./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-misc-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 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/weaver/parallel-misc-4.wvr.c -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 287b872f435ea31dbbf77f267944e24b96122b5f745db0674c91555289f3b84c --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:54:29,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:54:29,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:54:29,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:54:29,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:54:29,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:54:29,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:54:29,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:54:29,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:54:29,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:54:29,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:54:29,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:54:29,922 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:54:29,923 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:54:29,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:54:29,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:54:29,923 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 -> 287b872f435ea31dbbf77f267944e24b96122b5f745db0674c91555289f3b84c [2025-03-04 06:54:30,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:54:30,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:54:30,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:54:30,150 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:54:30,150 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:54:30,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-4.wvr.c [2025-03-04 06:54:31,272 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efbf96d1c/efe572ab61bd4b2ea85e10bcadc8b4eb/FLAGc87466531 [2025-03-04 06:54:31,582 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:54:31,582 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-4.wvr.c [2025-03-04 06:54:31,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efbf96d1c/efe572ab61bd4b2ea85e10bcadc8b4eb/FLAGc87466531 [2025-03-04 06:54:31,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efbf96d1c/efe572ab61bd4b2ea85e10bcadc8b4eb [2025-03-04 06:54:31,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:54:31,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:54:31,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:54:31,860 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:54:31,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:54:31,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:54:31" (1/1) ... [2025-03-04 06:54:31,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7575d929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:31, skipping insertion in model container [2025-03-04 06:54:31,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:54:31" (1/1) ... [2025-03-04 06:54:31,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:54:32,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:54:32,012 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:54:32,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:54:32,043 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:54:32,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32 WrapperNode [2025-03-04 06:54:32,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:54:32,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:54:32,045 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:54:32,045 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:54:32,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,073 INFO L138 Inliner]: procedures = 19, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2025-03-04 06:54:32,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:54:32,074 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:54:32,074 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:54:32,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:54:32,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,086 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:54:32,101 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:54:32,101 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:54:32,101 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:54:32,102 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (1/1) ... [2025-03-04 06:54:32,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:54:32,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:54:32,135 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) [2025-03-04 06:54:32,141 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 [2025-03-04 06:54:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:54:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 06:54:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 06:54:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 06:54:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 06:54:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-04 06:54:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-04 06:54:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:54:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:54:32,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:54:32,158 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:54:32,241 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:54:32,243 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:54:32,425 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:54:32,426 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:54:32,448 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:54:32,448 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:54:32,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:54:32 BoogieIcfgContainer [2025-03-04 06:54:32,449 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:54:32,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:54:32,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:54:32,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:54:32,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:54:31" (1/3) ... [2025-03-04 06:54:32,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5295a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:54:32, skipping insertion in model container [2025-03-04 06:54:32,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:54:32" (2/3) ... [2025-03-04 06:54:32,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5295a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:54:32, skipping insertion in model container [2025-03-04 06:54:32,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:54:32" (3/3) ... [2025-03-04 06:54:32,456 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-misc-4.wvr.c [2025-03-04 06:54:32,468 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:54:32,469 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-misc-4.wvr.c that has 4 procedures, 142 locations, 1 initial locations, 2 loop locations, and 11 error locations. [2025-03-04 06:54:32,469 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:54:32,533 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-04 06:54:32,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 148 transitions, 317 flow [2025-03-04 06:54:32,621 INFO L124 PetriNetUnfolderBase]: 7/145 cut-off events. [2025-03-04 06:54:32,623 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-04 06:54:32,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 7/145 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 206 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 131. Up to 2 conditions per place. [2025-03-04 06:54:32,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 148 transitions, 317 flow [2025-03-04 06:54:32,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 135 transitions, 282 flow [2025-03-04 06:54:32,643 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:54:32,652 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;@75f5bc43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:54:32,652 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-03-04 06:54:32,659 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:54:32,659 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-04 06:54:32,659 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:54:32,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:54:32,662 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] [2025-03-04 06:54:32,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:54:32,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:54:32,667 INFO L85 PathProgramCache]: Analyzing trace with hash 977546278, now seen corresponding path program 1 times [2025-03-04 06:54:32,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:54:32,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190008601] [2025-03-04 06:54:32,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:54:32,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:54:32,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 06:54:32,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 06:54:32,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:54:32,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:54:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:54:32,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:54:32,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190008601] [2025-03-04 06:54:32,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190008601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:54:32,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:54:32,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:54:32,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406956806] [2025-03-04 06:54:32,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:54:32,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:54:32,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:54:32,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:54:32,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:54:32,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 148 [2025-03-04 06:54:32,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:32,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:54:32,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 148 [2025-03-04 06:54:32,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:54:33,077 INFO L124 PetriNetUnfolderBase]: 113/577 cut-off events. [2025-03-04 06:54:33,078 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2025-03-04 06:54:33,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 577 events. 113/577 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2998 event pairs, 46 based on Foata normal form. 1/469 useless extension candidates. Maximal degree in co-relation 648. Up to 158 conditions per place. [2025-03-04 06:54:33,084 INFO L140 encePairwiseOnDemand]: 144/148 looper letters, 19 selfloop transitions, 2 changer transitions 1/133 dead transitions. [2025-03-04 06:54:33,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 320 flow [2025-03-04 06:54:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:54:33,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:54:33,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2025-03-04 06:54:33,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8693693693693694 [2025-03-04 06:54:33,094 INFO L175 Difference]: Start difference. First operand has 138 places, 135 transitions, 282 flow. Second operand 3 states and 386 transitions. [2025-03-04 06:54:33,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 320 flow [2025-03-04 06:54:33,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 133 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 06:54:33,101 INFO L231 Difference]: Finished difference. Result has 135 places, 132 transitions, 274 flow [2025-03-04 06:54:33,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=135, PETRI_TRANSITIONS=132} [2025-03-04 06:54:33,105 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -3 predicate places. [2025-03-04 06:54:33,106 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 132 transitions, 274 flow [2025-03-04 06:54:33,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,106 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:54:33,106 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] [2025-03-04 06:54:33,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:54:33,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:54:33,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:54:33,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1099477011, now seen corresponding path program 1 times [2025-03-04 06:54:33,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:54:33,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686717686] [2025-03-04 06:54:33,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:54:33,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:54:33,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 06:54:33,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 06:54:33,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:54:33,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:54:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:54:33,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:54:33,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686717686] [2025-03-04 06:54:33,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686717686] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:54:33,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:54:33,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:54:33,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887324689] [2025-03-04 06:54:33,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:54:33,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:54:33,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:54:33,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:54:33,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:54:33,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 148 [2025-03-04 06:54:33,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 132 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:54:33,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 148 [2025-03-04 06:54:33,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:54:33,233 INFO L124 PetriNetUnfolderBase]: 93/430 cut-off events. [2025-03-04 06:54:33,233 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-03-04 06:54:33,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 430 events. 93/430 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2109 event pairs, 67 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 590. Up to 151 conditions per place. [2025-03-04 06:54:33,237 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 18 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2025-03-04 06:54:33,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 131 transitions, 312 flow [2025-03-04 06:54:33,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:54:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:54:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2025-03-04 06:54:33,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8716216216216216 [2025-03-04 06:54:33,239 INFO L175 Difference]: Start difference. First operand has 135 places, 132 transitions, 274 flow. Second operand 3 states and 387 transitions. [2025-03-04 06:54:33,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 131 transitions, 312 flow [2025-03-04 06:54:33,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 131 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:54:33,241 INFO L231 Difference]: Finished difference. Result has 133 places, 131 transitions, 272 flow [2025-03-04 06:54:33,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=133, PETRI_TRANSITIONS=131} [2025-03-04 06:54:33,243 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -5 predicate places. [2025-03-04 06:54:33,244 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 131 transitions, 272 flow [2025-03-04 06:54:33,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:54:33,244 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] [2025-03-04 06:54:33,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:54:33,244 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:54:33,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:54:33,245 INFO L85 PathProgramCache]: Analyzing trace with hash -517420217, now seen corresponding path program 1 times [2025-03-04 06:54:33,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:54:33,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048369529] [2025-03-04 06:54:33,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:54:33,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:54:33,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 06:54:33,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 06:54:33,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:54:33,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:54:33,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:54:33,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:54:33,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048369529] [2025-03-04 06:54:33,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048369529] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:54:33,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:54:33,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:54:33,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611729147] [2025-03-04 06:54:33,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:54:33,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:54:33,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:54:33,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:54:33,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:54:33,326 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 148 [2025-03-04 06:54:33,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 131 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:54:33,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 148 [2025-03-04 06:54:33,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:54:33,428 INFO L124 PetriNetUnfolderBase]: 172/847 cut-off events. [2025-03-04 06:54:33,428 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-03-04 06:54:33,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 847 events. 172/847 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5176 event pairs, 56 based on Foata normal form. 0/693 useless extension candidates. Maximal degree in co-relation 1106. Up to 179 conditions per place. [2025-03-04 06:54:33,432 INFO L140 encePairwiseOnDemand]: 141/148 looper letters, 26 selfloop transitions, 3 changer transitions 0/135 dead transitions. [2025-03-04 06:54:33,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 135 transitions, 344 flow [2025-03-04 06:54:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:54:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:54:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2025-03-04 06:54:33,434 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8783783783783784 [2025-03-04 06:54:33,434 INFO L175 Difference]: Start difference. First operand has 133 places, 131 transitions, 272 flow. Second operand 3 states and 390 transitions. [2025-03-04 06:54:33,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 135 transitions, 344 flow [2025-03-04 06:54:33,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 135 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:54:33,437 INFO L231 Difference]: Finished difference. Result has 130 places, 128 transitions, 273 flow [2025-03-04 06:54:33,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=130, PETRI_TRANSITIONS=128} [2025-03-04 06:54:33,437 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -8 predicate places. [2025-03-04 06:54:33,438 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 128 transitions, 273 flow [2025-03-04 06:54:33,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:54:33,438 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] [2025-03-04 06:54:33,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:54:33,438 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:54:33,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:54:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash 975385522, now seen corresponding path program 1 times [2025-03-04 06:54:33,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:54:33,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883288147] [2025-03-04 06:54:33,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:54:33,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:54:33,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 06:54:33,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 06:54:33,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:54:33,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:54:33,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:54:33,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:54:33,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883288147] [2025-03-04 06:54:33,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883288147] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:54:33,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:54:33,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:54:33,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911212813] [2025-03-04 06:54:33,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:54:33,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:54:33,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:54:33,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:54:33,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:54:33,508 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 148 [2025-03-04 06:54:33,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 128 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:54:33,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 148 [2025-03-04 06:54:33,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:54:33,623 INFO L124 PetriNetUnfolderBase]: 216/702 cut-off events. [2025-03-04 06:54:33,623 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2025-03-04 06:54:33,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 702 events. 216/702 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4067 event pairs, 56 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 510. Up to 273 conditions per place. [2025-03-04 06:54:33,629 INFO L140 encePairwiseOnDemand]: 142/148 looper letters, 24 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2025-03-04 06:54:33,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 133 transitions, 343 flow [2025-03-04 06:54:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:54:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:54:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2025-03-04 06:54:33,631 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8918918918918919 [2025-03-04 06:54:33,632 INFO L175 Difference]: Start difference. First operand has 130 places, 128 transitions, 273 flow. Second operand 3 states and 396 transitions. [2025-03-04 06:54:33,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 133 transitions, 343 flow [2025-03-04 06:54:33,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 133 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:54:33,635 INFO L231 Difference]: Finished difference. Result has 129 places, 126 transitions, 277 flow [2025-03-04 06:54:33,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=129, PETRI_TRANSITIONS=126} [2025-03-04 06:54:33,637 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -9 predicate places. [2025-03-04 06:54:33,638 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 126 transitions, 277 flow [2025-03-04 06:54:33,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:54:33,638 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] [2025-03-04 06:54:33,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:54:33,639 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:54:33,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:54:33,640 INFO L85 PathProgramCache]: Analyzing trace with hash -136726003, now seen corresponding path program 1 times [2025-03-04 06:54:33,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:54:33,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492971030] [2025-03-04 06:54:33,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:54:33,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:54:33,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 06:54:33,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 06:54:33,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:54:33,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:54:33,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:54:33,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:54:33,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492971030] [2025-03-04 06:54:33,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492971030] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:54:33,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:54:33,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:54:33,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974982263] [2025-03-04 06:54:33,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:54:33,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:54:33,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:54:33,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:54:33,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:54:33,725 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 148 [2025-03-04 06:54:33,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 126 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:54:33,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 148 [2025-03-04 06:54:33,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:54:33,843 INFO L124 PetriNetUnfolderBase]: 264/908 cut-off events. [2025-03-04 06:54:33,843 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-03-04 06:54:33,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1471 conditions, 908 events. 264/908 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5241 event pairs, 78 based on Foata normal form. 0/808 useless extension candidates. Maximal degree in co-relation 818. Up to 299 conditions per place. [2025-03-04 06:54:33,849 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 24 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2025-03-04 06:54:33,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 130 transitions, 341 flow [2025-03-04 06:54:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:54:33,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:54:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2025-03-04 06:54:33,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8896396396396397 [2025-03-04 06:54:33,851 INFO L175 Difference]: Start difference. First operand has 129 places, 126 transitions, 277 flow. Second operand 3 states and 395 transitions. [2025-03-04 06:54:33,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 130 transitions, 341 flow [2025-03-04 06:54:33,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 130 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:54:33,854 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 276 flow [2025-03-04 06:54:33,854 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2025-03-04 06:54:33,854 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -9 predicate places. [2025-03-04 06:54:33,854 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 276 flow [2025-03-04 06:54:33,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,855 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:54:33,855 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] [2025-03-04 06:54:33,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:54:33,855 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2025-03-04 06:54:33,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:54:33,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1238110310, now seen corresponding path program 1 times [2025-03-04 06:54:33,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:54:33,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690157833] [2025-03-04 06:54:33,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:54:33,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:54:33,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-04 06:54:33,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-04 06:54:33,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:54:33,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:54:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:54:33,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:54:33,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690157833] [2025-03-04 06:54:33,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690157833] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:54:33,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:54:33,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:54:33,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303412247] [2025-03-04 06:54:33,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:54:33,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:54:33,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:54:33,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:54:33,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:54:33,923 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 148 [2025-03-04 06:54:33,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:33,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:54:33,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 148 [2025-03-04 06:54:33,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:54:33,995 INFO L124 PetriNetUnfolderBase]: 237/728 cut-off events. [2025-03-04 06:54:33,995 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2025-03-04 06:54:33,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 728 events. 237/728 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4225 event pairs, 110 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 1211. Up to 292 conditions per place. [2025-03-04 06:54:33,998 INFO L140 encePairwiseOnDemand]: 145/148 looper letters, 0 selfloop transitions, 0 changer transitions 129/129 dead transitions. [2025-03-04 06:54:33,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 129 transitions, 337 flow [2025-03-04 06:54:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:54:33,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:54:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2025-03-04 06:54:34,000 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2025-03-04 06:54:34,000 INFO L175 Difference]: Start difference. First operand has 129 places, 125 transitions, 276 flow. Second operand 3 states and 397 transitions. [2025-03-04 06:54:34,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 129 transitions, 337 flow [2025-03-04 06:54:34,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 129 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:54:34,002 INFO L231 Difference]: Finished difference. Result has 128 places, 0 transitions, 0 flow [2025-03-04 06:54:34,002 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=128, PETRI_TRANSITIONS=0} [2025-03-04 06:54:34,002 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -10 predicate places. [2025-03-04 06:54:34,003 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 0 transitions, 0 flow [2025-03-04 06:54:34,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:54:34,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2025-03-04 06:54:34,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2025-03-04 06:54:34,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2025-03-04 06:54:34,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2025-03-04 06:54:34,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2025-03-04 06:54:34,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2025-03-04 06:54:34,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2025-03-04 06:54:34,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2025-03-04 06:54:34,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:54:34,007 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-04 06:54:34,011 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 06:54:34,011 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 06:54:34,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:54:34 BasicIcfg [2025-03-04 06:54:34,015 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 06:54:34,015 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 06:54:34,016 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 06:54:34,016 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 06:54:34,016 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:54:32" (3/4) ... [2025-03-04 06:54:34,017 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 06:54:34,019 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-04 06:54:34,019 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-04 06:54:34,019 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-04 06:54:34,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-04 06:54:34,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-04 06:54:34,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 06:54:34,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 06:54:34,075 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 06:54:34,076 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 06:54:34,076 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 06:54:34,076 INFO L158 Benchmark]: Toolchain (without parser) took 2216.91ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 105.4MB in the end (delta: 407.8kB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2025-03-04 06:54:34,076 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:54:34,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.61ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 93.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:54:34,077 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.17ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 92.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:54:34,077 INFO L158 Benchmark]: Boogie Preprocessor took 26.54ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.7MB in the end (delta: 928.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 06:54:34,077 INFO L158 Benchmark]: IcfgBuilder took 347.56ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 75.0MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 06:54:34,077 INFO L158 Benchmark]: TraceAbstraction took 1564.79ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 42.0MB in the end (delta: 32.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2025-03-04 06:54:34,077 INFO L158 Benchmark]: Witness Printer took 60.29ms. Allocated memory is still 142.6MB. Free memory was 42.0MB in the beginning and 105.4MB in the end (delta: -63.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 06:54:34,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.61ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 93.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.17ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 92.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.54ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 91.7MB in the end (delta: 928.2kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 347.56ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 75.0MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1564.79ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 42.0MB in the end (delta: 32.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 60.29ms. Allocated memory is still 142.6MB. Free memory was 42.0MB in the beginning and 105.4MB in the end (delta: -63.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 192 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 316 IncrementalHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 40 mSDtfsCounter, 316 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 283 NumberOfCodeBlocks, 283 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 06:54:34,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE