./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/pthread-divine/one_time_barrier_twice_2t.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 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:33:29,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:33:29,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:33:29,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:33:29,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:33:29,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:33:29,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:33:29,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:33:29,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:33:29,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:33:29,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:33:29,201 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:33:29,202 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:33:29,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:33:29,202 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb [2025-03-14 01:33:29,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:33:29,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:33:29,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:33:29,453 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:33:29,453 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:33:29,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2025-03-14 01:33:30,640 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dfbb9402/1f5cd1dd1c6a4b1eb21a0158513e5a2c/FLAGbe09c6aa8 [2025-03-14 01:33:30,997 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:33:31,001 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2025-03-14 01:33:31,027 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dfbb9402/1f5cd1dd1c6a4b1eb21a0158513e5a2c/FLAGbe09c6aa8 [2025-03-14 01:33:31,041 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dfbb9402/1f5cd1dd1c6a4b1eb21a0158513e5a2c [2025-03-14 01:33:31,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:33:31,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:33:31,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:33:31,046 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:33:31,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:33:31,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c457ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31, skipping insertion in model container [2025-03-14 01:33:31,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,080 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:33:31,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:33:31,366 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:33:31,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:33:31,470 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:33:31,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31 WrapperNode [2025-03-14 01:33:31,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:33:31,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:33:31,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:33:31,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:33:31,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,554 INFO L138 Inliner]: procedures = 174, calls = 89, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 867 [2025-03-14 01:33:31,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:33:31,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:33:31,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:33:31,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:33:31,560 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,568 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,568 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,603 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:33:31,623 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:33:31,623 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:33:31,624 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:33:31,624 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (1/1) ... [2025-03-14 01:33:31,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:33:31,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:33:31,651 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) [2025-03-14 01:33:31,654 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 [2025-03-14 01:33:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 01:33:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 01:33:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-14 01:33:31,671 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-03-14 01:33:31,671 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-03-14 01:33:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:33:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-14 01:33:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-14 01:33:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-14 01:33:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-14 01:33:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:33:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-14 01:33:31,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:33:31,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:33:31,674 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:33:31,808 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:33:31,810 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:33:32,833 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:33:32,834 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:33:32,834 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:33:32,876 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:33:32,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:33:32 BoogieIcfgContainer [2025-03-14 01:33:32,877 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:33:32,879 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:33:32,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:33:32,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:33:32,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:33:31" (1/3) ... [2025-03-14 01:33:32,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77912e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:33:32, skipping insertion in model container [2025-03-14 01:33:32,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:33:31" (2/3) ... [2025-03-14 01:33:32,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77912e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:33:32, skipping insertion in model container [2025-03-14 01:33:32,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:33:32" (3/3) ... [2025-03-14 01:33:32,884 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_2t.i [2025-03-14 01:33:32,895 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:33:32,896 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_twice_2t.i that has 2 procedures, 973 locations, 1 initial locations, 16 loop locations, and 79 error locations. [2025-03-14 01:33:32,896 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:33:33,058 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-14 01:33:33,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 976 places, 1052 transitions, 2111 flow [2025-03-14 01:33:33,551 INFO L124 PetriNetUnfolderBase]: 118/1545 cut-off events. [2025-03-14 01:33:33,553 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:33:33,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 1545 events. 118/1545 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5711 event pairs, 0 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 915. Up to 4 conditions per place. [2025-03-14 01:33:33,591 INFO L82 GeneralOperation]: Start removeDead. Operand has 976 places, 1052 transitions, 2111 flow [2025-03-14 01:33:33,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 976 places, 1052 transitions, 2111 flow [2025-03-14 01:33:33,625 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:33:33,637 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;@53b06a2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:33:33,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2025-03-14 01:33:33,646 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:33:33,647 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-03-14 01:33:33,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:33:33,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:33:33,648 INFO L206 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] [2025-03-14 01:33:33,649 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-14 01:33:33,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:33:33,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2056556868, now seen corresponding path program 1 times [2025-03-14 01:33:33,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:33:33,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995633881] [2025-03-14 01:33:33,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:33:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:33:33,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:33:33,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:33:33,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:33:33,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:33:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:33:34,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:33:34,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995633881] [2025-03-14 01:33:34,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995633881] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:33:34,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:33:34,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:33:34,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732802349] [2025-03-14 01:33:34,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:33:34,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:33:34,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:33:34,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:33:34,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:33:35,942 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1052 [2025-03-14 01:33:35,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 976 places, 1052 transitions, 2111 flow. Second operand has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:33:35,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:33:35,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1052 [2025-03-14 01:33:35,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:33:46,120 INFO L124 PetriNetUnfolderBase]: 12711/59643 cut-off events. [2025-03-14 01:33:46,121 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-14 01:33:46,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83052 conditions, 59643 events. 12711/59643 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 694418 event pairs, 11413 based on Foata normal form. 5888/58360 useless extension candidates. Maximal degree in co-relation 82324. Up to 23399 conditions per place. [2025-03-14 01:33:46,365 INFO L140 encePairwiseOnDemand]: 986/1052 looper letters, 239 selfloop transitions, 5 changer transitions 6/963 dead transitions. [2025-03-14 01:33:46,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 963 transitions, 2421 flow [2025-03-14 01:33:46,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:33:46,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:33:46,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4787 transitions. [2025-03-14 01:33:46,396 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7583967046894804 [2025-03-14 01:33:46,398 INFO L175 Difference]: Start difference. First operand has 976 places, 1052 transitions, 2111 flow. Second operand 6 states and 4787 transitions. [2025-03-14 01:33:46,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 963 transitions, 2421 flow [2025-03-14 01:33:46,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 963 transitions, 2421 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:33:46,427 INFO L231 Difference]: Finished difference. Result has 952 places, 957 transitions, 1931 flow [2025-03-14 01:33:46,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=958, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1931, PETRI_PLACES=952, PETRI_TRANSITIONS=957} [2025-03-14 01:33:46,434 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -24 predicate places. [2025-03-14 01:33:46,434 INFO L471 AbstractCegarLoop]: Abstraction has has 952 places, 957 transitions, 1931 flow [2025-03-14 01:33:46,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:33:46,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:33:46,438 INFO L206 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] [2025-03-14 01:33:46,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:33:46,439 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-14 01:33:46,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:33:46,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1887817101, now seen corresponding path program 1 times [2025-03-14 01:33:46,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:33:46,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452298868] [2025-03-14 01:33:46,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:33:46,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:33:46,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-14 01:33:46,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-14 01:33:46,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:33:46,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:33:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:33:46,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:33:46,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452298868] [2025-03-14 01:33:46,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452298868] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:33:46,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:33:46,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 01:33:46,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560633984] [2025-03-14 01:33:46,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:33:46,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:33:46,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:33:46,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:33:46,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:33:46,562 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 964 out of 1052 [2025-03-14 01:33:46,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 957 transitions, 1931 flow. Second operand has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:33:46,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:33:46,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 964 of 1052 [2025-03-14 01:33:46,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:33:47,462 INFO L124 PetriNetUnfolderBase]: 247/4823 cut-off events. [2025-03-14 01:33:47,462 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:33:47,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5146 conditions, 4823 events. 247/4823 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36229 event pairs, 110 based on Foata normal form. 1/4162 useless extension candidates. Maximal degree in co-relation 5062. Up to 306 conditions per place. [2025-03-14 01:33:47,488 INFO L140 encePairwiseOnDemand]: 1049/1052 looper letters, 27 selfloop transitions, 2 changer transitions 0/958 dead transitions. [2025-03-14 01:33:47,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 958 transitions, 1991 flow [2025-03-14 01:33:47,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:33:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:33:47,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2922 transitions. [2025-03-14 01:33:47,493 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9258555133079848 [2025-03-14 01:33:47,493 INFO L175 Difference]: Start difference. First operand has 952 places, 957 transitions, 1931 flow. Second operand 3 states and 2922 transitions. [2025-03-14 01:33:47,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 958 transitions, 1991 flow [2025-03-14 01:33:47,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 943 places, 958 transitions, 1981 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-14 01:33:47,508 INFO L231 Difference]: Finished difference. Result has 944 places, 958 transitions, 1933 flow [2025-03-14 01:33:47,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1921, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1933, PETRI_PLACES=944, PETRI_TRANSITIONS=958} [2025-03-14 01:33:47,511 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -32 predicate places. [2025-03-14 01:33:47,511 INFO L471 AbstractCegarLoop]: Abstraction has has 944 places, 958 transitions, 1933 flow [2025-03-14 01:33:47,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:33:47,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:33:47,513 INFO L206 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] [2025-03-14 01:33:47,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:33:47,514 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-14 01:33:47,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:33:47,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1451766445, now seen corresponding path program 1 times [2025-03-14 01:33:47,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:33:47,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492462585] [2025-03-14 01:33:47,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:33:47,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:33:47,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-14 01:33:47,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-14 01:33:47,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:33:47,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:33:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:33:47,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:33:47,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492462585] [2025-03-14 01:33:47,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492462585] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:33:47,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:33:47,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:33:47,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519146321] [2025-03-14 01:33:47,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:33:47,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:33:47,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:33:47,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:33:47,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:33:49,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1052 [2025-03-14 01:33:49,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 958 transitions, 1933 flow. Second operand has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:33:49,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:33:49,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1052 [2025-03-14 01:33:49,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:33:58,682 INFO L124 PetriNetUnfolderBase]: 12711/59664 cut-off events. [2025-03-14 01:33:58,682 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-14 01:33:58,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83088 conditions, 59664 events. 12711/59664 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 694555 event pairs, 11413 based on Foata normal form. 0/52496 useless extension candidates. Maximal degree in co-relation 83009. Up to 23402 conditions per place. [2025-03-14 01:33:58,898 INFO L140 encePairwiseOnDemand]: 1046/1052 looper letters, 240 selfloop transitions, 5 changer transitions 0/957 dead transitions. [2025-03-14 01:33:58,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 957 transitions, 2421 flow [2025-03-14 01:33:58,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:33:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:33:58,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4727 transitions. [2025-03-14 01:33:58,906 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7488910012674271 [2025-03-14 01:33:58,906 INFO L175 Difference]: Start difference. First operand has 944 places, 958 transitions, 1933 flow. Second operand 6 states and 4727 transitions. [2025-03-14 01:33:58,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 957 transitions, 2421 flow [2025-03-14 01:33:58,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 957 transitions, 2419 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 01:33:58,916 INFO L231 Difference]: Finished difference. Result has 947 places, 957 transitions, 1939 flow [2025-03-14 01:33:58,918 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1939, PETRI_PLACES=947, PETRI_TRANSITIONS=957} [2025-03-14 01:33:58,918 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -29 predicate places. [2025-03-14 01:33:58,918 INFO L471 AbstractCegarLoop]: Abstraction has has 947 places, 957 transitions, 1939 flow [2025-03-14 01:33:58,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:33:58,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:33:58,921 INFO L206 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] [2025-03-14 01:33:58,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:33:58,921 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-14 01:33:58,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:33:58,921 INFO L85 PathProgramCache]: Analyzing trace with hash 971390049, now seen corresponding path program 1 times [2025-03-14 01:33:58,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:33:58,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724450490] [2025-03-14 01:33:58,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:33:58,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:33:58,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-14 01:33:58,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-14 01:33:58,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:33:58,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:33:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:33:59,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:33:59,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724450490] [2025-03-14 01:33:59,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724450490] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:33:59,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:33:59,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:33:59,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379413553] [2025-03-14 01:33:59,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:33:59,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:33:59,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:33:59,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:33:59,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:34:00,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1052 [2025-03-14 01:34:00,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 957 transitions, 1939 flow. Second operand has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:34:00,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:34:00,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1052 [2025-03-14 01:34:00,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:34:09,928 INFO L124 PetriNetUnfolderBase]: 12711/59662 cut-off events. [2025-03-14 01:34:09,929 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-03-14 01:34:10,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83095 conditions, 59662 events. 12711/59662 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 694334 event pairs, 11413 based on Foata normal form. 0/52496 useless extension candidates. Maximal degree in co-relation 83002. Up to 23402 conditions per place. [2025-03-14 01:34:10,145 INFO L140 encePairwiseOnDemand]: 1046/1052 looper letters, 240 selfloop transitions, 5 changer transitions 0/956 dead transitions. [2025-03-14 01:34:10,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 956 transitions, 2427 flow [2025-03-14 01:34:10,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:34:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:34:10,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4727 transitions. [2025-03-14 01:34:10,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7488910012674271 [2025-03-14 01:34:10,152 INFO L175 Difference]: Start difference. First operand has 947 places, 957 transitions, 1939 flow. Second operand 6 states and 4727 transitions. [2025-03-14 01:34:10,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 956 transitions, 2427 flow [2025-03-14 01:34:10,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 946 places, 956 transitions, 2417 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-14 01:34:10,162 INFO L231 Difference]: Finished difference. Result has 946 places, 956 transitions, 1937 flow [2025-03-14 01:34:10,163 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1937, PETRI_PLACES=946, PETRI_TRANSITIONS=956} [2025-03-14 01:34:10,163 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -30 predicate places. [2025-03-14 01:34:10,164 INFO L471 AbstractCegarLoop]: Abstraction has has 946 places, 956 transitions, 1937 flow [2025-03-14 01:34:10,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:34:10,166 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:34:10,166 INFO L206 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] [2025-03-14 01:34:10,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:34:10,166 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-14 01:34:10,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:34:10,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1291171115, now seen corresponding path program 1 times [2025-03-14 01:34:10,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:34:10,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934642113] [2025-03-14 01:34:10,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:34:10,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:34:10,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-14 01:34:10,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-14 01:34:10,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:34:10,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:34:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:34:10,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:34:10,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934642113] [2025-03-14 01:34:10,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934642113] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 01:34:10,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258319188] [2025-03-14 01:34:10,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:34:10,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:34:10,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:34:10,228 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) [2025-03-14 01:34:10,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-14 01:34:10,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-14 01:34:10,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-14 01:34:10,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:34:10,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:34:10,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-14 01:34:10,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 01:34:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:34:10,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 01:34:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:34:10,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258319188] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 01:34:10,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 01:34:10,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2025-03-14 01:34:10,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463223016] [2025-03-14 01:34:10,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 01:34:10,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 01:34:10,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:34:10,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 01:34:10,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-14 01:34:10,521 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 963 out of 1052 [2025-03-14 01:34:10,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 946 places, 956 transitions, 1937 flow. Second operand has 5 states, 5 states have (on average 964.8) internal successors, (4824), 5 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:34:10,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:34:10,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 963 of 1052 [2025-03-14 01:34:10,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:34:11,337 INFO L124 PetriNetUnfolderBase]: 247/4821 cut-off events. [2025-03-14 01:34:11,337 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-14 01:34:11,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5152 conditions, 4821 events. 247/4821 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36207 event pairs, 110 based on Foata normal form. 1/4164 useless extension candidates. Maximal degree in co-relation 5045. Up to 305 conditions per place. [2025-03-14 01:34:11,378 INFO L140 encePairwiseOnDemand]: 1048/1052 looper letters, 28 selfloop transitions, 4 changer transitions 0/958 dead transitions. [2025-03-14 01:34:11,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 958 transitions, 2005 flow [2025-03-14 01:34:11,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-14 01:34:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-14 01:34:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3885 transitions. [2025-03-14 01:34:11,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9232414448669202 [2025-03-14 01:34:11,390 INFO L175 Difference]: Start difference. First operand has 946 places, 956 transitions, 1937 flow. Second operand 4 states and 3885 transitions. [2025-03-14 01:34:11,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 958 transitions, 2005 flow [2025-03-14 01:34:11,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 944 places, 958 transitions, 1995 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-14 01:34:11,418 INFO L231 Difference]: Finished difference. Result has 946 places, 957 transitions, 1947 flow [2025-03-14 01:34:11,419 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1947, PETRI_PLACES=946, PETRI_TRANSITIONS=957} [2025-03-14 01:34:11,420 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -30 predicate places. [2025-03-14 01:34:11,420 INFO L471 AbstractCegarLoop]: Abstraction has has 946 places, 957 transitions, 1947 flow [2025-03-14 01:34:11,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 964.8) internal successors, (4824), 5 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:34:11,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:34:11,425 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-14 01:34:11,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-14 01:34:11,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 01:34:11,630 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-14 01:34:11,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:34:11,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1754893341, now seen corresponding path program 2 times [2025-03-14 01:34:11,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:34:11,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615454736] [2025-03-14 01:34:11,631 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 01:34:11,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:34:11,655 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-03-14 01:34:11,659 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 102 statements. [2025-03-14 01:34:11,659 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 01:34:11,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:34:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-14 01:34:11,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:34:11,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615454736] [2025-03-14 01:34:11,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615454736] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:34:11,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:34:11,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:34:11,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720923684] [2025-03-14 01:34:11,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:34:11,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:34:11,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:34:11,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:34:11,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:34:13,209 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 744 out of 1052 [2025-03-14 01:34:13,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 946 places, 957 transitions, 1947 flow. Second operand has 6 states, 6 states have (on average 747.3333333333334) internal successors, (4484), 6 states have internal predecessors, (4484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:34:13,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:34:13,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 744 of 1052 [2025-03-14 01:34:13,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:34:22,274 INFO L124 PetriNetUnfolderBase]: 12501/59214 cut-off events. [2025-03-14 01:34:22,274 INFO L125 PetriNetUnfolderBase]: For 13/16 co-relation queries the response was YES. [2025-03-14 01:34:22,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82248 conditions, 59214 events. 12501/59214 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 690133 event pairs, 11211 based on Foata normal form. 0/52109 useless extension candidates. Maximal degree in co-relation 82118. Up to 23002 conditions per place. [2025-03-14 01:34:22,517 INFO L140 encePairwiseOnDemand]: 1040/1052 looper letters, 236 selfloop transitions, 10 changer transitions 0/955 dead transitions. [2025-03-14 01:34:22,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 955 transitions, 2435 flow [2025-03-14 01:34:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:34:22,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:34:22,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4712 transitions. [2025-03-14 01:34:22,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7465145754119138 [2025-03-14 01:34:22,524 INFO L175 Difference]: Start difference. First operand has 946 places, 957 transitions, 1947 flow. Second operand 6 states and 4712 transitions. [2025-03-14 01:34:22,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 955 transitions, 2435 flow [2025-03-14 01:34:22,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 955 transitions, 2431 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-14 01:34:22,548 INFO L231 Difference]: Finished difference. Result has 948 places, 955 transitions, 1959 flow [2025-03-14 01:34:22,549 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1959, PETRI_PLACES=948, PETRI_TRANSITIONS=955} [2025-03-14 01:34:22,550 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -28 predicate places. [2025-03-14 01:34:22,550 INFO L471 AbstractCegarLoop]: Abstraction has has 948 places, 955 transitions, 1959 flow [2025-03-14 01:34:22,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 747.3333333333334) internal successors, (4484), 6 states have internal predecessors, (4484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 01:34:22,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:34:22,554 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-03-14 01:34:22,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 01:34:22,554 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-14 01:34:22,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:34:22,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1785342022, now seen corresponding path program 1 times [2025-03-14 01:34:22,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:34:22,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527187852] [2025-03-14 01:34:22,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:34:22,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:34:22,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-14 01:34:22,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-14 01:34:22,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:34:22,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat