:50:24,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:25,115 INFO L124 PetriNetUnfolderBase]: 70/324 cut-off events. [2023-11-29 19:50:25,116 INFO L125 PetriNetUnfolderBase]: For 313/313 co-relation queries the response was YES. [2023-11-29 19:50:25,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 324 events. 70/324 cut-off events. For 313/313 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1344 event pairs, 10 based on Foata normal form. 35/358 useless extension candidates. Maximal degree in co-relation 761. Up to 100 conditions per place. [2023-11-29 19:50:25,120 INFO L140 encePairwiseOnDemand]: 94/104 looper letters, 34 selfloop transitions, 13 changer transitions 34/130 dead transitions. [2023-11-29 19:50:25,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 130 transitions, 687 flow [2023-11-29 19:50:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 19:50:25,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 19:50:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2023-11-29 19:50:25,122 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6826923076923077 [2023-11-29 19:50:25,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 426 transitions. [2023-11-29 19:50:25,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 426 transitions. [2023-11-29 19:50:25,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:25,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 426 transitions. [2023-11-29 19:50:25,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,124 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,125 INFO L307 CegarLoopForPetriNet]: 88 programPoint places, 13 predicate places. [2023-11-29 19:50:25,125 INFO L500 AbstractCegarLoop]: Abstraction has has 101 places, 130 transitions, 687 flow [2023-11-29 19:50:25,125 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.125) internal successors, (537), 8 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,125 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:25,126 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:50:25,126 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 19:50:25,126 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 19:50:25,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:25,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1195728789, now seen corresponding path program 2 times [2023-11-29 19:50:25,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:25,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836839529] [2023-11-29 19:50:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:25,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:50:25,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:25,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836839529] [2023-11-29 19:50:25,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836839529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:25,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:25,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 19:50:25,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487717783] [2023-11-29 19:50:25,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:25,262 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 19:50:25,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:25,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 19:50:25,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 19:50:25,264 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 104 [2023-11-29 19:50:25,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 130 transitions, 687 flow. Second operand has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:25,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 104 [2023-11-29 19:50:25,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:25,335 INFO L124 PetriNetUnfolderBase]: 53/276 cut-off events. [2023-11-29 19:50:25,335 INFO L125 PetriNetUnfolderBase]: For 399/399 co-relation queries the response was YES. [2023-11-29 19:50:25,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 276 events. 53/276 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1009 event pairs, 7 based on Foata normal form. 2/278 useless extension candidates. Maximal degree in co-relation 736. Up to 82 conditions per place. [2023-11-29 19:50:25,336 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 32 selfloop transitions, 6 changer transitions 34/119 dead transitions. [2023-11-29 19:50:25,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 119 transitions, 757 flow [2023-11-29 19:50:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 19:50:25,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 19:50:25,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 385 transitions. [2023-11-29 19:50:25,338 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.7403846153846154 [2023-11-29 19:50:25,338 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 385 transitions. [2023-11-29 19:50:25,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 385 transitions. [2023-11-29 19:50:25,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:25,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 385 transitions. [2023-11-29 19:50:25,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.0) internal successors, (385), 5 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,340 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,341 INFO L307 CegarLoopForPetriNet]: 88 programPoint places, 14 predicate places. [2023-11-29 19:50:25,341 INFO L500 AbstractCegarLoop]: Abstraction has has 102 places, 119 transitions, 757 flow [2023-11-29 19:50:25,342 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.16666666666667) internal successors, (439), 6 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,342 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:25,342 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:50:25,342 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 19:50:25,343 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 19:50:25,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:25,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1282372008, now seen corresponding path program 1 times [2023-11-29 19:50:25,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:25,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871948561] [2023-11-29 19:50:25,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:25,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:25,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:50:25,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:25,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871948561] [2023-11-29 19:50:25,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871948561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:25,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:25,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 19:50:25,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714087407] [2023-11-29 19:50:25,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:25,407 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 19:50:25,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:25,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 19:50:25,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 19:50:25,408 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 104 [2023-11-29 19:50:25,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 119 transitions, 757 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:25,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 104 [2023-11-29 19:50:25,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:25,463 INFO L124 PetriNetUnfolderBase]: 56/326 cut-off events. [2023-11-29 19:50:25,464 INFO L125 PetriNetUnfolderBase]: For 810/810 co-relation queries the response was YES. [2023-11-29 19:50:25,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1092 conditions, 326 events. 56/326 cut-off events. For 810/810 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1304 event pairs, 3 based on Foata normal form. 9/335 useless extension candidates. Maximal degree in co-relation 994. Up to 94 conditions per place. [2023-11-29 19:50:25,465 INFO L140 encePairwiseOnDemand]: 96/104 looper letters, 26 selfloop transitions, 18 changer transitions 44/141 dead transitions. [2023-11-29 19:50:25,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 141 transitions, 1133 flow [2023-11-29 19:50:25,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 19:50:25,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 19:50:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2023-11-29 19:50:25,490 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.842948717948718 [2023-11-29 19:50:25,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2023-11-29 19:50:25,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2023-11-29 19:50:25,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:25,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2023-11-29 19:50:25,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,492 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,492 INFO L307 CegarLoopForPetriNet]: 88 programPoint places, 16 predicate places. [2023-11-29 19:50:25,492 INFO L500 AbstractCegarLoop]: Abstraction has has 104 places, 141 transitions, 1133 flow [2023-11-29 19:50:25,492 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,492 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-29 19:50:25,492 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 19:50:25,493 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 19:50:25,493 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-29 19:50:25,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 19:50:25,493 INFO L85 PathProgramCache]: Analyzing trace with hash 843937464, now seen corresponding path program 2 times [2023-11-29 19:50:25,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 19:50:25,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170638569] [2023-11-29 19:50:25,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 19:50:25,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 19:50:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 19:50:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 19:50:25,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 19:50:25,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170638569] [2023-11-29 19:50:25,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170638569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 19:50:25,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 19:50:25,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 19:50:25,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707465819] [2023-11-29 19:50:25,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 19:50:25,622 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 19:50:25,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 19:50:25,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 19:50:25,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 19:50:25,623 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 104 [2023-11-29 19:50:25,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 141 transitions, 1133 flow. Second operand has 8 states, 8 states have (on average 67.625) internal successors, (541), 8 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 19:50:25,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 104 [2023-11-29 19:50:25,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 19:50:25,694 INFO L124 PetriNetUnfolderBase]: 25/204 cut-off events. [2023-11-29 19:50:25,694 INFO L125 PetriNetUnfolderBase]: For 766/766 co-relation queries the response was YES. [2023-11-29 19:50:25,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 204 events. 25/204 cut-off events. For 766/766 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 574 event pairs, 2 based on Foata normal form. 12/216 useless extension candidates. Maximal degree in co-relation 631. Up to 62 conditions per place. [2023-11-29 19:50:25,695 INFO L140 encePairwiseOnDemand]: 98/104 looper letters, 0 selfloop transitions, 0 changer transitions 109/109 dead transitions. [2023-11-29 19:50:25,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 109 transitions, 917 flow [2023-11-29 19:50:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 19:50:25,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 19:50:25,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 422 transitions. [2023-11-29 19:50:25,696 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.6762820512820513 [2023-11-29 19:50:25,696 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 422 transitions. [2023-11-29 19:50:25,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 422 transitions. [2023-11-29 19:50:25,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 19:50:25,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 422 transitions. [2023-11-29 19:50:25,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.33333333333333) internal successors, (422), 6 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,699 INFO L307 CegarLoopForPetriNet]: 88 programPoint places, 19 predicate places. [2023-11-29 19:50:25,699 INFO L500 AbstractCegarLoop]: Abstraction has has 107 places, 109 transitions, 917 flow [2023-11-29 19:50:25,699 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 67.625) internal successors, (541), 8 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 19:50:25,703 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i_BEv2_AllErrorsAtOnce [2023-11-29 19:50:25,718 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-29 19:50:25,718 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-29 19:50:25,718 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-29 19:50:25,718 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 19:50:25,718 INFO L457 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2023-11-29 19:50:25,720 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 19:50:25,720 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 19:50:25,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:50:25 BasicIcfg [2023-11-29 19:50:25,724 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 19:50:25,724 INFO L158 Benchmark]: Toolchain (without parser) took 2743.54ms. Allocated memory was 358.6MB in the beginning and 551.6MB in the end (delta: 192.9MB). Free memory was 318.2MB in the beginning and 435.8MB in the end (delta: -117.6MB). Peak memory consumption was 77.8MB. Max. memory is 16.0GB. [2023-11-29 19:50:25,725 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 358.6MB. Free memory was 314.9MB in the beginning and 314.7MB in the end (delta: 236.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:50:25,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.52ms. Allocated memory is still 358.6MB. Free memory was 317.8MB in the beginning and 298.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-11-29 19:50:25,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.88ms. Allocated memory is still 358.6MB. Free memory was 298.2MB in the beginning and 296.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-29 19:50:25,725 INFO L158 Benchmark]: Boogie Preprocessor took 16.98ms. Allocated memory is still 358.6MB. Free memory was 296.2MB in the beginning and 294.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-11-29 19:50:25,726 INFO L158 Benchmark]: RCFGBuilder took 326.89ms. Allocated memory is still 358.6MB. Free memory was 294.7MB in the beginning and 275.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-11-29 19:50:25,726 INFO L158 Benchmark]: TraceAbstraction took 2002.54ms. Allocated memory was 358.6MB in the beginning and 551.6MB in the end (delta: 192.9MB). Free memory was 275.2MB in the beginning and 435.8MB in the end (delta: -160.6MB). Peak memory consumption was 33.8MB. Max. memory is 16.0GB. [2023-11-29 19:50:25,727 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 358.6MB. Free memory was 314.9MB in the beginning and 314.7MB in the end (delta: 236.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 354.52ms. Allocated memory is still 358.6MB. Free memory was 317.8MB in the beginning and 298.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.88ms. Allocated memory is still 358.6MB. Free memory was 298.2MB in the beginning and 296.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 16.98ms. Allocated memory is still 358.6MB. Free memory was 296.2MB in the beginning and 294.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 326.89ms. Allocated memory is still 358.6MB. Free memory was 294.7MB in the beginning and 275.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 2002.54ms. Allocated memory was 358.6MB in the beginning and 551.6MB in the end (delta: 192.9MB). Free memory was 275.2MB in the beginning and 435.8MB in the end (delta: -160.6MB). Peak memory consumption was 33.8MB. Max. memory is 16.0GB. * 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 126 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 235 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 235 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 496 IncrementalHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 31 mSDtfsCounter, 496 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1133occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 342 ConstructedInterpolants, 0 QuantifiedInterpolants, 1357 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 19:50:25,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...