/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:56:10,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:56:10,786 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-VariableLbe.epf [2023-08-26 08:56:10,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:56:10,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:56:10,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:56:10,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:56:10,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:56:10,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:56:10,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:56:10,828 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:56:10,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:56:10,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:56:10,830 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:56:10,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:56:10,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:56:10,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:56:10,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:56:10,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:56:10,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:56:10,832 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:56:10,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:56:10,833 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:56:10,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:56:10,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:56:10,834 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:56:10,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:56:10,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:56:10,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:56:10,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:56:10,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:56:10,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:56:10,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:56:10,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:56:10,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:56:10,836 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:56:11,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:56:11,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:56:11,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:56:11,148 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:56:11,148 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:56:11,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c [2023-08-26 08:56:12,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:56:12,547 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:56:12,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-subst.wvr.c [2023-08-26 08:56:12,560 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e02f4d2/1a2cb87b4c6f4be28c1148a68bf97acb/FLAGda894bb89 [2023-08-26 08:56:12,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e02f4d2/1a2cb87b4c6f4be28c1148a68bf97acb [2023-08-26 08:56:12,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:56:12,582 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:56:12,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:56:12,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:56:12,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:56:12,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53331371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12, skipping insertion in model container [2023-08-26 08:56:12,590 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,608 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:56:12,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:56:12,764 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:56:12,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:56:12,800 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:56:12,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12 WrapperNode [2023-08-26 08:56:12,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:56:12,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:56:12,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:56:12,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:56:12,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,854 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 270 [2023-08-26 08:56:12,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:56:12,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:56:12,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:56:12,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:56:12,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,878 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:56:12,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:56:12,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:56:12,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:56:12,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (1/1) ... [2023-08-26 08:56:12,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:56:12,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:56:12,918 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) [2023-08-26 08:56:12,928 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 [2023-08-26 08:56:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:56:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:56:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:56:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:56:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:56:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 08:56:12,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 08:56:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:56:12,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:56:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:56:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:56:12,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:56:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:56:12,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:56:12,959 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:56:13,073 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:56:13,075 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:56:13,526 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:56:13,536 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:56:13,536 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 08:56:13,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:56:13 BoogieIcfgContainer [2023-08-26 08:56:13,538 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:56:13,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:56:13,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:56:13,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:56:13,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:56:12" (1/3) ... [2023-08-26 08:56:13,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76129739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:56:13, skipping insertion in model container [2023-08-26 08:56:13,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:56:12" (2/3) ... [2023-08-26 08:56:13,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76129739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:56:13, skipping insertion in model container [2023-08-26 08:56:13,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:56:13" (3/3) ... [2023-08-26 08:56:13,545 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2023-08-26 08:56:13,561 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:56:13,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-26 08:56:13,561 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:56:13,691 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 08:56:13,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 330 transitions, 684 flow [2023-08-26 08:56:13,902 INFO L124 PetriNetUnfolderBase]: 15/327 cut-off events. [2023-08-26 08:56:13,902 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:56:13,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 327 events. 15/327 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 728 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-26 08:56:13,914 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 330 transitions, 684 flow [2023-08-26 08:56:13,926 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 311 places, 316 transitions, 650 flow [2023-08-26 08:56:13,929 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:56:13,940 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 311 places, 316 transitions, 650 flow [2023-08-26 08:56:13,942 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 311 places, 316 transitions, 650 flow [2023-08-26 08:56:13,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 311 places, 316 transitions, 650 flow [2023-08-26 08:56:14,070 INFO L124 PetriNetUnfolderBase]: 15/316 cut-off events. [2023-08-26 08:56:14,070 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:56:14,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 316 events. 15/316 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 726 event pairs, 0 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-26 08:56:14,088 INFO L119 LiptonReduction]: Number of co-enabled transitions 25272 [2023-08-26 08:56:21,493 INFO L134 LiptonReduction]: Checked pairs total: 83271 [2023-08-26 08:56:21,493 INFO L136 LiptonReduction]: Total number of compositions: 324 [2023-08-26 08:56:21,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:56:21,510 INFO L357 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@10f54f34, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:56:21,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2023-08-26 08:56:21,511 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:56:21,511 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:56:21,511 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:56:21,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:21,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:56:21,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:21,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:21,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1231, now seen corresponding path program 1 times [2023-08-26 08:56:21,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:21,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857667958] [2023-08-26 08:56:21,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:21,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:21,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:21,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857667958] [2023-08-26 08:56:21,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857667958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:21,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:21,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:56:21,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180189710] [2023-08-26 08:56:21,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:21,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:56:21,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:21,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:56:21,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:56:21,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 654 [2023-08-26 08:56:21,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 84 transitions, 186 flow. Second operand has 2 states, 2 states have (on average 315.5) internal successors, (631), 2 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:21,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:21,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 654 [2023-08-26 08:56:21,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:21,892 INFO L124 PetriNetUnfolderBase]: 1661/2692 cut-off events. [2023-08-26 08:56:21,892 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2023-08-26 08:56:21,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5090 conditions, 2692 events. 1661/2692 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 16502 event pairs, 1125 based on Foata normal form. 39/2027 useless extension candidates. Maximal degree in co-relation 4500. Up to 2265 conditions per place. [2023-08-26 08:56:21,914 INFO L140 encePairwiseOnDemand]: 638/654 looper letters, 34 selfloop transitions, 0 changer transitions 0/68 dead transitions. [2023-08-26 08:56:21,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 222 flow [2023-08-26 08:56:21,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:56:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:56:21,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 680 transitions. [2023-08-26 08:56:21,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5198776758409785 [2023-08-26 08:56:21,929 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 680 transitions. [2023-08-26 08:56:21,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 680 transitions. [2023-08-26 08:56:21,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:21,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 680 transitions. [2023-08-26 08:56:21,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 340.0) internal successors, (680), 2 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:21,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 654.0) internal successors, (1962), 3 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:21,944 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 654.0) internal successors, (1962), 3 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:21,945 INFO L175 Difference]: Start difference. First operand has 87 places, 84 transitions, 186 flow. Second operand 2 states and 680 transitions. [2023-08-26 08:56:21,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 222 flow [2023-08-26 08:56:21,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 68 transitions, 210 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 08:56:21,955 INFO L231 Difference]: Finished difference. Result has 67 places, 68 transitions, 142 flow [2023-08-26 08:56:21,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=142, PETRI_PLACES=67, PETRI_TRANSITIONS=68} [2023-08-26 08:56:21,960 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -20 predicate places. [2023-08-26 08:56:21,960 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 68 transitions, 142 flow [2023-08-26 08:56:21,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 315.5) internal successors, (631), 2 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:21,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:21,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 08:56:21,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:56:21,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:21,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:21,963 INFO L85 PathProgramCache]: Analyzing trace with hash 37963321, now seen corresponding path program 1 times [2023-08-26 08:56:21,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:21,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122193305] [2023-08-26 08:56:21,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:21,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:22,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:22,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:22,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122193305] [2023-08-26 08:56:22,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122193305] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:22,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:22,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:56:22,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792034660] [2023-08-26 08:56:22,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:22,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:22,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:22,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:22,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 654 [2023-08-26 08:56:22,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 68 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:22,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 654 [2023-08-26 08:56:22,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:22,504 INFO L124 PetriNetUnfolderBase]: 2453/4611 cut-off events. [2023-08-26 08:56:22,505 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-26 08:56:22,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8031 conditions, 4611 events. 2453/4611 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 34724 event pairs, 581 based on Foata normal form. 0/3628 useless extension candidates. Maximal degree in co-relation 8028. Up to 3326 conditions per place. [2023-08-26 08:56:22,537 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 49 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2023-08-26 08:56:22,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 270 flow [2023-08-26 08:56:22,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:22,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:22,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 971 transitions. [2023-08-26 08:56:22,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4949031600407747 [2023-08-26 08:56:22,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 971 transitions. [2023-08-26 08:56:22,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 971 transitions. [2023-08-26 08:56:22,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:22,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 971 transitions. [2023-08-26 08:56:22,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,551 INFO L175 Difference]: Start difference. First operand has 67 places, 68 transitions, 142 flow. Second operand 3 states and 971 transitions. [2023-08-26 08:56:22,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 270 flow [2023-08-26 08:56:22,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 80 transitions, 270 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:56:22,554 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 152 flow [2023-08-26 08:56:22,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2023-08-26 08:56:22,555 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2023-08-26 08:56:22,556 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 152 flow [2023-08-26 08:56:22,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:22,557 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 08:56:22,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:56:22,557 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:22,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:22,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2123045524, now seen corresponding path program 1 times [2023-08-26 08:56:22,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:22,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558275586] [2023-08-26 08:56:22,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:22,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:22,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:22,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558275586] [2023-08-26 08:56:22,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558275586] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:22,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:22,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:56:22,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103067223] [2023-08-26 08:56:22,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:22,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:22,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:22,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:22,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:22,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 654 [2023-08-26 08:56:22,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 304.3333333333333) internal successors, (913), 3 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:22,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 654 [2023-08-26 08:56:22,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:22,923 INFO L124 PetriNetUnfolderBase]: 2051/3738 cut-off events. [2023-08-26 08:56:22,923 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-26 08:56:22,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6615 conditions, 3738 events. 2051/3738 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 26544 event pairs, 330 based on Foata normal form. 0/3032 useless extension candidates. Maximal degree in co-relation 6611. Up to 2726 conditions per place. [2023-08-26 08:56:22,953 INFO L140 encePairwiseOnDemand]: 648/654 looper letters, 47 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2023-08-26 08:56:22,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 278 flow [2023-08-26 08:56:22,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 962 transitions. [2023-08-26 08:56:22,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49031600407747195 [2023-08-26 08:56:22,956 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 962 transitions. [2023-08-26 08:56:22,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 962 transitions. [2023-08-26 08:56:22,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:22,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 962 transitions. [2023-08-26 08:56:22,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,964 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 152 flow. Second operand 3 states and 962 transitions. [2023-08-26 08:56:22,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 278 flow [2023-08-26 08:56:22,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 80 transitions, 278 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:56:22,966 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 167 flow [2023-08-26 08:56:22,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2023-08-26 08:56:22,967 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2023-08-26 08:56:22,967 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 167 flow [2023-08-26 08:56:22,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.3333333333333) internal successors, (913), 3 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:22,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:22,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:56:22,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:56:22,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:22,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1389915257, now seen corresponding path program 1 times [2023-08-26 08:56:22,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:22,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867604123] [2023-08-26 08:56:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:22,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:23,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:23,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:23,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867604123] [2023-08-26 08:56:23,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867604123] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:23,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:23,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:56:23,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305872613] [2023-08-26 08:56:23,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:23,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:23,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:23,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:23,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:23,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 654 [2023-08-26 08:56:23,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:23,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 654 [2023-08-26 08:56:23,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:23,292 INFO L124 PetriNetUnfolderBase]: 1976/3149 cut-off events. [2023-08-26 08:56:23,292 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-08-26 08:56:23,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6183 conditions, 3149 events. 1976/3149 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 19377 event pairs, 949 based on Foata normal form. 0/2308 useless extension candidates. Maximal degree in co-relation 6178. Up to 2165 conditions per place. [2023-08-26 08:56:23,319 INFO L140 encePairwiseOnDemand]: 649/654 looper letters, 51 selfloop transitions, 4 changer transitions 0/86 dead transitions. [2023-08-26 08:56:23,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 86 transitions, 315 flow [2023-08-26 08:56:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:23,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 975 transitions. [2023-08-26 08:56:23,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4969418960244648 [2023-08-26 08:56:23,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 975 transitions. [2023-08-26 08:56:23,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 975 transitions. [2023-08-26 08:56:23,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:23,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 975 transitions. [2023-08-26 08:56:23,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,330 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 167 flow. Second operand 3 states and 975 transitions. [2023-08-26 08:56:23,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 86 transitions, 315 flow [2023-08-26 08:56:23,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 86 transitions, 315 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:56:23,334 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 173 flow [2023-08-26 08:56:23,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2023-08-26 08:56:23,336 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -18 predicate places. [2023-08-26 08:56:23,336 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 173 flow [2023-08-26 08:56:23,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:23,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:56:23,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:56:23,338 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:23,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:23,338 INFO L85 PathProgramCache]: Analyzing trace with hash -806300217, now seen corresponding path program 1 times [2023-08-26 08:56:23,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:23,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922735459] [2023-08-26 08:56:23,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:23,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:23,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:23,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922735459] [2023-08-26 08:56:23,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922735459] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:23,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:23,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:56:23,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191040330] [2023-08-26 08:56:23,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:23,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:23,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:23,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:23,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:23,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 654 [2023-08-26 08:56:23,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:23,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 654 [2023-08-26 08:56:23,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:23,840 INFO L124 PetriNetUnfolderBase]: 3726/6314 cut-off events. [2023-08-26 08:56:23,841 INFO L125 PetriNetUnfolderBase]: For 926/926 co-relation queries the response was YES. [2023-08-26 08:56:23,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12680 conditions, 6314 events. 3726/6314 cut-off events. For 926/926 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 43543 event pairs, 627 based on Foata normal form. 0/5028 useless extension candidates. Maximal degree in co-relation 12674. Up to 4492 conditions per place. [2023-08-26 08:56:23,882 INFO L140 encePairwiseOnDemand]: 646/654 looper letters, 59 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2023-08-26 08:56:23,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 85 transitions, 355 flow [2023-08-26 08:56:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:23,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2023-08-26 08:56:23,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4908256880733945 [2023-08-26 08:56:23,891 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2023-08-26 08:56:23,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2023-08-26 08:56:23,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:23,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2023-08-26 08:56:23,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,964 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 173 flow. Second operand 3 states and 963 transitions. [2023-08-26 08:56:23,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 85 transitions, 355 flow [2023-08-26 08:56:23,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 85 transitions, 339 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:56:23,976 INFO L231 Difference]: Finished difference. Result has 66 places, 67 transitions, 185 flow [2023-08-26 08:56:23,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=185, PETRI_PLACES=66, PETRI_TRANSITIONS=67} [2023-08-26 08:56:23,980 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -21 predicate places. [2023-08-26 08:56:23,980 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 67 transitions, 185 flow [2023-08-26 08:56:23,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:23,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:56:23,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 08:56:23,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:23,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash 137565989, now seen corresponding path program 1 times [2023-08-26 08:56:23,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:23,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808317250] [2023-08-26 08:56:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:24,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:24,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808317250] [2023-08-26 08:56:24,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808317250] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:24,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:24,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:56:24,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517771254] [2023-08-26 08:56:24,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:24,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:24,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:24,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:24,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:24,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 654 [2023-08-26 08:56:24,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 67 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:24,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:24,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 654 [2023-08-26 08:56:24,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:24,501 INFO L124 PetriNetUnfolderBase]: 4176/6550 cut-off events. [2023-08-26 08:56:24,501 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2023-08-26 08:56:24,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12953 conditions, 6550 events. 4176/6550 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 42472 event pairs, 1067 based on Foata normal form. 0/5169 useless extension candidates. Maximal degree in co-relation 12947. Up to 3414 conditions per place. [2023-08-26 08:56:24,551 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 70 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2023-08-26 08:56:24,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 98 transitions, 406 flow [2023-08-26 08:56:24,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:24,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 988 transitions. [2023-08-26 08:56:24,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5035677879714577 [2023-08-26 08:56:24,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 988 transitions. [2023-08-26 08:56:24,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 988 transitions. [2023-08-26 08:56:24,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:24,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 988 transitions. [2023-08-26 08:56:24,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:24,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:24,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:24,562 INFO L175 Difference]: Start difference. First operand has 66 places, 67 transitions, 185 flow. Second operand 3 states and 988 transitions. [2023-08-26 08:56:24,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 98 transitions, 406 flow [2023-08-26 08:56:24,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 98 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:56:24,567 INFO L231 Difference]: Finished difference. Result has 67 places, 67 transitions, 195 flow [2023-08-26 08:56:24,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=67, PETRI_TRANSITIONS=67} [2023-08-26 08:56:24,569 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -20 predicate places. [2023-08-26 08:56:24,572 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 67 transitions, 195 flow [2023-08-26 08:56:24,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:24,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:24,573 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:56:24,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 08:56:24,573 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:24,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash 774509254, now seen corresponding path program 1 times [2023-08-26 08:56:24,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:24,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314448820] [2023-08-26 08:56:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:24,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:24,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:24,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314448820] [2023-08-26 08:56:24,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314448820] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:24,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:24,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:56:24,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731590602] [2023-08-26 08:56:24,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:24,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:24,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:24,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:24,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 654 [2023-08-26 08:56:24,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 67 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:24,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:24,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 654 [2023-08-26 08:56:24,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:25,001 INFO L124 PetriNetUnfolderBase]: 3248/4986 cut-off events. [2023-08-26 08:56:25,001 INFO L125 PetriNetUnfolderBase]: For 345/352 co-relation queries the response was YES. [2023-08-26 08:56:25,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10465 conditions, 4986 events. 3248/4986 cut-off events. For 345/352 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 30289 event pairs, 1532 based on Foata normal form. 0/3711 useless extension candidates. Maximal degree in co-relation 10458. Up to 3380 conditions per place. [2023-08-26 08:56:25,032 INFO L140 encePairwiseOnDemand]: 649/654 looper letters, 54 selfloop transitions, 4 changer transitions 0/87 dead transitions. [2023-08-26 08:56:25,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 87 transitions, 363 flow [2023-08-26 08:56:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:25,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 966 transitions. [2023-08-26 08:56:25,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4923547400611621 [2023-08-26 08:56:25,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 966 transitions. [2023-08-26 08:56:25,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 966 transitions. [2023-08-26 08:56:25,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:25,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 966 transitions. [2023-08-26 08:56:25,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.0) internal successors, (966), 3 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,042 INFO L175 Difference]: Start difference. First operand has 67 places, 67 transitions, 195 flow. Second operand 3 states and 966 transitions. [2023-08-26 08:56:25,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 87 transitions, 363 flow [2023-08-26 08:56:25,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 87 transitions, 363 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:56:25,045 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 201 flow [2023-08-26 08:56:25,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2023-08-26 08:56:25,045 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2023-08-26 08:56:25,045 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 201 flow [2023-08-26 08:56:25,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:25,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:56:25,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 08:56:25,046 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:25,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:25,047 INFO L85 PathProgramCache]: Analyzing trace with hash -943046039, now seen corresponding path program 1 times [2023-08-26 08:56:25,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:25,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379196673] [2023-08-26 08:56:25,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:25,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:25,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379196673] [2023-08-26 08:56:25,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379196673] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:25,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:25,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:56:25,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962640117] [2023-08-26 08:56:25,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:25,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:25,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:25,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:25,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:25,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 654 [2023-08-26 08:56:25,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:25,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 654 [2023-08-26 08:56:25,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:25,667 INFO L124 PetriNetUnfolderBase]: 5207/8101 cut-off events. [2023-08-26 08:56:25,668 INFO L125 PetriNetUnfolderBase]: For 1753/1760 co-relation queries the response was YES. [2023-08-26 08:56:25,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18041 conditions, 8101 events. 5207/8101 cut-off events. For 1753/1760 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 53691 event pairs, 1774 based on Foata normal form. 0/6560 useless extension candidates. Maximal degree in co-relation 18033. Up to 3881 conditions per place. [2023-08-26 08:56:25,711 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 71 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2023-08-26 08:56:25,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 97 transitions, 431 flow [2023-08-26 08:56:25,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:25,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2023-08-26 08:56:25,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5040774719673802 [2023-08-26 08:56:25,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2023-08-26 08:56:25,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2023-08-26 08:56:25,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:25,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2023-08-26 08:56:25,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,720 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 201 flow. Second operand 3 states and 989 transitions. [2023-08-26 08:56:25,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 97 transitions, 431 flow [2023-08-26 08:56:25,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 97 transitions, 415 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:56:25,728 INFO L231 Difference]: Finished difference. Result has 67 places, 66 transitions, 203 flow [2023-08-26 08:56:25,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=67, PETRI_TRANSITIONS=66} [2023-08-26 08:56:25,728 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -20 predicate places. [2023-08-26 08:56:25,729 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 66 transitions, 203 flow [2023-08-26 08:56:25,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:25,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:56:25,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 08:56:25,729 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:25,730 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash 506988217, now seen corresponding path program 1 times [2023-08-26 08:56:25,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:25,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147545155] [2023-08-26 08:56:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:25,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:25,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:25,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147545155] [2023-08-26 08:56:25,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147545155] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:25,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:25,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:56:25,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543963849] [2023-08-26 08:56:25,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:25,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:25,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:25,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:25,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:25,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 654 [2023-08-26 08:56:25,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 66 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:25,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:25,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 654 [2023-08-26 08:56:25,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:26,282 INFO L124 PetriNetUnfolderBase]: 5369/8094 cut-off events. [2023-08-26 08:56:26,283 INFO L125 PetriNetUnfolderBase]: For 602/609 co-relation queries the response was YES. [2023-08-26 08:56:26,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17259 conditions, 8094 events. 5369/8094 cut-off events. For 602/609 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 50308 event pairs, 1931 based on Foata normal form. 0/6429 useless extension candidates. Maximal degree in co-relation 17251. Up to 4024 conditions per place. [2023-08-26 08:56:26,323 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 70 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2023-08-26 08:56:26,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 97 transitions, 428 flow [2023-08-26 08:56:26,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:26,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 986 transitions. [2023-08-26 08:56:26,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025484199796126 [2023-08-26 08:56:26,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 986 transitions. [2023-08-26 08:56:26,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 986 transitions. [2023-08-26 08:56:26,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:26,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 986 transitions. [2023-08-26 08:56:26,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:26,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:26,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:26,333 INFO L175 Difference]: Start difference. First operand has 67 places, 66 transitions, 203 flow. Second operand 3 states and 986 transitions. [2023-08-26 08:56:26,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 97 transitions, 428 flow [2023-08-26 08:56:26,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 97 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:56:26,335 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 213 flow [2023-08-26 08:56:26,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2023-08-26 08:56:26,336 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -19 predicate places. [2023-08-26 08:56:26,336 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 213 flow [2023-08-26 08:56:26,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:26,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:26,337 INFO L208 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] [2023-08-26 08:56:26,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 08:56:26,337 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:26,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:26,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1550678633, now seen corresponding path program 1 times [2023-08-26 08:56:26,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:26,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327331681] [2023-08-26 08:56:26,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:26,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:26,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:26,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327331681] [2023-08-26 08:56:26,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327331681] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:26,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:26,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:26,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548619237] [2023-08-26 08:56:26,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:26,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:26,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:26,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:26,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:26,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 654 [2023-08-26 08:56:26,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:26,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:26,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 654 [2023-08-26 08:56:26,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:26,938 INFO L124 PetriNetUnfolderBase]: 4694/8067 cut-off events. [2023-08-26 08:56:26,938 INFO L125 PetriNetUnfolderBase]: For 585/592 co-relation queries the response was YES. [2023-08-26 08:56:26,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17438 conditions, 8067 events. 4694/8067 cut-off events. For 585/592 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 60166 event pairs, 1367 based on Foata normal form. 1/6869 useless extension candidates. Maximal degree in co-relation 17429. Up to 4838 conditions per place. [2023-08-26 08:56:26,979 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 61 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2023-08-26 08:56:26,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 92 transitions, 403 flow [2023-08-26 08:56:26,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:26,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:26,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 986 transitions. [2023-08-26 08:56:26,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5025484199796126 [2023-08-26 08:56:26,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 986 transitions. [2023-08-26 08:56:26,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 986 transitions. [2023-08-26 08:56:26,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:26,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 986 transitions. [2023-08-26 08:56:26,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:26,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:26,988 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:26,988 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 213 flow. Second operand 3 states and 986 transitions. [2023-08-26 08:56:26,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 92 transitions, 403 flow [2023-08-26 08:56:26,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 92 transitions, 403 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:56:26,992 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 233 flow [2023-08-26 08:56:26,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2023-08-26 08:56:26,992 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -15 predicate places. [2023-08-26 08:56:26,992 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 233 flow [2023-08-26 08:56:26,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:26,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:26,993 INFO L208 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] [2023-08-26 08:56:26,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 08:56:26,993 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:26,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:26,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1510029663, now seen corresponding path program 2 times [2023-08-26 08:56:26,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:26,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562101335] [2023-08-26 08:56:26,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:26,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:27,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:27,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:27,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562101335] [2023-08-26 08:56:27,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562101335] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:27,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:27,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:27,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816563618] [2023-08-26 08:56:27,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:27,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:27,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:27,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:27,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:27,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 654 [2023-08-26 08:56:27,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:27,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:27,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 654 [2023-08-26 08:56:27,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:27,542 INFO L124 PetriNetUnfolderBase]: 4680/7699 cut-off events. [2023-08-26 08:56:27,542 INFO L125 PetriNetUnfolderBase]: For 2161/2252 co-relation queries the response was YES. [2023-08-26 08:56:27,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17667 conditions, 7699 events. 4680/7699 cut-off events. For 2161/2252 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 54863 event pairs, 2752 based on Foata normal form. 155/6826 useless extension candidates. Maximal degree in co-relation 17656. Up to 5213 conditions per place. [2023-08-26 08:56:27,575 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 62 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2023-08-26 08:56:27,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 93 transitions, 427 flow [2023-08-26 08:56:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:27,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 985 transitions. [2023-08-26 08:56:27,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020387359836901 [2023-08-26 08:56:27,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 985 transitions. [2023-08-26 08:56:27,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 985 transitions. [2023-08-26 08:56:27,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:27,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 985 transitions. [2023-08-26 08:56:27,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:27,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:27,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:27,585 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 233 flow. Second operand 3 states and 985 transitions. [2023-08-26 08:56:27,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 93 transitions, 427 flow [2023-08-26 08:56:27,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 93 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:56:27,596 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 255 flow [2023-08-26 08:56:27,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2023-08-26 08:56:27,597 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -12 predicate places. [2023-08-26 08:56:27,597 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 255 flow [2023-08-26 08:56:27,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:27,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:27,598 INFO L208 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] [2023-08-26 08:56:27,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 08:56:27,598 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:27,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:27,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1756805114, now seen corresponding path program 1 times [2023-08-26 08:56:27,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:27,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137224314] [2023-08-26 08:56:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:27,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:27,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:27,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:27,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137224314] [2023-08-26 08:56:27,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137224314] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:27,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:27,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:56:27,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881556501] [2023-08-26 08:56:27,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:27,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:27,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:27,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:27,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:27,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 654 [2023-08-26 08:56:27,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:27,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:27,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 654 [2023-08-26 08:56:27,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:28,254 INFO L124 PetriNetUnfolderBase]: 4944/8098 cut-off events. [2023-08-26 08:56:28,254 INFO L125 PetriNetUnfolderBase]: For 3173/3336 co-relation queries the response was YES. [2023-08-26 08:56:28,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19293 conditions, 8098 events. 4944/8098 cut-off events. For 3173/3336 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 58255 event pairs, 3391 based on Foata normal form. 27/7022 useless extension candidates. Maximal degree in co-relation 19281. Up to 6468 conditions per place. [2023-08-26 08:56:28,285 INFO L140 encePairwiseOnDemand]: 652/654 looper letters, 38 selfloop transitions, 0 changer transitions 23/90 dead transitions. [2023-08-26 08:56:28,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 90 transitions, 425 flow [2023-08-26 08:56:28,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:28,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:28,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 992 transitions. [2023-08-26 08:56:28,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5056065239551478 [2023-08-26 08:56:28,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 992 transitions. [2023-08-26 08:56:28,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 992 transitions. [2023-08-26 08:56:28,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:28,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 992 transitions. [2023-08-26 08:56:28,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,295 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 255 flow. Second operand 3 states and 992 transitions. [2023-08-26 08:56:28,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 90 transitions, 425 flow [2023-08-26 08:56:28,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 90 transitions, 419 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 08:56:28,301 INFO L231 Difference]: Finished difference. Result has 77 places, 67 transitions, 236 flow [2023-08-26 08:56:28,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=77, PETRI_TRANSITIONS=67} [2023-08-26 08:56:28,302 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -10 predicate places. [2023-08-26 08:56:28,302 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 67 transitions, 236 flow [2023-08-26 08:56:28,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:28,303 INFO L208 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] [2023-08-26 08:56:28,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 08:56:28,303 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:28,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash 401859307, now seen corresponding path program 1 times [2023-08-26 08:56:28,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:28,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528883137] [2023-08-26 08:56:28,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:28,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:28,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:28,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528883137] [2023-08-26 08:56:28,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528883137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:28,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:28,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:28,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539766671] [2023-08-26 08:56:28,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:28,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:28,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:28,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:28,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:28,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 654 [2023-08-26 08:56:28,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:28,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 654 [2023-08-26 08:56:28,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:28,884 INFO L124 PetriNetUnfolderBase]: 4696/7840 cut-off events. [2023-08-26 08:56:28,884 INFO L125 PetriNetUnfolderBase]: For 1512/1550 co-relation queries the response was YES. [2023-08-26 08:56:28,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18321 conditions, 7840 events. 4696/7840 cut-off events. For 1512/1550 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 57561 event pairs, 2418 based on Foata normal form. 0/6731 useless extension candidates. Maximal degree in co-relation 18308. Up to 3994 conditions per place. [2023-08-26 08:56:28,914 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 65 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2023-08-26 08:56:28,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 97 transitions, 466 flow [2023-08-26 08:56:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:28,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2023-08-26 08:56:28,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5040774719673802 [2023-08-26 08:56:28,916 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2023-08-26 08:56:28,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2023-08-26 08:56:28,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:28,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2023-08-26 08:56:28,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,921 INFO L175 Difference]: Start difference. First operand has 77 places, 67 transitions, 236 flow. Second operand 3 states and 989 transitions. [2023-08-26 08:56:28,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 97 transitions, 466 flow [2023-08-26 08:56:28,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 97 transitions, 462 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 08:56:28,925 INFO L231 Difference]: Finished difference. Result has 79 places, 70 transitions, 269 flow [2023-08-26 08:56:28,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=79, PETRI_TRANSITIONS=70} [2023-08-26 08:56:28,925 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -8 predicate places. [2023-08-26 08:56:28,926 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 70 transitions, 269 flow [2023-08-26 08:56:28,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:28,926 INFO L208 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] [2023-08-26 08:56:28,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 08:56:28,926 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:28,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:28,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1784264311, now seen corresponding path program 2 times [2023-08-26 08:56:28,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:28,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876300186] [2023-08-26 08:56:28,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:28,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:28,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:28,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876300186] [2023-08-26 08:56:28,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876300186] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:28,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:28,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116072360] [2023-08-26 08:56:28,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:28,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:28,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:28,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:28,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 654 [2023-08-26 08:56:28,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 269 flow. Second operand has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:28,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:28,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 654 [2023-08-26 08:56:28,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:29,327 INFO L124 PetriNetUnfolderBase]: 3107/5402 cut-off events. [2023-08-26 08:56:29,328 INFO L125 PetriNetUnfolderBase]: For 3311/3319 co-relation queries the response was YES. [2023-08-26 08:56:29,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13280 conditions, 5402 events. 3107/5402 cut-off events. For 3311/3319 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 38374 event pairs, 1845 based on Foata normal form. 250/5129 useless extension candidates. Maximal degree in co-relation 13266. Up to 3035 conditions per place. [2023-08-26 08:56:29,352 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 61 selfloop transitions, 3 changer transitions 0/93 dead transitions. [2023-08-26 08:56:29,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 93 transitions, 469 flow [2023-08-26 08:56:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 984 transitions. [2023-08-26 08:56:29,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5015290519877675 [2023-08-26 08:56:29,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 984 transitions. [2023-08-26 08:56:29,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 984 transitions. [2023-08-26 08:56:29,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:29,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 984 transitions. [2023-08-26 08:56:29,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:29,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:29,360 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:29,360 INFO L175 Difference]: Start difference. First operand has 79 places, 70 transitions, 269 flow. Second operand 3 states and 984 transitions. [2023-08-26 08:56:29,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 93 transitions, 469 flow [2023-08-26 08:56:29,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 93 transitions, 466 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:56:29,365 INFO L231 Difference]: Finished difference. Result has 82 places, 73 transitions, 307 flow [2023-08-26 08:56:29,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2023-08-26 08:56:29,365 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -5 predicate places. [2023-08-26 08:56:29,365 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 307 flow [2023-08-26 08:56:29,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:29,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:29,366 INFO L208 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] [2023-08-26 08:56:29,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 08:56:29,366 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:29,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:29,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1195877037, now seen corresponding path program 1 times [2023-08-26 08:56:29,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:29,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607608535] [2023-08-26 08:56:29,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:29,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:29,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:29,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607608535] [2023-08-26 08:56:29,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607608535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:29,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:29,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:29,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801011161] [2023-08-26 08:56:29,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:29,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:56:29,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:29,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:56:29,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:56:29,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 654 [2023-08-26 08:56:29,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 307 flow. Second operand has 4 states, 4 states have (on average 310.5) internal successors, (1242), 4 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:29,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:29,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 654 [2023-08-26 08:56:29,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:29,916 INFO L124 PetriNetUnfolderBase]: 3310/6018 cut-off events. [2023-08-26 08:56:29,917 INFO L125 PetriNetUnfolderBase]: For 3240/3278 co-relation queries the response was YES. [2023-08-26 08:56:29,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15086 conditions, 6018 events. 3310/6018 cut-off events. For 3240/3278 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 45577 event pairs, 1023 based on Foata normal form. 13/5502 useless extension candidates. Maximal degree in co-relation 15071. Up to 3351 conditions per place. [2023-08-26 08:56:29,939 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 66 selfloop transitions, 2 changer transitions 17/114 dead transitions. [2023-08-26 08:56:29,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 114 transitions, 614 flow [2023-08-26 08:56:29,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 08:56:29,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 08:56:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1293 transitions. [2023-08-26 08:56:29,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49426605504587157 [2023-08-26 08:56:29,943 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1293 transitions. [2023-08-26 08:56:29,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1293 transitions. [2023-08-26 08:56:29,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:29,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1293 transitions. [2023-08-26 08:56:29,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 323.25) internal successors, (1293), 4 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:29,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:29,949 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:29,949 INFO L175 Difference]: Start difference. First operand has 82 places, 73 transitions, 307 flow. Second operand 4 states and 1293 transitions. [2023-08-26 08:56:29,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 114 transitions, 614 flow [2023-08-26 08:56:29,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 114 transitions, 599 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-26 08:56:29,954 INFO L231 Difference]: Finished difference. Result has 86 places, 73 transitions, 308 flow [2023-08-26 08:56:29,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=86, PETRI_TRANSITIONS=73} [2023-08-26 08:56:29,954 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, -1 predicate places. [2023-08-26 08:56:29,954 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 73 transitions, 308 flow [2023-08-26 08:56:29,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 310.5) internal successors, (1242), 4 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:29,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:29,955 INFO L208 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] [2023-08-26 08:56:29,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 08:56:29,955 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:29,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:29,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1628289649, now seen corresponding path program 2 times [2023-08-26 08:56:29,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:29,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343382779] [2023-08-26 08:56:29,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:30,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:30,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:30,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343382779] [2023-08-26 08:56:30,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343382779] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:30,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:30,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:30,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308145475] [2023-08-26 08:56:30,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:30,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:56:30,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:30,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:56:30,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:56:30,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 654 [2023-08-26 08:56:30,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 73 transitions, 308 flow. Second operand has 4 states, 4 states have (on average 310.5) internal successors, (1242), 4 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:30,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:30,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 654 [2023-08-26 08:56:30,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:30,532 INFO L124 PetriNetUnfolderBase]: 2983/5372 cut-off events. [2023-08-26 08:56:30,532 INFO L125 PetriNetUnfolderBase]: For 3558/3628 co-relation queries the response was YES. [2023-08-26 08:56:30,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13680 conditions, 5372 events. 2983/5372 cut-off events. For 3558/3628 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 39414 event pairs, 1599 based on Foata normal form. 2/4909 useless extension candidates. Maximal degree in co-relation 13663. Up to 3136 conditions per place. [2023-08-26 08:56:30,554 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 67 selfloop transitions, 2 changer transitions 18/116 dead transitions. [2023-08-26 08:56:30,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 116 transitions, 634 flow [2023-08-26 08:56:30,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 08:56:30,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 08:56:30,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1293 transitions. [2023-08-26 08:56:30,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49426605504587157 [2023-08-26 08:56:30,558 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1293 transitions. [2023-08-26 08:56:30,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1293 transitions. [2023-08-26 08:56:30,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:30,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1293 transitions. [2023-08-26 08:56:30,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 323.25) internal successors, (1293), 4 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:30,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:30,564 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:30,564 INFO L175 Difference]: Start difference. First operand has 86 places, 73 transitions, 308 flow. Second operand 4 states and 1293 transitions. [2023-08-26 08:56:30,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 116 transitions, 634 flow [2023-08-26 08:56:30,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 116 transitions, 627 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-26 08:56:30,570 INFO L231 Difference]: Finished difference. Result has 89 places, 75 transitions, 331 flow [2023-08-26 08:56:30,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=331, PETRI_PLACES=89, PETRI_TRANSITIONS=75} [2023-08-26 08:56:30,571 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 2 predicate places. [2023-08-26 08:56:30,571 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 75 transitions, 331 flow [2023-08-26 08:56:30,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 310.5) internal successors, (1242), 4 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:30,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:30,571 INFO L208 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] [2023-08-26 08:56:30,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 08:56:30,571 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:30,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:30,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1376508836, now seen corresponding path program 1 times [2023-08-26 08:56:30,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:30,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787158928] [2023-08-26 08:56:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:30,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:30,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:30,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:30,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787158928] [2023-08-26 08:56:30,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787158928] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:30,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:30,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:30,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222519397] [2023-08-26 08:56:30,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:30,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:56:30,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:30,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:56:30,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:56:30,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 654 [2023-08-26 08:56:30,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 75 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:30,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:30,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 654 [2023-08-26 08:56:30,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:31,330 INFO L124 PetriNetUnfolderBase]: 2739/4684 cut-off events. [2023-08-26 08:56:31,330 INFO L125 PetriNetUnfolderBase]: For 3946/3994 co-relation queries the response was YES. [2023-08-26 08:56:31,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12457 conditions, 4684 events. 2739/4684 cut-off events. For 3946/3994 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 31675 event pairs, 513 based on Foata normal form. 1/4269 useless extension candidates. Maximal degree in co-relation 12439. Up to 2803 conditions per place. [2023-08-26 08:56:31,350 INFO L140 encePairwiseOnDemand]: 646/654 looper letters, 91 selfloop transitions, 9 changer transitions 11/140 dead transitions. [2023-08-26 08:56:31,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 140 transitions, 825 flow [2023-08-26 08:56:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:56:31,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:56:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1593 transitions. [2023-08-26 08:56:31,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4871559633027523 [2023-08-26 08:56:31,354 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1593 transitions. [2023-08-26 08:56:31,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1593 transitions. [2023-08-26 08:56:31,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:31,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1593 transitions. [2023-08-26 08:56:31,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:31,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 654.0) internal successors, (3924), 6 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:31,361 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 654.0) internal successors, (3924), 6 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:31,361 INFO L175 Difference]: Start difference. First operand has 89 places, 75 transitions, 331 flow. Second operand 5 states and 1593 transitions. [2023-08-26 08:56:31,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 140 transitions, 825 flow [2023-08-26 08:56:31,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 140 transitions, 804 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-08-26 08:56:31,368 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 375 flow [2023-08-26 08:56:31,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=375, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2023-08-26 08:56:31,369 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2023-08-26 08:56:31,369 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 375 flow [2023-08-26 08:56:31,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:31,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:31,369 INFO L208 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] [2023-08-26 08:56:31,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 08:56:31,369 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:31,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:31,370 INFO L85 PathProgramCache]: Analyzing trace with hash -69318334, now seen corresponding path program 2 times [2023-08-26 08:56:31,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:31,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71089320] [2023-08-26 08:56:31,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:31,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:31,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:31,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71089320] [2023-08-26 08:56:31,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71089320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:31,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:31,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:31,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334002264] [2023-08-26 08:56:31,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:31,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:56:31,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:31,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:56:31,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:56:31,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 654 [2023-08-26 08:56:31,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 375 flow. Second operand has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:31,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:31,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 654 [2023-08-26 08:56:31,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:32,093 INFO L124 PetriNetUnfolderBase]: 2739/4683 cut-off events. [2023-08-26 08:56:32,093 INFO L125 PetriNetUnfolderBase]: For 4098/4416 co-relation queries the response was YES. [2023-08-26 08:56:32,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13606 conditions, 4683 events. 2739/4683 cut-off events. For 4098/4416 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 31596 event pairs, 495 based on Foata normal form. 107/4500 useless extension candidates. Maximal degree in co-relation 13587. Up to 2844 conditions per place. [2023-08-26 08:56:32,112 INFO L140 encePairwiseOnDemand]: 646/654 looper letters, 68 selfloop transitions, 10 changer transitions 36/143 dead transitions. [2023-08-26 08:56:32,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 143 transitions, 877 flow [2023-08-26 08:56:32,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:56:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:56:32,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1591 transitions. [2023-08-26 08:56:32,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4865443425076453 [2023-08-26 08:56:32,116 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1591 transitions. [2023-08-26 08:56:32,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1591 transitions. [2023-08-26 08:56:32,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:32,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1591 transitions. [2023-08-26 08:56:32,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 318.2) internal successors, (1591), 5 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:32,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 654.0) internal successors, (3924), 6 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:32,123 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 654.0) internal successors, (3924), 6 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:32,123 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 375 flow. Second operand 5 states and 1591 transitions. [2023-08-26 08:56:32,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 143 transitions, 877 flow [2023-08-26 08:56:32,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 143 transitions, 877 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:56:32,130 INFO L231 Difference]: Finished difference. Result has 98 places, 75 transitions, 354 flow [2023-08-26 08:56:32,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=98, PETRI_TRANSITIONS=75} [2023-08-26 08:56:32,130 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 11 predicate places. [2023-08-26 08:56:32,130 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 75 transitions, 354 flow [2023-08-26 08:56:32,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 306.5) internal successors, (1226), 4 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:32,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:32,131 INFO L208 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] [2023-08-26 08:56:32,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 08:56:32,131 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:32,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash -535871653, now seen corresponding path program 1 times [2023-08-26 08:56:32,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:32,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40836618] [2023-08-26 08:56:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:32,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:32,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:32,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40836618] [2023-08-26 08:56:32,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40836618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:32,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:32,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:32,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754040625] [2023-08-26 08:56:32,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:32,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:56:32,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:32,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:56:32,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:56:32,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 654 [2023-08-26 08:56:32,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 75 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:32,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:32,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 654 [2023-08-26 08:56:32,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:32,790 INFO L124 PetriNetUnfolderBase]: 2281/4046 cut-off events. [2023-08-26 08:56:32,790 INFO L125 PetriNetUnfolderBase]: For 4173/4361 co-relation queries the response was YES. [2023-08-26 08:56:32,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11766 conditions, 4046 events. 2281/4046 cut-off events. For 4173/4361 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 28158 event pairs, 1263 based on Foata normal form. 39/3805 useless extension candidates. Maximal degree in co-relation 11744. Up to 2601 conditions per place. [2023-08-26 08:56:32,809 INFO L140 encePairwiseOnDemand]: 651/654 looper letters, 70 selfloop transitions, 3 changer transitions 9/111 dead transitions. [2023-08-26 08:56:32,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 111 transitions, 653 flow [2023-08-26 08:56:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 08:56:32,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 08:56:32,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1301 transitions. [2023-08-26 08:56:32,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49732415902140675 [2023-08-26 08:56:32,812 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1301 transitions. [2023-08-26 08:56:32,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1301 transitions. [2023-08-26 08:56:32,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:32,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1301 transitions. [2023-08-26 08:56:32,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 325.25) internal successors, (1301), 4 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:32,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:32,818 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:32,818 INFO L175 Difference]: Start difference. First operand has 98 places, 75 transitions, 354 flow. Second operand 4 states and 1301 transitions. [2023-08-26 08:56:32,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 111 transitions, 653 flow [2023-08-26 08:56:32,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 111 transitions, 626 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-08-26 08:56:32,825 INFO L231 Difference]: Finished difference. Result has 97 places, 76 transitions, 354 flow [2023-08-26 08:56:32,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=354, PETRI_PLACES=97, PETRI_TRANSITIONS=76} [2023-08-26 08:56:32,826 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 10 predicate places. [2023-08-26 08:56:32,826 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 76 transitions, 354 flow [2023-08-26 08:56:32,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:32,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:32,827 INFO L208 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] [2023-08-26 08:56:32,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 08:56:32,827 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:32,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:32,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1727305687, now seen corresponding path program 2 times [2023-08-26 08:56:32,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:32,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712205628] [2023-08-26 08:56:32,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:32,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:33,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:33,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712205628] [2023-08-26 08:56:33,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712205628] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:33,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:33,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:33,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236090919] [2023-08-26 08:56:33,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:33,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:56:33,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:33,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:56:33,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:56:33,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 654 [2023-08-26 08:56:33,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 76 transitions, 354 flow. Second operand has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:33,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:33,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 654 [2023-08-26 08:56:33,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:33,654 INFO L124 PetriNetUnfolderBase]: 2313/4169 cut-off events. [2023-08-26 08:56:33,654 INFO L125 PetriNetUnfolderBase]: For 3346/3409 co-relation queries the response was YES. [2023-08-26 08:56:33,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12190 conditions, 4169 events. 2313/4169 cut-off events. For 3346/3409 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 29208 event pairs, 1333 based on Foata normal form. 9/3825 useless extension candidates. Maximal degree in co-relation 12169. Up to 2775 conditions per place. [2023-08-26 08:56:33,677 INFO L140 encePairwiseOnDemand]: 651/654 looper letters, 68 selfloop transitions, 4 changer transitions 9/110 dead transitions. [2023-08-26 08:56:33,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 110 transitions, 639 flow [2023-08-26 08:56:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 08:56:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 08:56:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1299 transitions. [2023-08-26 08:56:33,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49655963302752293 [2023-08-26 08:56:33,680 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1299 transitions. [2023-08-26 08:56:33,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1299 transitions. [2023-08-26 08:56:33,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:33,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1299 transitions. [2023-08-26 08:56:33,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.75) internal successors, (1299), 4 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:33,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:33,687 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 654.0) internal successors, (3270), 5 states have internal predecessors, (3270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:33,687 INFO L175 Difference]: Start difference. First operand has 97 places, 76 transitions, 354 flow. Second operand 4 states and 1299 transitions. [2023-08-26 08:56:33,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 110 transitions, 639 flow [2023-08-26 08:56:33,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 110 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:56:33,693 INFO L231 Difference]: Finished difference. Result has 101 places, 77 transitions, 375 flow [2023-08-26 08:56:33,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=375, PETRI_PLACES=101, PETRI_TRANSITIONS=77} [2023-08-26 08:56:33,694 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 14 predicate places. [2023-08-26 08:56:33,694 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 77 transitions, 375 flow [2023-08-26 08:56:33,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 314.75) internal successors, (1259), 4 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:33,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:33,695 INFO L208 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] [2023-08-26 08:56:33,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 08:56:33,695 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:33,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:33,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1937754526, now seen corresponding path program 1 times [2023-08-26 08:56:33,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:33,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434085658] [2023-08-26 08:56:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:33,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:33,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:33,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:33,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434085658] [2023-08-26 08:56:33,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434085658] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:33,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:33,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:33,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559801154] [2023-08-26 08:56:33,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:33,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:33,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:33,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:33,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:33,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 654 [2023-08-26 08:56:33,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 77 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:33,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:33,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 654 [2023-08-26 08:56:33,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:34,157 INFO L124 PetriNetUnfolderBase]: 2254/4427 cut-off events. [2023-08-26 08:56:34,157 INFO L125 PetriNetUnfolderBase]: For 4073/4127 co-relation queries the response was YES. [2023-08-26 08:56:34,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12689 conditions, 4427 events. 2254/4427 cut-off events. For 4073/4127 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 33123 event pairs, 778 based on Foata normal form. 96/4265 useless extension candidates. Maximal degree in co-relation 12666. Up to 2123 conditions per place. [2023-08-26 08:56:34,178 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 74 selfloop transitions, 3 changer transitions 1/107 dead transitions. [2023-08-26 08:56:34,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 107 transitions, 669 flow [2023-08-26 08:56:34,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:34,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:34,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 976 transitions. [2023-08-26 08:56:34,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49745158002038736 [2023-08-26 08:56:34,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 976 transitions. [2023-08-26 08:56:34,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 976 transitions. [2023-08-26 08:56:34,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:34,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 976 transitions. [2023-08-26 08:56:34,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:34,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:34,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:34,186 INFO L175 Difference]: Start difference. First operand has 101 places, 77 transitions, 375 flow. Second operand 3 states and 976 transitions. [2023-08-26 08:56:34,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 107 transitions, 669 flow [2023-08-26 08:56:34,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 107 transitions, 666 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:56:34,194 INFO L231 Difference]: Finished difference. Result has 104 places, 80 transitions, 409 flow [2023-08-26 08:56:34,194 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=104, PETRI_TRANSITIONS=80} [2023-08-26 08:56:34,194 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 17 predicate places. [2023-08-26 08:56:34,194 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 80 transitions, 409 flow [2023-08-26 08:56:34,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:34,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:34,195 INFO L208 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] [2023-08-26 08:56:34,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-26 08:56:34,195 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:34,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:34,195 INFO L85 PathProgramCache]: Analyzing trace with hash -609644100, now seen corresponding path program 2 times [2023-08-26 08:56:34,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:34,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156376569] [2023-08-26 08:56:34,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:34,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:34,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:34,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:34,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156376569] [2023-08-26 08:56:34,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156376569] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:34,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:34,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:34,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097824896] [2023-08-26 08:56:34,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:34,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:34,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:34,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:34,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:34,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 654 [2023-08-26 08:56:34,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 80 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:34,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:34,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 654 [2023-08-26 08:56:34,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:34,539 INFO L124 PetriNetUnfolderBase]: 1926/3491 cut-off events. [2023-08-26 08:56:34,539 INFO L125 PetriNetUnfolderBase]: For 4167/4305 co-relation queries the response was YES. [2023-08-26 08:56:34,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11039 conditions, 3491 events. 1926/3491 cut-off events. For 4167/4305 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 24046 event pairs, 1027 based on Foata normal form. 96/3273 useless extension candidates. Maximal degree in co-relation 11015. Up to 2101 conditions per place. [2023-08-26 08:56:34,552 INFO L140 encePairwiseOnDemand]: 650/654 looper letters, 66 selfloop transitions, 4 changer transitions 6/105 dead transitions. [2023-08-26 08:56:34,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 105 transitions, 675 flow [2023-08-26 08:56:34,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:34,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 976 transitions. [2023-08-26 08:56:34,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49745158002038736 [2023-08-26 08:56:34,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 976 transitions. [2023-08-26 08:56:34,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 976 transitions. [2023-08-26 08:56:34,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:34,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 976 transitions. [2023-08-26 08:56:34,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:34,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:34,558 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 654.0) internal successors, (2616), 4 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:34,558 INFO L175 Difference]: Start difference. First operand has 104 places, 80 transitions, 409 flow. Second operand 3 states and 976 transitions. [2023-08-26 08:56:34,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 105 transitions, 675 flow [2023-08-26 08:56:34,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 105 transitions, 668 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 08:56:34,568 INFO L231 Difference]: Finished difference. Result has 106 places, 80 transitions, 420 flow [2023-08-26 08:56:34,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=106, PETRI_TRANSITIONS=80} [2023-08-26 08:56:34,568 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 19 predicate places. [2023-08-26 08:56:34,568 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 80 transitions, 420 flow [2023-08-26 08:56:34,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:34,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:34,569 INFO L208 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] [2023-08-26 08:56:34,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-26 08:56:34,569 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:34,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:34,569 INFO L85 PathProgramCache]: Analyzing trace with hash -898530469, now seen corresponding path program 1 times [2023-08-26 08:56:34,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:34,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907609966] [2023-08-26 08:56:34,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:34,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:35,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:35,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:35,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907609966] [2023-08-26 08:56:35,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907609966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:35,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:35,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:56:35,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497539643] [2023-08-26 08:56:35,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:35,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:56:35,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:35,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:56:35,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:56:35,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-26 08:56:35,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 80 transitions, 420 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:35,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:35,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-26 08:56:35,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:35,796 INFO L124 PetriNetUnfolderBase]: 2040/3596 cut-off events. [2023-08-26 08:56:35,796 INFO L125 PetriNetUnfolderBase]: For 4919/5153 co-relation queries the response was YES. [2023-08-26 08:56:35,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11521 conditions, 3596 events. 2040/3596 cut-off events. For 4919/5153 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 23367 event pairs, 303 based on Foata normal form. 64/3370 useless extension candidates. Maximal degree in co-relation 11496. Up to 1667 conditions per place. [2023-08-26 08:56:35,820 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 88 selfloop transitions, 10 changer transitions 18/145 dead transitions. [2023-08-26 08:56:35,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 145 transitions, 945 flow [2023-08-26 08:56:35,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:56:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:56:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1871 transitions. [2023-08-26 08:56:35,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.476809378185525 [2023-08-26 08:56:35,824 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1871 transitions. [2023-08-26 08:56:35,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1871 transitions. [2023-08-26 08:56:35,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:35,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1871 transitions. [2023-08-26 08:56:35,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.8333333333333) internal successors, (1871), 6 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:35,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:35,831 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:35,832 INFO L175 Difference]: Start difference. First operand has 106 places, 80 transitions, 420 flow. Second operand 6 states and 1871 transitions. [2023-08-26 08:56:35,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 145 transitions, 945 flow [2023-08-26 08:56:35,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 145 transitions, 921 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-26 08:56:35,841 INFO L231 Difference]: Finished difference. Result has 112 places, 84 transitions, 469 flow [2023-08-26 08:56:35,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=469, PETRI_PLACES=112, PETRI_TRANSITIONS=84} [2023-08-26 08:56:35,842 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 25 predicate places. [2023-08-26 08:56:35,842 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 84 transitions, 469 flow [2023-08-26 08:56:35,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:35,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:35,843 INFO L208 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] [2023-08-26 08:56:35,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-26 08:56:35,843 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:35,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:35,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1865843651, now seen corresponding path program 2 times [2023-08-26 08:56:35,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:35,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105750758] [2023-08-26 08:56:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:35,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:36,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:36,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:36,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105750758] [2023-08-26 08:56:36,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105750758] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:36,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:36,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:56:36,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585248734] [2023-08-26 08:56:36,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:36,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:56:36,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:36,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:56:36,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:56:36,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-26 08:56:36,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 84 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:36,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:36,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-26 08:56:36,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:37,145 INFO L124 PetriNetUnfolderBase]: 1988/3562 cut-off events. [2023-08-26 08:56:37,145 INFO L125 PetriNetUnfolderBase]: For 4746/5100 co-relation queries the response was YES. [2023-08-26 08:56:37,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11911 conditions, 3562 events. 1988/3562 cut-off events. For 4746/5100 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 23095 event pairs, 425 based on Foata normal form. 122/3400 useless extension candidates. Maximal degree in co-relation 11884. Up to 1955 conditions per place. [2023-08-26 08:56:37,173 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 95 selfloop transitions, 11 changer transitions 15/150 dead transitions. [2023-08-26 08:56:37,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 150 transitions, 998 flow [2023-08-26 08:56:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:56:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:56:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1875 transitions. [2023-08-26 08:56:37,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47782874617737003 [2023-08-26 08:56:37,177 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1875 transitions. [2023-08-26 08:56:37,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1875 transitions. [2023-08-26 08:56:37,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:37,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1875 transitions. [2023-08-26 08:56:37,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.5) internal successors, (1875), 6 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:37,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:37,185 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:37,186 INFO L175 Difference]: Start difference. First operand has 112 places, 84 transitions, 469 flow. Second operand 6 states and 1875 transitions. [2023-08-26 08:56:37,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 150 transitions, 998 flow [2023-08-26 08:56:37,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 150 transitions, 989 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-26 08:56:37,196 INFO L231 Difference]: Finished difference. Result has 117 places, 85 transitions, 501 flow [2023-08-26 08:56:37,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=117, PETRI_TRANSITIONS=85} [2023-08-26 08:56:37,196 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 30 predicate places. [2023-08-26 08:56:37,196 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 85 transitions, 501 flow [2023-08-26 08:56:37,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:37,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:37,197 INFO L208 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] [2023-08-26 08:56:37,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-26 08:56:37,197 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:37,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:37,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1723210363, now seen corresponding path program 3 times [2023-08-26 08:56:37,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:37,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895938720] [2023-08-26 08:56:37,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:37,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:38,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:38,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:38,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895938720] [2023-08-26 08:56:38,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895938720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:38,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:38,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:56:38,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189880733] [2023-08-26 08:56:38,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:38,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:56:38,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:38,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:56:38,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:56:38,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-26 08:56:38,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 85 transitions, 501 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:38,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:38,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-26 08:56:38,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:38,678 INFO L124 PetriNetUnfolderBase]: 2046/3680 cut-off events. [2023-08-26 08:56:38,678 INFO L125 PetriNetUnfolderBase]: For 6559/7011 co-relation queries the response was YES. [2023-08-26 08:56:38,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12656 conditions, 3680 events. 2046/3680 cut-off events. For 6559/7011 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 24043 event pairs, 303 based on Foata normal form. 140/3534 useless extension candidates. Maximal degree in co-relation 12627. Up to 1755 conditions per place. [2023-08-26 08:56:38,705 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 90 selfloop transitions, 11 changer transitions 12/142 dead transitions. [2023-08-26 08:56:38,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 142 transitions, 981 flow [2023-08-26 08:56:38,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:56:38,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:56:38,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1869 transitions. [2023-08-26 08:56:38,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47629969418960244 [2023-08-26 08:56:38,709 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1869 transitions. [2023-08-26 08:56:38,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1869 transitions. [2023-08-26 08:56:38,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:38,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1869 transitions. [2023-08-26 08:56:38,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:38,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:38,717 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:38,717 INFO L175 Difference]: Start difference. First operand has 117 places, 85 transitions, 501 flow. Second operand 6 states and 1869 transitions. [2023-08-26 08:56:38,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 142 transitions, 981 flow [2023-08-26 08:56:38,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 142 transitions, 965 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-26 08:56:38,726 INFO L231 Difference]: Finished difference. Result has 122 places, 86 transitions, 529 flow [2023-08-26 08:56:38,727 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=529, PETRI_PLACES=122, PETRI_TRANSITIONS=86} [2023-08-26 08:56:38,727 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 35 predicate places. [2023-08-26 08:56:38,727 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 86 transitions, 529 flow [2023-08-26 08:56:38,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:38,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:38,728 INFO L208 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] [2023-08-26 08:56:38,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-26 08:56:38,728 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:38,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:38,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1998868127, now seen corresponding path program 4 times [2023-08-26 08:56:38,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:38,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832793701] [2023-08-26 08:56:38,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:38,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:39,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:39,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:39,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832793701] [2023-08-26 08:56:39,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832793701] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:39,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:39,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:56:39,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862960621] [2023-08-26 08:56:39,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:39,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:56:39,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:39,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:56:39,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:56:39,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-26 08:56:39,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 86 transitions, 529 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:39,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:39,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-26 08:56:39,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:40,114 INFO L124 PetriNetUnfolderBase]: 2008/3612 cut-off events. [2023-08-26 08:56:40,115 INFO L125 PetriNetUnfolderBase]: For 7583/8045 co-relation queries the response was YES. [2023-08-26 08:56:40,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12902 conditions, 3612 events. 2008/3612 cut-off events. For 7583/8045 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 23684 event pairs, 407 based on Foata normal form. 118/3444 useless extension candidates. Maximal degree in co-relation 12870. Up to 1975 conditions per place. [2023-08-26 08:56:40,134 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 95 selfloop transitions, 14 changer transitions 11/149 dead transitions. [2023-08-26 08:56:40,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 149 transitions, 1056 flow [2023-08-26 08:56:40,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:56:40,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:56:40,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1873 transitions. [2023-08-26 08:56:40,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4773190621814475 [2023-08-26 08:56:40,140 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1873 transitions. [2023-08-26 08:56:40,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1873 transitions. [2023-08-26 08:56:40,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:40,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1873 transitions. [2023-08-26 08:56:40,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.1666666666667) internal successors, (1873), 6 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:40,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:40,149 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:40,149 INFO L175 Difference]: Start difference. First operand has 122 places, 86 transitions, 529 flow. Second operand 6 states and 1873 transitions. [2023-08-26 08:56:40,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 149 transitions, 1056 flow [2023-08-26 08:56:40,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 149 transitions, 1034 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-26 08:56:40,168 INFO L231 Difference]: Finished difference. Result has 126 places, 87 transitions, 563 flow [2023-08-26 08:56:40,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=563, PETRI_PLACES=126, PETRI_TRANSITIONS=87} [2023-08-26 08:56:40,169 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 39 predicate places. [2023-08-26 08:56:40,169 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 87 transitions, 563 flow [2023-08-26 08:56:40,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:40,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:40,169 INFO L208 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] [2023-08-26 08:56:40,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-26 08:56:40,169 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:40,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:40,170 INFO L85 PathProgramCache]: Analyzing trace with hash -8221319, now seen corresponding path program 5 times [2023-08-26 08:56:40,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:40,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788220485] [2023-08-26 08:56:40,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:40,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:41,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:41,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788220485] [2023-08-26 08:56:41,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788220485] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:41,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:41,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:56:41,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89913304] [2023-08-26 08:56:41,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:41,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:56:41,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:41,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:56:41,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:56:41,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-26 08:56:41,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 87 transitions, 563 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:41,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:41,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-26 08:56:41,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:41,661 INFO L124 PetriNetUnfolderBase]: 1974/3548 cut-off events. [2023-08-26 08:56:41,661 INFO L125 PetriNetUnfolderBase]: For 8908/9328 co-relation queries the response was YES. [2023-08-26 08:56:41,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13024 conditions, 3548 events. 1974/3548 cut-off events. For 8908/9328 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 23481 event pairs, 439 based on Foata normal form. 138/3404 useless extension candidates. Maximal degree in co-relation 12990. Up to 2069 conditions per place. [2023-08-26 08:56:41,688 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 83 selfloop transitions, 11 changer transitions 27/150 dead transitions. [2023-08-26 08:56:41,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 150 transitions, 1077 flow [2023-08-26 08:56:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:56:41,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:56:41,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1874 transitions. [2023-08-26 08:56:41,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47757390417940876 [2023-08-26 08:56:41,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1874 transitions. [2023-08-26 08:56:41,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1874 transitions. [2023-08-26 08:56:41,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:41,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1874 transitions. [2023-08-26 08:56:41,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.3333333333333) internal successors, (1874), 6 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:41,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:41,699 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:41,699 INFO L175 Difference]: Start difference. First operand has 126 places, 87 transitions, 563 flow. Second operand 6 states and 1874 transitions. [2023-08-26 08:56:41,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 150 transitions, 1077 flow [2023-08-26 08:56:41,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 150 transitions, 1063 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-26 08:56:41,726 INFO L231 Difference]: Finished difference. Result has 130 places, 86 transitions, 566 flow [2023-08-26 08:56:41,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=130, PETRI_TRANSITIONS=86} [2023-08-26 08:56:41,726 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 43 predicate places. [2023-08-26 08:56:41,726 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 86 transitions, 566 flow [2023-08-26 08:56:41,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:41,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:41,727 INFO L208 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] [2023-08-26 08:56:41,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-26 08:56:41,727 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2023-08-26 08:56:41,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:41,727 INFO L85 PathProgramCache]: Analyzing trace with hash 50457693, now seen corresponding path program 6 times [2023-08-26 08:56:41,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:41,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026078178] [2023-08-26 08:56:41,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:41,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:56:42,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:42,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026078178] [2023-08-26 08:56:42,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026078178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:42,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:42,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:56:42,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925655994] [2023-08-26 08:56:42,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:42,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:56:42,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:42,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:56:42,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:56:42,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 654 [2023-08-26 08:56:42,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 86 transitions, 566 flow. Second operand has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:42,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:42,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 654 [2023-08-26 08:56:42,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:42,854 INFO L124 PetriNetUnfolderBase]: 1840/3320 cut-off events. [2023-08-26 08:56:42,854 INFO L125 PetriNetUnfolderBase]: For 9237/9599 co-relation queries the response was YES. [2023-08-26 08:56:42,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12699 conditions, 3320 events. 1840/3320 cut-off events. For 9237/9599 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 21913 event pairs, 373 based on Foata normal form. 116/3154 useless extension candidates. Maximal degree in co-relation 12663. Up to 1817 conditions per place. [2023-08-26 08:56:42,874 INFO L140 encePairwiseOnDemand]: 645/654 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2023-08-26 08:56:42,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 138 transitions, 1021 flow [2023-08-26 08:56:42,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:56:42,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:56:42,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1864 transitions. [2023-08-26 08:56:42,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4750254841997961 [2023-08-26 08:56:42,877 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1864 transitions. [2023-08-26 08:56:42,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1864 transitions. [2023-08-26 08:56:42,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:42,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1864 transitions. [2023-08-26 08:56:42,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 310.6666666666667) internal successors, (1864), 6 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:42,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:42,883 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 654.0) internal successors, (4578), 7 states have internal predecessors, (4578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:42,883 INFO L175 Difference]: Start difference. First operand has 130 places, 86 transitions, 566 flow. Second operand 6 states and 1864 transitions. [2023-08-26 08:56:42,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 138 transitions, 1021 flow [2023-08-26 08:56:42,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 138 transitions, 990 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-26 08:56:42,905 INFO L231 Difference]: Finished difference. Result has 126 places, 0 transitions, 0 flow [2023-08-26 08:56:42,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=654, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=126, PETRI_TRANSITIONS=0} [2023-08-26 08:56:42,908 INFO L281 CegarLoopForPetriNet]: 87 programPoint places, 39 predicate places. [2023-08-26 08:56:42,908 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 0 transitions, 0 flow [2023-08-26 08:56:42,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 302.0) internal successors, (1510), 5 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:42,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (53 of 54 remaining) [2023-08-26 08:56:42,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2023-08-26 08:56:42,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2023-08-26 08:56:42,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2023-08-26 08:56:42,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2023-08-26 08:56:42,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2023-08-26 08:56:42,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2023-08-26 08:56:42,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2023-08-26 08:56:42,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2023-08-26 08:56:42,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2023-08-26 08:56:42,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2023-08-26 08:56:42,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2023-08-26 08:56:42,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2023-08-26 08:56:42,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2023-08-26 08:56:42,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2023-08-26 08:56:42,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2023-08-26 08:56:42,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2023-08-26 08:56:42,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2023-08-26 08:56:42,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2023-08-26 08:56:42,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2023-08-26 08:56:42,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONASSERT (21 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2023-08-26 08:56:42,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2023-08-26 08:56:42,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2023-08-26 08:56:42,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-26 08:56:42,919 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:56:42,924 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 08:56:42,924 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 08:56:42,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:56:42 BasicIcfg [2023-08-26 08:56:42,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 08:56:42,927 INFO L158 Benchmark]: Toolchain (without parser) took 30344.72ms. Allocated memory was 413.1MB in the beginning and 1.4GB in the end (delta: 945.8MB). Free memory was 388.9MB in the beginning and 867.0MB in the end (delta: -478.1MB). Peak memory consumption was 469.5MB. Max. memory is 16.0GB. [2023-08-26 08:56:42,927 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 413.1MB. Free memory was 390.6MB in the beginning and 390.4MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 08:56:42,927 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.36ms. Allocated memory is still 413.1MB. Free memory was 388.9MB in the beginning and 377.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 08:56:42,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.42ms. Allocated memory is still 413.1MB. Free memory was 377.3MB in the beginning and 374.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:56:42,928 INFO L158 Benchmark]: Boogie Preprocessor took 29.65ms. Allocated memory is still 413.1MB. Free memory was 374.5MB in the beginning and 372.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:56:42,928 INFO L158 Benchmark]: RCFGBuilder took 653.14ms. Allocated memory is still 413.1MB. Free memory was 372.4MB in the beginning and 348.0MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-26 08:56:42,928 INFO L158 Benchmark]: TraceAbstraction took 29386.53ms. Allocated memory was 413.1MB in the beginning and 1.4GB in the end (delta: 945.8MB). Free memory was 347.2MB in the beginning and 867.0MB in the end (delta: -519.8MB). Peak memory consumption was 427.6MB. Max. memory is 16.0GB. [2023-08-26 08:56:42,932 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 413.1MB. Free memory was 390.6MB in the beginning and 390.4MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 215.36ms. Allocated memory is still 413.1MB. Free memory was 388.9MB in the beginning and 377.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 53.42ms. Allocated memory is still 413.1MB. Free memory was 377.3MB in the beginning and 374.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.65ms. Allocated memory is still 413.1MB. Free memory was 374.5MB in the beginning and 372.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 653.14ms. Allocated memory is still 413.1MB. Free memory was 372.4MB in the beginning and 348.0MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 29386.53ms. Allocated memory was 413.1MB in the beginning and 1.4GB in the end (delta: 945.8MB). Free memory was 347.2MB in the beginning and 867.0MB in the end (delta: -519.8MB). Peak memory consumption was 427.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6s, 311 PlacesBefore, 87 PlacesAfterwards, 316 TransitionsBefore, 84 TransitionsAfterwards, 25272 CoEnabledTransitionPairs, 10 FixpointIterations, 128 TrivialSequentialCompositions, 141 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 36 ConcurrentYvCompositions, 8 ChoiceCompositions, 324 TotalNumberOfCompositions, 83271 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 44895, independent: 43864, independent conditional: 0, independent unconditional: 43864, dependent: 1031, dependent conditional: 0, dependent unconditional: 1031, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 14780, independent: 14696, independent conditional: 0, independent unconditional: 14696, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44895, independent: 29168, independent conditional: 0, independent unconditional: 29168, dependent: 947, dependent conditional: 0, dependent unconditional: 947, unknown: 14780, unknown conditional: 0, unknown unconditional: 14780] , Statistics on independence cache: Total cache size (in pairs): 1082, Positive cache size: 1034, Positive conditional cache size: 0, Positive unconditional cache size: 1034, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 472 locations, 54 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: 29.2s, OverallIterations: 28, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 833 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 833 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3248 IncrementalHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 24 mSDtfsCounter, 3248 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=566occurred in iteration=27, InterpolantAutomatonStates: 109, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 693 NumberOfCodeBlocks, 693 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 665 ConstructedInterpolants, 0 QuantifiedInterpolants, 3292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 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 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 08:56:42,950 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...