/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 -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/popl20-mult-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 06:50:10,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 06:50:10,905 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 [2023-08-25 06:50:10,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 06:50:10,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 06:50:10,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 06:50:10,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 06:50:10,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 06:50:10,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 06:50:10,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 06:50:10,947 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 06:50:10,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 06:50:10,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 06:50:10,949 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 06:50:10,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 06:50:10,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 06:50:10,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 06:50:10,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 06:50:10,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 06:50:10,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 06:50:10,950 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 06:50:10,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 06:50:10,951 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 06:50:10,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 06:50:10,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 06:50:10,952 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 06:50:10,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 06:50:10,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 06:50:10,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 06:50:10,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 06:50:10,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 06:50:10,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 06:50:10,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 06:50:10,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 06:50:10,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 06:50:10,955 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 06:50:11,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 06:50:11,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 06:50:11,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 06:50:11,268 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 06:50:11,268 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 06:50:11,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2023-08-25 06:50:12,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 06:50:12,627 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 06:50:12,628 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2023-08-25 06:50:12,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8b69728/7d616f66c5d242ca9565809c0e9b2add/FLAGc0ddc8030 [2023-08-25 06:50:12,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8b69728/7d616f66c5d242ca9565809c0e9b2add [2023-08-25 06:50:12,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 06:50:12,658 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 06:50:12,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 06:50:12,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 06:50:12,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 06:50:12,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284e684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12, skipping insertion in model container [2023-08-25 06:50:12,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,681 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 06:50:12,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 06:50:12,821 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 06:50:12,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 06:50:12,852 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 06:50:12,853 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 06:50:12,859 INFO L206 MainTranslator]: Completed translation [2023-08-25 06:50:12,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12 WrapperNode [2023-08-25 06:50:12,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 06:50:12,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 06:50:12,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 06:50:12,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 06:50:12,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,893 INFO L138 Inliner]: procedures = 22, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2023-08-25 06:50:12,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 06:50:12,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 06:50:12,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 06:50:12,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 06:50:12,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 06:50:12,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 06:50:12,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 06:50:12,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 06:50:12,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (1/1) ... [2023-08-25 06:50:12,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 06:50:12,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:50:12,962 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) [2023-08-25 06:50:12,971 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 [2023-08-25 06:50:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 06:50:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 06:50:12,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 06:50:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 06:50:13,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 06:50:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 06:50:13,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 06:50:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 06:50:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 06:50:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 06:50:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 06:50:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 06:50:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 06:50:13,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 06:50:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 06:50:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 06:50:13,003 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 06:50:13,123 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 06:50:13,126 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 06:50:13,493 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 06:50:13,618 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 06:50:13,618 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 06:50:13,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:50:13 BoogieIcfgContainer [2023-08-25 06:50:13,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 06:50:13,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 06:50:13,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 06:50:13,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 06:50:13,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 06:50:12" (1/3) ... [2023-08-25 06:50:13,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae03be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:50:13, skipping insertion in model container [2023-08-25 06:50:13,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:50:12" (2/3) ... [2023-08-25 06:50:13,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae03be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:50:13, skipping insertion in model container [2023-08-25 06:50:13,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:50:13" (3/3) ... [2023-08-25 06:50:13,628 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-equiv.wvr.c [2023-08-25 06:50:13,645 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 06:50:13,645 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-25 06:50:13,645 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 06:50:13,704 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 06:50:13,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 162 transitions, 348 flow [2023-08-25 06:50:13,836 INFO L124 PetriNetUnfolderBase]: 7/159 cut-off events. [2023-08-25 06:50:13,836 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 06:50:13,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 159 events. 7/159 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 183 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-08-25 06:50:13,842 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 162 transitions, 348 flow [2023-08-25 06:50:13,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 148 transitions, 314 flow [2023-08-25 06:50:13,855 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 06:50:13,867 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 148 transitions, 314 flow [2023-08-25 06:50:13,871 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 148 transitions, 314 flow [2023-08-25 06:50:13,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 148 transitions, 314 flow [2023-08-25 06:50:13,920 INFO L124 PetriNetUnfolderBase]: 7/148 cut-off events. [2023-08-25 06:50:13,920 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 06:50:13,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 148 events. 7/148 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 177 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-08-25 06:50:13,925 INFO L119 LiptonReduction]: Number of co-enabled transitions 3712 [2023-08-25 06:50:17,621 INFO L134 LiptonReduction]: Checked pairs total: 5936 [2023-08-25 06:50:17,622 INFO L136 LiptonReduction]: Total number of compositions: 153 [2023-08-25 06:50:17,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 06:50:17,639 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;@6fc5e976, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 06:50:17,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2023-08-25 06:50:17,640 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 06:50:17,640 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 06:50:17,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 06:50:17,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:17,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 06:50:17,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:17,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:17,645 INFO L85 PathProgramCache]: Analyzing trace with hash 769, now seen corresponding path program 1 times [2023-08-25 06:50:17,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:17,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614507524] [2023-08-25 06:50:17,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:17,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:17,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:17,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:17,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614507524] [2023-08-25 06:50:17,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614507524] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:17,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:17,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 06:50:17,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434047877] [2023-08-25 06:50:17,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:17,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 06:50:17,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:17,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 06:50:17,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 06:50:17,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 315 [2023-08-25 06:50:17,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 128 flow. Second operand has 2 states, 2 states have (on average 122.5) internal successors, (245), 2 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:17,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:17,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 315 [2023-08-25 06:50:17,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:17,864 INFO L124 PetriNetUnfolderBase]: 269/396 cut-off events. [2023-08-25 06:50:17,864 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-08-25 06:50:17,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 396 events. 269/396 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1045 event pairs, 173 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 712. Up to 397 conditions per place. [2023-08-25 06:50:17,868 INFO L140 encePairwiseOnDemand]: 283/315 looper letters, 23 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2023-08-25 06:50:17,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 23 transitions, 110 flow [2023-08-25 06:50:17,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 06:50:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 06:50:17,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 299 transitions. [2023-08-25 06:50:17,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4746031746031746 [2023-08-25 06:50:17,880 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 299 transitions. [2023-08-25 06:50:17,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 299 transitions. [2023-08-25 06:50:17,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:17,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 299 transitions. [2023-08-25 06:50:17,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 149.5) internal successors, (299), 2 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:17,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 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) [2023-08-25 06:50:17,889 INFO L81 ComplementDD]: Finished complementDD. Result 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) [2023-08-25 06:50:17,891 INFO L175 Difference]: Start difference. First operand has 62 places, 55 transitions, 128 flow. Second operand 2 states and 299 transitions. [2023-08-25 06:50:17,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 23 transitions, 110 flow [2023-08-25 06:50:17,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 98 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 06:50:17,895 INFO L231 Difference]: Finished difference. Result has 25 places, 23 transitions, 52 flow [2023-08-25 06:50:17,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=25, PETRI_TRANSITIONS=23} [2023-08-25 06:50:17,899 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -37 predicate places. [2023-08-25 06:50:17,900 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 52 flow [2023-08-25 06:50:17,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 122.5) internal successors, (245), 2 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:17,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:17,900 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:50:17,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 06:50:17,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:17,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:17,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1702203935, now seen corresponding path program 1 times [2023-08-25 06:50:17,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:17,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924906626] [2023-08-25 06:50:17,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:17,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:18,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:18,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924906626] [2023-08-25 06:50:18,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924906626] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:18,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:18,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 06:50:18,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171245362] [2023-08-25 06:50:18,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:18,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 06:50:18,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:18,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 06:50:18,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 06:50:18,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 315 [2023-08-25 06:50:18,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:18,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:18,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 315 [2023-08-25 06:50:18,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:18,499 INFO L124 PetriNetUnfolderBase]: 423/623 cut-off events. [2023-08-25 06:50:18,499 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-25 06:50:18,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1280 conditions, 623 events. 423/623 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2035 event pairs, 93 based on Foata normal form. 1/460 useless extension candidates. Maximal degree in co-relation 1277. Up to 453 conditions per place. [2023-08-25 06:50:18,504 INFO L140 encePairwiseOnDemand]: 310/315 looper letters, 36 selfloop transitions, 4 changer transitions 1/41 dead transitions. [2023-08-25 06:50:18,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 41 transitions, 175 flow [2023-08-25 06:50:18,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 06:50:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 06:50:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2023-08-25 06:50:18,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4222222222222222 [2023-08-25 06:50:18,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2023-08-25 06:50:18,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2023-08-25 06:50:18,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:18,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2023-08-25 06:50:18,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:18,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:18,518 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 315.0) internal successors, (1260), 4 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:18,518 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 52 flow. Second operand 3 states and 399 transitions. [2023-08-25 06:50:18,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 41 transitions, 175 flow [2023-08-25 06:50:18,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 41 transitions, 175 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 06:50:18,520 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 78 flow [2023-08-25 06:50:18,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2023-08-25 06:50:18,521 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -34 predicate places. [2023-08-25 06:50:18,521 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 78 flow [2023-08-25 06:50:18,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:18,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:18,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:50:18,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 06:50:18,526 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:18,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:18,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1535588384, now seen corresponding path program 1 times [2023-08-25 06:50:18,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:18,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401183055] [2023-08-25 06:50:18,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:18,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:18,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:18,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401183055] [2023-08-25 06:50:18,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401183055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:18,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:18,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:50:18,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517329284] [2023-08-25 06:50:18,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:18,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:50:18,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:18,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:50:18,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 06:50:18,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 315 [2023-08-25 06:50:18,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:18,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:18,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 315 [2023-08-25 06:50:18,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:19,181 INFO L124 PetriNetUnfolderBase]: 519/783 cut-off events. [2023-08-25 06:50:19,181 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2023-08-25 06:50:19,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1852 conditions, 783 events. 519/783 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2847 event pairs, 37 based on Foata normal form. 32/815 useless extension candidates. Maximal degree in co-relation 1847. Up to 268 conditions per place. [2023-08-25 06:50:19,186 INFO L140 encePairwiseOnDemand]: 308/315 looper letters, 75 selfloop transitions, 20 changer transitions 0/95 dead transitions. [2023-08-25 06:50:19,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 95 transitions, 459 flow [2023-08-25 06:50:19,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 06:50:19,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 06:50:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 999 transitions. [2023-08-25 06:50:19,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3964285714285714 [2023-08-25 06:50:19,190 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 999 transitions. [2023-08-25 06:50:19,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 999 transitions. [2023-08-25 06:50:19,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:19,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 999 transitions. [2023-08-25 06:50:19,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 124.875) internal successors, (999), 8 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,198 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,199 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 78 flow. Second operand 8 states and 999 transitions. [2023-08-25 06:50:19,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 95 transitions, 459 flow [2023-08-25 06:50:19,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 95 transitions, 449 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 06:50:19,202 INFO L231 Difference]: Finished difference. Result has 39 places, 46 transitions, 231 flow [2023-08-25 06:50:19,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=231, PETRI_PLACES=39, PETRI_TRANSITIONS=46} [2023-08-25 06:50:19,202 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -23 predicate places. [2023-08-25 06:50:19,203 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 46 transitions, 231 flow [2023-08-25 06:50:19,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:19,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:50:19,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 06:50:19,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:19,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:19,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1113313400, now seen corresponding path program 2 times [2023-08-25 06:50:19,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:19,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621648740] [2023-08-25 06:50:19,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:19,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:19,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:19,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:19,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621648740] [2023-08-25 06:50:19,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621648740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:19,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:19,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 06:50:19,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485009064] [2023-08-25 06:50:19,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:19,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:19,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:19,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:19,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:19,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 315 [2023-08-25 06:50:19,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 46 transitions, 231 flow. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:19,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 315 [2023-08-25 06:50:19,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:19,657 INFO L124 PetriNetUnfolderBase]: 641/967 cut-off events. [2023-08-25 06:50:19,658 INFO L125 PetriNetUnfolderBase]: For 857/857 co-relation queries the response was YES. [2023-08-25 06:50:19,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2969 conditions, 967 events. 641/967 cut-off events. For 857/857 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3544 event pairs, 109 based on Foata normal form. 24/991 useless extension candidates. Maximal degree in co-relation 2959. Up to 531 conditions per place. [2023-08-25 06:50:19,664 INFO L140 encePairwiseOnDemand]: 308/315 looper letters, 70 selfloop transitions, 23 changer transitions 3/96 dead transitions. [2023-08-25 06:50:19,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 96 transitions, 617 flow [2023-08-25 06:50:19,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:50:19,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:50:19,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 758 transitions. [2023-08-25 06:50:19,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40105820105820106 [2023-08-25 06:50:19,667 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 758 transitions. [2023-08-25 06:50:19,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 758 transitions. [2023-08-25 06:50:19,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:19,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 758 transitions. [2023-08-25 06:50:19,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.33333333333333) internal successors, (758), 6 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 315.0) internal successors, (2205), 7 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,673 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 315.0) internal successors, (2205), 7 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,674 INFO L175 Difference]: Start difference. First operand has 39 places, 46 transitions, 231 flow. Second operand 6 states and 758 transitions. [2023-08-25 06:50:19,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 96 transitions, 617 flow [2023-08-25 06:50:19,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 96 transitions, 617 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 06:50:19,683 INFO L231 Difference]: Finished difference. Result has 47 places, 54 transitions, 360 flow [2023-08-25 06:50:19,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=47, PETRI_TRANSITIONS=54} [2023-08-25 06:50:19,684 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -15 predicate places. [2023-08-25 06:50:19,684 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 54 transitions, 360 flow [2023-08-25 06:50:19,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:19,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:50:19,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 06:50:19,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:19,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash 453913334, now seen corresponding path program 3 times [2023-08-25 06:50:19,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:19,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971540507] [2023-08-25 06:50:19,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:19,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:19,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:19,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:19,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971540507] [2023-08-25 06:50:19,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971540507] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:19,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:19,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:50:19,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437750888] [2023-08-25 06:50:19,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:19,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:50:19,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:19,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:50:19,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 06:50:19,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 315 [2023-08-25 06:50:19,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 54 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:19,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:19,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 315 [2023-08-25 06:50:19,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:20,227 INFO L124 PetriNetUnfolderBase]: 926/1390 cut-off events. [2023-08-25 06:50:20,227 INFO L125 PetriNetUnfolderBase]: For 1718/1718 co-relation queries the response was YES. [2023-08-25 06:50:20,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4591 conditions, 1390 events. 926/1390 cut-off events. For 1718/1718 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5654 event pairs, 48 based on Foata normal form. 24/1414 useless extension candidates. Maximal degree in co-relation 4577. Up to 533 conditions per place. [2023-08-25 06:50:20,237 INFO L140 encePairwiseOnDemand]: 307/315 looper letters, 98 selfloop transitions, 22 changer transitions 3/123 dead transitions. [2023-08-25 06:50:20,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 123 transitions, 853 flow [2023-08-25 06:50:20,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 06:50:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 06:50:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 893 transitions. [2023-08-25 06:50:20,240 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4049886621315193 [2023-08-25 06:50:20,240 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 893 transitions. [2023-08-25 06:50:20,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 893 transitions. [2023-08-25 06:50:20,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:20,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 893 transitions. [2023-08-25 06:50:20,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.57142857142857) internal successors, (893), 7 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:20,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 315.0) internal successors, (2520), 8 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:20,246 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 315.0) internal successors, (2520), 8 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:20,246 INFO L175 Difference]: Start difference. First operand has 47 places, 54 transitions, 360 flow. Second operand 7 states and 893 transitions. [2023-08-25 06:50:20,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 123 transitions, 853 flow [2023-08-25 06:50:20,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 123 transitions, 825 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-25 06:50:20,254 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 463 flow [2023-08-25 06:50:20,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=463, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2023-08-25 06:50:20,255 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -8 predicate places. [2023-08-25 06:50:20,255 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 463 flow [2023-08-25 06:50:20,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:20,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:20,256 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] [2023-08-25 06:50:20,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 06:50:20,256 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:20,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:20,257 INFO L85 PathProgramCache]: Analyzing trace with hash -420477872, now seen corresponding path program 1 times [2023-08-25 06:50:20,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:20,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507663408] [2023-08-25 06:50:20,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:20,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:20,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:20,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507663408] [2023-08-25 06:50:20,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507663408] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:20,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:20,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:50:20,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457072406] [2023-08-25 06:50:20,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:20,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:20,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:20,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:20,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:20,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 315 [2023-08-25 06:50:20,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 463 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:20,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:20,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 315 [2023-08-25 06:50:20,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:20,905 INFO L124 PetriNetUnfolderBase]: 1308/1985 cut-off events. [2023-08-25 06:50:20,905 INFO L125 PetriNetUnfolderBase]: For 5367/5367 co-relation queries the response was YES. [2023-08-25 06:50:20,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7456 conditions, 1985 events. 1308/1985 cut-off events. For 5367/5367 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9069 event pairs, 222 based on Foata normal form. 24/2009 useless extension candidates. Maximal degree in co-relation 7440. Up to 904 conditions per place. [2023-08-25 06:50:20,919 INFO L140 encePairwiseOnDemand]: 307/315 looper letters, 119 selfloop transitions, 70 changer transitions 7/196 dead transitions. [2023-08-25 06:50:20,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 196 transitions, 1882 flow [2023-08-25 06:50:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:50:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:50:20,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 771 transitions. [2023-08-25 06:50:20,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40793650793650793 [2023-08-25 06:50:20,922 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 771 transitions. [2023-08-25 06:50:20,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 771 transitions. [2023-08-25 06:50:20,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:20,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 771 transitions. [2023-08-25 06:50:20,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.5) internal successors, (771), 6 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:20,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 315.0) internal successors, (2205), 7 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:20,927 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 315.0) internal successors, (2205), 7 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:20,927 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 463 flow. Second operand 6 states and 771 transitions. [2023-08-25 06:50:20,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 196 transitions, 1882 flow [2023-08-25 06:50:20,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 196 transitions, 1796 flow, removed 15 selfloop flow, removed 2 redundant places. [2023-08-25 06:50:20,942 INFO L231 Difference]: Finished difference. Result has 59 places, 125 transitions, 1226 flow [2023-08-25 06:50:20,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1226, PETRI_PLACES=59, PETRI_TRANSITIONS=125} [2023-08-25 06:50:20,943 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2023-08-25 06:50:20,944 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 125 transitions, 1226 flow [2023-08-25 06:50:20,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:20,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:20,944 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] [2023-08-25 06:50:20,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 06:50:20,944 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:20,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:20,945 INFO L85 PathProgramCache]: Analyzing trace with hash 647574447, now seen corresponding path program 1 times [2023-08-25 06:50:20,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:20,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231467993] [2023-08-25 06:50:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:20,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:21,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:21,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231467993] [2023-08-25 06:50:21,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231467993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:21,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:21,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 06:50:21,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848890920] [2023-08-25 06:50:21,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:21,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:21,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:21,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:21,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:21,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 315 [2023-08-25 06:50:21,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 125 transitions, 1226 flow. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:21,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:21,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 315 [2023-08-25 06:50:21,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:21,561 INFO L124 PetriNetUnfolderBase]: 1634/2501 cut-off events. [2023-08-25 06:50:21,561 INFO L125 PetriNetUnfolderBase]: For 7912/7912 co-relation queries the response was YES. [2023-08-25 06:50:21,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11138 conditions, 2501 events. 1634/2501 cut-off events. For 7912/7912 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 11766 event pairs, 253 based on Foata normal form. 78/2579 useless extension candidates. Maximal degree in co-relation 11120. Up to 1720 conditions per place. [2023-08-25 06:50:21,585 INFO L140 encePairwiseOnDemand]: 309/315 looper letters, 151 selfloop transitions, 27 changer transitions 3/181 dead transitions. [2023-08-25 06:50:21,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 181 transitions, 1901 flow [2023-08-25 06:50:21,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 06:50:21,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 06:50:21,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 639 transitions. [2023-08-25 06:50:21,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4057142857142857 [2023-08-25 06:50:21,588 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 639 transitions. [2023-08-25 06:50:21,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 639 transitions. [2023-08-25 06:50:21,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:21,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 639 transitions. [2023-08-25 06:50:21,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:21,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:21,593 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:21,593 INFO L175 Difference]: Start difference. First operand has 59 places, 125 transitions, 1226 flow. Second operand 5 states and 639 transitions. [2023-08-25 06:50:21,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 181 transitions, 1901 flow [2023-08-25 06:50:21,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 181 transitions, 1897 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-25 06:50:21,648 INFO L231 Difference]: Finished difference. Result has 64 places, 126 transitions, 1303 flow [2023-08-25 06:50:21,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1303, PETRI_PLACES=64, PETRI_TRANSITIONS=126} [2023-08-25 06:50:21,649 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 2 predicate places. [2023-08-25 06:50:21,649 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 126 transitions, 1303 flow [2023-08-25 06:50:21,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:21,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:21,649 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] [2023-08-25 06:50:21,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 06:50:21,650 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:21,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:21,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1297175776, now seen corresponding path program 2 times [2023-08-25 06:50:21,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:21,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061490390] [2023-08-25 06:50:21,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:21,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:21,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:21,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061490390] [2023-08-25 06:50:21,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061490390] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:21,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:21,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:50:21,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672411791] [2023-08-25 06:50:21,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:21,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:21,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:21,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:21,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:21,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 315 [2023-08-25 06:50:21,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 126 transitions, 1303 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:21,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:21,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 315 [2023-08-25 06:50:21,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:22,368 INFO L124 PetriNetUnfolderBase]: 1912/2998 cut-off events. [2023-08-25 06:50:22,368 INFO L125 PetriNetUnfolderBase]: For 11660/11660 co-relation queries the response was YES. [2023-08-25 06:50:22,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13783 conditions, 2998 events. 1912/2998 cut-off events. For 11660/11660 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 15452 event pairs, 469 based on Foata normal form. 44/3042 useless extension candidates. Maximal degree in co-relation 13763. Up to 1479 conditions per place. [2023-08-25 06:50:22,396 INFO L140 encePairwiseOnDemand]: 308/315 looper letters, 89 selfloop transitions, 92 changer transitions 0/181 dead transitions. [2023-08-25 06:50:22,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 181 transitions, 1976 flow [2023-08-25 06:50:22,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 06:50:22,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 06:50:22,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 646 transitions. [2023-08-25 06:50:22,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41015873015873017 [2023-08-25 06:50:22,398 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 646 transitions. [2023-08-25 06:50:22,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 646 transitions. [2023-08-25 06:50:22,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:22,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 646 transitions. [2023-08-25 06:50:22,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:22,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:22,403 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:22,403 INFO L175 Difference]: Start difference. First operand has 64 places, 126 transitions, 1303 flow. Second operand 5 states and 646 transitions. [2023-08-25 06:50:22,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 181 transitions, 1976 flow [2023-08-25 06:50:22,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 181 transitions, 1914 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-25 06:50:22,430 INFO L231 Difference]: Finished difference. Result has 68 places, 135 transitions, 1642 flow [2023-08-25 06:50:22,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=1247, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1642, PETRI_PLACES=68, PETRI_TRANSITIONS=135} [2023-08-25 06:50:22,431 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 6 predicate places. [2023-08-25 06:50:22,431 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 135 transitions, 1642 flow [2023-08-25 06:50:22,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:22,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:22,432 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] [2023-08-25 06:50:22,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 06:50:22,432 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:22,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:22,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1703106230, now seen corresponding path program 3 times [2023-08-25 06:50:22,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:22,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445901100] [2023-08-25 06:50:22,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:22,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:22,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:22,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:22,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445901100] [2023-08-25 06:50:22,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445901100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:22,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:22,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:50:22,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070237342] [2023-08-25 06:50:22,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:22,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:22,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:22,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:22,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:22,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 315 [2023-08-25 06:50:22,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 135 transitions, 1642 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:22,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:22,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 315 [2023-08-25 06:50:22,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:23,212 INFO L124 PetriNetUnfolderBase]: 1925/3063 cut-off events. [2023-08-25 06:50:23,212 INFO L125 PetriNetUnfolderBase]: For 16257/16257 co-relation queries the response was YES. [2023-08-25 06:50:23,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15372 conditions, 3063 events. 1925/3063 cut-off events. For 16257/16257 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 16063 event pairs, 509 based on Foata normal form. 34/3097 useless extension candidates. Maximal degree in co-relation 15349. Up to 1666 conditions per place. [2023-08-25 06:50:23,246 INFO L140 encePairwiseOnDemand]: 308/315 looper letters, 88 selfloop transitions, 93 changer transitions 7/188 dead transitions. [2023-08-25 06:50:23,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 188 transitions, 2302 flow [2023-08-25 06:50:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 06:50:23,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 06:50:23,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 650 transitions. [2023-08-25 06:50:23,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4126984126984127 [2023-08-25 06:50:23,249 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 650 transitions. [2023-08-25 06:50:23,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 650 transitions. [2023-08-25 06:50:23,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:23,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 650 transitions. [2023-08-25 06:50:23,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:23,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:23,255 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:23,255 INFO L175 Difference]: Start difference. First operand has 68 places, 135 transitions, 1642 flow. Second operand 5 states and 650 transitions. [2023-08-25 06:50:23,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 188 transitions, 2302 flow [2023-08-25 06:50:23,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 188 transitions, 2186 flow, removed 15 selfloop flow, removed 1 redundant places. [2023-08-25 06:50:23,319 INFO L231 Difference]: Finished difference. Result has 74 places, 137 transitions, 1842 flow [2023-08-25 06:50:23,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=1521, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1842, PETRI_PLACES=74, PETRI_TRANSITIONS=137} [2023-08-25 06:50:23,320 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places. [2023-08-25 06:50:23,320 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 137 transitions, 1842 flow [2023-08-25 06:50:23,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:23,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:23,320 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] [2023-08-25 06:50:23,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 06:50:23,321 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:23,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:23,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1735566549, now seen corresponding path program 2 times [2023-08-25 06:50:23,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:23,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878854458] [2023-08-25 06:50:23,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:23,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:23,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:23,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:23,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878854458] [2023-08-25 06:50:23,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878854458] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:23,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:23,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 06:50:23,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917335407] [2023-08-25 06:50:23,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:23,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:23,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:23,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:23,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:23,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 315 [2023-08-25 06:50:23,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 137 transitions, 1842 flow. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:23,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:23,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 315 [2023-08-25 06:50:23,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:23,974 INFO L124 PetriNetUnfolderBase]: 1874/2967 cut-off events. [2023-08-25 06:50:23,975 INFO L125 PetriNetUnfolderBase]: For 16823/16823 co-relation queries the response was YES. [2023-08-25 06:50:23,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15625 conditions, 2967 events. 1874/2967 cut-off events. For 16823/16823 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 15056 event pairs, 401 based on Foata normal form. 16/2983 useless extension candidates. Maximal degree in co-relation 15599. Up to 2809 conditions per place. [2023-08-25 06:50:23,999 INFO L140 encePairwiseOnDemand]: 309/315 looper letters, 141 selfloop transitions, 26 changer transitions 1/168 dead transitions. [2023-08-25 06:50:23,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 2353 flow [2023-08-25 06:50:24,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 06:50:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 06:50:24,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 628 transitions. [2023-08-25 06:50:24,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3987301587301587 [2023-08-25 06:50:24,002 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 628 transitions. [2023-08-25 06:50:24,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 628 transitions. [2023-08-25 06:50:24,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:24,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 628 transitions. [2023-08-25 06:50:24,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.6) internal successors, (628), 5 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:24,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:24,006 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:24,006 INFO L175 Difference]: Start difference. First operand has 74 places, 137 transitions, 1842 flow. Second operand 5 states and 628 transitions. [2023-08-25 06:50:24,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 2353 flow [2023-08-25 06:50:24,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 168 transitions, 2235 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-25 06:50:24,043 INFO L231 Difference]: Finished difference. Result has 76 places, 140 transitions, 1855 flow [2023-08-25 06:50:24,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=1728, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1855, PETRI_PLACES=76, PETRI_TRANSITIONS=140} [2023-08-25 06:50:24,044 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 14 predicate places. [2023-08-25 06:50:24,044 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 140 transitions, 1855 flow [2023-08-25 06:50:24,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:24,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:24,044 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] [2023-08-25 06:50:24,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 06:50:24,044 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:24,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:24,045 INFO L85 PathProgramCache]: Analyzing trace with hash 740562010, now seen corresponding path program 4 times [2023-08-25 06:50:24,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:24,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455088374] [2023-08-25 06:50:24,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:24,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:24,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:24,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:24,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455088374] [2023-08-25 06:50:24,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455088374] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:50:24,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345577090] [2023-08-25 06:50:24,277 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 06:50:24,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:50:24,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:50:24,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:50:24,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 06:50:24,425 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 06:50:24,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:50:24,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-25 06:50:24,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:50:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:24,617 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:50:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:24,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345577090] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 06:50:24,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 06:50:24,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5] total 13 [2023-08-25 06:50:24,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199320291] [2023-08-25 06:50:24,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:24,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:50:24,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:24,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:50:24,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-08-25 06:50:24,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 315 [2023-08-25 06:50:24,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 140 transitions, 1855 flow. Second operand has 6 states, 6 states have (on average 115.33333333333333) internal successors, (692), 6 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:24,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:24,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 315 [2023-08-25 06:50:24,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:25,572 INFO L124 PetriNetUnfolderBase]: 3292/5315 cut-off events. [2023-08-25 06:50:25,572 INFO L125 PetriNetUnfolderBase]: For 28827/28827 co-relation queries the response was YES. [2023-08-25 06:50:25,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27102 conditions, 5315 events. 3292/5315 cut-off events. For 28827/28827 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 31873 event pairs, 275 based on Foata normal form. 28/5343 useless extension candidates. Maximal degree in co-relation 27076. Up to 1659 conditions per place. [2023-08-25 06:50:25,626 INFO L140 encePairwiseOnDemand]: 303/315 looper letters, 155 selfloop transitions, 175 changer transitions 0/330 dead transitions. [2023-08-25 06:50:25,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 330 transitions, 4382 flow [2023-08-25 06:50:25,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 06:50:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 06:50:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 890 transitions. [2023-08-25 06:50:25,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4036281179138322 [2023-08-25 06:50:25,630 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 890 transitions. [2023-08-25 06:50:25,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 890 transitions. [2023-08-25 06:50:25,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:25,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 890 transitions. [2023-08-25 06:50:25,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.14285714285714) internal successors, (890), 7 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:25,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 315.0) internal successors, (2520), 8 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:25,635 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 315.0) internal successors, (2520), 8 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:25,635 INFO L175 Difference]: Start difference. First operand has 76 places, 140 transitions, 1855 flow. Second operand 7 states and 890 transitions. [2023-08-25 06:50:25,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 330 transitions, 4382 flow [2023-08-25 06:50:25,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 330 transitions, 4344 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 06:50:25,728 INFO L231 Difference]: Finished difference. Result has 86 places, 238 transitions, 3814 flow [2023-08-25 06:50:25,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=1824, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3814, PETRI_PLACES=86, PETRI_TRANSITIONS=238} [2023-08-25 06:50:25,729 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 24 predicate places. [2023-08-25 06:50:25,729 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 238 transitions, 3814 flow [2023-08-25 06:50:25,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.33333333333333) internal successors, (692), 6 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:25,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:25,730 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] [2023-08-25 06:50:25,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 06:50:25,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-25 06:50:25,937 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:25,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:25,938 INFO L85 PathProgramCache]: Analyzing trace with hash -225348800, now seen corresponding path program 5 times [2023-08-25 06:50:25,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:25,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012059873] [2023-08-25 06:50:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:25,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:26,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:26,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:26,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012059873] [2023-08-25 06:50:26,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012059873] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:50:26,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037127773] [2023-08-25 06:50:26,155 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 06:50:26,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:50:26,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:50:26,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:50:26,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 06:50:26,280 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 06:50:26,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:50:26,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-25 06:50:26,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:50:26,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:26,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:50:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:26,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037127773] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 06:50:26,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 06:50:26,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5] total 13 [2023-08-25 06:50:26,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990521027] [2023-08-25 06:50:26,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:26,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:50:26,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:50:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-08-25 06:50:26,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 315 [2023-08-25 06:50:26,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 238 transitions, 3814 flow. Second operand has 6 states, 6 states have (on average 115.33333333333333) internal successors, (692), 6 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:26,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:26,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 315 [2023-08-25 06:50:26,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:27,339 INFO L124 PetriNetUnfolderBase]: 3319/5370 cut-off events. [2023-08-25 06:50:27,340 INFO L125 PetriNetUnfolderBase]: For 44519/44519 co-relation queries the response was YES. [2023-08-25 06:50:27,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32586 conditions, 5370 events. 3319/5370 cut-off events. For 44519/44519 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 32266 event pairs, 313 based on Foata normal form. 6/5376 useless extension candidates. Maximal degree in co-relation 32555. Up to 1679 conditions per place. [2023-08-25 06:50:27,459 INFO L140 encePairwiseOnDemand]: 303/315 looper letters, 161 selfloop transitions, 179 changer transitions 0/340 dead transitions. [2023-08-25 06:50:27,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 340 transitions, 5256 flow [2023-08-25 06:50:27,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 06:50:27,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 06:50:27,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 890 transitions. [2023-08-25 06:50:27,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4036281179138322 [2023-08-25 06:50:27,463 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 890 transitions. [2023-08-25 06:50:27,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 890 transitions. [2023-08-25 06:50:27,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:27,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 890 transitions. [2023-08-25 06:50:27,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.14285714285714) internal successors, (890), 7 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:27,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 315.0) internal successors, (2520), 8 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:27,469 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 315.0) internal successors, (2520), 8 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:27,469 INFO L175 Difference]: Start difference. First operand has 86 places, 238 transitions, 3814 flow. Second operand 7 states and 890 transitions. [2023-08-25 06:50:27,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 340 transitions, 5256 flow [2023-08-25 06:50:27,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 340 transitions, 5242 flow, removed 7 selfloop flow, removed 0 redundant places. [2023-08-25 06:50:27,610 INFO L231 Difference]: Finished difference. Result has 96 places, 249 transitions, 4533 flow [2023-08-25 06:50:27,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=3800, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4533, PETRI_PLACES=96, PETRI_TRANSITIONS=249} [2023-08-25 06:50:27,612 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 34 predicate places. [2023-08-25 06:50:27,613 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 249 transitions, 4533 flow [2023-08-25 06:50:27,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.33333333333333) internal successors, (692), 6 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:27,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:27,613 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] [2023-08-25 06:50:27,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 06:50:27,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-25 06:50:27,819 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:27,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:27,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1388894416, now seen corresponding path program 6 times [2023-08-25 06:50:27,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:27,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923885929] [2023-08-25 06:50:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:27,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:28,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:28,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923885929] [2023-08-25 06:50:28,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923885929] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:28,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:28,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:50:28,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184948954] [2023-08-25 06:50:28,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:28,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:28,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:28,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:28,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:28,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 315 [2023-08-25 06:50:28,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 249 transitions, 4533 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:28,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:28,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 315 [2023-08-25 06:50:28,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:28,979 INFO L124 PetriNetUnfolderBase]: 4108/6521 cut-off events. [2023-08-25 06:50:28,979 INFO L125 PetriNetUnfolderBase]: For 75967/75967 co-relation queries the response was YES. [2023-08-25 06:50:29,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44199 conditions, 6521 events. 4108/6521 cut-off events. For 75967/75967 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 38766 event pairs, 1144 based on Foata normal form. 76/6597 useless extension candidates. Maximal degree in co-relation 44164. Up to 2801 conditions per place. [2023-08-25 06:50:29,042 INFO L140 encePairwiseOnDemand]: 308/315 looper letters, 162 selfloop transitions, 202 changer transitions 2/366 dead transitions. [2023-08-25 06:50:29,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 366 transitions, 6834 flow [2023-08-25 06:50:29,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 06:50:29,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 06:50:29,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 651 transitions. [2023-08-25 06:50:29,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41333333333333333 [2023-08-25 06:50:29,045 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 651 transitions. [2023-08-25 06:50:29,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 651 transitions. [2023-08-25 06:50:29,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:29,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 651 transitions. [2023-08-25 06:50:29,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:29,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:29,049 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:29,049 INFO L175 Difference]: Start difference. First operand has 96 places, 249 transitions, 4533 flow. Second operand 5 states and 651 transitions. [2023-08-25 06:50:29,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 366 transitions, 6834 flow [2023-08-25 06:50:29,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 366 transitions, 6476 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-08-25 06:50:29,276 INFO L231 Difference]: Finished difference. Result has 98 places, 288 transitions, 5514 flow [2023-08-25 06:50:29,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=4279, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5514, PETRI_PLACES=98, PETRI_TRANSITIONS=288} [2023-08-25 06:50:29,277 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 36 predicate places. [2023-08-25 06:50:29,277 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 288 transitions, 5514 flow [2023-08-25 06:50:29,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:29,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:29,278 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] [2023-08-25 06:50:29,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 06:50:29,278 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:29,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:29,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1284747923, now seen corresponding path program 3 times [2023-08-25 06:50:29,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:29,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794755871] [2023-08-25 06:50:29,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:29,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:29,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:29,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794755871] [2023-08-25 06:50:29,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794755871] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:29,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:29,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 06:50:29,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662351737] [2023-08-25 06:50:29,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:29,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:29,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:29,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:29,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:29,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 315 [2023-08-25 06:50:29,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 288 transitions, 5514 flow. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:29,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:29,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 315 [2023-08-25 06:50:29,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:30,447 INFO L124 PetriNetUnfolderBase]: 4036/6433 cut-off events. [2023-08-25 06:50:30,448 INFO L125 PetriNetUnfolderBase]: For 77119/77119 co-relation queries the response was YES. [2023-08-25 06:50:30,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42834 conditions, 6433 events. 4036/6433 cut-off events. For 77119/77119 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 38210 event pairs, 848 based on Foata normal form. 60/6493 useless extension candidates. Maximal degree in co-relation 42797. Up to 5872 conditions per place. [2023-08-25 06:50:30,503 INFO L140 encePairwiseOnDemand]: 309/315 looper letters, 310 selfloop transitions, 20 changer transitions 7/337 dead transitions. [2023-08-25 06:50:30,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 337 transitions, 6593 flow [2023-08-25 06:50:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 06:50:30,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 06:50:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 631 transitions. [2023-08-25 06:50:30,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4006349206349206 [2023-08-25 06:50:30,506 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 631 transitions. [2023-08-25 06:50:30,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 631 transitions. [2023-08-25 06:50:30,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:30,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 631 transitions. [2023-08-25 06:50:30,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.2) internal successors, (631), 5 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) [2023-08-25 06:50:30,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:30,510 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:30,511 INFO L175 Difference]: Start difference. First operand has 98 places, 288 transitions, 5514 flow. Second operand 5 states and 631 transitions. [2023-08-25 06:50:30,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 337 transitions, 6593 flow [2023-08-25 06:50:30,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 337 transitions, 6374 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 06:50:30,802 INFO L231 Difference]: Finished difference. Result has 102 places, 282 transitions, 5219 flow [2023-08-25 06:50:30,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=5146, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5219, PETRI_PLACES=102, PETRI_TRANSITIONS=282} [2023-08-25 06:50:30,803 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 40 predicate places. [2023-08-25 06:50:30,804 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 282 transitions, 5219 flow [2023-08-25 06:50:30,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:30,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:30,804 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] [2023-08-25 06:50:30,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 06:50:30,805 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:30,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash -335090854, now seen corresponding path program 7 times [2023-08-25 06:50:30,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:30,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470747365] [2023-08-25 06:50:30,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:30,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:30,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:30,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:31,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470747365] [2023-08-25 06:50:31,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470747365] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:50:31,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97307115] [2023-08-25 06:50:31,002 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 06:50:31,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:50:31,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:50:31,003 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:50:31,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 06:50:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:31,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-25 06:50:31,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:50:31,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:31,259 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:50:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:31,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97307115] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:50:31,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:50:31,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 10 [2023-08-25 06:50:31,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156198924] [2023-08-25 06:50:31,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:50:31,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 06:50:31,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:31,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 06:50:31,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-25 06:50:31,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 315 [2023-08-25 06:50:31,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 282 transitions, 5219 flow. Second operand has 11 states, 11 states have (on average 116.45454545454545) internal successors, (1281), 11 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:31,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:31,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 315 [2023-08-25 06:50:31,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:33,515 INFO L124 PetriNetUnfolderBase]: 6828/11032 cut-off events. [2023-08-25 06:50:33,515 INFO L125 PetriNetUnfolderBase]: For 128953/128953 co-relation queries the response was YES. [2023-08-25 06:50:33,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71911 conditions, 11032 events. 6828/11032 cut-off events. For 128953/128953 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 73272 event pairs, 867 based on Foata normal form. 353/11385 useless extension candidates. Maximal degree in co-relation 71871. Up to 5890 conditions per place. [2023-08-25 06:50:33,605 INFO L140 encePairwiseOnDemand]: 308/315 looper letters, 481 selfloop transitions, 125 changer transitions 11/617 dead transitions. [2023-08-25 06:50:33,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 617 transitions, 11608 flow [2023-08-25 06:50:33,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 06:50:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 06:50:33,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 997 transitions. [2023-08-25 06:50:33,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3956349206349206 [2023-08-25 06:50:33,609 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 997 transitions. [2023-08-25 06:50:33,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 997 transitions. [2023-08-25 06:50:33,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:33,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 997 transitions. [2023-08-25 06:50:33,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 124.625) internal successors, (997), 8 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:33,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:33,617 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:33,617 INFO L175 Difference]: Start difference. First operand has 102 places, 282 transitions, 5219 flow. Second operand 8 states and 997 transitions. [2023-08-25 06:50:33,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 617 transitions, 11608 flow [2023-08-25 06:50:34,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 617 transitions, 11592 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 06:50:34,082 INFO L231 Difference]: Finished difference. Result has 113 places, 393 transitions, 7784 flow [2023-08-25 06:50:34,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=5192, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7784, PETRI_PLACES=113, PETRI_TRANSITIONS=393} [2023-08-25 06:50:34,082 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 51 predicate places. [2023-08-25 06:50:34,082 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 393 transitions, 7784 flow [2023-08-25 06:50:34,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 116.45454545454545) internal successors, (1281), 11 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:34,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:34,083 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] [2023-08-25 06:50:34,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 06:50:34,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:50:34,289 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:34,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash -63947798, now seen corresponding path program 8 times [2023-08-25 06:50:34,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:34,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7219823] [2023-08-25 06:50:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:34,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:34,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:34,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:34,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7219823] [2023-08-25 06:50:34,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7219823] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:34,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:34,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:50:34,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874340615] [2023-08-25 06:50:34,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:34,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:34,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:34,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:34,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:34,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 315 [2023-08-25 06:50:34,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 393 transitions, 7784 flow. Second operand has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:34,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:34,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 315 [2023-08-25 06:50:34,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:36,690 INFO L124 PetriNetUnfolderBase]: 8012/12737 cut-off events. [2023-08-25 06:50:36,690 INFO L125 PetriNetUnfolderBase]: For 188443/188443 co-relation queries the response was YES. [2023-08-25 06:50:36,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93775 conditions, 12737 events. 8012/12737 cut-off events. For 188443/188443 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 85036 event pairs, 1291 based on Foata normal form. 272/13009 useless extension candidates. Maximal degree in co-relation 93730. Up to 4574 conditions per place. [2023-08-25 06:50:36,865 INFO L140 encePairwiseOnDemand]: 308/315 looper letters, 342 selfloop transitions, 347 changer transitions 6/695 dead transitions. [2023-08-25 06:50:36,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 695 transitions, 14233 flow [2023-08-25 06:50:36,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:50:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:50:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 772 transitions. [2023-08-25 06:50:36,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4084656084656085 [2023-08-25 06:50:36,868 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 772 transitions. [2023-08-25 06:50:36,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 772 transitions. [2023-08-25 06:50:36,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:36,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 772 transitions. [2023-08-25 06:50:36,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:36,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 315.0) internal successors, (2205), 7 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:36,873 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 315.0) internal successors, (2205), 7 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:36,873 INFO L175 Difference]: Start difference. First operand has 113 places, 393 transitions, 7784 flow. Second operand 6 states and 772 transitions. [2023-08-25 06:50:36,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 695 transitions, 14233 flow [2023-08-25 06:50:37,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 695 transitions, 13913 flow, removed 160 selfloop flow, removed 0 redundant places. [2023-08-25 06:50:37,486 INFO L231 Difference]: Finished difference. Result has 121 places, 521 transitions, 11242 flow [2023-08-25 06:50:37,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=7558, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=11242, PETRI_PLACES=121, PETRI_TRANSITIONS=521} [2023-08-25 06:50:37,487 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 59 predicate places. [2023-08-25 06:50:37,487 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 521 transitions, 11242 flow [2023-08-25 06:50:37,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:37,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:37,487 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] [2023-08-25 06:50:37,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 06:50:37,487 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:37,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:37,488 INFO L85 PathProgramCache]: Analyzing trace with hash 459358008, now seen corresponding path program 9 times [2023-08-25 06:50:37,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:37,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119254781] [2023-08-25 06:50:37,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:37,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:37,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:37,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119254781] [2023-08-25 06:50:37,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119254781] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:37,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:37,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 06:50:37,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418008267] [2023-08-25 06:50:37,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:37,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:37,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:37,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:37,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:37,632 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 315 [2023-08-25 06:50:37,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 521 transitions, 11242 flow. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:37,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:37,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 315 [2023-08-25 06:50:37,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:40,127 INFO L124 PetriNetUnfolderBase]: 7967/12638 cut-off events. [2023-08-25 06:50:40,127 INFO L125 PetriNetUnfolderBase]: For 207854/207854 co-relation queries the response was YES. [2023-08-25 06:50:40,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97671 conditions, 12638 events. 7967/12638 cut-off events. For 207854/207854 co-relation queries the response was YES. Maximal size of possible extension queue 671. Compared 82780 event pairs, 1470 based on Foata normal form. 8/12646 useless extension candidates. Maximal degree in co-relation 97622. Up to 12460 conditions per place. [2023-08-25 06:50:40,221 INFO L140 encePairwiseOnDemand]: 308/315 looper letters, 530 selfloop transitions, 20 changer transitions 2/552 dead transitions. [2023-08-25 06:50:40,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 552 transitions, 12587 flow [2023-08-25 06:50:40,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 06:50:40,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 06:50:40,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 625 transitions. [2023-08-25 06:50:40,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3968253968253968 [2023-08-25 06:50:40,223 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 625 transitions. [2023-08-25 06:50:40,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 625 transitions. [2023-08-25 06:50:40,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:40,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 625 transitions. [2023-08-25 06:50:40,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:40,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:40,227 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:40,228 INFO L175 Difference]: Start difference. First operand has 121 places, 521 transitions, 11242 flow. Second operand 5 states and 625 transitions. [2023-08-25 06:50:40,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 552 transitions, 12587 flow [2023-08-25 06:50:40,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 552 transitions, 12316 flow, removed 120 selfloop flow, removed 3 redundant places. [2023-08-25 06:50:40,853 INFO L231 Difference]: Finished difference. Result has 123 places, 524 transitions, 11083 flow [2023-08-25 06:50:40,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=10971, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=501, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=11083, PETRI_PLACES=123, PETRI_TRANSITIONS=524} [2023-08-25 06:50:40,853 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 61 predicate places. [2023-08-25 06:50:40,853 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 524 transitions, 11083 flow [2023-08-25 06:50:40,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:40,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:40,854 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] [2023-08-25 06:50:40,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 06:50:40,854 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:40,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1341820780, now seen corresponding path program 10 times [2023-08-25 06:50:40,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:40,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465650087] [2023-08-25 06:50:40,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:40,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:41,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:41,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:41,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465650087] [2023-08-25 06:50:41,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465650087] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:50:41,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:50:41,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 06:50:41,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721168220] [2023-08-25 06:50:41,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:50:41,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:50:41,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:41,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:50:41,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 06:50:41,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 315 [2023-08-25 06:50:41,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 524 transitions, 11083 flow. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:41,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:41,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 315 [2023-08-25 06:50:41,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:43,765 INFO L124 PetriNetUnfolderBase]: 8078/12799 cut-off events. [2023-08-25 06:50:43,766 INFO L125 PetriNetUnfolderBase]: For 201764/201764 co-relation queries the response was YES. [2023-08-25 06:50:43,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98041 conditions, 12799 events. 8078/12799 cut-off events. For 201764/201764 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 83745 event pairs, 1466 based on Foata normal form. 2/12801 useless extension candidates. Maximal degree in co-relation 97990. Up to 12396 conditions per place. [2023-08-25 06:50:43,862 INFO L140 encePairwiseOnDemand]: 308/315 looper letters, 556 selfloop transitions, 23 changer transitions 4/583 dead transitions. [2023-08-25 06:50:43,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 583 transitions, 13028 flow [2023-08-25 06:50:43,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:50:43,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:50:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 750 transitions. [2023-08-25 06:50:43,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3968253968253968 [2023-08-25 06:50:43,866 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 750 transitions. [2023-08-25 06:50:43,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 750 transitions. [2023-08-25 06:50:43,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:43,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 750 transitions. [2023-08-25 06:50:43,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:43,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 315.0) internal successors, (2205), 7 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:43,872 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 315.0) internal successors, (2205), 7 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:43,872 INFO L175 Difference]: Start difference. First operand has 123 places, 524 transitions, 11083 flow. Second operand 6 states and 750 transitions. [2023-08-25 06:50:43,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 583 transitions, 13028 flow [2023-08-25 06:50:44,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 583 transitions, 12912 flow, removed 37 selfloop flow, removed 5 redundant places. [2023-08-25 06:50:44,550 INFO L231 Difference]: Finished difference. Result has 122 places, 521 transitions, 10929 flow [2023-08-25 06:50:44,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=10814, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10929, PETRI_PLACES=122, PETRI_TRANSITIONS=521} [2023-08-25 06:50:44,551 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 60 predicate places. [2023-08-25 06:50:44,551 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 521 transitions, 10929 flow [2023-08-25 06:50:44,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:44,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:44,551 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] [2023-08-25 06:50:44,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 06:50:44,551 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:44,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:44,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2076196554, now seen corresponding path program 1 times [2023-08-25 06:50:44,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:44,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547475053] [2023-08-25 06:50:44,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:44,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:44,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:44,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547475053] [2023-08-25 06:50:44,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547475053] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:50:44,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764390872] [2023-08-25 06:50:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:44,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:50:44,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:50:44,811 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:50:44,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 06:50:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:44,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-25 06:50:44,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:50:45,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:45,054 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:50:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:45,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764390872] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:50:45,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:50:45,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2023-08-25 06:50:45,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95897326] [2023-08-25 06:50:45,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:50:45,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 06:50:45,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:45,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 06:50:45,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-25 06:50:45,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 315 [2023-08-25 06:50:45,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 521 transitions, 10929 flow. Second operand has 10 states, 10 states have (on average 116.5) internal successors, (1165), 10 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:45,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:45,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 315 [2023-08-25 06:50:45,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:49,013 INFO L124 PetriNetUnfolderBase]: 10597/17473 cut-off events. [2023-08-25 06:50:49,013 INFO L125 PetriNetUnfolderBase]: For 263918/263918 co-relation queries the response was YES. [2023-08-25 06:50:49,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132530 conditions, 17473 events. 10597/17473 cut-off events. For 263918/263918 co-relation queries the response was YES. Maximal size of possible extension queue 984. Compared 128858 event pairs, 720 based on Foata normal form. 23/17496 useless extension candidates. Maximal degree in co-relation 132481. Up to 10086 conditions per place. [2023-08-25 06:50:49,159 INFO L140 encePairwiseOnDemand]: 309/315 looper letters, 782 selfloop transitions, 306 changer transitions 7/1095 dead transitions. [2023-08-25 06:50:49,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 1095 transitions, 24075 flow [2023-08-25 06:50:49,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 06:50:49,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 06:50:49,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1119 transitions. [2023-08-25 06:50:49,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39470899470899473 [2023-08-25 06:50:49,162 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1119 transitions. [2023-08-25 06:50:49,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1119 transitions. [2023-08-25 06:50:49,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:49,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1119 transitions. [2023-08-25 06:50:49,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.33333333333333) internal successors, (1119), 9 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:49,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 315.0) internal successors, (3150), 10 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:49,167 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 315.0) internal successors, (3150), 10 states have internal predecessors, (3150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:49,167 INFO L175 Difference]: Start difference. First operand has 122 places, 521 transitions, 10929 flow. Second operand 9 states and 1119 transitions. [2023-08-25 06:50:49,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 1095 transitions, 24075 flow [2023-08-25 06:50:49,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 1095 transitions, 24027 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-25 06:50:49,996 INFO L231 Difference]: Finished difference. Result has 128 places, 729 transitions, 16481 flow [2023-08-25 06:50:49,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=10881, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=16481, PETRI_PLACES=128, PETRI_TRANSITIONS=729} [2023-08-25 06:50:49,997 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 66 predicate places. [2023-08-25 06:50:49,997 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 729 transitions, 16481 flow [2023-08-25 06:50:49,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 116.5) internal successors, (1165), 10 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:49,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:49,997 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] [2023-08-25 06:50:50,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 06:50:50,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:50:50,198 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:50,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:50,199 INFO L85 PathProgramCache]: Analyzing trace with hash 179062240, now seen corresponding path program 2 times [2023-08-25 06:50:50,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:50,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035758110] [2023-08-25 06:50:50,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:50,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:50,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:50,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035758110] [2023-08-25 06:50:50,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035758110] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:50:50,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199315318] [2023-08-25 06:50:50,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 06:50:50,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:50:50,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:50:50,593 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:50:50,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 06:50:50,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 06:50:50,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:50:50,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-25 06:50:50,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:50:50,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:50,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:50:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:51,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199315318] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:50:51,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:50:51,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-25 06:50:51,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734675262] [2023-08-25 06:50:51,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:50:51,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 06:50:51,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:51,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 06:50:51,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-25 06:50:51,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 315 [2023-08-25 06:50:51,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 729 transitions, 16481 flow. Second operand has 9 states, 9 states have (on average 116.77777777777777) internal successors, (1051), 9 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:51,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:51,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 315 [2023-08-25 06:50:51,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:50:55,736 INFO L124 PetriNetUnfolderBase]: 11441/18933 cut-off events. [2023-08-25 06:50:55,737 INFO L125 PetriNetUnfolderBase]: For 340145/340145 co-relation queries the response was YES. [2023-08-25 06:50:55,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151597 conditions, 18933 events. 11441/18933 cut-off events. For 340145/340145 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 142481 event pairs, 958 based on Foata normal form. 24/18957 useless extension candidates. Maximal degree in co-relation 151544. Up to 13810 conditions per place. [2023-08-25 06:50:55,940 INFO L140 encePairwiseOnDemand]: 309/315 looper letters, 763 selfloop transitions, 257 changer transitions 7/1027 dead transitions. [2023-08-25 06:50:55,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 1027 transitions, 24452 flow [2023-08-25 06:50:55,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 06:50:55,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 06:50:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 979 transitions. [2023-08-25 06:50:55,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3884920634920635 [2023-08-25 06:50:55,942 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 979 transitions. [2023-08-25 06:50:55,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 979 transitions. [2023-08-25 06:50:55,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:50:55,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 979 transitions. [2023-08-25 06:50:55,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 122.375) internal successors, (979), 8 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:55,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:55,945 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:55,946 INFO L175 Difference]: Start difference. First operand has 128 places, 729 transitions, 16481 flow. Second operand 8 states and 979 transitions. [2023-08-25 06:50:55,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 1027 transitions, 24452 flow [2023-08-25 06:50:57,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 1027 transitions, 23513 flow, removed 391 selfloop flow, removed 3 redundant places. [2023-08-25 06:50:57,695 INFO L231 Difference]: Finished difference. Result has 135 places, 819 transitions, 18470 flow [2023-08-25 06:50:57,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=15644, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=18470, PETRI_PLACES=135, PETRI_TRANSITIONS=819} [2023-08-25 06:50:57,696 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 73 predicate places. [2023-08-25 06:50:57,696 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 819 transitions, 18470 flow [2023-08-25 06:50:57,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 116.77777777777777) internal successors, (1051), 9 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:57,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:50:57,697 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] [2023-08-25 06:50:57,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-25 06:50:57,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:50:57,902 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:50:57,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:50:57,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1560358491, now seen corresponding path program 1 times [2023-08-25 06:50:57,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:50:57,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668599789] [2023-08-25 06:50:57,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:57,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:50:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:58,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:58,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:50:58,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668599789] [2023-08-25 06:50:58,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668599789] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:50:58,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262738211] [2023-08-25 06:50:58,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:50:58,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:50:58,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:50:58,140 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:50:58,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 06:50:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:50:58,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 06:50:58,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:50:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:58,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:50:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:50:58,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262738211] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:50:58,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:50:58,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 8] total 14 [2023-08-25 06:50:58,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726943927] [2023-08-25 06:50:58,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:50:58,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-25 06:50:58,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:50:58,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-25 06:50:58,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-08-25 06:50:58,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 315 [2023-08-25 06:50:58,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 819 transitions, 18470 flow. Second operand has 15 states, 15 states have (on average 114.6) internal successors, (1719), 15 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:50:58,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:50:58,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 315 [2023-08-25 06:50:58,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:51:06,863 INFO L124 PetriNetUnfolderBase]: 15443/25441 cut-off events. [2023-08-25 06:51:06,863 INFO L125 PetriNetUnfolderBase]: For 470641/470641 co-relation queries the response was YES. [2023-08-25 06:51:07,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205779 conditions, 25441 events. 15443/25441 cut-off events. For 470641/470641 co-relation queries the response was YES. Maximal size of possible extension queue 1499. Compared 200056 event pairs, 333 based on Foata normal form. 294/25735 useless extension candidates. Maximal degree in co-relation 205724. Up to 5349 conditions per place. [2023-08-25 06:51:07,251 INFO L140 encePairwiseOnDemand]: 304/315 looper letters, 591 selfloop transitions, 1710 changer transitions 1/2302 dead transitions. [2023-08-25 06:51:07,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 2302 transitions, 50162 flow [2023-08-25 06:51:07,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-08-25 06:51:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2023-08-25 06:51:07,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 6445 transitions. [2023-08-25 06:51:07,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3860437256663672 [2023-08-25 06:51:07,261 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 6445 transitions. [2023-08-25 06:51:07,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 6445 transitions. [2023-08-25 06:51:07,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:51:07,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 6445 transitions. [2023-08-25 06:51:07,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 121.60377358490567) internal successors, (6445), 53 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:07,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 315.0) internal successors, (17010), 54 states have internal predecessors, (17010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:07,286 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 315.0) internal successors, (17010), 54 states have internal predecessors, (17010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:07,287 INFO L175 Difference]: Start difference. First operand has 135 places, 819 transitions, 18470 flow. Second operand 53 states and 6445 transitions. [2023-08-25 06:51:07,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 2302 transitions, 50162 flow [2023-08-25 06:51:10,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 2302 transitions, 49544 flow, removed 300 selfloop flow, removed 1 redundant places. [2023-08-25 06:51:11,009 INFO L231 Difference]: Finished difference. Result has 218 places, 1957 transitions, 48382 flow [2023-08-25 06:51:11,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=18184, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=720, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=48382, PETRI_PLACES=218, PETRI_TRANSITIONS=1957} [2023-08-25 06:51:11,010 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 156 predicate places. [2023-08-25 06:51:11,010 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 1957 transitions, 48382 flow [2023-08-25 06:51:11,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.6) internal successors, (1719), 15 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:11,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:51:11,011 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] [2023-08-25 06:51:11,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-25 06:51:11,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:51:11,212 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:51:11,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:51:11,212 INFO L85 PathProgramCache]: Analyzing trace with hash 834750303, now seen corresponding path program 2 times [2023-08-25 06:51:11,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:51:11,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691076877] [2023-08-25 06:51:11,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:51:11,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:51:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:51:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:51:11,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:51:11,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691076877] [2023-08-25 06:51:11,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691076877] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:51:11,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704556016] [2023-08-25 06:51:11,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 06:51:11,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:51:11,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:51:11,466 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:51:11,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-25 06:51:11,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 06:51:11,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:51:11,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-25 06:51:11,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:51:11,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:51:11,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:51:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:51:12,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704556016] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:51:12,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:51:12,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 8] total 17 [2023-08-25 06:51:12,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44309230] [2023-08-25 06:51:12,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:51:12,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 06:51:12,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:51:12,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 06:51:12,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-08-25 06:51:12,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 315 [2023-08-25 06:51:12,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 1957 transitions, 48382 flow. Second operand has 18 states, 18 states have (on average 114.33333333333333) internal successors, (2058), 18 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:12,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:51:12,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 315 [2023-08-25 06:51:12,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:51:33,819 INFO L124 PetriNetUnfolderBase]: 24962/40984 cut-off events. [2023-08-25 06:51:33,819 INFO L125 PetriNetUnfolderBase]: For 1230646/1230646 co-relation queries the response was YES. [2023-08-25 06:51:34,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403343 conditions, 40984 events. 24962/40984 cut-off events. For 1230646/1230646 co-relation queries the response was YES. Maximal size of possible extension queue 2237. Compared 340414 event pairs, 497 based on Foata normal form. 838/41822 useless extension candidates. Maximal degree in co-relation 403256. Up to 8877 conditions per place. [2023-08-25 06:51:34,534 INFO L140 encePairwiseOnDemand]: 304/315 looper letters, 1348 selfloop transitions, 3050 changer transitions 2/4400 dead transitions. [2023-08-25 06:51:34,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 4400 transitions, 111879 flow [2023-08-25 06:51:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-08-25 06:51:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-08-25 06:51:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 6029 transitions. [2023-08-25 06:51:34,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3906057661159702 [2023-08-25 06:51:34,542 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 6029 transitions. [2023-08-25 06:51:34,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 6029 transitions. [2023-08-25 06:51:34,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:51:34,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 6029 transitions. [2023-08-25 06:51:34,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 123.04081632653062) internal successors, (6029), 49 states have internal predecessors, (6029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:34,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 315.0) internal successors, (15750), 50 states have internal predecessors, (15750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:34,563 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 315.0) internal successors, (15750), 50 states have internal predecessors, (15750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:34,564 INFO L175 Difference]: Start difference. First operand has 218 places, 1957 transitions, 48382 flow. Second operand 49 states and 6029 transitions. [2023-08-25 06:51:34,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 4400 transitions, 111879 flow [2023-08-25 06:51:58,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 4400 transitions, 108540 flow, removed 1660 selfloop flow, removed 2 redundant places. [2023-08-25 06:51:58,145 INFO L231 Difference]: Finished difference. Result has 306 places, 3809 transitions, 103340 flow [2023-08-25 06:51:58,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=46105, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1395, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=103340, PETRI_PLACES=306, PETRI_TRANSITIONS=3809} [2023-08-25 06:51:58,147 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 244 predicate places. [2023-08-25 06:51:58,147 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 3809 transitions, 103340 flow [2023-08-25 06:51:58,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 114.33333333333333) internal successors, (2058), 18 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:58,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:51:58,147 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] [2023-08-25 06:51:58,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-08-25 06:51:58,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:51:58,355 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:51:58,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:51:58,355 INFO L85 PathProgramCache]: Analyzing trace with hash -499876661, now seen corresponding path program 3 times [2023-08-25 06:51:58,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:51:58,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81018039] [2023-08-25 06:51:58,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:51:58,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:51:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:51:58,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:51:58,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:51:58,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81018039] [2023-08-25 06:51:58,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81018039] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:51:58,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296016684] [2023-08-25 06:51:58,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 06:51:58,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:51:58,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:51:58,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:51:58,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-25 06:51:58,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 06:51:58,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:51:58,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 15 conjunts are in the unsatisfiable core [2023-08-25 06:51:58,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:51:58,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:51:58,928 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:51:59,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:51:59,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296016684] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:51:59,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:51:59,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 9] total 18 [2023-08-25 06:51:59,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768222001] [2023-08-25 06:51:59,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:51:59,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-25 06:51:59,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:51:59,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-25 06:51:59,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2023-08-25 06:51:59,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 315 [2023-08-25 06:51:59,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 3809 transitions, 103340 flow. Second operand has 19 states, 19 states have (on average 114.3157894736842) internal successors, (2172), 19 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:51:59,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:51:59,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 315 [2023-08-25 06:51:59,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:53:13,730 INFO L124 PetriNetUnfolderBase]: 46742/77345 cut-off events. [2023-08-25 06:53:13,730 INFO L125 PetriNetUnfolderBase]: For 3179098/3179098 co-relation queries the response was YES. [2023-08-25 06:53:16,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872019 conditions, 77345 events. 46742/77345 cut-off events. For 3179098/3179098 co-relation queries the response was YES. Maximal size of possible extension queue 4457. Compared 709152 event pairs, 785 based on Foata normal form. 1608/78953 useless extension candidates. Maximal degree in co-relation 871891. Up to 16729 conditions per place. [2023-08-25 06:53:16,615 INFO L140 encePairwiseOnDemand]: 303/315 looper letters, 2121 selfloop transitions, 6952 changer transitions 9/9082 dead transitions. [2023-08-25 06:53:16,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 9082 transitions, 260253 flow [2023-08-25 06:53:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-08-25 06:53:16,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2023-08-25 06:53:16,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 12718 transitions. [2023-08-25 06:53:16,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38452003023431597 [2023-08-25 06:53:16,630 INFO L72 ComplementDD]: Start complementDD. Operand 105 states and 12718 transitions. [2023-08-25 06:53:16,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 12718 transitions. [2023-08-25 06:53:16,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:53:16,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 105 states and 12718 transitions. [2023-08-25 06:53:16,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 106 states, 105 states have (on average 121.12380952380953) internal successors, (12718), 105 states have internal predecessors, (12718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:53:16,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 106 states, 106 states have (on average 315.0) internal successors, (33390), 106 states have internal predecessors, (33390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:53:16,683 INFO L81 ComplementDD]: Finished complementDD. Result has 106 states, 106 states have (on average 315.0) internal successors, (33390), 106 states have internal predecessors, (33390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:53:16,684 INFO L175 Difference]: Start difference. First operand has 306 places, 3809 transitions, 103340 flow. Second operand 105 states and 12718 transitions. [2023-08-25 06:53:16,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 9082 transitions, 260253 flow [2023-08-25 06:56:32,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 9082 transitions, 249993 flow, removed 4254 selfloop flow, removed 3 redundant places. [2023-08-25 06:56:32,726 INFO L231 Difference]: Finished difference. Result has 473 places, 7887 transitions, 233947 flow [2023-08-25 06:56:32,729 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=96486, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3740, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3049, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=105, PETRI_FLOW=233947, PETRI_PLACES=473, PETRI_TRANSITIONS=7887} [2023-08-25 06:56:32,729 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 411 predicate places. [2023-08-25 06:56:32,729 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 7887 transitions, 233947 flow [2023-08-25 06:56:32,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 114.3157894736842) internal successors, (2172), 19 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:56:32,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:56:32,730 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] [2023-08-25 06:56:32,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 06:56:32,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-08-25 06:56:32,930 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-08-25 06:56:32,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:56:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash -585181183, now seen corresponding path program 4 times [2023-08-25 06:56:32,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:56:32,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699805625] [2023-08-25 06:56:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:56:32,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:56:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:56:33,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:56:33,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:56:33,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699805625] [2023-08-25 06:56:33,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699805625] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:56:33,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609124320] [2023-08-25 06:56:33,130 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 06:56:33,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:56:33,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:56:33,131 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:56:33,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-25 06:56:33,273 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 06:56:33,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:56:33,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-25 06:56:33,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:56:33,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:56:33,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:56:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:56:33,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609124320] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:56:33,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:56:33,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 8] total 15 [2023-08-25 06:56:33,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912956260] [2023-08-25 06:56:33,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:56:33,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-08-25 06:56:33,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:56:33,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-08-25 06:56:33,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-08-25 06:56:33,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 315 [2023-08-25 06:56:33,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 7887 transitions, 233947 flow. Second operand has 16 states, 16 states have (on average 114.5) internal successors, (1832), 16 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:56:33,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:56:33,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 315 [2023-08-25 06:56:33,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:01:59,808 INFO L124 PetriNetUnfolderBase]: 75387/125607 cut-off events. [2023-08-25 07:01:59,808 INFO L125 PetriNetUnfolderBase]: For 6578035/6578035 co-relation queries the response was YES. [2023-08-25 07:02:06,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1546540 conditions, 125607 events. 75387/125607 cut-off events. For 6578035/6578035 co-relation queries the response was YES. Maximal size of possible extension queue 7147. Compared 1227415 event pairs, 999 based on Foata normal form. 1774/127381 useless extension candidates. Maximal degree in co-relation 1546349. Up to 23883 conditions per place. [2023-08-25 07:02:06,992 INFO L140 encePairwiseOnDemand]: 304/315 looper letters, 2884 selfloop transitions, 12451 changer transitions 5/15340 dead transitions. [2023-08-25 07:02:06,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 15340 transitions, 483011 flow [2023-08-25 07:02:06,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-08-25 07:02:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2023-08-25 07:02:07,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 11291 transitions. [2023-08-25 07:02:07,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3854241338112306 [2023-08-25 07:02:07,005 INFO L72 ComplementDD]: Start complementDD. Operand 93 states and 11291 transitions. [2023-08-25 07:02:07,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 11291 transitions. [2023-08-25 07:02:07,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:02:07,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 93 states and 11291 transitions. [2023-08-25 07:02:07,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 94 states, 93 states have (on average 121.40860215053763) internal successors, (11291), 93 states have internal predecessors, (11291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:02:07,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 94 states, 94 states have (on average 315.0) internal successors, (29610), 94 states have internal predecessors, (29610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:02:07,045 INFO L81 ComplementDD]: Finished complementDD. Result has 94 states, 94 states have (on average 315.0) internal successors, (29610), 94 states have internal predecessors, (29610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:02:07,045 INFO L175 Difference]: Start difference. First operand has 473 places, 7887 transitions, 233947 flow. Second operand 93 states and 11291 transitions. [2023-08-25 07:02:07,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 15340 transitions, 483011 flow Received shutdown request... [2023-08-25 07:03:40,432 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 07:03:40,432 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 07:03:40,670 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (58 of 59 remaining) [2023-08-25 07:03:40,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-25 07:03:40,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-08-25 07:03:40,871 WARN L619 AbstractCegarLoop]: Verification canceled: while executing RemoveRedundantFlow. [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (52 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2023-08-25 07:03:40,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2023-08-25 07:03:40,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2023-08-25 07:03:40,875 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2023-08-25 07:03:40,875 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2023-08-25 07:03:40,875 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2023-08-25 07:03:40,875 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2023-08-25 07:03:40,875 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2023-08-25 07:03:40,875 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2023-08-25 07:03:40,875 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2023-08-25 07:03:40,875 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2023-08-25 07:03:40,876 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2023-08-25 07:03:40,876 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 59 remaining) [2023-08-25 07:03:40,876 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 59 remaining) [2023-08-25 07:03:40,876 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2023-08-25 07:03:40,876 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (22 of 59 remaining) [2023-08-25 07:03:40,876 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2023-08-25 07:03:40,876 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2023-08-25 07:03:40,876 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2023-08-25 07:03:40,876 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2023-08-25 07:03:40,877 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2023-08-25 07:03:40,877 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2023-08-25 07:03:40,877 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2023-08-25 07:03:40,877 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2023-08-25 07:03:40,877 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2023-08-25 07:03:40,877 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2023-08-25 07:03:40,877 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2023-08-25 07:03:40,878 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2023-08-25 07:03:40,879 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2023-08-25 07:03:40,879 INFO L445 BasicCegarLoop]: Path program histogram: [10, 4, 3, 3, 2, 1, 1] [2023-08-25 07:03:40,884 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:03:40,884 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:03:40,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:03:40 BasicIcfg [2023-08-25 07:03:40,886 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:03:40,887 INFO L158 Benchmark]: Toolchain (without parser) took 808228.53ms. Allocated memory was 404.8MB in the beginning and 10.6GB in the end (delta: 10.2GB). Free memory was 360.5MB in the beginning and 4.9GB in the end (delta: -4.5GB). Peak memory consumption was 9.8GB. Max. memory is 16.0GB. [2023-08-25 07:03:40,887 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 404.8MB. Free memory was 381.9MB in the beginning and 381.8MB in the end (delta: 86.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:03:40,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.74ms. Allocated memory is still 404.8MB. Free memory was 360.5MB in the beginning and 349.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 07:03:40,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.11ms. Allocated memory is still 404.8MB. Free memory was 349.0MB in the beginning and 346.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:03:40,887 INFO L158 Benchmark]: Boogie Preprocessor took 26.64ms. Allocated memory is still 404.8MB. Free memory was 346.9MB in the beginning and 344.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:03:40,888 INFO L158 Benchmark]: RCFGBuilder took 699.53ms. Allocated memory is still 404.8MB. Free memory was 344.8MB in the beginning and 311.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 07:03:40,888 INFO L158 Benchmark]: TraceAbstraction took 807263.74ms. Allocated memory was 404.8MB in the beginning and 10.6GB in the end (delta: 10.2GB). Free memory was 310.2MB in the beginning and 4.9GB in the end (delta: -4.6GB). Peak memory consumption was 9.7GB. Max. memory is 16.0GB. [2023-08-25 07:03:40,892 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 404.8MB. Free memory was 381.9MB in the beginning and 381.8MB in the end (delta: 86.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 198.74ms. Allocated memory is still 404.8MB. Free memory was 360.5MB in the beginning and 349.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 33.11ms. Allocated memory is still 404.8MB. Free memory was 349.0MB in the beginning and 346.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.64ms. Allocated memory is still 404.8MB. Free memory was 346.9MB in the beginning and 344.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 699.53ms. Allocated memory is still 404.8MB. Free memory was 344.8MB in the beginning and 311.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * TraceAbstraction took 807263.74ms. Allocated memory was 404.8MB in the beginning and 10.6GB in the end (delta: 10.2GB). Free memory was 310.2MB in the beginning and 4.9GB in the end (delta: -4.6GB). Peak memory consumption was 9.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 151 PlacesBefore, 62 PlacesAfterwards, 148 TransitionsBefore, 55 TransitionsAfterwards, 3712 CoEnabledTransitionPairs, 7 FixpointIterations, 74 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 8 ConcurrentYvCompositions, 4 ChoiceCompositions, 153 TotalNumberOfCompositions, 5936 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4207, independent: 4147, independent conditional: 0, independent unconditional: 4147, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1585, independent: 1578, independent conditional: 0, independent unconditional: 1578, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4207, independent: 2569, independent conditional: 0, independent unconditional: 2569, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 1585, unknown conditional: 0, unknown unconditional: 1585] , Statistics on independence cache: Total cache size (in pairs): 186, Positive cache size: 180, Positive conditional cache size: 0, Positive unconditional cache size: 180, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 42]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 47]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 47]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 47]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 101]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 203 locations, 59 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: 807.1s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 790.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2810 SdHoareTripleChecker+Valid, 10.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2810 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 486 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10302 IncrementalHoareTripleChecker+Invalid, 10788 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 486 mSolverCounterUnsat, 0 mSDtfsCounter, 10302 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 740 GetRequests, 313 SyntacticMatches, 4 SemanticMatches, 423 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10065 ImplicationChecksByTransitivity, 11.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233947occurred in iteration=23, InterpolantAutomatonStates: 325, 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: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 648 NumberOfCodeBlocks, 648 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 792 ConstructedInterpolants, 0 QuantifiedInterpolants, 7552 SizeOfPredicates, 76 NumberOfNonLiveVariables, 1860 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 42 InterpolantComputations, 17 PerfectInterpolantSequences, 21/58 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown