./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d 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_twice_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 f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:29:07,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:29:07,595 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:29:07,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:29:07,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:29:07,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:29:07,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:29:07,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:29:07,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:29:07,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:29:07,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:29:07,626 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:29:07,626 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:29:07,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:29:07,627 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:29:07,628 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:29:07,628 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:29:07,629 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:29:07,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:29:07,629 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 -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2025-02-08 05:29:07,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:29:07,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:29:07,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:29:07,874 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:29:07,874 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:29:07,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2025-02-08 05:29:09,121 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af55e47e3/d41ecc9991a44ecf906b4a97dec6e7f6/FLAG7a2917565 [2025-02-08 05:29:09,392 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:29:09,393 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2025-02-08 05:29:09,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af55e47e3/d41ecc9991a44ecf906b4a97dec6e7f6/FLAG7a2917565 [2025-02-08 05:29:09,683 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af55e47e3/d41ecc9991a44ecf906b4a97dec6e7f6 [2025-02-08 05:29:09,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:29:09,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:29:09,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:29:09,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:29:09,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:29:09,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:09,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e60115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09, skipping insertion in model container [2025-02-08 05:29:09,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:09,709 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:29:09,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:29:09,903 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:29:09,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:29:09,998 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:29:09,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09 WrapperNode [2025-02-08 05:29:09,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:29:10,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:29:10,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:29:10,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:29:10,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,048 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 872 [2025-02-08 05:29:10,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:29:10,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:29:10,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:29:10,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:29:10,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,122 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,127 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:29:10,152 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:29:10,153 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:29:10,153 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:29:10,154 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:29:10,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:29:10,191 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) [2025-02-08 05:29:10,199 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 [2025-02-08 05:29:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:29:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:29:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:29:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-02-08 05:29:10,219 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-02-08 05:29:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:29:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-08 05:29:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:29:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-08 05:29:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:29:10,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:29:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:29:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:29:10,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:29:10,222 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:29:10,345 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:29:10,347 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:29:11,276 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:29:11,276 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:29:11,311 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:29:11,311 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:29:11,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:29:11 BoogieIcfgContainer [2025-02-08 05:29:11,312 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:29:11,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:29:11,314 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:29:11,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:29:11,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:29:09" (1/3) ... [2025-02-08 05:29:11,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d65e6b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:29:11, skipping insertion in model container [2025-02-08 05:29:11,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (2/3) ... [2025-02-08 05:29:11,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d65e6b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:29:11, skipping insertion in model container [2025-02-08 05:29:11,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:29:11" (3/3) ... [2025-02-08 05:29:11,319 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2025-02-08 05:29:11,332 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:29:11,334 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_twice_3t.i that has 2 procedures, 986 locations, 1 initial locations, 16 loop locations, and 79 error locations. [2025-02-08 05:29:11,334 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:29:11,494 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 05:29:11,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 989 places, 1061 transitions, 2129 flow [2025-02-08 05:29:11,983 INFO L124 PetriNetUnfolderBase]: 112/1556 cut-off events. [2025-02-08 05:29:11,988 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:29:12,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1561 conditions, 1556 events. 112/1556 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5759 event pairs, 0 based on Foata normal form. 0/1318 useless extension candidates. Maximal degree in co-relation 919. Up to 4 conditions per place. [2025-02-08 05:29:12,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 989 places, 1061 transitions, 2129 flow [2025-02-08 05:29:12,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 989 places, 1061 transitions, 2129 flow [2025-02-08 05:29:12,090 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:29:12,104 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;@5579cf4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:29:12,107 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2025-02-08 05:29:12,118 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:29:12,118 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2025-02-08 05:29:12,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:29:12,119 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:12,119 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] [2025-02-08 05:29:12,123 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)] === [2025-02-08 05:29:12,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:12,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1963149262, now seen corresponding path program 1 times [2025-02-08 05:29:12,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:12,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7896164] [2025-02-08 05:29:12,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:12,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:12,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 05:29:12,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 05:29:12,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:12,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:12,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:12,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:12,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7896164] [2025-02-08 05:29:12,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7896164] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:12,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:12,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:12,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758398686] [2025-02-08 05:29:12,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:12,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:12,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:12,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:12,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:14,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 756 out of 1061 [2025-02-08 05:29:14,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 989 places, 1061 transitions, 2129 flow. Second operand has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 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) [2025-02-08 05:29:14,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:14,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 756 of 1061 [2025-02-08 05:29:14,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:24,073 INFO L124 PetriNetUnfolderBase]: 12456/61903 cut-off events. [2025-02-08 05:29:24,074 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2025-02-08 05:29:24,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85278 conditions, 61903 events. 12456/61903 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 708263 event pairs, 11413 based on Foata normal form. 6046/60494 useless extension candidates. Maximal degree in co-relation 84543. Up to 23365 conditions per place. [2025-02-08 05:29:24,303 INFO L140 encePairwiseOnDemand]: 995/1061 looper letters, 239 selfloop transitions, 5 changer transitions 6/972 dead transitions. [2025-02-08 05:29:24,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 965 places, 972 transitions, 2439 flow [2025-02-08 05:29:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:24,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:24,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4841 transitions. [2025-02-08 05:29:24,331 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7604461200125667 [2025-02-08 05:29:24,332 INFO L175 Difference]: Start difference. First operand has 989 places, 1061 transitions, 2129 flow. Second operand 6 states and 4841 transitions. [2025-02-08 05:29:24,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 965 places, 972 transitions, 2439 flow [2025-02-08 05:29:24,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 965 places, 972 transitions, 2439 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:29:24,354 INFO L231 Difference]: Finished difference. Result has 965 places, 966 transitions, 1949 flow [2025-02-08 05:29:24,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1951, PETRI_DIFFERENCE_MINUEND_PLACES=960, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=972, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1949, PETRI_PLACES=965, PETRI_TRANSITIONS=966} [2025-02-08 05:29:24,363 INFO L279 CegarLoopForPetriNet]: 989 programPoint places, -24 predicate places. [2025-02-08 05:29:24,363 INFO L471 AbstractCegarLoop]: Abstraction has has 965 places, 966 transitions, 1949 flow [2025-02-08 05:29:24,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 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) [2025-02-08 05:29:24,366 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:24,366 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] [2025-02-08 05:29:24,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:29:24,367 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)] === [2025-02-08 05:29:24,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:24,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1044626516, now seen corresponding path program 1 times [2025-02-08 05:29:24,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:24,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647326338] [2025-02-08 05:29:24,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:24,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:24,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-08 05:29:24,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-08 05:29:24,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:24,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:24,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:24,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647326338] [2025-02-08 05:29:24,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647326338] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:24,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:24,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:29:24,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904324698] [2025-02-08 05:29:24,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:24,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:29:24,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:24,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:29:24,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:29:24,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 973 out of 1061 [2025-02-08 05:29:24,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 965 places, 966 transitions, 1949 flow. Second operand has 3 states, 3 states have (on average 974.3333333333334) internal successors, (2923), 3 states have internal predecessors, (2923), 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) [2025-02-08 05:29:24,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:24,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 973 of 1061 [2025-02-08 05:29:24,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:25,169 INFO L124 PetriNetUnfolderBase]: 223/4872 cut-off events. [2025-02-08 05:29:25,170 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-08 05:29:25,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5195 conditions, 4872 events. 223/4872 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 35124 event pairs, 110 based on Foata normal form. 1/4211 useless extension candidates. Maximal degree in co-relation 5106. Up to 306 conditions per place. [2025-02-08 05:29:25,335 INFO L140 encePairwiseOnDemand]: 1058/1061 looper letters, 27 selfloop transitions, 2 changer transitions 0/967 dead transitions. [2025-02-08 05:29:25,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 967 transitions, 2009 flow [2025-02-08 05:29:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:29:25,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:29:25,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2949 transitions. [2025-02-08 05:29:25,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9264844486333648 [2025-02-08 05:29:25,341 INFO L175 Difference]: Start difference. First operand has 965 places, 966 transitions, 1949 flow. Second operand 3 states and 2949 transitions. [2025-02-08 05:29:25,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 967 transitions, 2009 flow [2025-02-08 05:29:25,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 967 transitions, 1999 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:29:25,354 INFO L231 Difference]: Finished difference. Result has 957 places, 967 transitions, 1951 flow [2025-02-08 05:29:25,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=957, PETRI_TRANSITIONS=967} [2025-02-08 05:29:25,356 INFO L279 CegarLoopForPetriNet]: 989 programPoint places, -32 predicate places. [2025-02-08 05:29:25,356 INFO L471 AbstractCegarLoop]: Abstraction has has 957 places, 967 transitions, 1951 flow [2025-02-08 05:29:25,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 974.3333333333334) internal successors, (2923), 3 states have internal predecessors, (2923), 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) [2025-02-08 05:29:25,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:25,358 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] [2025-02-08 05:29:25,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:29:25,358 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)] === [2025-02-08 05:29:25,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:25,359 INFO L85 PathProgramCache]: Analyzing trace with hash -222600419, now seen corresponding path program 1 times [2025-02-08 05:29:25,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:25,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597167161] [2025-02-08 05:29:25,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:25,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:25,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-08 05:29:25,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-08 05:29:25,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:25,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:25,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:25,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597167161] [2025-02-08 05:29:25,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597167161] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:25,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:25,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:25,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115636609] [2025-02-08 05:29:25,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:25,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:25,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:25,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:26,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 756 out of 1061 [2025-02-08 05:29:26,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 967 transitions, 1951 flow. Second operand has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 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) [2025-02-08 05:29:26,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:26,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 756 of 1061 [2025-02-08 05:29:26,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:36,532 INFO L124 PetriNetUnfolderBase]: 12456/61924 cut-off events. [2025-02-08 05:29:36,532 INFO L125 PetriNetUnfolderBase]: For 10/13 co-relation queries the response was YES. [2025-02-08 05:29:36,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85314 conditions, 61924 events. 12456/61924 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 708358 event pairs, 11413 based on Foata normal form. 0/54472 useless extension candidates. Maximal degree in co-relation 85230. Up to 23368 conditions per place. [2025-02-08 05:29:36,803 INFO L140 encePairwiseOnDemand]: 1055/1061 looper letters, 240 selfloop transitions, 5 changer transitions 0/966 dead transitions. [2025-02-08 05:29:36,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 966 transitions, 2439 flow [2025-02-08 05:29:36,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:36,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4781 transitions. [2025-02-08 05:29:36,812 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7510210493245366 [2025-02-08 05:29:36,812 INFO L175 Difference]: Start difference. First operand has 957 places, 967 transitions, 1951 flow. Second operand 6 states and 4781 transitions. [2025-02-08 05:29:36,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 966 transitions, 2439 flow [2025-02-08 05:29:36,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 966 transitions, 2437 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:29:36,824 INFO L231 Difference]: Finished difference. Result has 960 places, 966 transitions, 1957 flow [2025-02-08 05:29:36,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1947, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1957, PETRI_PLACES=960, PETRI_TRANSITIONS=966} [2025-02-08 05:29:36,826 INFO L279 CegarLoopForPetriNet]: 989 programPoint places, -29 predicate places. [2025-02-08 05:29:36,826 INFO L471 AbstractCegarLoop]: Abstraction has has 960 places, 966 transitions, 1957 flow [2025-02-08 05:29:36,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 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) [2025-02-08 05:29:36,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:36,828 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] [2025-02-08 05:29:36,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:29:36,829 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)] === [2025-02-08 05:29:36,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:36,830 INFO L85 PathProgramCache]: Analyzing trace with hash 207825282, now seen corresponding path program 1 times [2025-02-08 05:29:36,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:36,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276695855] [2025-02-08 05:29:36,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:36,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:36,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-08 05:29:36,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-08 05:29:36,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:36,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:37,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:37,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276695855] [2025-02-08 05:29:37,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276695855] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:37,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:37,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:37,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962727789] [2025-02-08 05:29:37,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:37,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:37,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:37,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:37,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:38,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 756 out of 1061 [2025-02-08 05:29:38,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 966 transitions, 1957 flow. Second operand has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 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) [2025-02-08 05:29:38,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:38,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 756 of 1061 [2025-02-08 05:29:38,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:47,643 INFO L124 PetriNetUnfolderBase]: 12456/61922 cut-off events. [2025-02-08 05:29:47,644 INFO L125 PetriNetUnfolderBase]: For 9/12 co-relation queries the response was YES. [2025-02-08 05:29:47,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85321 conditions, 61922 events. 12456/61922 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 708208 event pairs, 11413 based on Foata normal form. 0/54472 useless extension candidates. Maximal degree in co-relation 85223. Up to 23368 conditions per place. [2025-02-08 05:29:47,868 INFO L140 encePairwiseOnDemand]: 1055/1061 looper letters, 240 selfloop transitions, 5 changer transitions 0/965 dead transitions. [2025-02-08 05:29:47,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 965 transitions, 2445 flow [2025-02-08 05:29:47,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:47,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:47,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4781 transitions. [2025-02-08 05:29:47,875 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7510210493245366 [2025-02-08 05:29:47,875 INFO L175 Difference]: Start difference. First operand has 960 places, 966 transitions, 1957 flow. Second operand 6 states and 4781 transitions. [2025-02-08 05:29:47,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 965 transitions, 2445 flow [2025-02-08 05:29:47,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 959 places, 965 transitions, 2435 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:29:47,888 INFO L231 Difference]: Finished difference. Result has 959 places, 965 transitions, 1955 flow [2025-02-08 05:29:47,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1955, PETRI_PLACES=959, PETRI_TRANSITIONS=965} [2025-02-08 05:29:47,894 INFO L279 CegarLoopForPetriNet]: 989 programPoint places, -30 predicate places. [2025-02-08 05:29:47,894 INFO L471 AbstractCegarLoop]: Abstraction has has 959 places, 965 transitions, 1955 flow [2025-02-08 05:29:47,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 757.5) internal successors, (4545), 6 states have internal predecessors, (4545), 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) [2025-02-08 05:29:47,896 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:47,896 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] [2025-02-08 05:29:47,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:29:47,896 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)] === [2025-02-08 05:29:47,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:47,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1939870262, now seen corresponding path program 1 times [2025-02-08 05:29:47,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:47,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887075700] [2025-02-08 05:29:47,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:47,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:47,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-08 05:29:47,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 05:29:47,934 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:47,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:47,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:47,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887075700] [2025-02-08 05:29:47,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887075700] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:29:47,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587695061] [2025-02-08 05:29:47,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:47,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:29:47,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:29:48,000 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) [2025-02-08 05:29:48,001 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 [2025-02-08 05:29:48,066 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-08 05:29:48,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 05:29:48,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:48,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:48,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:29:48,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:29:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:48,159 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:29:48,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:48,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587695061] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:29:48,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:29:48,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-02-08 05:29:48,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455606516] [2025-02-08 05:29:48,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:29:48,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:48,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:48,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:48,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:48,299 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 972 out of 1061 [2025-02-08 05:29:48,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 959 places, 965 transitions, 1955 flow. Second operand has 6 states, 6 states have (on average 974.1666666666666) internal successors, (5845), 6 states have internal predecessors, (5845), 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) [2025-02-08 05:29:48,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:48,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 972 of 1061 [2025-02-08 05:29:48,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:49,318 INFO L124 PetriNetUnfolderBase]: 223/4898 cut-off events. [2025-02-08 05:29:49,319 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-02-08 05:29:49,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5237 conditions, 4898 events. 223/4898 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 35106 event pairs, 110 based on Foata normal form. 2/4242 useless extension candidates. Maximal degree in co-relation 5089. Up to 305 conditions per place. [2025-02-08 05:29:49,354 INFO L140 encePairwiseOnDemand]: 1057/1061 looper letters, 29 selfloop transitions, 5 changer transitions 0/969 dead transitions. [2025-02-08 05:29:49,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 963 places, 969 transitions, 2033 flow [2025-02-08 05:29:49,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:29:49,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 05:29:49,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4896 transitions. [2025-02-08 05:29:49,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9229029217719132 [2025-02-08 05:29:49,361 INFO L175 Difference]: Start difference. First operand has 959 places, 965 transitions, 1955 flow. Second operand 5 states and 4896 transitions. [2025-02-08 05:29:49,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 963 places, 969 transitions, 2033 flow [2025-02-08 05:29:49,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 958 places, 969 transitions, 2023 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:29:49,373 INFO L231 Difference]: Finished difference. Result has 961 places, 967 transitions, 1975 flow [2025-02-08 05:29:49,374 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1061, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1975, PETRI_PLACES=961, PETRI_TRANSITIONS=967} [2025-02-08 05:29:49,375 INFO L279 CegarLoopForPetriNet]: 989 programPoint places, -28 predicate places. [2025-02-08 05:29:49,375 INFO L471 AbstractCegarLoop]: Abstraction has has 961 places, 967 transitions, 1975 flow [2025-02-08 05:29:49,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 974.1666666666666) internal successors, (5845), 6 states have internal predecessors, (5845), 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) [2025-02-08 05:29:49,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:49,378 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] [2025-02-08 05:29:49,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 05:29:49,579 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 [2025-02-08 05:29:49,579 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)] === [2025-02-08 05:29:49,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:49,580 INFO L85 PathProgramCache]: Analyzing trace with hash -538790326, now seen corresponding path program 2 times [2025-02-08 05:29:49,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:49,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693856146] [2025-02-08 05:29:49,580 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:29:49,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:49,610 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 135 statements into 2 equivalence classes. [2025-02-08 05:29:49,613 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 51 of 135 statements. [2025-02-08 05:29:49,613 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:29:49,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-02-08 05:29:49,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:49,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693856146] [2025-02-08 05:29:49,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693856146] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:49,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:49,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:49,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445044066] [2025-02-08 05:29:49,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:49,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:49,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:49,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:49,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:51,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 753 out of 1061 [2025-02-08 05:29:51,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 961 places, 967 transitions, 1975 flow. Second operand has 6 states, 6 states have (on average 756.3333333333334) internal successors, (4538), 6 states have internal predecessors, (4538), 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) [2025-02-08 05:29:51,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:51,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 753 of 1061 [2025-02-08 05:29:51,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand