./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc 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_76-tricky_address3_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 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:54:51,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:54:51,406 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:54:51,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:54:51,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:54:51,445 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:54:51,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:54:51,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:54:51,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:54:51,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:54:51,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:54:51,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:54:51,450 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:54:51,450 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:54:51,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:54:51,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:54:51,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:54:51,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:54:51,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:54:51,454 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:54:51,454 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:54:51,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:54:51,455 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:54:51,459 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:54:51,460 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:54:51,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:54:51,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:54:51,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:54:51,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:54:51,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:54:51,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:54:51,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:54:51,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:54:51,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:54:51,462 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:54:51,462 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:54:51,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:54:51,463 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:54:51,464 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:54:51,464 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:54:51,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:54:51,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2024-11-19 05:54:51,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:54:51,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:54:51,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:54:51,786 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:54:51,787 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:54:51,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-11-19 05:54:53,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:54:53,633 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:54:53,638 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-11-19 05:54:53,658 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe647278/fd8649c77d774a18b4bd5f9a3eddd1b7/FLAG8b0400409 [2024-11-19 05:54:53,931 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe647278/fd8649c77d774a18b4bd5f9a3eddd1b7 [2024-11-19 05:54:53,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:54:53,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:54:53,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:54:53,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:54:53,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:54:53,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:54:53" (1/1) ... [2024-11-19 05:54:53,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722de916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:53, skipping insertion in model container [2024-11-19 05:54:53,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:54:53" (1/1) ... [2024-11-19 05:54:53,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:54:54,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:54:54,542 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:54:54,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:54:54,691 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:54:54,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54 WrapperNode [2024-11-19 05:54:54,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:54:54,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:54:54,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:54:54,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:54:54,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,789 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 348 [2024-11-19 05:54:54,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:54:54,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:54:54,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:54:54,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:54:54,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:54:54,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:54:54,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:54:54,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:54:54,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (1/1) ... [2024-11-19 05:54:54,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:54:54,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:54,896 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) [2024-11-19 05:54:54,900 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 [2024-11-19 05:54:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:54:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:54:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:54:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:54:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:54:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:54:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:54:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:54:54,953 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:54:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:54:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:54:54,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:54:54,955 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:54:55,118 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:54:55,124 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:54:55,792 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:54:55,792 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:54:55,843 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:54:55,843 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-19 05:54:55,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:54:55 BoogieIcfgContainer [2024-11-19 05:54:55,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:54:55,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:54:55,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:54:55,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:54:55,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:54:53" (1/3) ... [2024-11-19 05:54:55,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3467a7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:54:55, skipping insertion in model container [2024-11-19 05:54:55,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:54" (2/3) ... [2024-11-19 05:54:55,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3467a7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:54:55, skipping insertion in model container [2024-11-19 05:54:55,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:54:55" (3/3) ... [2024-11-19 05:54:55,854 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2024-11-19 05:54:55,870 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:54:55,871 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 05:54:55,871 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:54:55,968 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:54:56,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 354 transitions, 715 flow [2024-11-19 05:54:56,210 INFO L124 PetriNetUnfolderBase]: 48/483 cut-off events. [2024-11-19 05:54:56,210 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:54:56,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 483 events. 48/483 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1659 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2024-11-19 05:54:56,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 324 places, 354 transitions, 715 flow [2024-11-19 05:54:56,246 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 354 transitions, 715 flow [2024-11-19 05:54:56,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:56,269 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;@14c1a8fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:56,271 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-19 05:54:56,297 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:56,297 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-19 05:54:56,298 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:56,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:56,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:56,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:56,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:56,307 INFO L85 PathProgramCache]: Analyzing trace with hash 709230511, now seen corresponding path program 1 times [2024-11-19 05:54:56,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:56,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586501885] [2024-11-19 05:54:56,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:56,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:56,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:56,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586501885] [2024-11-19 05:54:56,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586501885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:56,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:56,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:56,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026649673] [2024-11-19 05:54:56,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:56,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:56,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:56,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:56,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:56,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 354 [2024-11-19 05:54:56,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 354 transitions, 715 flow. Second operand has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:56,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:56,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 354 [2024-11-19 05:54:56,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:57,240 INFO L124 PetriNetUnfolderBase]: 85/1310 cut-off events. [2024-11-19 05:54:57,240 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:54:57,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1494 conditions, 1310 events. 85/1310 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8317 event pairs, 72 based on Foata normal form. 205/1399 useless extension candidates. Maximal degree in co-relation 1250. Up to 178 conditions per place. [2024-11-19 05:54:57,254 INFO L140 encePairwiseOnDemand]: 322/354 looper letters, 23 selfloop transitions, 2 changer transitions 1/322 dead transitions. [2024-11-19 05:54:57,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 322 transitions, 701 flow [2024-11-19 05:54:57,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:57,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2024-11-19 05:54:57,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8973634651600754 [2024-11-19 05:54:57,281 INFO L175 Difference]: Start difference. First operand has 324 places, 354 transitions, 715 flow. Second operand 3 states and 953 transitions. [2024-11-19 05:54:57,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 322 transitions, 701 flow [2024-11-19 05:54:57,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 322 transitions, 701 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:57,296 INFO L231 Difference]: Finished difference. Result has 323 places, 321 transitions, 659 flow [2024-11-19 05:54:57,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=323, PETRI_TRANSITIONS=321} [2024-11-19 05:54:57,303 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, -1 predicate places. [2024-11-19 05:54:57,304 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 321 transitions, 659 flow [2024-11-19 05:54:57,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:57,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:57,306 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:57,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:54:57,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:57,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1439344414, now seen corresponding path program 1 times [2024-11-19 05:54:57,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:57,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860891930] [2024-11-19 05:54:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:57,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:57,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:57,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:57,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860891930] [2024-11-19 05:54:57,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860891930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:57,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209364640] [2024-11-19 05:54:57,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:57,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:57,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:57,523 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) [2024-11-19 05:54:57,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:54:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:57,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:54:57,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:57,743 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:57,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209364640] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:57,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:57,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:54:57,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213888966] [2024-11-19 05:54:57,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:57,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:54:57,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:57,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:54:57,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:54:57,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-19 05:54:57,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 321 transitions, 659 flow. Second operand has 10 states, 10 states have (on average 297.8) internal successors, (2978), 10 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:57,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:57,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-19 05:54:57,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:58,205 INFO L124 PetriNetUnfolderBase]: 85/1316 cut-off events. [2024-11-19 05:54:58,206 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-19 05:54:58,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 1316 events. 85/1316 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8311 event pairs, 72 based on Foata normal form. 2/1203 useless extension candidates. Maximal degree in co-relation 1424. Up to 178 conditions per place. [2024-11-19 05:54:58,216 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 27 selfloop transitions, 9 changer transitions 0/329 dead transitions. [2024-11-19 05:54:58,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 329 transitions, 749 flow [2024-11-19 05:54:58,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:54:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:54:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2702 transitions. [2024-11-19 05:54:58,222 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8480853735091023 [2024-11-19 05:54:58,223 INFO L175 Difference]: Start difference. First operand has 323 places, 321 transitions, 659 flow. Second operand 9 states and 2702 transitions. [2024-11-19 05:54:58,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 329 transitions, 749 flow [2024-11-19 05:54:58,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 329 transitions, 747 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:58,233 INFO L231 Difference]: Finished difference. Result has 332 places, 327 transitions, 707 flow [2024-11-19 05:54:58,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=707, PETRI_PLACES=332, PETRI_TRANSITIONS=327} [2024-11-19 05:54:58,235 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 8 predicate places. [2024-11-19 05:54:58,235 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 327 transitions, 707 flow [2024-11-19 05:54:58,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 297.8) internal successors, (2978), 10 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:58,237 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:58,238 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:58,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 05:54:58,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:58,440 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:58,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:58,442 INFO L85 PathProgramCache]: Analyzing trace with hash -909527618, now seen corresponding path program 2 times [2024-11-19 05:54:58,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:58,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424583262] [2024-11-19 05:54:58,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:54:58,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:58,492 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:54:58,492 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:54:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:54:59,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:59,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424583262] [2024-11-19 05:54:59,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424583262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:59,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:59,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:59,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157026493] [2024-11-19 05:54:59,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:59,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:59,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:59,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:59,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:59,491 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 354 [2024-11-19 05:54:59,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 327 transitions, 707 flow. Second operand has 6 states, 6 states have (on average 248.5) internal successors, (1491), 6 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:59,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:59,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 354 [2024-11-19 05:54:59,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:55:00,820 INFO L124 PetriNetUnfolderBase]: 1365/5282 cut-off events. [2024-11-19 05:55:00,821 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 05:55:00,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8078 conditions, 5282 events. 1365/5282 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 46626 event pairs, 929 based on Foata normal form. 0/4871 useless extension candidates. Maximal degree in co-relation 7954. Up to 2543 conditions per place. [2024-11-19 05:55:00,854 INFO L140 encePairwiseOnDemand]: 327/354 looper letters, 107 selfloop transitions, 86 changer transitions 0/444 dead transitions. [2024-11-19 05:55:00,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 444 transitions, 1327 flow [2024-11-19 05:55:00,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:55:00,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:55:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1676 transitions. [2024-11-19 05:55:00,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7890772128060264 [2024-11-19 05:55:00,859 INFO L175 Difference]: Start difference. First operand has 332 places, 327 transitions, 707 flow. Second operand 6 states and 1676 transitions. [2024-11-19 05:55:00,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 444 transitions, 1327 flow [2024-11-19 05:55:00,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 444 transitions, 1321 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 05:55:00,871 INFO L231 Difference]: Finished difference. Result has 341 places, 412 transitions, 1267 flow [2024-11-19 05:55:00,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1267, PETRI_PLACES=341, PETRI_TRANSITIONS=412} [2024-11-19 05:55:00,874 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 17 predicate places. [2024-11-19 05:55:00,874 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 412 transitions, 1267 flow [2024-11-19 05:55:00,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 248.5) internal successors, (1491), 6 states have internal predecessors, (1491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:00,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:55:00,876 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:55:00,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:55:00,876 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:55:00,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:55:00,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1656839284, now seen corresponding path program 1 times [2024-11-19 05:55:00,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:55:00,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897006663] [2024-11-19 05:55:00,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:55:00,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:55:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:55:00,967 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:55:00,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:55:00,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897006663] [2024-11-19 05:55:00,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897006663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:55:00,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:55:00,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:55:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821424015] [2024-11-19 05:55:00,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:55:00,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:55:00,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:55:00,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:55:00,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:55:00,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 354 [2024-11-19 05:55:01,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 412 transitions, 1267 flow. Second operand has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 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) [2024-11-19 05:55:01,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:55:01,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 354 [2024-11-19 05:55:01,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:55:01,344 INFO L124 PetriNetUnfolderBase]: 259/1974 cut-off events. [2024-11-19 05:55:01,344 INFO L125 PetriNetUnfolderBase]: For 152/174 co-relation queries the response was YES. [2024-11-19 05:55:01,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2876 conditions, 1974 events. 259/1974 cut-off events. For 152/174 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14819 event pairs, 88 based on Foata normal form. 1/1818 useless extension candidates. Maximal degree in co-relation 2750. Up to 235 conditions per place. [2024-11-19 05:55:01,360 INFO L140 encePairwiseOnDemand]: 351/354 looper letters, 30 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2024-11-19 05:55:01,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 420 transitions, 1349 flow [2024-11-19 05:55:01,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:55:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:55:01,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2024-11-19 05:55:01,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8757062146892656 [2024-11-19 05:55:01,363 INFO L175 Difference]: Start difference. First operand has 341 places, 412 transitions, 1267 flow. Second operand 3 states and 930 transitions. [2024-11-19 05:55:01,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 420 transitions, 1349 flow [2024-11-19 05:55:01,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 420 transitions, 1349 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:55:01,425 INFO L231 Difference]: Finished difference. Result has 344 places, 412 transitions, 1278 flow [2024-11-19 05:55:01,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=1267, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1278, PETRI_PLACES=344, PETRI_TRANSITIONS=412} [2024-11-19 05:55:01,426 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 20 predicate places. [2024-11-19 05:55:01,427 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 412 transitions, 1278 flow [2024-11-19 05:55:01,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 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) [2024-11-19 05:55:01,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:55:01,428 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:55:01,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:55:01,429 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:55:01,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:55:01,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1329793011, now seen corresponding path program 1 times [2024-11-19 05:55:01,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:55:01,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646989844] [2024-11-19 05:55:01,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:55:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:55:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:55:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:55:01,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:55:01,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646989844] [2024-11-19 05:55:01,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646989844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:55:01,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663937122] [2024-11-19 05:55:01,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:55:01,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:55:01,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:55:01,660 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) [2024-11-19 05:55:01,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:55:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:55:01,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 05:55:01,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:55:01,866 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:55:01,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:55:01,981 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:55:01,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663937122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:55:01,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:55:01,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-19 05:55:01,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685477848] [2024-11-19 05:55:01,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:55:01,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 05:55:01,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:55:01,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 05:55:01,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:55:02,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-19 05:55:02,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 412 transitions, 1278 flow. Second operand has 18 states, 18 states have (on average 297.94444444444446) internal successors, (5363), 18 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:02,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:55:02,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-19 05:55:02,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:55:02,624 INFO L124 PetriNetUnfolderBase]: 237/1938 cut-off events. [2024-11-19 05:55:02,624 INFO L125 PetriNetUnfolderBase]: For 158/192 co-relation queries the response was YES. [2024-11-19 05:55:02,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2848 conditions, 1938 events. 237/1938 cut-off events. For 158/192 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14374 event pairs, 72 based on Foata normal form. 4/1799 useless extension candidates. Maximal degree in co-relation 2646. Up to 232 conditions per place. [2024-11-19 05:55:02,639 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 31 selfloop transitions, 21 changer transitions 0/430 dead transitions. [2024-11-19 05:55:02,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 430 transitions, 1470 flow [2024-11-19 05:55:02,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 05:55:02,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 05:55:02,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6272 transitions. [2024-11-19 05:55:02,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8436911487758946 [2024-11-19 05:55:02,653 INFO L175 Difference]: Start difference. First operand has 344 places, 412 transitions, 1278 flow. Second operand 21 states and 6272 transitions. [2024-11-19 05:55:02,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 430 transitions, 1470 flow [2024-11-19 05:55:02,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 430 transitions, 1464 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:55:02,666 INFO L231 Difference]: Finished difference. Result has 367 places, 425 transitions, 1402 flow [2024-11-19 05:55:02,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1402, PETRI_PLACES=367, PETRI_TRANSITIONS=425} [2024-11-19 05:55:02,668 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 43 predicate places. [2024-11-19 05:55:02,668 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 425 transitions, 1402 flow [2024-11-19 05:55:02,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 297.94444444444446) internal successors, (5363), 18 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:02,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:55:02,672 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:55:02,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 05:55:02,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:55:02,873 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:55:02,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:55:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash 45947571, now seen corresponding path program 2 times [2024-11-19 05:55:02,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:55:02,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598900478] [2024-11-19 05:55:02,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:55:02,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:55:02,933 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 05:55:02,933 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:55:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:55:03,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:55:03,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598900478] [2024-11-19 05:55:03,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598900478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:55:03,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767279310] [2024-11-19 05:55:03,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:55:03,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:55:03,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:55:03,308 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:55:03,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 05:55:03,461 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 05:55:03,461 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:55:03,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 05:55:03,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:55:03,581 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:55:03,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:55:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:55:03,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767279310] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:55:03,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:55:03,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-19 05:55:03,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467172533] [2024-11-19 05:55:03,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:55:03,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 05:55:03,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:55:03,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 05:55:03,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 05:55:03,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 354 [2024-11-19 05:55:03,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 425 transitions, 1402 flow. Second operand has 23 states, 23 states have (on average 298.04347826086956) internal successors, (6855), 23 states have internal predecessors, (6855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:03,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:55:03,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 354 [2024-11-19 05:55:03,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:55:04,565 INFO L124 PetriNetUnfolderBase]: 237/1953 cut-off events. [2024-11-19 05:55:04,566 INFO L125 PetriNetUnfolderBase]: For 259/293 co-relation queries the response was YES. [2024-11-19 05:55:04,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2948 conditions, 1953 events. 237/1953 cut-off events. For 259/293 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14317 event pairs, 72 based on Foata normal form. 3/1813 useless extension candidates. Maximal degree in co-relation 2646. Up to 232 conditions per place. [2024-11-19 05:55:04,580 INFO L140 encePairwiseOnDemand]: 348/354 looper letters, 34 selfloop transitions, 30 changer transitions 0/442 dead transitions. [2024-11-19 05:55:04,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 442 transitions, 1658 flow [2024-11-19 05:55:04,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 05:55:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-19 05:55:04,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8947 transitions. [2024-11-19 05:55:04,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.842467043314501 [2024-11-19 05:55:04,597 INFO L175 Difference]: Start difference. First operand has 367 places, 425 transitions, 1402 flow. Second operand 30 states and 8947 transitions. [2024-11-19 05:55:04,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 442 transitions, 1658 flow [2024-11-19 05:55:04,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 442 transitions, 1628 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-19 05:55:04,609 INFO L231 Difference]: Finished difference. Result has 394 places, 435 transitions, 1530 flow [2024-11-19 05:55:04,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=354, PETRI_DIFFERENCE_MINUEND_FLOW=1378, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1530, PETRI_PLACES=394, PETRI_TRANSITIONS=435} [2024-11-19 05:55:04,611 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 70 predicate places. [2024-11-19 05:55:04,611 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 435 transitions, 1530 flow [2024-11-19 05:55:04,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 298.04347826086956) internal successors, (6855), 23 states have internal predecessors, (6855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:04,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:55:04,615 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:55:04,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 05:55:04,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:55:04,820 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:55:04,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:55:04,821 INFO L85 PathProgramCache]: Analyzing trace with hash -137490686, now seen corresponding path program 3 times [2024-11-19 05:55:04,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:55:04,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757466553] [2024-11-19 05:55:04,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:55:04,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:55:04,916 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-19 05:55:04,917 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 05:55:04,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:55:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:55:05,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:55:05,002 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:55:05,004 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-19 05:55:05,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-19 05:55:05,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-19 05:55:05,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-19 05:55:05,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-19 05:55:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-19 05:55:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-19 05:55:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-19 05:55:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-19 05:55:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-19 05:55:05,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-19 05:55:05,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-19 05:55:05,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-19 05:55:05,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-19 05:55:05,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-19 05:55:05,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-19 05:55:05,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-19 05:55:05,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-19 05:55:05,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:55:05,009 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2024-11-19 05:55:05,012 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:55:05,012 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:55:05,061 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 05:55:05,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 472 transitions, 960 flow [2024-11-19 05:55:05,171 INFO L124 PetriNetUnfolderBase]: 80/758 cut-off events. [2024-11-19 05:55:05,171 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-19 05:55:05,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 758 events. 80/758 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3374 event pairs, 0 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 485. Up to 12 conditions per place. [2024-11-19 05:55:05,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 472 transitions, 960 flow [2024-11-19 05:55:05,195 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 472 transitions, 960 flow [2024-11-19 05:55:05,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:55:05,197 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;@14c1a8fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:55:05,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-19 05:55:05,206 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:55:05,206 INFO L124 PetriNetUnfolderBase]: 8/133 cut-off events. [2024-11-19 05:55:05,206 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:55:05,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:55:05,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:55:05,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:55:05,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:55:05,207 INFO L85 PathProgramCache]: Analyzing trace with hash 175079599, now seen corresponding path program 1 times [2024-11-19 05:55:05,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:55:05,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895667508] [2024-11-19 05:55:05,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:55:05,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:55:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:55:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:55:05,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:55:05,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895667508] [2024-11-19 05:55:05,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895667508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:55:05,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:55:05,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:55:05,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420178977] [2024-11-19 05:55:05,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:55:05,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:55:05,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:55:05,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:55:05,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:55:05,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 472 [2024-11-19 05:55:05,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 472 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:05,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:55:05,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 472 [2024-11-19 05:55:05,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:55:07,276 INFO L124 PetriNetUnfolderBase]: 1580/11913 cut-off events. [2024-11-19 05:55:07,276 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-11-19 05:55:07,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14374 conditions, 11913 events. 1580/11913 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142637 event pairs, 1464 based on Foata normal form. 2927/13935 useless extension candidates. Maximal degree in co-relation 12718. Up to 2408 conditions per place. [2024-11-19 05:55:07,393 INFO L140 encePairwiseOnDemand]: 427/472 looper letters, 33 selfloop transitions, 2 changer transitions 1/425 dead transitions. [2024-11-19 05:55:07,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 425 transitions, 936 flow [2024-11-19 05:55:07,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:55:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:55:07,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1258 transitions. [2024-11-19 05:55:07,398 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8884180790960452 [2024-11-19 05:55:07,398 INFO L175 Difference]: Start difference. First operand has 429 places, 472 transitions, 960 flow. Second operand 3 states and 1258 transitions. [2024-11-19 05:55:07,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 425 transitions, 936 flow [2024-11-19 05:55:07,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 425 transitions, 936 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:55:07,408 INFO L231 Difference]: Finished difference. Result has 426 places, 424 transitions, 874 flow [2024-11-19 05:55:07,409 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=426, PETRI_TRANSITIONS=424} [2024-11-19 05:55:07,410 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, -3 predicate places. [2024-11-19 05:55:07,411 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 424 transitions, 874 flow [2024-11-19 05:55:07,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:07,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:55:07,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:55:07,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:55:07,413 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:55:07,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:55:07,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1665323510, now seen corresponding path program 1 times [2024-11-19 05:55:07,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:55:07,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380444152] [2024-11-19 05:55:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:55:07,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:55:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:55:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:55:07,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:55:07,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380444152] [2024-11-19 05:55:07,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380444152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:55:07,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968429508] [2024-11-19 05:55:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:55:07,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:55:07,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:55:07,533 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:55:07,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 05:55:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:55:07,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:55:07,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:55:07,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:55:07,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:55:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:55:07,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968429508] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:55:07,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:55:07,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:55:07,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598235270] [2024-11-19 05:55:07,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:55:07,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:55:07,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:55:07,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:55:07,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:55:07,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 472 [2024-11-19 05:55:07,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 424 transitions, 874 flow. Second operand has 10 states, 10 states have (on average 391.8) internal successors, (3918), 10 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:07,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:55:07,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 472 [2024-11-19 05:55:07,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:55:09,899 INFO L124 PetriNetUnfolderBase]: 1580/11919 cut-off events. [2024-11-19 05:55:09,899 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-19 05:55:09,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14399 conditions, 11919 events. 1580/11919 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 142579 event pairs, 1464 based on Foata normal form. 2/11017 useless extension candidates. Maximal degree in co-relation 14303. Up to 2408 conditions per place. [2024-11-19 05:55:09,996 INFO L140 encePairwiseOnDemand]: 466/472 looper letters, 37 selfloop transitions, 9 changer transitions 0/432 dead transitions. [2024-11-19 05:55:09,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 432 transitions, 984 flow [2024-11-19 05:55:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:55:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:55:10,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3558 transitions. [2024-11-19 05:55:10,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8375706214689266 [2024-11-19 05:55:10,005 INFO L175 Difference]: Start difference. First operand has 426 places, 424 transitions, 874 flow. Second operand 9 states and 3558 transitions. [2024-11-19 05:55:10,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 432 transitions, 984 flow [2024-11-19 05:55:10,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 432 transitions, 982 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:55:10,013 INFO L231 Difference]: Finished difference. Result has 435 places, 430 transitions, 922 flow [2024-11-19 05:55:10,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=922, PETRI_PLACES=435, PETRI_TRANSITIONS=430} [2024-11-19 05:55:10,016 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, 6 predicate places. [2024-11-19 05:55:10,017 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 430 transitions, 922 flow [2024-11-19 05:55:10,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 391.8) internal successors, (3918), 10 states have internal predecessors, (3918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:10,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:55:10,019 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:55:10,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 05:55:10,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:55:10,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:55:10,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:55:10,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1659774570, now seen corresponding path program 2 times [2024-11-19 05:55:10,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:55:10,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619185177] [2024-11-19 05:55:10,221 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:55:10,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:55:10,239 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:55:10,239 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:55:10,621 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:55:10,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:55:10,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619185177] [2024-11-19 05:55:10,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619185177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:55:10,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:55:10,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:55:10,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845307604] [2024-11-19 05:55:10,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:55:10,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:55:10,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:55:10,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:55:10,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:55:11,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 472 [2024-11-19 05:55:11,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 430 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 322.5) internal successors, (1935), 6 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:11,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:55:11,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 472 [2024-11-19 05:55:11,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:55:42,036 INFO L124 PetriNetUnfolderBase]: 83051/196773 cut-off events. [2024-11-19 05:55:42,037 INFO L125 PetriNetUnfolderBase]: For 1130/1130 co-relation queries the response was YES. [2024-11-19 05:55:43,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321802 conditions, 196773 events. 83051/196773 cut-off events. For 1130/1130 co-relation queries the response was YES. Maximal size of possible extension queue 3902. Compared 2612156 event pairs, 59498 based on Foata normal form. 0/184047 useless extension candidates. Maximal degree in co-relation 321677. Up to 116891 conditions per place. [2024-11-19 05:55:43,926 INFO L140 encePairwiseOnDemand]: 425/472 looper letters, 170 selfloop transitions, 166 changer transitions 0/660 dead transitions. [2024-11-19 05:55:43,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 660 transitions, 2059 flow [2024-11-19 05:55:43,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:55:43,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:55:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2263 transitions. [2024-11-19 05:55:43,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7990819209039548 [2024-11-19 05:55:43,932 INFO L175 Difference]: Start difference. First operand has 435 places, 430 transitions, 922 flow. Second operand 6 states and 2263 transitions. [2024-11-19 05:55:43,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 660 transitions, 2059 flow [2024-11-19 05:55:43,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 660 transitions, 2053 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 05:55:43,950 INFO L231 Difference]: Finished difference. Result has 444 places, 595 transitions, 2002 flow [2024-11-19 05:55:43,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2002, PETRI_PLACES=444, PETRI_TRANSITIONS=595} [2024-11-19 05:55:43,955 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, 15 predicate places. [2024-11-19 05:55:43,955 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 595 transitions, 2002 flow [2024-11-19 05:55:43,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 322.5) internal successors, (1935), 6 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:43,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:55:43,958 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:55:43,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:55:43,959 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:55:43,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:55:43,959 INFO L85 PathProgramCache]: Analyzing trace with hash 925562468, now seen corresponding path program 1 times [2024-11-19 05:55:43,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:55:43,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554601893] [2024-11-19 05:55:43,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:55:43,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:55:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:55:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:55:44,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:55:44,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554601893] [2024-11-19 05:55:44,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554601893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:55:44,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:55:44,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:55:44,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382330608] [2024-11-19 05:55:44,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:55:44,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:55:44,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:55:44,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:55:44,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:55:44,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 472 [2024-11-19 05:55:44,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 595 transitions, 2002 flow. Second operand has 3 states, 3 states have (on average 395.0) internal successors, (1185), 3 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:55:44,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:55:44,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 472 [2024-11-19 05:55:44,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand