./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:13:56,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:13:56,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:13:56,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:13:57,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:13:57,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:13:57,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:13:57,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:13:57,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:13:57,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:13:57,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:13:57,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:13:57,026 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:13:57,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:13:57,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:13:57,027 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:13:57,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:13:57,028 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:13:57,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:13:57,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:13:57,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:13:57,029 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:13:57,029 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:13:57,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:13:57,029 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb [2025-03-13 22:13:57,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:13:57,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:13:57,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:13:57,272 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:13:57,272 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:13:57,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2025-03-13 22:13:58,426 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740eabec5/591d25592e274757ae578150628796ee/FLAG906ba42b2 [2025-03-13 22:13:58,678 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:13:58,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2025-03-13 22:13:58,688 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740eabec5/591d25592e274757ae578150628796ee/FLAG906ba42b2 [2025-03-13 22:13:58,698 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740eabec5/591d25592e274757ae578150628796ee [2025-03-13 22:13:58,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:13:58,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:13:58,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:13:58,701 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:13:58,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:13:58,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:13:58" (1/1) ... [2025-03-13 22:13:58,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97286e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:58, skipping insertion in model container [2025-03-13 22:13:58,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:13:58" (1/1) ... [2025-03-13 22:13:58,737 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:13:58,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:13:59,009 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:13:59,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:13:59,089 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:13:59,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59 WrapperNode [2025-03-13 22:13:59,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:13:59,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:13:59,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:13:59,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:13:59,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,138 INFO L138 Inliner]: procedures = 174, calls = 89, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 867 [2025-03-13 22:13:59,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:13:59,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:13:59,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:13:59,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:13:59,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,198 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:13:59,229 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:13:59,229 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:13:59,229 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:13:59,229 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (1/1) ... [2025-03-13 22:13:59,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:13:59,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:13:59,259 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) [2025-03-13 22:13:59,262 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 [2025-03-13 22:13:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:13:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:13:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:13:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-03-13 22:13:59,281 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-03-13 22:13:59,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:13:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-13 22:13:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 22:13:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-13 22:13:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:13:59,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:13:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:13:59,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:13:59,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:13:59,284 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:13:59,401 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:13:59,402 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:14:00,327 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:14:00,328 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:14:00,328 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:14:00,385 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:14:00,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:14:00 BoogieIcfgContainer [2025-03-13 22:14:00,385 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:14:00,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:14:00,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:14:00,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:14:00,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:13:58" (1/3) ... [2025-03-13 22:14:00,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b77ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:14:00, skipping insertion in model container [2025-03-13 22:14:00,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:13:59" (2/3) ... [2025-03-13 22:14:00,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b77ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:14:00, skipping insertion in model container [2025-03-13 22:14:00,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:14:00" (3/3) ... [2025-03-13 22:14:00,392 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_2t.i [2025-03-13 22:14:00,402 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:14:00,404 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_twice_2t.i that has 2 procedures, 973 locations, 1 initial locations, 16 loop locations, and 79 error locations. [2025-03-13 22:14:00,405 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:14:00,554 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-13 22:14:00,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 976 places, 1052 transitions, 2111 flow [2025-03-13 22:14:01,086 INFO L124 PetriNetUnfolderBase]: 118/1545 cut-off events. [2025-03-13 22:14:01,088 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:14:01,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 1545 events. 118/1545 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5711 event pairs, 0 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 915. Up to 4 conditions per place. [2025-03-13 22:14:01,125 INFO L82 GeneralOperation]: Start removeDead. Operand has 976 places, 1052 transitions, 2111 flow [2025-03-13 22:14:01,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 976 places, 1052 transitions, 2111 flow [2025-03-13 22:14:01,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:14:01,167 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;@7b6e0358, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:14:01,169 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2025-03-13 22:14:01,176 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:14:01,177 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-03-13 22:14:01,177 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:14:01,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:01,179 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:14:01,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-13 22:14:01,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2056556868, now seen corresponding path program 1 times [2025-03-13 22:14:01,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:01,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127425829] [2025-03-13 22:14:01,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:01,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:01,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-13 22:14:01,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-13 22:14:01,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:01,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:01,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:01,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127425829] [2025-03-13 22:14:01,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127425829] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:01,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:01,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:14:01,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684351710] [2025-03-13 22:14:01,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:01,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:14:01,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:02,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:14:02,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:14:03,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1052 [2025-03-13 22:14:03,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 976 places, 1052 transitions, 2111 flow. Second operand has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:03,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:03,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1052 [2025-03-13 22:14:03,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:11,525 INFO L124 PetriNetUnfolderBase]: 12711/59643 cut-off events. [2025-03-13 22:14:11,525 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-13 22:14:11,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83052 conditions, 59643 events. 12711/59643 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 694418 event pairs, 11413 based on Foata normal form. 5888/58360 useless extension candidates. Maximal degree in co-relation 82324. Up to 23399 conditions per place. [2025-03-13 22:14:11,787 INFO L140 encePairwiseOnDemand]: 986/1052 looper letters, 239 selfloop transitions, 5 changer transitions 6/963 dead transitions. [2025-03-13 22:14:11,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 963 transitions, 2421 flow [2025-03-13 22:14:11,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:14:11,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:14:11,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4787 transitions. [2025-03-13 22:14:11,816 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7583967046894804 [2025-03-13 22:14:11,817 INFO L175 Difference]: Start difference. First operand has 976 places, 1052 transitions, 2111 flow. Second operand 6 states and 4787 transitions. [2025-03-13 22:14:11,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 963 transitions, 2421 flow [2025-03-13 22:14:11,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 963 transitions, 2421 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:14:11,845 INFO L231 Difference]: Finished difference. Result has 952 places, 957 transitions, 1931 flow [2025-03-13 22:14:11,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=958, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1931, PETRI_PLACES=952, PETRI_TRANSITIONS=957} [2025-03-13 22:14:11,853 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -24 predicate places. [2025-03-13 22:14:11,853 INFO L471 AbstractCegarLoop]: Abstraction has has 952 places, 957 transitions, 1931 flow [2025-03-13 22:14:11,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:11,855 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:11,856 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:14:11,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:14:11,856 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-13 22:14:11,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1887817101, now seen corresponding path program 1 times [2025-03-13 22:14:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:11,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392666797] [2025-03-13 22:14:11,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:11,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:11,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-13 22:14:11,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-13 22:14:11,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:11,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:11,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:11,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392666797] [2025-03-13 22:14:11,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392666797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:11,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:11,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 22:14:11,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600238497] [2025-03-13 22:14:11,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:11,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:14:11,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:11,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:14:11,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:14:11,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 964 out of 1052 [2025-03-13 22:14:11,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 957 transitions, 1931 flow. Second operand has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:11,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:11,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 964 of 1052 [2025-03-13 22:14:11,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:12,764 INFO L124 PetriNetUnfolderBase]: 247/4823 cut-off events. [2025-03-13 22:14:12,764 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-13 22:14:12,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5146 conditions, 4823 events. 247/4823 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36229 event pairs, 110 based on Foata normal form. 1/4162 useless extension candidates. Maximal degree in co-relation 5062. Up to 306 conditions per place. [2025-03-13 22:14:12,815 INFO L140 encePairwiseOnDemand]: 1049/1052 looper letters, 27 selfloop transitions, 2 changer transitions 0/958 dead transitions. [2025-03-13 22:14:12,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 958 transitions, 1991 flow [2025-03-13 22:14:12,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:14:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:14:12,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2922 transitions. [2025-03-13 22:14:12,821 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9258555133079848 [2025-03-13 22:14:12,821 INFO L175 Difference]: Start difference. First operand has 952 places, 957 transitions, 1931 flow. Second operand 3 states and 2922 transitions. [2025-03-13 22:14:12,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 958 transitions, 1991 flow [2025-03-13 22:14:12,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 943 places, 958 transitions, 1981 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-13 22:14:12,839 INFO L231 Difference]: Finished difference. Result has 944 places, 958 transitions, 1933 flow [2025-03-13 22:14:12,840 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1921, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1933, PETRI_PLACES=944, PETRI_TRANSITIONS=958} [2025-03-13 22:14:12,841 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -32 predicate places. [2025-03-13 22:14:12,841 INFO L471 AbstractCegarLoop]: Abstraction has has 944 places, 958 transitions, 1933 flow [2025-03-13 22:14:12,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:12,842 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:12,842 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:14:12,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:14:12,842 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-13 22:14:12,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:12,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1451766445, now seen corresponding path program 1 times [2025-03-13 22:14:12,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:12,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353016886] [2025-03-13 22:14:12,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:12,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:12,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-13 22:14:12,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-13 22:14:12,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:12,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:13,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:13,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353016886] [2025-03-13 22:14:13,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353016886] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:13,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:13,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:14:13,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681522696] [2025-03-13 22:14:13,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:13,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:14:13,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:13,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:14:13,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:14:14,370 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1052 [2025-03-13 22:14:14,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 944 places, 958 transitions, 1933 flow. Second operand has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:14,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:14,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1052 [2025-03-13 22:14:14,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:22,459 INFO L124 PetriNetUnfolderBase]: 12711/59664 cut-off events. [2025-03-13 22:14:22,459 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-13 22:14:22,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83088 conditions, 59664 events. 12711/59664 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 694555 event pairs, 11413 based on Foata normal form. 0/52496 useless extension candidates. Maximal degree in co-relation 83009. Up to 23402 conditions per place. [2025-03-13 22:14:22,681 INFO L140 encePairwiseOnDemand]: 1046/1052 looper letters, 240 selfloop transitions, 5 changer transitions 0/957 dead transitions. [2025-03-13 22:14:22,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 948 places, 957 transitions, 2421 flow [2025-03-13 22:14:22,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:14:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:14:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4727 transitions. [2025-03-13 22:14:22,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7488910012674271 [2025-03-13 22:14:22,691 INFO L175 Difference]: Start difference. First operand has 944 places, 958 transitions, 1933 flow. Second operand 6 states and 4727 transitions. [2025-03-13 22:14:22,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 948 places, 957 transitions, 2421 flow [2025-03-13 22:14:22,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 947 places, 957 transitions, 2419 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:14:22,708 INFO L231 Difference]: Finished difference. Result has 947 places, 957 transitions, 1939 flow [2025-03-13 22:14:22,711 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=942, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=957, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1939, PETRI_PLACES=947, PETRI_TRANSITIONS=957} [2025-03-13 22:14:22,713 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -29 predicate places. [2025-03-13 22:14:22,713 INFO L471 AbstractCegarLoop]: Abstraction has has 947 places, 957 transitions, 1939 flow [2025-03-13 22:14:22,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:22,715 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:22,715 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:14:22,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:14:22,715 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-13 22:14:22,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:22,716 INFO L85 PathProgramCache]: Analyzing trace with hash 971390049, now seen corresponding path program 1 times [2025-03-13 22:14:22,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:22,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412343471] [2025-03-13 22:14:22,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:22,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:22,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-13 22:14:22,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-13 22:14:22,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:22,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:23,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:23,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412343471] [2025-03-13 22:14:23,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412343471] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:23,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:23,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:14:23,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351892125] [2025-03-13 22:14:23,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:23,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:14:23,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:23,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:14:23,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:14:24,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 747 out of 1052 [2025-03-13 22:14:24,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 947 places, 957 transitions, 1939 flow. Second operand has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:24,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:24,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 747 of 1052 [2025-03-13 22:14:24,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:32,104 INFO L124 PetriNetUnfolderBase]: 12711/59662 cut-off events. [2025-03-13 22:14:32,104 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-03-13 22:14:32,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83095 conditions, 59662 events. 12711/59662 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 694334 event pairs, 11413 based on Foata normal form. 0/52496 useless extension candidates. Maximal degree in co-relation 83002. Up to 23402 conditions per place. [2025-03-13 22:14:32,339 INFO L140 encePairwiseOnDemand]: 1046/1052 looper letters, 240 selfloop transitions, 5 changer transitions 0/956 dead transitions. [2025-03-13 22:14:32,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 956 transitions, 2427 flow [2025-03-13 22:14:32,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:14:32,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:14:32,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4727 transitions. [2025-03-13 22:14:32,346 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7488910012674271 [2025-03-13 22:14:32,347 INFO L175 Difference]: Start difference. First operand has 947 places, 957 transitions, 1939 flow. Second operand 6 states and 4727 transitions. [2025-03-13 22:14:32,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 956 transitions, 2427 flow [2025-03-13 22:14:32,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 946 places, 956 transitions, 2417 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-13 22:14:32,358 INFO L231 Difference]: Finished difference. Result has 946 places, 956 transitions, 1937 flow [2025-03-13 22:14:32,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1937, PETRI_PLACES=946, PETRI_TRANSITIONS=956} [2025-03-13 22:14:32,360 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -30 predicate places. [2025-03-13 22:14:32,360 INFO L471 AbstractCegarLoop]: Abstraction has has 946 places, 956 transitions, 1937 flow [2025-03-13 22:14:32,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 748.5) internal successors, (4491), 6 states have internal predecessors, (4491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:32,362 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:32,362 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:14:32,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:14:32,362 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-13 22:14:32,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:32,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1291171115, now seen corresponding path program 1 times [2025-03-13 22:14:32,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:32,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100423520] [2025-03-13 22:14:32,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:32,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:32,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-13 22:14:32,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-13 22:14:32,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:32,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:32,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:32,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100423520] [2025-03-13 22:14:32,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100423520] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-13 22:14:32,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285377614] [2025-03-13 22:14:32,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:32,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:14:32,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:14:32,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-13 22:14:32,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-13 22:14:32,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-13 22:14:32,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-13 22:14:32,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:32,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:32,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-13 22:14:32,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-13 22:14:32,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:32,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-13 22:14:32,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:14:32,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285377614] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-13 22:14:32,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-13 22:14:32,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2025-03-13 22:14:32,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364075506] [2025-03-13 22:14:32,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-13 22:14:32,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-13 22:14:32,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:32,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-13 22:14:32,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-13 22:14:32,772 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 963 out of 1052 [2025-03-13 22:14:32,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 946 places, 956 transitions, 1937 flow. Second operand has 5 states, 5 states have (on average 964.8) internal successors, (4824), 5 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:32,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:32,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 963 of 1052 [2025-03-13 22:14:32,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:33,637 INFO L124 PetriNetUnfolderBase]: 247/4821 cut-off events. [2025-03-13 22:14:33,637 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-13 22:14:33,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5152 conditions, 4821 events. 247/4821 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 36207 event pairs, 110 based on Foata normal form. 1/4164 useless extension candidates. Maximal degree in co-relation 5045. Up to 305 conditions per place. [2025-03-13 22:14:33,669 INFO L140 encePairwiseOnDemand]: 1048/1052 looper letters, 28 selfloop transitions, 4 changer transitions 0/958 dead transitions. [2025-03-13 22:14:33,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 958 transitions, 2005 flow [2025-03-13 22:14:33,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-13 22:14:33,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-13 22:14:33,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3885 transitions. [2025-03-13 22:14:33,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9232414448669202 [2025-03-13 22:14:33,674 INFO L175 Difference]: Start difference. First operand has 946 places, 956 transitions, 1937 flow. Second operand 4 states and 3885 transitions. [2025-03-13 22:14:33,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 958 transitions, 2005 flow [2025-03-13 22:14:33,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 944 places, 958 transitions, 1995 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-13 22:14:33,683 INFO L231 Difference]: Finished difference. Result has 946 places, 957 transitions, 1947 flow [2025-03-13 22:14:33,684 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=941, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=952, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1947, PETRI_PLACES=946, PETRI_TRANSITIONS=957} [2025-03-13 22:14:33,684 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -30 predicate places. [2025-03-13 22:14:33,684 INFO L471 AbstractCegarLoop]: Abstraction has has 946 places, 957 transitions, 1947 flow [2025-03-13 22:14:33,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 964.8) internal successors, (4824), 5 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:33,686 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:33,687 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:14:33,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-13 22:14:33,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-13 22:14:33,887 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-13 22:14:33,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:33,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1754893341, now seen corresponding path program 2 times [2025-03-13 22:14:33,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:33,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802495637] [2025-03-13 22:14:33,888 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:14:33,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:33,909 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-03-13 22:14:33,914 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 102 statements. [2025-03-13 22:14:33,914 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:14:33,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:34,068 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-13 22:14:34,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:34,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802495637] [2025-03-13 22:14:34,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802495637] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:34,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:34,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:14:34,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909867821] [2025-03-13 22:14:34,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:34,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:14:34,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:34,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:14:34,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:14:34,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 744 out of 1052 [2025-03-13 22:14:34,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 946 places, 957 transitions, 1947 flow. Second operand has 6 states, 6 states have (on average 747.3333333333334) internal successors, (4484), 6 states have internal predecessors, (4484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:34,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:34,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 744 of 1052 [2025-03-13 22:14:34,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:14:42,857 INFO L124 PetriNetUnfolderBase]: 12501/59214 cut-off events. [2025-03-13 22:14:42,857 INFO L125 PetriNetUnfolderBase]: For 13/16 co-relation queries the response was YES. [2025-03-13 22:14:42,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82248 conditions, 59214 events. 12501/59214 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 690133 event pairs, 11211 based on Foata normal form. 0/52109 useless extension candidates. Maximal degree in co-relation 82118. Up to 23002 conditions per place. [2025-03-13 22:14:43,060 INFO L140 encePairwiseOnDemand]: 1040/1052 looper letters, 236 selfloop transitions, 10 changer transitions 0/955 dead transitions. [2025-03-13 22:14:43,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 949 places, 955 transitions, 2435 flow [2025-03-13 22:14:43,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:14:43,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:14:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4712 transitions. [2025-03-13 22:14:43,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7465145754119138 [2025-03-13 22:14:43,064 INFO L175 Difference]: Start difference. First operand has 946 places, 957 transitions, 1947 flow. Second operand 6 states and 4712 transitions. [2025-03-13 22:14:43,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 949 places, 955 transitions, 2435 flow [2025-03-13 22:14:43,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 955 transitions, 2431 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-13 22:14:43,075 INFO L231 Difference]: Finished difference. Result has 948 places, 955 transitions, 1959 flow [2025-03-13 22:14:43,076 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1052, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=943, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1959, PETRI_PLACES=948, PETRI_TRANSITIONS=955} [2025-03-13 22:14:43,076 INFO L279 CegarLoopForPetriNet]: 976 programPoint places, -28 predicate places. [2025-03-13 22:14:43,076 INFO L471 AbstractCegarLoop]: Abstraction has has 948 places, 955 transitions, 1959 flow [2025-03-13 22:14:43,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 747.3333333333334) internal successors, (4484), 6 states have internal predecessors, (4484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:43,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:14:43,079 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:14:43,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:14:43,079 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-03-13 22:14:43,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:14:43,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1785342022, now seen corresponding path program 1 times [2025-03-13 22:14:43,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:14:43,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849015651] [2025-03-13 22:14:43,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:14:43,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:14:43,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-13 22:14:43,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-13 22:14:43,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:14:43,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:14:43,425 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-03-13 22:14:43,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:14:43,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849015651] [2025-03-13 22:14:43,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849015651] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:14:43,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:14:43,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:14:43,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532862963] [2025-03-13 22:14:43,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:14:43,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:14:43,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:14:43,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:14:43,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:14:44,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 744 out of 1052 [2025-03-13 22:14:44,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 948 places, 955 transitions, 1959 flow. Second operand has 6 states, 6 states have (on average 747.3333333333334) internal successors, (4484), 6 states have internal predecessors, (4484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:14:44,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:14:44,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 744 of 1052 [2025-03-13 22:14:44,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand