./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/08_rand_cas-race.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/08_rand_cas-race.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 adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 10:43:32,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 10:43:32,821 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 10:43:32,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 10:43:32,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 10:43:32,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 10:43:32,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 10:43:32,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 10:43:32,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 10:43:32,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 10:43:32,852 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 10:43:32,852 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 10:43:32,852 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 10:43:32,852 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 10:43:32,852 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 10:43:32,853 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 10:43:32,854 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 10:43:32,854 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 10:43:32,854 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 10:43:32,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:43:32,854 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 10:43:32,854 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 10:43:32,854 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 10:43:32,854 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 10:43:32,854 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 10:43:32,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 10:43:32,855 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 10:43:32,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 10:43:32,855 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 10:43:32,855 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 10:43:32,855 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 -> adb74bb4036ab42451aee4c4c2c855416fb34747e80c1114ce822e44c6b19376 [2025-03-17 10:43:33,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 10:43:33,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 10:43:33,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 10:43:33,076 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 10:43:33,077 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 10:43:33,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2025-03-17 10:43:34,178 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bfd9cc45/c436126ca9e84b549381342df94d1ebd/FLAG390373777 [2025-03-17 10:43:34,413 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 10:43:34,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas-race.i [2025-03-17 10:43:34,426 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bfd9cc45/c436126ca9e84b549381342df94d1ebd/FLAG390373777 [2025-03-17 10:43:34,715 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bfd9cc45/c436126ca9e84b549381342df94d1ebd [2025-03-17 10:43:34,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 10:43:34,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 10:43:34,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 10:43:34,719 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 10:43:34,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 10:43:34,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:43:34" (1/1) ... [2025-03-17 10:43:34,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21528f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:34, skipping insertion in model container [2025-03-17 10:43:34,724 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:43:34" (1/1) ... [2025-03-17 10:43:34,750 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 10:43:35,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:43:35,038 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 10:43:35,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:43:35,107 INFO L204 MainTranslator]: Completed translation [2025-03-17 10:43:35,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35 WrapperNode [2025-03-17 10:43:35,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 10:43:35,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 10:43:35,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 10:43:35,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 10:43:35,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,148 INFO L138 Inliner]: procedures = 176, calls = 34, calls flagged for inlining = 16, calls inlined = 17, statements flattened = 209 [2025-03-17 10:43:35,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 10:43:35,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 10:43:35,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 10:43:35,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 10:43:35,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,172 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 10:43:35,181 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 10:43:35,181 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 10:43:35,181 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 10:43:35,182 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (1/1) ... [2025-03-17 10:43:35,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:43:35,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:43:35,206 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 10:43:35,208 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 10:43:35,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 10:43:35,225 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-17 10:43:35,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-17 10:43:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 10:43:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 10:43:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 10:43:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 10:43:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 10:43:35,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 10:43:35,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 10:43:35,227 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 10:43:35,332 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 10:43:35,333 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 10:43:35,648 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L726: havoc PseudoRandomUsingAtomic_nextInt_~#casret~0#1.base, PseudoRandomUsingAtomic_nextInt_~#casret~0#1.offset; [2025-03-17 10:43:35,649 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-1: SUMMARY for call ULTIMATE.dealloc(PseudoRandomUsingAtomic_nextInt_~#casret~0#1.base, PseudoRandomUsingAtomic_nextInt_~#casret~0#1.offset); srcloc: null [2025-03-17 10:43:35,670 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 10:43:35,670 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 10:43:35,829 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 10:43:35,830 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 10:43:35,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:43:35 BoogieIcfgContainer [2025-03-17 10:43:35,831 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 10:43:35,832 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 10:43:35,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 10:43:35,836 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 10:43:35,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 10:43:34" (1/3) ... [2025-03-17 10:43:35,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3457b5c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:43:35, skipping insertion in model container [2025-03-17 10:43:35,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:43:35" (2/3) ... [2025-03-17 10:43:35,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3457b5c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:43:35, skipping insertion in model container [2025-03-17 10:43:35,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:43:35" (3/3) ... [2025-03-17 10:43:35,838 INFO L128 eAbstractionObserver]: Analyzing ICFG 08_rand_cas-race.i [2025-03-17 10:43:35,864 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 10:43:35,865 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 08_rand_cas-race.i that has 2 procedures, 158 locations, 1 initial locations, 4 loop locations, and 16 error locations. [2025-03-17 10:43:35,865 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 10:43:35,937 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:43:35,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 171 transitions, 346 flow [2025-03-17 10:43:36,032 INFO L124 PetriNetUnfolderBase]: 13/178 cut-off events. [2025-03-17 10:43:36,034 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:43:36,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 178 events. 13/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 347 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2025-03-17 10:43:36,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 171 transitions, 346 flow [2025-03-17 10:43:36,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 171 transitions, 346 flow [2025-03-17 10:43:36,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:43:36,060 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;@323c23c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:43:36,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-03-17 10:43:36,066 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:43:36,066 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-17 10:43:36,066 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:43:36,067 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:36,067 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] [2025-03-17 10:43:36,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-17 10:43:36,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:36,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1759001946, now seen corresponding path program 1 times [2025-03-17 10:43:36,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:36,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083920287] [2025-03-17 10:43:36,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:36,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:36,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 10:43:36,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 10:43:36,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:36,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:43:36,202 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 10:43:36,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:43:36,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083920287] [2025-03-17 10:43:36,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083920287] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:43:36,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:43:36,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 10:43:36,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369265249] [2025-03-17 10:43:36,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:43:36,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:43:36,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:43:36,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:43:36,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:43:36,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 171 [2025-03-17 10:43:36,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 171 transitions, 346 flow. Second operand has 2 states, 2 states have (on average 144.0) internal successors, (288), 2 states have internal predecessors, (288), 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 10:43:36,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:43:36,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 171 [2025-03-17 10:43:36,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:43:36,312 INFO L124 PetriNetUnfolderBase]: 4/144 cut-off events. [2025-03-17 10:43:36,312 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 10:43:36,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 144 events. 4/144 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 139 event pairs, 0 based on Foata normal form. 15/146 useless extension candidates. Maximal degree in co-relation 129. Up to 6 conditions per place. [2025-03-17 10:43:36,314 INFO L140 encePairwiseOnDemand]: 151/171 looper letters, 5 selfloop transitions, 0 changer transitions 0/141 dead transitions. [2025-03-17 10:43:36,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 141 transitions, 296 flow [2025-03-17 10:43:36,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:43:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 10:43:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2025-03-17 10:43:36,325 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9093567251461988 [2025-03-17 10:43:36,327 INFO L175 Difference]: Start difference. First operand has 161 places, 171 transitions, 346 flow. Second operand 2 states and 311 transitions. [2025-03-17 10:43:36,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 141 transitions, 296 flow [2025-03-17 10:43:36,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 141 transitions, 296 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:43:36,336 INFO L231 Difference]: Finished difference. Result has 141 places, 141 transitions, 286 flow [2025-03-17 10:43:36,339 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=286, PETRI_PLACES=141, PETRI_TRANSITIONS=141} [2025-03-17 10:43:36,341 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -20 predicate places. [2025-03-17 10:43:36,342 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 141 transitions, 286 flow [2025-03-17 10:43:36,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 144.0) internal successors, (288), 2 states have internal predecessors, (288), 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 10:43:36,343 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:36,343 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] [2025-03-17 10:43:36,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 10:43:36,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-17 10:43:36,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:36,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1816264074, now seen corresponding path program 1 times [2025-03-17 10:43:36,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:36,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542387917] [2025-03-17 10:43:36,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:36,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:36,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 10:43:36,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 10:43:36,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:36,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:43:36,428 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 10:43:36,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:43:36,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542387917] [2025-03-17 10:43:36,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542387917] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:43:36,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:43:36,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:43:36,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949684953] [2025-03-17 10:43:36,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:43:36,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:43:36,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:43:36,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:43:36,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:43:36,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 171 [2025-03-17 10:43:36,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 141 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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 10:43:36,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:43:36,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 171 [2025-03-17 10:43:36,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:43:36,501 INFO L124 PetriNetUnfolderBase]: 4/143 cut-off events. [2025-03-17 10:43:36,501 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 10:43:36,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 143 events. 4/143 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 135 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 153. Up to 5 conditions per place. [2025-03-17 10:43:36,502 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 6 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2025-03-17 10:43:36,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 140 transitions, 300 flow [2025-03-17 10:43:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:43:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:43:36,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 426 transitions. [2025-03-17 10:43:36,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8304093567251462 [2025-03-17 10:43:36,506 INFO L175 Difference]: Start difference. First operand has 141 places, 141 transitions, 286 flow. Second operand 3 states and 426 transitions. [2025-03-17 10:43:36,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 140 transitions, 300 flow [2025-03-17 10:43:36,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 140 transitions, 300 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:43:36,513 INFO L231 Difference]: Finished difference. Result has 142 places, 140 transitions, 288 flow [2025-03-17 10:43:36,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=142, PETRI_TRANSITIONS=140} [2025-03-17 10:43:36,514 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -19 predicate places. [2025-03-17 10:43:36,514 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 140 transitions, 288 flow [2025-03-17 10:43:36,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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 10:43:36,514 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:36,514 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] [2025-03-17 10:43:36,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 10:43:36,514 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-17 10:43:36,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:36,515 INFO L85 PathProgramCache]: Analyzing trace with hash 331951316, now seen corresponding path program 1 times [2025-03-17 10:43:36,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:36,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784744495] [2025-03-17 10:43:36,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:36,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:36,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-17 10:43:36,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-17 10:43:36,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:36,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:43:36,537 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:43:36,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-17 10:43:36,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-17 10:43:36,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:36,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:43:36,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:43:36,567 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:43:36,568 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-03-17 10:43:36,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-03-17 10:43:36,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-03-17 10:43:36,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-03-17 10:43:36,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-03-17 10:43:36,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-03-17 10:43:36,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-03-17 10:43:36,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-03-17 10:43:36,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-03-17 10:43:36,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-03-17 10:43:36,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-03-17 10:43:36,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-03-17 10:43:36,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-03-17 10:43:36,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-03-17 10:43:36,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 10:43:36,574 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-17 10:43:36,575 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:43:36,575 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-17 10:43:36,655 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:43:36,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 297 places, 318 transitions, 646 flow [2025-03-17 10:43:36,710 INFO L124 PetriNetUnfolderBase]: 26/334 cut-off events. [2025-03-17 10:43:36,710 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 10:43:36,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 334 events. 26/334 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1190 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 301. Up to 3 conditions per place. [2025-03-17 10:43:36,716 INFO L82 GeneralOperation]: Start removeDead. Operand has 297 places, 318 transitions, 646 flow [2025-03-17 10:43:36,720 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 318 transitions, 646 flow [2025-03-17 10:43:36,721 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:43:36,721 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;@323c23c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:43:36,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-03-17 10:43:36,727 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:43:36,727 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-17 10:43:36,727 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:43:36,727 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:36,727 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] [2025-03-17 10:43:36,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-17 10:43:36,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:36,727 INFO L85 PathProgramCache]: Analyzing trace with hash -377530760, now seen corresponding path program 1 times [2025-03-17 10:43:36,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:36,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027301684] [2025-03-17 10:43:36,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:36,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:36,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 10:43:36,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 10:43:36,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:36,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:43:36,750 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 10:43:36,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:43:36,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027301684] [2025-03-17 10:43:36,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027301684] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:43:36,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:43:36,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 10:43:36,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698063100] [2025-03-17 10:43:36,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:43:36,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:43:36,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:43:36,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:43:36,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:43:36,754 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 318 [2025-03-17 10:43:36,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 318 transitions, 646 flow. Second operand has 2 states, 2 states have (on average 264.0) internal successors, (528), 2 states have internal predecessors, (528), 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 10:43:36,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:43:36,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 318 [2025-03-17 10:43:36,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:43:36,913 INFO L124 PetriNetUnfolderBase]: 48/885 cut-off events. [2025-03-17 10:43:36,914 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-03-17 10:43:36,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 885 events. 48/885 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4896 event pairs, 20 based on Foata normal form. 112/899 useless extension candidates. Maximal degree in co-relation 777. Up to 51 conditions per place. [2025-03-17 10:43:36,919 INFO L140 encePairwiseOnDemand]: 279/318 looper letters, 10 selfloop transitions, 0 changer transitions 0/262 dead transitions. [2025-03-17 10:43:36,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 262 transitions, 554 flow [2025-03-17 10:43:36,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:43:36,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 10:43:36,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 575 transitions. [2025-03-17 10:43:36,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9040880503144654 [2025-03-17 10:43:36,922 INFO L175 Difference]: Start difference. First operand has 297 places, 318 transitions, 646 flow. Second operand 2 states and 575 transitions. [2025-03-17 10:43:36,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 262 transitions, 554 flow [2025-03-17 10:43:36,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 262 transitions, 554 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:43:36,929 INFO L231 Difference]: Finished difference. Result has 260 places, 262 transitions, 534 flow [2025-03-17 10:43:36,929 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=534, PETRI_PLACES=260, PETRI_TRANSITIONS=262} [2025-03-17 10:43:36,930 INFO L279 CegarLoopForPetriNet]: 297 programPoint places, -37 predicate places. [2025-03-17 10:43:36,930 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 262 transitions, 534 flow [2025-03-17 10:43:36,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 264.0) internal successors, (528), 2 states have internal predecessors, (528), 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 10:43:36,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:36,930 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] [2025-03-17 10:43:36,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 10:43:36,930 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-17 10:43:36,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:36,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2029773092, now seen corresponding path program 1 times [2025-03-17 10:43:36,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:36,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745564901] [2025-03-17 10:43:36,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:36,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:36,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 10:43:36,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 10:43:36,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:36,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:43:36,978 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 10:43:36,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:43:36,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745564901] [2025-03-17 10:43:36,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745564901] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:43:36,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:43:36,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:43:36,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585317888] [2025-03-17 10:43:36,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:43:36,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:43:36,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:43:36,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:43:36,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:43:36,996 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 318 [2025-03-17 10:43:36,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 262 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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 10:43:36,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:43:36,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 318 [2025-03-17 10:43:36,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:43:37,257 INFO L124 PetriNetUnfolderBase]: 120/1663 cut-off events. [2025-03-17 10:43:37,257 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2025-03-17 10:43:37,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1852 conditions, 1663 events. 120/1663 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12097 event pairs, 26 based on Foata normal form. 0/1485 useless extension candidates. Maximal degree in co-relation 1847. Up to 92 conditions per place. [2025-03-17 10:43:37,268 INFO L140 encePairwiseOnDemand]: 310/318 looper letters, 27 selfloop transitions, 6 changer transitions 0/277 dead transitions. [2025-03-17 10:43:37,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 277 transitions, 635 flow [2025-03-17 10:43:37,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:43:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:43:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2025-03-17 10:43:37,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8385744234800838 [2025-03-17 10:43:37,271 INFO L175 Difference]: Start difference. First operand has 260 places, 262 transitions, 534 flow. Second operand 3 states and 800 transitions. [2025-03-17 10:43:37,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 277 transitions, 635 flow [2025-03-17 10:43:37,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 277 transitions, 635 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:43:37,277 INFO L231 Difference]: Finished difference. Result has 264 places, 268 transitions, 586 flow [2025-03-17 10:43:37,277 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=264, PETRI_TRANSITIONS=268} [2025-03-17 10:43:37,278 INFO L279 CegarLoopForPetriNet]: 297 programPoint places, -33 predicate places. [2025-03-17 10:43:37,278 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 268 transitions, 586 flow [2025-03-17 10:43:37,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 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 10:43:37,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:37,280 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] [2025-03-17 10:43:37,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 10:43:37,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-17 10:43:37,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:37,280 INFO L85 PathProgramCache]: Analyzing trace with hash 243495643, now seen corresponding path program 1 times [2025-03-17 10:43:37,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:37,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890807643] [2025-03-17 10:43:37,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:37,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:37,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 10:43:37,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 10:43:37,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:37,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:43:37,290 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:43:37,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 10:43:37,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 10:43:37,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:37,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:43:37,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:43:37,301 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:43:37,302 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-03-17 10:43:37,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-03-17 10:43:37,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-03-17 10:43:37,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-03-17 10:43:37,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-03-17 10:43:37,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-03-17 10:43:37,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-03-17 10:43:37,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-03-17 10:43:37,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-03-17 10:43:37,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-03-17 10:43:37,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-03-17 10:43:37,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-03-17 10:43:37,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-03-17 10:43:37,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-03-17 10:43:37,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-03-17 10:43:37,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-03-17 10:43:37,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-03-17 10:43:37,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-03-17 10:43:37,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-03-17 10:43:37,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-03-17 10:43:37,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-03-17 10:43:37,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-03-17 10:43:37,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 10:43:37,306 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-17 10:43:37,307 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:43:37,308 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-17 10:43:37,399 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:43:37,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 433 places, 465 transitions, 948 flow [2025-03-17 10:43:37,483 INFO L124 PetriNetUnfolderBase]: 39/490 cut-off events. [2025-03-17 10:43:37,483 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-17 10:43:37,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 490 events. 39/490 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2195 event pairs, 0 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 447. Up to 4 conditions per place. [2025-03-17 10:43:37,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 433 places, 465 transitions, 948 flow [2025-03-17 10:43:37,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 433 places, 465 transitions, 948 flow [2025-03-17 10:43:37,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:43:37,496 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;@323c23c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:43:37,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2025-03-17 10:43:37,499 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:43:37,499 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-17 10:43:37,499 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:43:37,499 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:37,499 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] [2025-03-17 10:43:37,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-17 10:43:37,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:37,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1396418614, now seen corresponding path program 1 times [2025-03-17 10:43:37,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:37,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004394334] [2025-03-17 10:43:37,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:37,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:37,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 10:43:37,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 10:43:37,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:37,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:43:37,523 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 10:43:37,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:43:37,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004394334] [2025-03-17 10:43:37,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004394334] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:43:37,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:43:37,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 10:43:37,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275666864] [2025-03-17 10:43:37,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:43:37,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:43:37,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:43:37,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:43:37,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:43:37,527 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 465 [2025-03-17 10:43:37,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 465 transitions, 948 flow. Second operand has 2 states, 2 states have (on average 384.0) internal successors, (768), 2 states have internal predecessors, (768), 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 10:43:37,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:43:37,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 465 [2025-03-17 10:43:37,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:43:38,212 INFO L124 PetriNetUnfolderBase]: 372/4781 cut-off events. [2025-03-17 10:43:38,212 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2025-03-17 10:43:38,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5278 conditions, 4781 events. 372/4781 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 46510 event pairs, 220 based on Foata normal form. 753/4975 useless extension candidates. Maximal degree in co-relation 4173. Up to 376 conditions per place. [2025-03-17 10:43:38,259 INFO L140 encePairwiseOnDemand]: 407/465 looper letters, 15 selfloop transitions, 0 changer transitions 0/383 dead transitions. [2025-03-17 10:43:38,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 383 transitions, 814 flow [2025-03-17 10:43:38,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:43:38,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 10:43:38,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 839 transitions. [2025-03-17 10:43:38,263 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9021505376344086 [2025-03-17 10:43:38,263 INFO L175 Difference]: Start difference. First operand has 433 places, 465 transitions, 948 flow. Second operand 2 states and 839 transitions. [2025-03-17 10:43:38,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 383 transitions, 814 flow [2025-03-17 10:43:38,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 383 transitions, 812 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-17 10:43:38,268 INFO L231 Difference]: Finished difference. Result has 379 places, 383 transitions, 782 flow [2025-03-17 10:43:38,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=782, PETRI_PLACES=379, PETRI_TRANSITIONS=383} [2025-03-17 10:43:38,269 INFO L279 CegarLoopForPetriNet]: 433 programPoint places, -54 predicate places. [2025-03-17 10:43:38,269 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 383 transitions, 782 flow [2025-03-17 10:43:38,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 384.0) internal successors, (768), 2 states have internal predecessors, (768), 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 10:43:38,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:38,270 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] [2025-03-17 10:43:38,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 10:43:38,270 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-17 10:43:38,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:38,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1928442418, now seen corresponding path program 1 times [2025-03-17 10:43:38,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:38,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573466290] [2025-03-17 10:43:38,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:38,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:38,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 10:43:38,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 10:43:38,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:38,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:43:38,302 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 10:43:38,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:43:38,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573466290] [2025-03-17 10:43:38,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573466290] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:43:38,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:43:38,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:43:38,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822697714] [2025-03-17 10:43:38,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:43:38,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:43:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:43:38,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:43:38,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:43:38,326 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 465 [2025-03-17 10:43:38,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 383 transitions, 782 flow. Second operand has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 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 10:43:38,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:43:38,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 465 [2025-03-17 10:43:38,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:43:40,182 INFO L124 PetriNetUnfolderBase]: 2015/17565 cut-off events. [2025-03-17 10:43:40,182 INFO L125 PetriNetUnfolderBase]: For 289/289 co-relation queries the response was YES. [2025-03-17 10:43:40,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20302 conditions, 17565 events. 2015/17565 cut-off events. For 289/289 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 227656 event pairs, 569 based on Foata normal form. 0/15601 useless extension candidates. Maximal degree in co-relation 20296. Up to 1412 conditions per place. [2025-03-17 10:43:40,317 INFO L140 encePairwiseOnDemand]: 453/465 looper letters, 41 selfloop transitions, 9 changer transitions 0/406 dead transitions. [2025-03-17 10:43:40,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 406 transitions, 938 flow [2025-03-17 10:43:40,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:43:40,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:43:40,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1166 transitions. [2025-03-17 10:43:40,321 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8358422939068101 [2025-03-17 10:43:40,321 INFO L175 Difference]: Start difference. First operand has 379 places, 383 transitions, 782 flow. Second operand 3 states and 1166 transitions. [2025-03-17 10:43:40,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 406 transitions, 938 flow [2025-03-17 10:43:40,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 406 transitions, 938 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:43:40,326 INFO L231 Difference]: Finished difference. Result has 383 places, 392 transitions, 860 flow [2025-03-17 10:43:40,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=860, PETRI_PLACES=383, PETRI_TRANSITIONS=392} [2025-03-17 10:43:40,327 INFO L279 CegarLoopForPetriNet]: 433 programPoint places, -50 predicate places. [2025-03-17 10:43:40,327 INFO L471 AbstractCegarLoop]: Abstraction has has 383 places, 392 transitions, 860 flow [2025-03-17 10:43:40,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.3333333333333) internal successors, (1117), 3 states have internal predecessors, (1117), 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 10:43:40,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:43:40,328 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] [2025-03-17 10:43:40,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 10:43:40,328 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-17 10:43:40,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:43:40,329 INFO L85 PathProgramCache]: Analyzing trace with hash -920914178, now seen corresponding path program 1 times [2025-03-17 10:43:40,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:43:40,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315486297] [2025-03-17 10:43:40,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:43:40,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:43:40,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 10:43:40,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 10:43:40,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:43:40,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:43:40,651 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 10:43:40,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:43:40,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315486297] [2025-03-17 10:43:40,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315486297] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:43:40,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:43:40,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 10:43:40,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059872856] [2025-03-17 10:43:40,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:43:40,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 10:43:40,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:43:40,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 10:43:40,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 10:43:40,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 465 [2025-03-17 10:43:40,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 392 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 321.6666666666667) internal successors, (1930), 6 states have internal predecessors, (1930), 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 10:43:40,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:43:40,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 465 [2025-03-17 10:43:40,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:44:06,828 INFO L124 PetriNetUnfolderBase]: 89059/296469 cut-off events. [2025-03-17 10:44:06,828 INFO L125 PetriNetUnfolderBase]: For 4673/4678 co-relation queries the response was YES. [2025-03-17 10:44:08,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432431 conditions, 296469 events. 89059/296469 cut-off events. For 4673/4678 co-relation queries the response was YES. Maximal size of possible extension queue 4418. Compared 4703447 event pairs, 52444 based on Foata normal form. 0/271285 useless extension candidates. Maximal degree in co-relation 432423. Up to 103215 conditions per place. [2025-03-17 10:44:09,579 INFO L140 encePairwiseOnDemand]: 418/465 looper letters, 163 selfloop transitions, 130 changer transitions 0/607 dead transitions. [2025-03-17 10:44:09,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 607 transitions, 1916 flow [2025-03-17 10:44:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 10:44:09,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 10:44:09,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2214 transitions. [2025-03-17 10:44:09,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7935483870967742 [2025-03-17 10:44:09,584 INFO L175 Difference]: Start difference. First operand has 383 places, 392 transitions, 860 flow. Second operand 6 states and 2214 transitions. [2025-03-17 10:44:09,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 607 transitions, 1916 flow [2025-03-17 10:44:09,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 607 transitions, 1898 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 10:44:09,605 INFO L231 Difference]: Finished difference. Result has 390 places, 533 transitions, 1702 flow [2025-03-17 10:44:09,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=465, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1702, PETRI_PLACES=390, PETRI_TRANSITIONS=533} [2025-03-17 10:44:09,606 INFO L279 CegarLoopForPetriNet]: 433 programPoint places, -43 predicate places. [2025-03-17 10:44:09,606 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 533 transitions, 1702 flow [2025-03-17 10:44:09,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.6666666666667) internal successors, (1930), 6 states have internal predecessors, (1930), 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 10:44:09,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:09,608 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] [2025-03-17 10:44:09,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 10:44:09,608 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-17 10:44:09,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:09,608 INFO L85 PathProgramCache]: Analyzing trace with hash 430564551, now seen corresponding path program 1 times [2025-03-17 10:44:09,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:09,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272491009] [2025-03-17 10:44:09,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:09,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:09,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 10:44:09,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 10:44:09,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:09,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:09,626 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 10:44:09,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 10:44:09,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 10:44:09,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:09,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 10:44:09,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 10:44:09,636 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 10:44:09,636 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2025-03-17 10:44:09,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2025-03-17 10:44:09,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2025-03-17 10:44:09,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2025-03-17 10:44:09,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2025-03-17 10:44:09,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2025-03-17 10:44:09,637 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2025-03-17 10:44:09,638 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2025-03-17 10:44:09,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2025-03-17 10:44:09,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2025-03-17 10:44:09,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 10:44:09,640 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-17 10:44:09,641 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 10:44:09,641 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-17 10:44:09,719 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:44:09,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 569 places, 612 transitions, 1252 flow [2025-03-17 10:44:09,810 INFO L124 PetriNetUnfolderBase]: 52/646 cut-off events. [2025-03-17 10:44:09,810 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-17 10:44:09,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 646 events. 52/646 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3291 event pairs, 0 based on Foata normal form. 0/525 useless extension candidates. Maximal degree in co-relation 593. Up to 5 conditions per place. [2025-03-17 10:44:09,824 INFO L82 GeneralOperation]: Start removeDead. Operand has 569 places, 612 transitions, 1252 flow [2025-03-17 10:44:09,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 569 places, 612 transitions, 1252 flow [2025-03-17 10:44:09,832 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:44:09,833 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;@323c23c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:44:09,833 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2025-03-17 10:44:09,835 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:44:09,835 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-17 10:44:09,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:44:09,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:09,835 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] [2025-03-17 10:44:09,835 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-03-17 10:44:09,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:09,835 INFO L85 PathProgramCache]: Analyzing trace with hash -520688868, now seen corresponding path program 1 times [2025-03-17 10:44:09,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:09,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137199661] [2025-03-17 10:44:09,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:09,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:09,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 10:44:09,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 10:44:09,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:09,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:44:09,851 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 10:44:09,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:44:09,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137199661] [2025-03-17 10:44:09,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137199661] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:44:09,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:44:09,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 10:44:09,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324004519] [2025-03-17 10:44:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:44:09,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:44:09,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:44:09,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:44:09,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:44:09,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 612 [2025-03-17 10:44:09,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 612 transitions, 1252 flow. Second operand has 2 states, 2 states have (on average 504.0) internal successors, (1008), 2 states have internal predecessors, (1008), 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 10:44:09,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:44:09,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 612 [2025-03-17 10:44:09,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:44:13,284 INFO L124 PetriNetUnfolderBase]: 2496/24852 cut-off events. [2025-03-17 10:44:13,284 INFO L125 PetriNetUnfolderBase]: For 1422/1422 co-relation queries the response was YES. [2025-03-17 10:44:13,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28100 conditions, 24852 events. 2496/24852 cut-off events. For 1422/1422 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 337952 event pairs, 1720 based on Foata normal form. 4868/26770 useless extension candidates. Maximal degree in co-relation 21949. Up to 2501 conditions per place. [2025-03-17 10:44:13,537 INFO L140 encePairwiseOnDemand]: 535/612 looper letters, 20 selfloop transitions, 0 changer transitions 0/504 dead transitions. [2025-03-17 10:44:13,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 504 transitions, 1076 flow [2025-03-17 10:44:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:44:13,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 10:44:13,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1103 transitions. [2025-03-17 10:44:13,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9011437908496732 [2025-03-17 10:44:13,541 INFO L175 Difference]: Start difference. First operand has 569 places, 612 transitions, 1252 flow. Second operand 2 states and 1103 transitions. [2025-03-17 10:44:13,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 504 transitions, 1076 flow [2025-03-17 10:44:13,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 504 transitions, 1070 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-17 10:44:13,546 INFO L231 Difference]: Finished difference. Result has 498 places, 504 transitions, 1030 flow [2025-03-17 10:44:13,546 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=612, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=504, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1030, PETRI_PLACES=498, PETRI_TRANSITIONS=504} [2025-03-17 10:44:13,547 INFO L279 CegarLoopForPetriNet]: 569 programPoint places, -71 predicate places. [2025-03-17 10:44:13,547 INFO L471 AbstractCegarLoop]: Abstraction has has 498 places, 504 transitions, 1030 flow [2025-03-17 10:44:13,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 504.0) internal successors, (1008), 2 states have internal predecessors, (1008), 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 10:44:13,548 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:44:13,548 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] [2025-03-17 10:44:13,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 10:44:13,548 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-03-17 10:44:13,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:44:13,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2129245024, now seen corresponding path program 1 times [2025-03-17 10:44:13,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:44:13,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715286975] [2025-03-17 10:44:13,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:44:13,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:44:13,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 10:44:13,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 10:44:13,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:44:13,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:44:13,563 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 10:44:13,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:44:13,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715286975] [2025-03-17 10:44:13,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715286975] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:44:13,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:44:13,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:44:13,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490103316] [2025-03-17 10:44:13,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:44:13,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:44:13,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:44:13,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:44:13,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:44:13,586 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 487 out of 612 [2025-03-17 10:44:13,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 504 transitions, 1030 flow. Second operand has 3 states, 3 states have (on average 488.3333333333333) internal successors, (1465), 3 states have internal predecessors, (1465), 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 10:44:13,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:44:13,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 487 of 612 [2025-03-17 10:44:13,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand