./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/10_fmaxsym_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 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-ext/10_fmaxsym_cas.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 a11d0cba01cb66911cac56797cb36d325dc008752ffb55c25c965bd0644c21c3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 10:44:07,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 10:44:07,080 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 10:44:07,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 10:44:07,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 10:44:07,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 10:44:07,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 10:44:07,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 10:44:07,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 10:44:07,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 10:44:07,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 10:44:07,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 10:44:07,105 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 10:44:07,105 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 10:44:07,105 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 10:44:07,105 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 10:44:07,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 10:44:07,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 10:44:07,106 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:44:07,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 10:44:07,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 10:44:07,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 10:44:07,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 10:44:07,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 10:44:07,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 10:44:07,107 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 10:44:07,107 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 -> a11d0cba01cb66911cac56797cb36d325dc008752ffb55c25c965bd0644c21c3 [2025-03-17 10:44:07,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 10:44:07,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 10:44:07,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 10:44:07,323 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 10:44:07,323 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 10:44:07,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/10_fmaxsym_cas.i [2025-03-17 10:44:08,486 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a2f651f7/42f1db75778f4125bfca94d9a87323a5/FLAG6cbeca7a3 [2025-03-17 10:44:08,748 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 10:44:08,749 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/10_fmaxsym_cas.i [2025-03-17 10:44:08,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a2f651f7/42f1db75778f4125bfca94d9a87323a5/FLAG6cbeca7a3 [2025-03-17 10:44:09,063 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a2f651f7/42f1db75778f4125bfca94d9a87323a5 [2025-03-17 10:44:09,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 10:44:09,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 10:44:09,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 10:44:09,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 10:44:09,070 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 10:44:09,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29aaf455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09, skipping insertion in model container [2025-03-17 10:44:09,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 10:44:09,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:44:09,360 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 10:44:09,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:44:09,426 INFO L204 MainTranslator]: Completed translation [2025-03-17 10:44:09,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09 WrapperNode [2025-03-17 10:44:09,427 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 10:44:09,428 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 10:44:09,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 10:44:09,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 10:44:09,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,454 INFO L138 Inliner]: procedures = 170, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2025-03-17 10:44:09,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 10:44:09,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 10:44:09,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 10:44:09,456 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 10:44:09,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,469 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,471 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 10:44:09,473 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 10:44:09,473 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 10:44:09,474 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 10:44:09,474 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (1/1) ... [2025-03-17 10:44:09,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:44:09,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:44:09,496 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) [2025-03-17 10:44:09,498 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 [2025-03-17 10:44:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 10:44:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-17 10:44:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-17 10:44:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 10:44:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 10:44:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 10:44:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 10:44:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 10:44:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 10:44:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 10:44:09,515 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 10:44:09,601 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 10:44:09,602 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 10:44:09,839 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 10:44:09,839 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 10:44:09,945 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 10:44:09,945 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 10:44:09,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:44:09 BoogieIcfgContainer [2025-03-17 10:44:09,946 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 10:44:09,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 10:44:09,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 10:44:09,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 10:44:09,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 10:44:09" (1/3) ... [2025-03-17 10:44:09,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc6763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:44:09, skipping insertion in model container [2025-03-17 10:44:09,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:44:09" (2/3) ... [2025-03-17 10:44:09,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc6763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:44:09, skipping insertion in model container [2025-03-17 10:44:09,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:44:09" (3/3) ... [2025-03-17 10:44:09,954 INFO L128 eAbstractionObserver]: Analyzing ICFG 10_fmaxsym_cas.i [2025-03-17 10:44:09,965 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 10:44:09,967 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 10_fmaxsym_cas.i that has 2 procedures, 110 locations, 1 initial locations, 3 loop locations, and 8 error locations. [2025-03-17 10:44:09,967 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 10:44:10,061 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:44:10,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 117 transitions, 238 flow [2025-03-17 10:44:10,124 INFO L124 PetriNetUnfolderBase]: 7/124 cut-off events. [2025-03-17 10:44:10,127 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:44:10,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 124 events. 7/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 139 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 95. Up to 3 conditions per place. [2025-03-17 10:44:10,132 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 117 transitions, 238 flow [2025-03-17 10:44:10,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 117 transitions, 238 flow [2025-03-17 10:44:10,148 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:44:10,156 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;@170a587f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:44:10,156 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-03-17 10:44:10,169 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:44:10,169 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2025-03-17 10:44:10,169 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:44:10,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:10,171 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2025-03-17 10:44:10,172 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2025-03-17 10:44:10,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:10,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1241291303, now seen corresponding path program 1 times [2025-03-17 10:44:10,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:10,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425994466] [2025-03-17 10:44:10,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:10,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:10,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 10:44:10,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 10:44:10,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:10,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:10,268 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:44:10,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 10:44:10,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 10:44:10,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:10,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:10,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:44:10,307 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:44:10,308 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2025-03-17 10:44:10,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2025-03-17 10:44:10,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2025-03-17 10:44:10,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2025-03-17 10:44:10,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2025-03-17 10:44:10,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2025-03-17 10:44:10,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2025-03-17 10:44:10,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2025-03-17 10:44:10,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2025-03-17 10:44:10,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2025-03-17 10:44:10,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2025-03-17 10:44:10,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2025-03-17 10:44:10,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2025-03-17 10:44:10,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2025-03-17 10:44:10,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2025-03-17 10:44:10,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2025-03-17 10:44:10,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2025-03-17 10:44:10,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 10:44:10,314 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-17 10:44:10,317 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:44:10,317 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-17 10:44:10,379 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:44:10,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 204 transitions, 418 flow [2025-03-17 10:44:10,442 INFO L124 PetriNetUnfolderBase]: 14/220 cut-off events. [2025-03-17 10:44:10,442 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 10:44:10,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 220 events. 14/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 532 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 181. Up to 3 conditions per place. [2025-03-17 10:44:10,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 204 transitions, 418 flow [2025-03-17 10:44:10,453 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 204 transitions, 418 flow [2025-03-17 10:44:10,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:44:10,454 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;@170a587f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:44:10,454 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2025-03-17 10:44:10,466 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:44:10,466 INFO L124 PetriNetUnfolderBase]: 1/66 cut-off events. [2025-03-17 10:44:10,466 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 10:44:10,466 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:10,466 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 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] [2025-03-17 10:44:10,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2025-03-17 10:44:10,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:10,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1890419076, now seen corresponding path program 1 times [2025-03-17 10:44:10,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:10,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904379325] [2025-03-17 10:44:10,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:10,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:10,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 10:44:10,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 10:44:10,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:10,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:10,497 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:44:10,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 10:44:10,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 10:44:10,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:10,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:10,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:44:10,513 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2025-03-17 10:44:10,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2025-03-17 10:44:10,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2025-03-17 10:44:10,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2025-03-17 10:44:10,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2025-03-17 10:44:10,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2025-03-17 10:44:10,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2025-03-17 10:44:10,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2025-03-17 10:44:10,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2025-03-17 10:44:10,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 10:44:10,515 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-17 10:44:10,515 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:44:10,515 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-17 10:44:10,605 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:44:10,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 277 places, 291 transitions, 600 flow [2025-03-17 10:44:10,672 INFO L124 PetriNetUnfolderBase]: 21/316 cut-off events. [2025-03-17 10:44:10,672 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-17 10:44:10,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 316 events. 21/316 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1034 event pairs, 0 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 267. Up to 4 conditions per place. [2025-03-17 10:44:10,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 277 places, 291 transitions, 600 flow [2025-03-17 10:44:10,686 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 277 places, 291 transitions, 600 flow [2025-03-17 10:44:10,688 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:44:10,689 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;@170a587f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:44:10,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-03-17 10:44:10,700 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:44:10,701 INFO L124 PetriNetUnfolderBase]: 2/94 cut-off events. [2025-03-17 10:44:10,701 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-17 10:44:10,702 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:10,702 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:44:10,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-17 10:44:10,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:10,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1615687852, now seen corresponding path program 1 times [2025-03-17 10:44:10,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:10,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368242841] [2025-03-17 10:44:10,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:10,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:10,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 10:44:10,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 10:44:10,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:10,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:10,728 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:44:10,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 10:44:10,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 10:44:10,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:10,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:10,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:44:10,755 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-03-17 10:44:10,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-03-17 10:44:10,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-03-17 10:44:10,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 10:44:10,756 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-17 10:44:10,757 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:44:10,757 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-17 10:44:10,868 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:44:10,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 359 places, 378 transitions, 784 flow [2025-03-17 10:44:10,943 INFO L124 PetriNetUnfolderBase]: 28/412 cut-off events. [2025-03-17 10:44:10,943 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-17 10:44:10,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 412 events. 28/412 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1593 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 353. Up to 5 conditions per place. [2025-03-17 10:44:10,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 359 places, 378 transitions, 784 flow [2025-03-17 10:44:10,956 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 378 transitions, 784 flow [2025-03-17 10:44:10,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:44:10,958 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;@170a587f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:44:10,958 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2025-03-17 10:44:10,991 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:44:10,991 INFO L124 PetriNetUnfolderBase]: 3/135 cut-off events. [2025-03-17 10:44:10,991 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-17 10:44:10,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:10,991 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:44:10,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-03-17 10:44:10,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:10,992 INFO L85 PathProgramCache]: Analyzing trace with hash 952999945, now seen corresponding path program 1 times [2025-03-17 10:44:10,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:10,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273780450] [2025-03-17 10:44:10,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:10,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:11,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 10:44:11,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 10:44:11,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:11,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:11,021 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:44:11,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 10:44:11,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 10:44:11,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:11,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:11,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:44:11,049 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:44:11,049 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2025-03-17 10:44:11,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2025-03-17 10:44:11,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2025-03-17 10:44:11,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2025-03-17 10:44:11,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2025-03-17 10:44:11,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2025-03-17 10:44:11,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2025-03-17 10:44:11,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2025-03-17 10:44:11,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2025-03-17 10:44:11,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2025-03-17 10:44:11,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2025-03-17 10:44:11,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2025-03-17 10:44:11,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2025-03-17 10:44:11,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2025-03-17 10:44:11,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2025-03-17 10:44:11,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2025-03-17 10:44:11,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2025-03-17 10:44:11,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2025-03-17 10:44:11,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 10:44:11,053 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-17 10:44:11,053 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:44:11,053 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2025-03-17 10:44:11,162 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:44:11,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 465 transitions, 970 flow [2025-03-17 10:44:11,284 INFO L124 PetriNetUnfolderBase]: 35/508 cut-off events. [2025-03-17 10:44:11,285 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-03-17 10:44:11,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 508 events. 35/508 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2172 event pairs, 0 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 439. Up to 6 conditions per place. [2025-03-17 10:44:11,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 465 transitions, 970 flow [2025-03-17 10:44:11,302 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 441 places, 465 transitions, 970 flow [2025-03-17 10:44:11,303 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:44:11,304 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;@170a587f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:44:11,304 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-03-17 10:44:11,326 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:44:11,326 INFO L124 PetriNetUnfolderBase]: 3/153 cut-off events. [2025-03-17 10:44:11,326 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-17 10:44:11,326 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:11,326 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] [2025-03-17 10:44:11,331 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-17 10:44:11,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:11,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1962505148, now seen corresponding path program 1 times [2025-03-17 10:44:11,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:11,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784781297] [2025-03-17 10:44:11,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:11,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:11,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 10:44:11,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 10:44:11,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:11,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:44:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:44:11,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:44:11,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784781297] [2025-03-17 10:44:11,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784781297] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:44:11,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:44:11,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:44:11,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089007966] [2025-03-17 10:44:11,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:44:11,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:44:11,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:44:11,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:44:11,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:44:13,009 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 397 out of 465 [2025-03-17 10:44:13,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 465 transitions, 970 flow. Second operand has 6 states, 6 states have (on average 398.6666666666667) internal successors, (2392), 6 states have internal predecessors, (2392), 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) [2025-03-17 10:44:13,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:44:13,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 397 of 465 [2025-03-17 10:44:13,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:44:17,576 INFO L124 PetriNetUnfolderBase]: 1859/18343 cut-off events. [2025-03-17 10:44:17,576 INFO L125 PetriNetUnfolderBase]: For 3507/3507 co-relation queries the response was YES. [2025-03-17 10:44:17,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21477 conditions, 18343 events. 1859/18343 cut-off events. For 3507/3507 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 228911 event pairs, 702 based on Foata normal form. 3735/19756 useless extension candidates. Maximal degree in co-relation 9363. Up to 1556 conditions per place. [2025-03-17 10:44:17,908 INFO L140 encePairwiseOnDemand]: 412/465 looper letters, 37 selfloop transitions, 23 changer transitions 0/449 dead transitions. [2025-03-17 10:44:17,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 449 transitions, 1186 flow [2025-03-17 10:44:17,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:44:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:44:17,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2623 transitions. [2025-03-17 10:44:17,930 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9401433691756272 [2025-03-17 10:44:17,931 INFO L175 Difference]: Start difference. First operand has 441 places, 465 transitions, 970 flow. Second operand 6 states and 2623 transitions. [2025-03-17 10:44:17,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 449 transitions, 1186 flow [2025-03-17 10:44:17,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 449 transitions, 1126 flow, removed 30 selfloop flow, removed 0 redundant places. [2025-03-17 10:44:17,955 INFO L231 Difference]: Finished difference. Result has 417 places, 433 transitions, 1008 flow [2025-03-17 10:44:17,957 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1008, PETRI_PLACES=417, PETRI_TRANSITIONS=433} [2025-03-17 10:44:17,959 INFO L279 CegarLoopForPetriNet]: 441 programPoint places, -24 predicate places. [2025-03-17 10:44:17,962 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 433 transitions, 1008 flow [2025-03-17 10:44:17,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 398.6666666666667) internal successors, (2392), 6 states have internal predecessors, (2392), 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) [2025-03-17 10:44:17,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:17,963 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 10:44:17,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 10:44:17,963 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-17 10:44:17,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:17,964 INFO L85 PathProgramCache]: Analyzing trace with hash 165851187, now seen corresponding path program 1 times [2025-03-17 10:44:17,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:17,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546061145] [2025-03-17 10:44:17,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:17,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:17,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 10:44:17,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 10:44:17,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:17,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:17,984 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:44:17,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 10:44:17,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 10:44:17,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:17,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:18,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:44:18,001 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-03-17 10:44:18,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-03-17 10:44:18,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-03-17 10:44:18,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-03-17 10:44:18,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-03-17 10:44:18,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-03-17 10:44:18,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-03-17 10:44:18,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-03-17 10:44:18,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-03-17 10:44:18,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-03-17 10:44:18,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-03-17 10:44:18,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-03-17 10:44:18,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-03-17 10:44:18,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-03-17 10:44:18,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-03-17 10:44:18,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 10:44:18,007 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 10:44:18,008 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:44:18,008 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2025-03-17 10:44:18,099 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:44:18,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 523 places, 552 transitions, 1158 flow [2025-03-17 10:44:18,189 INFO L124 PetriNetUnfolderBase]: 42/604 cut-off events. [2025-03-17 10:44:18,189 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-03-17 10:44:18,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 604 events. 42/604 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2774 event pairs, 0 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 527. Up to 7 conditions per place. [2025-03-17 10:44:18,205 INFO L82 GeneralOperation]: Start removeDead. Operand has 523 places, 552 transitions, 1158 flow [2025-03-17 10:44:18,211 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 523 places, 552 transitions, 1158 flow [2025-03-17 10:44:18,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:44:18,212 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;@170a587f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:44:18,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2025-03-17 10:44:18,221 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:44:18,221 INFO L124 PetriNetUnfolderBase]: 3/153 cut-off events. [2025-03-17 10:44:18,222 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-17 10:44:18,222 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:18,222 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] [2025-03-17 10:44:18,222 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2025-03-17 10:44:18,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:18,223 INFO L85 PathProgramCache]: Analyzing trace with hash -633214438, now seen corresponding path program 1 times [2025-03-17 10:44:18,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:18,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980160439] [2025-03-17 10:44:18,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:18,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:18,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 10:44:18,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 10:44:18,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:18,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:44:18,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:44:18,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:44:18,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980160439] [2025-03-17 10:44:18,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980160439] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:44:18,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:44:18,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:44:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121660103] [2025-03-17 10:44:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:44:18,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:44:18,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:44:18,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:44:18,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:44:19,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 552 [2025-03-17 10:44:19,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 552 transitions, 1158 flow. Second operand has 6 states, 6 states have (on average 474.6666666666667) internal successors, (2848), 6 states have internal predecessors, (2848), 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) [2025-03-17 10:44:19,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:44:19,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 552 [2025-03-17 10:44:19,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:44:30,359 INFO L124 PetriNetUnfolderBase]: 4446/39259 cut-off events. [2025-03-17 10:44:30,360 INFO L125 PetriNetUnfolderBase]: For 10549/10549 co-relation queries the response was YES. [2025-03-17 10:44:31,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46879 conditions, 39259 events. 4446/39259 cut-off events. For 10549/10549 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 550423 event pairs, 1856 based on Foata normal form. 9747/44050 useless extension candidates. Maximal degree in co-relation 21414. Up to 3796 conditions per place. [2025-03-17 10:44:31,651 INFO L140 encePairwiseOnDemand]: 490/552 looper letters, 43 selfloop transitions, 27 changer transitions 0/534 dead transitions. [2025-03-17 10:44:31,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 534 transitions, 1442 flow [2025-03-17 10:44:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:44:31,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:44:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3129 transitions. [2025-03-17 10:44:31,659 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9447463768115942 [2025-03-17 10:44:31,659 INFO L175 Difference]: Start difference. First operand has 523 places, 552 transitions, 1158 flow. Second operand 6 states and 3129 transitions. [2025-03-17 10:44:31,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 534 transitions, 1442 flow [2025-03-17 10:44:31,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 534 transitions, 1342 flow, removed 50 selfloop flow, removed 0 redundant places. [2025-03-17 10:44:31,671 INFO L231 Difference]: Finished difference. Result has 493 places, 514 transitions, 1194 flow [2025-03-17 10:44:31,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=552, PETRI_DIFFERENCE_MINUEND_FLOW=1010, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1194, PETRI_PLACES=493, PETRI_TRANSITIONS=514} [2025-03-17 10:44:31,673 INFO L279 CegarLoopForPetriNet]: 523 programPoint places, -30 predicate places. [2025-03-17 10:44:31,674 INFO L471 AbstractCegarLoop]: Abstraction has has 493 places, 514 transitions, 1194 flow [2025-03-17 10:44:31,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 474.6666666666667) internal successors, (2848), 6 states have internal predecessors, (2848), 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) [2025-03-17 10:44:31,675 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:31,675 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2025-03-17 10:44:31,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 10:44:31,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2025-03-17 10:44:31,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:31,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1720679639, now seen corresponding path program 1 times [2025-03-17 10:44:31,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:31,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158390364] [2025-03-17 10:44:31,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:31,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:31,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-17 10:44:31,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-17 10:44:31,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:31,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:44:31,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:44:31,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:44:31,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158390364] [2025-03-17 10:44:31,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158390364] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:44:31,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:44:31,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:44:31,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15244356] [2025-03-17 10:44:31,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:44:31,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:44:31,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:44:31,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:44:31,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:44:32,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 552 [2025-03-17 10:44:32,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 514 transitions, 1194 flow. Second operand has 6 states, 6 states have (on average 474.8333333333333) internal successors, (2849), 6 states have internal predecessors, (2849), 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) [2025-03-17 10:44:32,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:44:32,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 552 [2025-03-17 10:44:32,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand