./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:56:24,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:56:24,604 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:56:24,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:56:24,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:56:24,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:56:24,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:56:24,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:56:24,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:56:24,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:56:24,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:56:24,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:56:24,650 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:56:24,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:56:24,650 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:56:24,650 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:56:24,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:56:24,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:56:24,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:56:24,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:56:24,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:56:24,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:56:24,657 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:56:24,657 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:56:24,657 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:56:24,657 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:56:24,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:56:24,658 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:56:24,658 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:56:24,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:56:24,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:56:24,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:56:24,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:56:24,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:56:24,660 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:56:24,660 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:56:24,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:56:24,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:56:24,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:56:24,661 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:56:24,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:56:24,662 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 [2024-11-09 06:56:25,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:56:25,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:56:25,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:56:25,037 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:56:25,037 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:56:25,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2024-11-09 06:56:26,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:56:26,786 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:56:26,787 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2024-11-09 06:56:26,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a24b322b/a058d4b5bfee48e7a05fed88155c4c12/FLAG9c072dd62 [2024-11-09 06:56:27,104 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a24b322b/a058d4b5bfee48e7a05fed88155c4c12 [2024-11-09 06:56:27,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:56:27,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:56:27,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:27,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:56:27,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:56:27,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e8b881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27, skipping insertion in model container [2024-11-09 06:56:27,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:56:27,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:27,627 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:56:27,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:56:27,739 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:56:27,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27 WrapperNode [2024-11-09 06:56:27,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:56:27,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:27,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:56:27,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:56:27,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,800 INFO L138 Inliner]: procedures = 171, calls = 44, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 210 [2024-11-09 06:56:27,801 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:56:27,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:56:27,802 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:56:27,802 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:56:27,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:56:27,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:56:27,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:56:27,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:56:27,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (1/1) ... [2024-11-09 06:56:27,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:56:27,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:27,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:56:27,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:56:27,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:56:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:56:27,975 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:56:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:56:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:56:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:56:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:56:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:56:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:56:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:56:27,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:56:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:56:27,978 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:56:28,187 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:56:28,191 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:56:28,582 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:56:28,582 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:56:28,646 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:56:28,648 INFO L316 CfgBuilder]: Removed 18 assume(true) statements. [2024-11-09 06:56:28,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:28 BoogieIcfgContainer [2024-11-09 06:56:28,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:56:28,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:56:28,651 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:56:28,655 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:56:28,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:56:27" (1/3) ... [2024-11-09 06:56:28,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ceeada3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:28, skipping insertion in model container [2024-11-09 06:56:28,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:56:27" (2/3) ... [2024-11-09 06:56:28,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ceeada3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:56:28, skipping insertion in model container [2024-11-09 06:56:28,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:56:28" (3/3) ... [2024-11-09 06:56:28,660 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_60-invariant_racefree.i [2024-11-09 06:56:28,676 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:56:28,677 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-09 06:56:28,677 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:56:28,768 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:56:28,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 210 transitions, 427 flow [2024-11-09 06:56:28,936 INFO L124 PetriNetUnfolderBase]: 36/309 cut-off events. [2024-11-09 06:56:28,936 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:56:28,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 309 events. 36/309 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1292 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 179. Up to 6 conditions per place. [2024-11-09 06:56:28,948 INFO L82 GeneralOperation]: Start removeDead. Operand has 189 places, 210 transitions, 427 flow [2024-11-09 06:56:28,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 210 transitions, 427 flow [2024-11-09 06:56:28,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:28,981 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ca79003, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:28,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-09 06:56:29,001 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:29,001 INFO L124 PetriNetUnfolderBase]: 4/58 cut-off events. [2024-11-09 06:56:29,001 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:29,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:29,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:29,003 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:29,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:29,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1643993819, now seen corresponding path program 1 times [2024-11-09 06:56:29,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:29,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613193459] [2024-11-09 06:56:29,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:29,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:29,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:29,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613193459] [2024-11-09 06:56:29,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613193459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:29,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:29,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:29,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510160388] [2024-11-09 06:56:29,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:29,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:56:29,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:29,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:56:29,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:56:29,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 210 [2024-11-09 06:56:29,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 210 transitions, 427 flow. Second operand has 2 states, 2 states have (on average 168.5) internal successors, (337), 2 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:29,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:29,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 210 [2024-11-09 06:56:29,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:29,590 INFO L124 PetriNetUnfolderBase]: 82/853 cut-off events. [2024-11-09 06:56:29,591 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 06:56:29,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 853 events. 82/853 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5123 event pairs, 72 based on Foata normal form. 153/900 useless extension candidates. Maximal degree in co-relation 898. Up to 172 conditions per place. [2024-11-09 06:56:29,605 INFO L140 encePairwiseOnDemand]: 188/210 looper letters, 19 selfloop transitions, 0 changer transitions 0/184 dead transitions. [2024-11-09 06:56:29,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 184 transitions, 413 flow [2024-11-09 06:56:29,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:56:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:56:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 375 transitions. [2024-11-09 06:56:29,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2024-11-09 06:56:29,626 INFO L175 Difference]: Start difference. First operand has 189 places, 210 transitions, 427 flow. Second operand 2 states and 375 transitions. [2024-11-09 06:56:29,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 184 transitions, 413 flow [2024-11-09 06:56:29,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 184 transitions, 413 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:29,637 INFO L231 Difference]: Finished difference. Result has 186 places, 184 transitions, 375 flow [2024-11-09 06:56:29,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=375, PETRI_PLACES=186, PETRI_TRANSITIONS=184} [2024-11-09 06:56:29,646 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, -3 predicate places. [2024-11-09 06:56:29,646 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 184 transitions, 375 flow [2024-11-09 06:56:29,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 168.5) internal successors, (337), 2 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:29,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:29,647 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:29,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:56:29,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:29,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:29,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1641143443, now seen corresponding path program 1 times [2024-11-09 06:56:29,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:29,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336609809] [2024-11-09 06:56:29,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:29,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:29,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:29,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336609809] [2024-11-09 06:56:29,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336609809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:29,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:29,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:29,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408051606] [2024-11-09 06:56:29,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:29,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:29,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:29,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:29,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:29,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 210 [2024-11-09 06:56:29,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 184 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:29,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:29,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 210 [2024-11-09 06:56:29,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:30,054 INFO L124 PetriNetUnfolderBase]: 110/1056 cut-off events. [2024-11-09 06:56:30,054 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 06:56:30,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 1056 events. 110/1056 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6685 event pairs, 88 based on Foata normal form. 1/941 useless extension candidates. Maximal degree in co-relation 1301. Up to 232 conditions per place. [2024-11-09 06:56:30,084 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 32 selfloop transitions, 2 changer transitions 0/193 dead transitions. [2024-11-09 06:56:30,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 193 transitions, 461 flow [2024-11-09 06:56:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:30,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:30,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-09 06:56:30,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2024-11-09 06:56:30,093 INFO L175 Difference]: Start difference. First operand has 186 places, 184 transitions, 375 flow. Second operand 3 states and 518 transitions. [2024-11-09 06:56:30,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 193 transitions, 461 flow [2024-11-09 06:56:30,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 193 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:30,101 INFO L231 Difference]: Finished difference. Result has 189 places, 184 transitions, 383 flow [2024-11-09 06:56:30,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=189, PETRI_TRANSITIONS=184} [2024-11-09 06:56:30,105 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 0 predicate places. [2024-11-09 06:56:30,105 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 184 transitions, 383 flow [2024-11-09 06:56:30,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:30,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:30,106 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:30,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:56:30,106 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:30,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:30,108 INFO L85 PathProgramCache]: Analyzing trace with hash 224006694, now seen corresponding path program 1 times [2024-11-09 06:56:30,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:30,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415254892] [2024-11-09 06:56:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:30,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:30,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415254892] [2024-11-09 06:56:30,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415254892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:30,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:30,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:30,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074673119] [2024-11-09 06:56:30,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:30,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:56:30,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:30,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:56:30,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:30,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 210 [2024-11-09 06:56:30,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 184 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:30,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:30,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 210 [2024-11-09 06:56:30,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:31,140 INFO L124 PetriNetUnfolderBase]: 202/1301 cut-off events. [2024-11-09 06:56:31,140 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-09 06:56:31,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1777 conditions, 1301 events. 202/1301 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9029 event pairs, 136 based on Foata normal form. 0/1180 useless extension candidates. Maximal degree in co-relation 1771. Up to 335 conditions per place. [2024-11-09 06:56:31,149 INFO L140 encePairwiseOnDemand]: 204/210 looper letters, 67 selfloop transitions, 5 changer transitions 0/219 dead transitions. [2024-11-09 06:56:31,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 219 transitions, 597 flow [2024-11-09 06:56:31,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:31,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:56:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 967 transitions. [2024-11-09 06:56:31,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7674603174603175 [2024-11-09 06:56:31,152 INFO L175 Difference]: Start difference. First operand has 189 places, 184 transitions, 383 flow. Second operand 6 states and 967 transitions. [2024-11-09 06:56:31,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 219 transitions, 597 flow [2024-11-09 06:56:31,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 219 transitions, 593 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:31,158 INFO L231 Difference]: Finished difference. Result has 191 places, 183 transitions, 387 flow [2024-11-09 06:56:31,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=191, PETRI_TRANSITIONS=183} [2024-11-09 06:56:31,161 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 2 predicate places. [2024-11-09 06:56:31,161 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 183 transitions, 387 flow [2024-11-09 06:56:31,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:31,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:31,163 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:31,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:56:31,164 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:31,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:31,165 INFO L85 PathProgramCache]: Analyzing trace with hash -336056165, now seen corresponding path program 1 times [2024-11-09 06:56:31,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:31,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819398269] [2024-11-09 06:56:31,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:31,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:31,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:31,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:31,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819398269] [2024-11-09 06:56:31,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819398269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:31,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:31,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:31,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383203154] [2024-11-09 06:56:31,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:31,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:31,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:31,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:31,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:31,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 210 [2024-11-09 06:56:31,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 183 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:31,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:31,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 210 [2024-11-09 06:56:31,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:31,615 INFO L124 PetriNetUnfolderBase]: 442/2623 cut-off events. [2024-11-09 06:56:31,616 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-09 06:56:31,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3616 conditions, 2623 events. 442/2623 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 21163 event pairs, 177 based on Foata normal form. 0/2379 useless extension candidates. Maximal degree in co-relation 3610. Up to 608 conditions per place. [2024-11-09 06:56:31,632 INFO L140 encePairwiseOnDemand]: 185/210 looper letters, 62 selfloop transitions, 18 changer transitions 0/219 dead transitions. [2024-11-09 06:56:31,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 219 transitions, 622 flow [2024-11-09 06:56:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:31,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:31,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2024-11-09 06:56:31,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8142857142857143 [2024-11-09 06:56:31,635 INFO L175 Difference]: Start difference. First operand has 191 places, 183 transitions, 387 flow. Second operand 3 states and 513 transitions. [2024-11-09 06:56:31,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 219 transitions, 622 flow [2024-11-09 06:56:31,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 219 transitions, 612 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:56:31,640 INFO L231 Difference]: Finished difference. Result has 190 places, 201 transitions, 535 flow [2024-11-09 06:56:31,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=190, PETRI_TRANSITIONS=201} [2024-11-09 06:56:31,642 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 1 predicate places. [2024-11-09 06:56:31,642 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 201 transitions, 535 flow [2024-11-09 06:56:31,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:31,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:31,643 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:31,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:56:31,643 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:56:31,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:31,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1779233426, now seen corresponding path program 1 times [2024-11-09 06:56:31,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:31,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678582262] [2024-11-09 06:56:31,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:31,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:31,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:56:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:56:31,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:56:31,701 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:56:31,702 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-09 06:56:31,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-09 06:56:31,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-09 06:56:31,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-09 06:56:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-09 06:56:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-09 06:56:31,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-09 06:56:31,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-09 06:56:31,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-09 06:56:31,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-09 06:56:31,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-09 06:56:31,706 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-09 06:56:31,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-09 06:56:31,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-09 06:56:31,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-09 06:56:31,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-09 06:56:31,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-09 06:56:31,707 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-09 06:56:31,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-09 06:56:31,708 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-09 06:56:31,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:56:31,708 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 06:56:31,713 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:56:31,713 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 06:56:31,755 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 06:56:31,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 258 places, 289 transitions, 594 flow [2024-11-09 06:56:31,852 INFO L124 PetriNetUnfolderBase]: 62/515 cut-off events. [2024-11-09 06:56:31,852 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 06:56:31,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 515 events. 62/515 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2378 event pairs, 0 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 311. Up to 9 conditions per place. [2024-11-09 06:56:31,858 INFO L82 GeneralOperation]: Start removeDead. Operand has 258 places, 289 transitions, 594 flow [2024-11-09 06:56:31,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 258 places, 289 transitions, 594 flow [2024-11-09 06:56:31,868 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:56:31,873 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ca79003, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:56:31,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-09 06:56:31,880 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:56:31,881 INFO L124 PetriNetUnfolderBase]: 4/58 cut-off events. [2024-11-09 06:56:31,881 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:56:31,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:31,881 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:31,882 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 06:56:31,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:31,883 INFO L85 PathProgramCache]: Analyzing trace with hash -2058564795, now seen corresponding path program 1 times [2024-11-09 06:56:31,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:31,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995054501] [2024-11-09 06:56:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:31,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:31,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995054501] [2024-11-09 06:56:31,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995054501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:31,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:31,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:31,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339753954] [2024-11-09 06:56:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:31,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:56:31,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:56:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:56:31,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 289 [2024-11-09 06:56:31,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 289 transitions, 594 flow. Second operand has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:31,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:31,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 289 [2024-11-09 06:56:31,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:33,182 INFO L124 PetriNetUnfolderBase]: 1733/9097 cut-off events. [2024-11-09 06:56:33,183 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-09 06:56:33,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11797 conditions, 9097 events. 1733/9097 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 100917 event pairs, 1620 based on Foata normal form. 2258/10244 useless extension candidates. Maximal degree in co-relation 10589. Up to 2642 conditions per place. [2024-11-09 06:56:33,319 INFO L140 encePairwiseOnDemand]: 257/289 looper letters, 30 selfloop transitions, 0 changer transitions 0/251 dead transitions. [2024-11-09 06:56:33,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 251 transitions, 578 flow [2024-11-09 06:56:33,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:56:33,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:56:33,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 510 transitions. [2024-11-09 06:56:33,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2024-11-09 06:56:33,322 INFO L175 Difference]: Start difference. First operand has 258 places, 289 transitions, 594 flow. Second operand 2 states and 510 transitions. [2024-11-09 06:56:33,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 251 transitions, 578 flow [2024-11-09 06:56:33,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 251 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:33,331 INFO L231 Difference]: Finished difference. Result has 253 places, 251 transitions, 518 flow [2024-11-09 06:56:33,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=518, PETRI_PLACES=253, PETRI_TRANSITIONS=251} [2024-11-09 06:56:33,334 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -5 predicate places. [2024-11-09 06:56:33,334 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 251 transitions, 518 flow [2024-11-09 06:56:33,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:33,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:33,336 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:33,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:56:33,336 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 06:56:33,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:33,337 INFO L85 PathProgramCache]: Analyzing trace with hash -2055714419, now seen corresponding path program 1 times [2024-11-09 06:56:33,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:33,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787526734] [2024-11-09 06:56:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:33,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:33,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:33,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:33,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787526734] [2024-11-09 06:56:33,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787526734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:33,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:33,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:33,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275554199] [2024-11-09 06:56:33,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:33,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:33,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:33,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:33,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:33,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 289 [2024-11-09 06:56:33,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 251 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:33,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:33,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 289 [2024-11-09 06:56:33,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:35,079 INFO L124 PetriNetUnfolderBase]: 2529/12797 cut-off events. [2024-11-09 06:56:35,080 INFO L125 PetriNetUnfolderBase]: For 107/107 co-relation queries the response was YES. [2024-11-09 06:56:35,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16706 conditions, 12797 events. 2529/12797 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 150315 event pairs, 1098 based on Foata normal form. 1/11369 useless extension candidates. Maximal degree in co-relation 16701. Up to 3840 conditions per place. [2024-11-09 06:56:35,179 INFO L140 encePairwiseOnDemand]: 286/289 looper letters, 44 selfloop transitions, 2 changer transitions 0/261 dead transitions. [2024-11-09 06:56:35,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 261 transitions, 630 flow [2024-11-09 06:56:35,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:35,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2024-11-09 06:56:35,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8085351787773933 [2024-11-09 06:56:35,183 INFO L175 Difference]: Start difference. First operand has 253 places, 251 transitions, 518 flow. Second operand 3 states and 701 transitions. [2024-11-09 06:56:35,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 261 transitions, 630 flow [2024-11-09 06:56:35,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 261 transitions, 630 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:56:35,188 INFO L231 Difference]: Finished difference. Result has 256 places, 252 transitions, 530 flow [2024-11-09 06:56:35,189 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=256, PETRI_TRANSITIONS=252} [2024-11-09 06:56:35,190 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -2 predicate places. [2024-11-09 06:56:35,190 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 252 transitions, 530 flow [2024-11-09 06:56:35,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:35,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:35,191 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:35,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:56:35,192 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 06:56:35,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:35,192 INFO L85 PathProgramCache]: Analyzing trace with hash 257208615, now seen corresponding path program 1 times [2024-11-09 06:56:35,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:35,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972067465] [2024-11-09 06:56:35,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:35,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:35,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:35,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972067465] [2024-11-09 06:56:35,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972067465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:35,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:35,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:35,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071865995] [2024-11-09 06:56:35,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:35,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:56:35,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:35,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:56:35,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:35,645 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 289 [2024-11-09 06:56:35,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 252 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:35,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:35,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 289 [2024-11-09 06:56:35,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:37,948 INFO L124 PetriNetUnfolderBase]: 4384/17285 cut-off events. [2024-11-09 06:56:37,949 INFO L125 PetriNetUnfolderBase]: For 251/251 co-relation queries the response was YES. [2024-11-09 06:56:38,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24452 conditions, 17285 events. 4384/17285 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 204989 event pairs, 2104 based on Foata normal form. 0/15593 useless extension candidates. Maximal degree in co-relation 24445. Up to 5258 conditions per place. [2024-11-09 06:56:38,095 INFO L140 encePairwiseOnDemand]: 283/289 looper letters, 114 selfloop transitions, 6 changer transitions 0/323 dead transitions. [2024-11-09 06:56:38,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 323 transitions, 912 flow [2024-11-09 06:56:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:38,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:56:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1356 transitions. [2024-11-09 06:56:38,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7820069204152249 [2024-11-09 06:56:38,100 INFO L175 Difference]: Start difference. First operand has 256 places, 252 transitions, 530 flow. Second operand 6 states and 1356 transitions. [2024-11-09 06:56:38,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 323 transitions, 912 flow [2024-11-09 06:56:38,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 323 transitions, 910 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:56:38,108 INFO L231 Difference]: Finished difference. Result has 259 places, 251 transitions, 538 flow [2024-11-09 06:56:38,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=538, PETRI_PLACES=259, PETRI_TRANSITIONS=251} [2024-11-09 06:56:38,109 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, 1 predicate places. [2024-11-09 06:56:38,109 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 251 transitions, 538 flow [2024-11-09 06:56:38,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:38,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:38,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:38,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:56:38,111 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 06:56:38,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:38,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1088174321, now seen corresponding path program 1 times [2024-11-09 06:56:38,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:38,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605272917] [2024-11-09 06:56:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:38,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:38,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:38,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605272917] [2024-11-09 06:56:38,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605272917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:38,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:38,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:56:38,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712923873] [2024-11-09 06:56:38,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:38,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:38,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:38,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 289 [2024-11-09 06:56:38,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 251 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:38,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:38,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 289 [2024-11-09 06:56:38,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:46,272 INFO L124 PetriNetUnfolderBase]: 26162/85747 cut-off events. [2024-11-09 06:56:46,272 INFO L125 PetriNetUnfolderBase]: For 552/552 co-relation queries the response was YES. [2024-11-09 06:56:46,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128050 conditions, 85747 events. 26162/85747 cut-off events. For 552/552 co-relation queries the response was YES. Maximal size of possible extension queue 1629. Compared 1195118 event pairs, 10477 based on Foata normal form. 0/76865 useless extension candidates. Maximal degree in co-relation 128043. Up to 26496 conditions per place. [2024-11-09 06:56:46,861 INFO L140 encePairwiseOnDemand]: 250/289 looper letters, 98 selfloop transitions, 28 changer transitions 0/308 dead transitions. [2024-11-09 06:56:46,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 308 transitions, 915 flow [2024-11-09 06:56:46,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:46,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions. [2024-11-09 06:56:46,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.798154555940023 [2024-11-09 06:56:46,864 INFO L175 Difference]: Start difference. First operand has 259 places, 251 transitions, 538 flow. Second operand 3 states and 692 transitions. [2024-11-09 06:56:46,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 308 transitions, 915 flow [2024-11-09 06:56:46,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 308 transitions, 903 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 06:56:46,876 INFO L231 Difference]: Finished difference. Result has 258 places, 279 transitions, 772 flow [2024-11-09 06:56:46,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=772, PETRI_PLACES=258, PETRI_TRANSITIONS=279} [2024-11-09 06:56:46,878 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, 0 predicate places. [2024-11-09 06:56:46,880 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 279 transitions, 772 flow [2024-11-09 06:56:46,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:46,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:46,881 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:46,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:56:46,881 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 06:56:46,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:46,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1058884623, now seen corresponding path program 1 times [2024-11-09 06:56:46,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:46,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548553584] [2024-11-09 06:56:46,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:46,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:46,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:46,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:46,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548553584] [2024-11-09 06:56:46,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548553584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:46,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842381145] [2024-11-09 06:56:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:46,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:46,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:56:46,972 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) [2024-11-09 06:56:46,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:56:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:47,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:56:47,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:47,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:56:47,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:47,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842381145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:47,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:56:47,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-09 06:56:47,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648420208] [2024-11-09 06:56:47,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:47,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:47,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:47,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:47,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:47,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 289 [2024-11-09 06:56:47,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 279 transitions, 772 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:47,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:47,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 289 [2024-11-09 06:56:47,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:56:56,878 INFO L124 PetriNetUnfolderBase]: 27093/95640 cut-off events. [2024-11-09 06:56:56,878 INFO L125 PetriNetUnfolderBase]: For 29302/30568 co-relation queries the response was YES. [2024-11-09 06:56:57,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168012 conditions, 95640 events. 27093/95640 cut-off events. For 29302/30568 co-relation queries the response was YES. Maximal size of possible extension queue 1805. Compared 1384883 event pairs, 16434 based on Foata normal form. 292/86863 useless extension candidates. Maximal degree in co-relation 168004. Up to 36690 conditions per place. [2024-11-09 06:56:57,455 INFO L140 encePairwiseOnDemand]: 273/289 looper letters, 86 selfloop transitions, 28 changer transitions 0/323 dead transitions. [2024-11-09 06:56:57,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 323 transitions, 1160 flow [2024-11-09 06:56:57,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:56:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:56:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 689 transitions. [2024-11-09 06:56:57,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7946943483275664 [2024-11-09 06:56:57,458 INFO L175 Difference]: Start difference. First operand has 258 places, 279 transitions, 772 flow. Second operand 3 states and 689 transitions. [2024-11-09 06:56:57,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 323 transitions, 1160 flow [2024-11-09 06:56:57,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 323 transitions, 1080 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:56:57,606 INFO L231 Difference]: Finished difference. Result has 260 places, 305 transitions, 982 flow [2024-11-09 06:56:57,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=982, PETRI_PLACES=260, PETRI_TRANSITIONS=305} [2024-11-09 06:56:57,608 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, 2 predicate places. [2024-11-09 06:56:57,608 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 305 transitions, 982 flow [2024-11-09 06:56:57,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:56:57,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:56:57,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:57,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:57,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 06:56:57,814 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 06:56:57,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:57,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1908698949, now seen corresponding path program 1 times [2024-11-09 06:56:57,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:56:57,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227348872] [2024-11-09 06:56:57,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:57,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:56:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:57,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:57,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:56:57,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227348872] [2024-11-09 06:56:57,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227348872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:57,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:57,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:56:57,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759916261] [2024-11-09 06:56:57,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:57,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:56:57,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:56:57,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:56:57,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:56:57,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 289 [2024-11-09 06:56:57,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 305 transitions, 982 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 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) [2024-11-09 06:56:57,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:56:57,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 289 [2024-11-09 06:56:57,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:08,583 INFO L124 PetriNetUnfolderBase]: 27230/110035 cut-off events. [2024-11-09 06:57:08,583 INFO L125 PetriNetUnfolderBase]: For 15354/17874 co-relation queries the response was YES. [2024-11-09 06:57:08,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177276 conditions, 110035 events. 27230/110035 cut-off events. For 15354/17874 co-relation queries the response was YES. Maximal size of possible extension queue 2381. Compared 1713903 event pairs, 11631 based on Foata normal form. 281/97996 useless extension candidates. Maximal degree in co-relation 177267. Up to 20219 conditions per place. [2024-11-09 06:57:09,265 INFO L140 encePairwiseOnDemand]: 278/289 looper letters, 65 selfloop transitions, 9 changer transitions 0/336 dead transitions. [2024-11-09 06:57:09,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 336 transitions, 1194 flow [2024-11-09 06:57:09,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:57:09,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:57:09,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 715 transitions. [2024-11-09 06:57:09,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8246828143021915 [2024-11-09 06:57:09,268 INFO L175 Difference]: Start difference. First operand has 260 places, 305 transitions, 982 flow. Second operand 3 states and 715 transitions. [2024-11-09 06:57:09,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 336 transitions, 1194 flow [2024-11-09 06:57:09,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 336 transitions, 1138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:57:09,344 INFO L231 Difference]: Finished difference. Result has 261 places, 310 transitions, 986 flow [2024-11-09 06:57:09,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=986, PETRI_PLACES=261, PETRI_TRANSITIONS=310} [2024-11-09 06:57:09,349 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, 3 predicate places. [2024-11-09 06:57:09,349 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 310 transitions, 986 flow [2024-11-09 06:57:09,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 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) [2024-11-09 06:57:09,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:09,349 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:09,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:57:09,349 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 06:57:09,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:09,350 INFO L85 PathProgramCache]: Analyzing trace with hash 439729732, now seen corresponding path program 1 times [2024-11-09 06:57:09,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:09,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746473847] [2024-11-09 06:57:09,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:09,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:57:09,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:09,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746473847] [2024-11-09 06:57:09,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746473847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:09,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946416554] [2024-11-09 06:57:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:09,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:09,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:57:09,428 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) [2024-11-09 06:57:09,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:57:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:09,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:57:09,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:09,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:57:09,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:57:09,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946416554] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:57:09,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:57:09,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:57:09,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819173307] [2024-11-09 06:57:09,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:57:09,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:57:09,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:09,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:57:09,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:57:09,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 289 [2024-11-09 06:57:09,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 310 transitions, 986 flow. Second operand has 10 states, 10 states have (on average 217.4) internal successors, (2174), 10 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:57:09,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:09,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 289 [2024-11-09 06:57:09,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:57:09,886 INFO L124 PetriNetUnfolderBase]: 281/1256 cut-off events. [2024-11-09 06:57:09,886 INFO L125 PetriNetUnfolderBase]: For 93/99 co-relation queries the response was YES. [2024-11-09 06:57:09,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1924 conditions, 1256 events. 281/1256 cut-off events. For 93/99 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 9085 event pairs, 35 based on Foata normal form. 46/1261 useless extension candidates. Maximal degree in co-relation 1914. Up to 194 conditions per place. [2024-11-09 06:57:09,896 INFO L140 encePairwiseOnDemand]: 284/289 looper letters, 50 selfloop transitions, 7 changer transitions 0/136 dead transitions. [2024-11-09 06:57:09,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 136 transitions, 442 flow [2024-11-09 06:57:09,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:57:09,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:57:09,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1994 transitions. [2024-11-09 06:57:09,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7666282199154172 [2024-11-09 06:57:09,901 INFO L175 Difference]: Start difference. First operand has 261 places, 310 transitions, 986 flow. Second operand 9 states and 1994 transitions. [2024-11-09 06:57:09,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 136 transitions, 442 flow [2024-11-09 06:57:09,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 136 transitions, 428 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-09 06:57:09,904 INFO L231 Difference]: Finished difference. Result has 113 places, 98 transitions, 252 flow [2024-11-09 06:57:09,905 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=252, PETRI_PLACES=113, PETRI_TRANSITIONS=98} [2024-11-09 06:57:09,905 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -145 predicate places. [2024-11-09 06:57:09,905 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 98 transitions, 252 flow [2024-11-09 06:57:09,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 217.4) internal successors, (2174), 10 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:57:09,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:09,907 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:09,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:57:10,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 06:57:10,108 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 06:57:10,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash 279989366, now seen corresponding path program 1 times [2024-11-09 06:57:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:10,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047212540] [2024-11-09 06:57:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:10,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:57:10,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:57:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:57:10,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:57:10,149 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:57:10,149 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-09 06:57:10,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-09 06:57:10,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-09 06:57:10,150 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-09 06:57:10,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-09 06:57:10,152 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-09 06:57:10,152 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-09 06:57:10,152 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-09 06:57:10,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:57:10,152 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:10,153 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:57:10,153 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 06:57:10,186 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 06:57:10,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 368 transitions, 763 flow [2024-11-09 06:57:10,285 INFO L124 PetriNetUnfolderBase]: 93/766 cut-off events. [2024-11-09 06:57:10,285 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 06:57:10,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 766 events. 93/766 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3689 event pairs, 1 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 523. Up to 16 conditions per place. [2024-11-09 06:57:10,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 368 transitions, 763 flow [2024-11-09 06:57:10,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 368 transitions, 763 flow [2024-11-09 06:57:10,310 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:57:10,311 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ca79003, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:57:10,311 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-09 06:57:10,314 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:57:10,314 INFO L124 PetriNetUnfolderBase]: 4/58 cut-off events. [2024-11-09 06:57:10,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:57:10,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:57:10,315 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:10,315 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-09 06:57:10,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:10,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2081171131, now seen corresponding path program 1 times [2024-11-09 06:57:10,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:57:10,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322284420] [2024-11-09 06:57:10,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:10,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:57:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:57:10,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:57:10,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322284420] [2024-11-09 06:57:10,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322284420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:10,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:57:10,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:57:10,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681456634] [2024-11-09 06:57:10,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:10,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:57:10,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:57:10,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:57:10,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:57:10,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 368 [2024-11-09 06:57:10,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 368 transitions, 763 flow. Second operand has 2 states, 2 states have (on average 282.5) internal successors, (565), 2 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:57:10,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:57:10,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 368 [2024-11-09 06:57:10,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand