./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:18:44,995 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:18:45,056 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:18:45,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:18:45,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:18:45,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:18:45,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:18:45,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:18:45,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:18:45,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:18:45,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:18:45,091 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:18:45,091 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:18:45,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:18:45,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:18:45,092 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:18:45,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:18:45,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:18:45,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:18:45,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:18:45,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:18:45,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:18:45,093 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:18:45,093 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:18:45,093 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:18:45,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:18:45,093 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:18:45,094 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:18:45,094 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:18:45,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:18:45,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:18:45,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:18:45,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:18:45,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:18:45,094 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:18:45,095 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:18:45,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:18:45,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:18:45,095 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:18:45,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:18:45,095 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:18:45,095 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:18:45,095 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-jdk21/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 -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2025-02-06 09:18:45,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:18:45,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:18:45,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:18:45,368 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:18:45,368 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:18:45,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2025-02-06 09:18:46,683 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/033f56228/2d0aba762f1648e4ae5e713402b99654/FLAGc7be94662 [2025-02-06 09:18:46,960 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:18:46,961 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2025-02-06 09:18:46,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/033f56228/2d0aba762f1648e4ae5e713402b99654/FLAGc7be94662 [2025-02-06 09:18:46,992 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/033f56228/2d0aba762f1648e4ae5e713402b99654 [2025-02-06 09:18:46,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:18:46,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:18:46,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:18:46,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:18:47,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:18:47,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:18:46" (1/1) ... [2025-02-06 09:18:47,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571d993d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47, skipping insertion in model container [2025-02-06 09:18:47,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:18:46" (1/1) ... [2025-02-06 09:18:47,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:18:47,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:18:47,443 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:18:47,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:18:47,570 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:18:47,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47 WrapperNode [2025-02-06 09:18:47,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:18:47,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:18:47,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:18:47,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:18:47,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,677 INFO L138 Inliner]: procedures = 174, calls = 91, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 846 [2025-02-06 09:18:47,681 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:18:47,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:18:47,682 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:18:47,682 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:18:47,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,778 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:18:47,801 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:18:47,802 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:18:47,802 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:18:47,803 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (1/1) ... [2025-02-06 09:18:47,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:18:47,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:18:47,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:18:47,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:18:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:18:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:18:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 09:18:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-02-06 09:18:47,856 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-02-06 09:18:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 09:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 09:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 09:18:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:18:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:18:47,858 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:18:48,023 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:18:48,024 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:18:49,223 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:18:49,223 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:18:49,302 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:18:49,302 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:18:49,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:18:49 BoogieIcfgContainer [2025-02-06 09:18:49,303 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:18:49,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:18:49,305 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:18:49,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:18:49,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:18:46" (1/3) ... [2025-02-06 09:18:49,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429610b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:18:49, skipping insertion in model container [2025-02-06 09:18:49,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:18:47" (2/3) ... [2025-02-06 09:18:49,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429610b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:18:49, skipping insertion in model container [2025-02-06 09:18:49,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:18:49" (3/3) ... [2025-02-06 09:18:49,314 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2025-02-06 09:18:49,328 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:18:49,331 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_3t.i that has 2 procedures, 950 locations, 1 initial locations, 16 loop locations, and 77 error locations. [2025-02-06 09:18:49,331 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:18:49,543 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 09:18:49,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 953 places, 1027 transitions, 2061 flow [2025-02-06 09:18:50,189 INFO L124 PetriNetUnfolderBase]: 116/1520 cut-off events. [2025-02-06 09:18:50,193 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 09:18:50,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1525 conditions, 1520 events. 116/1520 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5721 event pairs, 0 based on Foata normal form. 0/1286 useless extension candidates. Maximal degree in co-relation 917. Up to 4 conditions per place. [2025-02-06 09:18:50,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 953 places, 1027 transitions, 2061 flow [2025-02-06 09:18:50,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 953 places, 1027 transitions, 2061 flow [2025-02-06 09:18:50,277 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:18:50,286 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;@7e686c5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:18:50,287 INFO L334 AbstractCegarLoop]: Starting to check reachability of 112 error locations. [2025-02-06 09:18:50,297 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:18:50,298 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2025-02-06 09:18:50,298 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:18:50,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:18:50,299 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:18:50,299 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-02-06 09:18:50,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:18:50,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1061539876, now seen corresponding path program 1 times [2025-02-06 09:18:50,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:18:50,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904707351] [2025-02-06 09:18:50,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:18:50,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:18:50,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 09:18:50,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 09:18:50,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:18:50,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:18:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:18:51,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:18:51,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904707351] [2025-02-06 09:18:51,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904707351] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:18:51,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:18:51,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:18:51,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619071109] [2025-02-06 09:18:51,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:18:51,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:18:51,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:18:51,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:18:51,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:18:52,978 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1027 [2025-02-06 09:18:52,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 1027 transitions, 2061 flow. Second operand has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 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) [2025-02-06 09:18:52,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:18:52,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1027 [2025-02-06 09:18:52,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:03,206 INFO L124 PetriNetUnfolderBase]: 12711/59784 cut-off events. [2025-02-06 09:19:03,207 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2025-02-06 09:19:03,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83185 conditions, 59784 events. 12711/59784 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 697795 event pairs, 11413 based on Foata normal form. 5889/58507 useless extension candidates. Maximal degree in co-relation 82489. Up to 23391 conditions per place. [2025-02-06 09:19:03,456 INFO L140 encePairwiseOnDemand]: 963/1027 looper letters, 231 selfloop transitions, 5 changer transitions 3/941 dead transitions. [2025-02-06 09:19:03,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 941 transitions, 2361 flow [2025-02-06 09:19:03,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:19:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:19:03,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4687 transitions. [2025-02-06 09:19:03,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7606296656929569 [2025-02-06 09:19:03,493 INFO L175 Difference]: Start difference. First operand has 953 places, 1027 transitions, 2061 flow. Second operand 6 states and 4687 transitions. [2025-02-06 09:19:03,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 930 places, 941 transitions, 2361 flow [2025-02-06 09:19:03,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 930 places, 941 transitions, 2361 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:19:03,695 INFO L231 Difference]: Finished difference. Result has 930 places, 938 transitions, 1893 flow [2025-02-06 09:19:03,699 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=925, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=941, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1893, PETRI_PLACES=930, PETRI_TRANSITIONS=938} [2025-02-06 09:19:03,704 INFO L279 CegarLoopForPetriNet]: 953 programPoint places, -23 predicate places. [2025-02-06 09:19:03,706 INFO L471 AbstractCegarLoop]: Abstraction has has 930 places, 938 transitions, 1893 flow [2025-02-06 09:19:03,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 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) [2025-02-06 09:19:03,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:03,709 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] [2025-02-06 09:19:03,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:19:03,710 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-02-06 09:19:03,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:03,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1023789331, now seen corresponding path program 1 times [2025-02-06 09:19:03,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:03,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768497590] [2025-02-06 09:19:03,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:03,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:03,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-06 09:19:03,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-06 09:19:03,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:03,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:19:03,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768497590] [2025-02-06 09:19:03,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768497590] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:03,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:03,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:19:03,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982846283] [2025-02-06 09:19:03,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:03,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:19:03,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:03,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:19:03,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:19:03,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 941 out of 1027 [2025-02-06 09:19:03,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 930 places, 938 transitions, 1893 flow. Second operand has 3 states, 3 states have (on average 942.3333333333334) internal successors, (2827), 3 states have internal predecessors, (2827), 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) [2025-02-06 09:19:03,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:03,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 941 of 1027 [2025-02-06 09:19:03,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:04,587 INFO L124 PetriNetUnfolderBase]: 247/4842 cut-off events. [2025-02-06 09:19:04,587 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:19:04,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5165 conditions, 4842 events. 247/4842 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 36947 event pairs, 110 based on Foata normal form. 1/4183 useless extension candidates. Maximal degree in co-relation 5076. Up to 306 conditions per place. [2025-02-06 09:19:04,630 INFO L140 encePairwiseOnDemand]: 1024/1027 looper letters, 27 selfloop transitions, 2 changer transitions 0/939 dead transitions. [2025-02-06 09:19:04,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 929 places, 939 transitions, 1953 flow [2025-02-06 09:19:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:19:04,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:19:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2853 transitions. [2025-02-06 09:19:04,637 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9259980525803311 [2025-02-06 09:19:04,637 INFO L175 Difference]: Start difference. First operand has 930 places, 938 transitions, 1893 flow. Second operand 3 states and 2853 transitions. [2025-02-06 09:19:04,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 929 places, 939 transitions, 1953 flow [2025-02-06 09:19:04,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 924 places, 939 transitions, 1943 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:19:04,653 INFO L231 Difference]: Finished difference. Result has 925 places, 939 transitions, 1895 flow [2025-02-06 09:19:04,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1883, PETRI_DIFFERENCE_MINUEND_PLACES=922, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=936, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1895, PETRI_PLACES=925, PETRI_TRANSITIONS=939} [2025-02-06 09:19:04,655 INFO L279 CegarLoopForPetriNet]: 953 programPoint places, -28 predicate places. [2025-02-06 09:19:04,655 INFO L471 AbstractCegarLoop]: Abstraction has has 925 places, 939 transitions, 1895 flow [2025-02-06 09:19:04,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 942.3333333333334) internal successors, (2827), 3 states have internal predecessors, (2827), 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) [2025-02-06 09:19:04,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:04,657 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] [2025-02-06 09:19:04,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:19:04,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-02-06 09:19:04,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:04,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1626823718, now seen corresponding path program 1 times [2025-02-06 09:19:04,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:04,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630717672] [2025-02-06 09:19:04,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:04,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:04,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-06 09:19:04,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-06 09:19:04,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:04,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:19:05,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:05,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630717672] [2025-02-06 09:19:05,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630717672] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:05,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:05,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:19:05,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792890764] [2025-02-06 09:19:05,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:05,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:05,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:05,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:05,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:06,334 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1027 [2025-02-06 09:19:06,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 925 places, 939 transitions, 1895 flow. Second operand has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 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) [2025-02-06 09:19:06,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:06,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1027 [2025-02-06 09:19:06,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:15,030 INFO L124 PetriNetUnfolderBase]: 12711/59808 cut-off events. [2025-02-06 09:19:15,030 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-02-06 09:19:15,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83224 conditions, 59808 events. 12711/59808 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 697663 event pairs, 11413 based on Foata normal form. 0/52644 useless extension candidates. Maximal degree in co-relation 83140. Up to 23394 conditions per place. [2025-02-06 09:19:15,229 INFO L140 encePairwiseOnDemand]: 1021/1027 looper letters, 232 selfloop transitions, 5 changer transitions 0/938 dead transitions. [2025-02-06 09:19:15,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 929 places, 938 transitions, 2367 flow [2025-02-06 09:19:15,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:19:15,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:19:15,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4629 transitions. [2025-02-06 09:19:15,240 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7512171372930867 [2025-02-06 09:19:15,240 INFO L175 Difference]: Start difference. First operand has 925 places, 939 transitions, 1895 flow. Second operand 6 states and 4629 transitions. [2025-02-06 09:19:15,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 929 places, 938 transitions, 2367 flow [2025-02-06 09:19:15,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 928 places, 938 transitions, 2365 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 09:19:15,253 INFO L231 Difference]: Finished difference. Result has 928 places, 938 transitions, 1901 flow [2025-02-06 09:19:15,254 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1891, PETRI_DIFFERENCE_MINUEND_PLACES=923, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=938, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1901, PETRI_PLACES=928, PETRI_TRANSITIONS=938} [2025-02-06 09:19:15,255 INFO L279 CegarLoopForPetriNet]: 953 programPoint places, -25 predicate places. [2025-02-06 09:19:15,255 INFO L471 AbstractCegarLoop]: Abstraction has has 928 places, 938 transitions, 1901 flow [2025-02-06 09:19:15,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 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) [2025-02-06 09:19:15,258 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:15,258 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] [2025-02-06 09:19:15,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:19:15,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-02-06 09:19:15,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:15,259 INFO L85 PathProgramCache]: Analyzing trace with hash -718966178, now seen corresponding path program 1 times [2025-02-06 09:19:15,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:15,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193088276] [2025-02-06 09:19:15,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:15,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:15,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-06 09:19:15,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-06 09:19:15,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:15,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:19:15,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:15,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193088276] [2025-02-06 09:19:15,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193088276] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:15,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:15,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:19:15,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463962755] [2025-02-06 09:19:15,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:15,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:15,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:15,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:15,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:16,749 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1027 [2025-02-06 09:19:16,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 928 places, 938 transitions, 1901 flow. Second operand has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 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) [2025-02-06 09:19:16,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:16,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1027 [2025-02-06 09:19:16,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:24,643 INFO L124 PetriNetUnfolderBase]: 12711/59806 cut-off events. [2025-02-06 09:19:24,643 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-02-06 09:19:24,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83231 conditions, 59806 events. 12711/59806 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 698073 event pairs, 11413 based on Foata normal form. 0/52644 useless extension candidates. Maximal degree in co-relation 83133. Up to 23394 conditions per place. [2025-02-06 09:19:25,032 INFO L140 encePairwiseOnDemand]: 1021/1027 looper letters, 232 selfloop transitions, 5 changer transitions 0/937 dead transitions. [2025-02-06 09:19:25,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 932 places, 937 transitions, 2373 flow [2025-02-06 09:19:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:19:25,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:19:25,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4629 transitions. [2025-02-06 09:19:25,043 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7512171372930867 [2025-02-06 09:19:25,043 INFO L175 Difference]: Start difference. First operand has 928 places, 938 transitions, 1901 flow. Second operand 6 states and 4629 transitions. [2025-02-06 09:19:25,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 932 places, 937 transitions, 2373 flow [2025-02-06 09:19:25,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 927 places, 937 transitions, 2363 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:19:25,059 INFO L231 Difference]: Finished difference. Result has 927 places, 937 transitions, 1899 flow [2025-02-06 09:19:25,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=922, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1899, PETRI_PLACES=927, PETRI_TRANSITIONS=937} [2025-02-06 09:19:25,061 INFO L279 CegarLoopForPetriNet]: 953 programPoint places, -26 predicate places. [2025-02-06 09:19:25,061 INFO L471 AbstractCegarLoop]: Abstraction has has 927 places, 937 transitions, 1899 flow [2025-02-06 09:19:25,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 733.5) internal successors, (4401), 6 states have internal predecessors, (4401), 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) [2025-02-06 09:19:25,064 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:25,064 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, 1, 1, 1, 1, 1] [2025-02-06 09:19:25,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:19:25,065 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-02-06 09:19:25,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:25,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1832158607, now seen corresponding path program 1 times [2025-02-06 09:19:25,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:25,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899210484] [2025-02-06 09:19:25,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:25,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:25,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-06 09:19:25,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 09:19:25,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:25,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:19:25,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:25,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899210484] [2025-02-06 09:19:25,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899210484] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:19:25,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117546045] [2025-02-06 09:19:25,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:19:25,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:19:25,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:19:25,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:19:25,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:19:25,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-06 09:19:25,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 09:19:25,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:19:25,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:25,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:19:25,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:19:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:19:25,418 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:19:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 09:19:25,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117546045] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:19:25,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 09:19:25,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-02-06 09:19:25,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95896075] [2025-02-06 09:19:25,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 09:19:25,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:25,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:25,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:25,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:25,609 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 940 out of 1027 [2025-02-06 09:19:25,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 927 places, 937 transitions, 1899 flow. Second operand has 6 states, 6 states have (on average 942.1666666666666) internal successors, (5653), 6 states have internal predecessors, (5653), 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) [2025-02-06 09:19:25,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:25,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 940 of 1027 [2025-02-06 09:19:25,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:19:26,889 INFO L124 PetriNetUnfolderBase]: 247/4868 cut-off events. [2025-02-06 09:19:26,889 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-02-06 09:19:26,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5207 conditions, 4868 events. 247/4868 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 36858 event pairs, 110 based on Foata normal form. 2/4214 useless extension candidates. Maximal degree in co-relation 5059. Up to 305 conditions per place. [2025-02-06 09:19:26,911 INFO L140 encePairwiseOnDemand]: 1023/1027 looper letters, 29 selfloop transitions, 5 changer transitions 0/941 dead transitions. [2025-02-06 09:19:26,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 931 places, 941 transitions, 1977 flow [2025-02-06 09:19:26,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:19:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 09:19:26,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4736 transitions. [2025-02-06 09:19:26,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9222979552093477 [2025-02-06 09:19:26,918 INFO L175 Difference]: Start difference. First operand has 927 places, 937 transitions, 1899 flow. Second operand 5 states and 4736 transitions. [2025-02-06 09:19:26,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 931 places, 941 transitions, 1977 flow [2025-02-06 09:19:26,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 926 places, 941 transitions, 1967 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 09:19:26,932 INFO L231 Difference]: Finished difference. Result has 929 places, 939 transitions, 1919 flow [2025-02-06 09:19:26,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1027, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=922, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1919, PETRI_PLACES=929, PETRI_TRANSITIONS=939} [2025-02-06 09:19:26,934 INFO L279 CegarLoopForPetriNet]: 953 programPoint places, -24 predicate places. [2025-02-06 09:19:26,934 INFO L471 AbstractCegarLoop]: Abstraction has has 929 places, 939 transitions, 1919 flow [2025-02-06 09:19:26,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 942.1666666666666) internal successors, (5653), 6 states have internal predecessors, (5653), 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) [2025-02-06 09:19:26,937 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:19:26,938 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:19:26,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:19:27,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:19:27,139 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (and 109 more)] === [2025-02-06 09:19:27,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:19:27,140 INFO L85 PathProgramCache]: Analyzing trace with hash -325257351, now seen corresponding path program 2 times [2025-02-06 09:19:27,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:19:27,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126716449] [2025-02-06 09:19:27,140 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:19:27,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:19:27,175 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 135 statements into 2 equivalence classes. [2025-02-06 09:19:27,179 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 51 of 135 statements. [2025-02-06 09:19:27,179 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 09:19:27,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:19:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2025-02-06 09:19:27,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:19:27,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126716449] [2025-02-06 09:19:27,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126716449] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:19:27,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:19:27,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:19:27,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276576576] [2025-02-06 09:19:27,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:19:27,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:19:27,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:19:27,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:19:27,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:19:28,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 732 out of 1027 [2025-02-06 09:19:28,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 939 transitions, 1919 flow. Second operand has 6 states, 6 states have (on average 735.3333333333334) internal successors, (4412), 6 states have internal predecessors, (4412), 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) [2025-02-06 09:19:28,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:19:28,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 732 of 1027 [2025-02-06 09:19:28,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand