./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:44:49,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:44:49,403 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:44:49,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:44:49,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:44:49,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:44:49,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:44:49,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:44:49,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:44:49,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:44:49,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:44:49,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:44:49,447 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:44:49,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:44:49,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:44:49,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:44:49,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:44:49,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:44:49,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:44:49,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:44:49,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:44:49,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:44:49,452 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:44:49,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:44:49,456 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:44:49,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:44:49,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:44:49,457 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:44:49,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:44:49,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:44:49,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:44:49,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:44:49,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:44:49,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:44:49,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:44:49,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:44:49,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:44:49,460 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:44:49,460 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:44:49,461 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:44:49,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:44:49,461 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9d301fd24d7dbc3684a100e80ac453023513d8631f488025251adcc1a8646b5 [2024-11-09 06:44:49,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:44:49,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:44:49,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:44:49,760 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:44:49,761 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:44:49,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2024-11-09 06:44:51,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:44:51,537 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:44:51,538 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_power.oepc.i [2024-11-09 06:44:51,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee366d0a4/40daf190051245808e8fa73304901193/FLAG6fb15e05e [2024-11-09 06:44:51,570 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee366d0a4/40daf190051245808e8fa73304901193 [2024-11-09 06:44:51,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:44:51,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:44:51,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:44:51,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:44:51,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:44:51,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:44:51" (1/1) ... [2024-11-09 06:44:51,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64726c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:51, skipping insertion in model container [2024-11-09 06:44:51,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:44:51" (1/1) ... [2024-11-09 06:44:51,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:44:52,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:44:52,222 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:44:52,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:44:52,362 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:44:52,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52 WrapperNode [2024-11-09 06:44:52,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:44:52,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:44:52,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:44:52,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:44:52,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,455 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 324 [2024-11-09 06:44:52,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:44:52,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:44:52,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:44:52,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:44:52,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:44:52,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:44:52,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:44:52,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:44:52,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (1/1) ... [2024-11-09 06:44:52,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:44:52,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:44:52,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:44:52,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:44:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:44:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:44:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 06:44:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:44:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 06:44:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 06:44:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 06:44:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 06:44:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 06:44:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 06:44:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 06:44:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 06:44:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:44:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 06:44:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:44:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:44:52,691 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:44:52,950 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:44:52,952 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:44:55,052 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:44:55,052 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:45:07,798 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:45:07,798 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:45:07,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:45:07 BoogieIcfgContainer [2024-11-09 06:45:07,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:45:07,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:45:07,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:45:07,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:45:07,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:44:51" (1/3) ... [2024-11-09 06:45:07,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76041280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:45:07, skipping insertion in model container [2024-11-09 06:45:07,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:52" (2/3) ... [2024-11-09 06:45:07,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76041280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:45:07, skipping insertion in model container [2024-11-09 06:45:07,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:45:07" (3/3) ... [2024-11-09 06:45:07,810 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_power.oepc.i [2024-11-09 06:45:07,829 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:45:07,830 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 330 error locations. [2024-11-09 06:45:07,830 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:45:09,028 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:45:09,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 488 places, 478 transitions, 972 flow [2024-11-09 06:45:09,816 INFO L124 PetriNetUnfolderBase]: 3/474 cut-off events. [2024-11-09 06:45:09,816 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:45:09,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 474 events. 3/474 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 3215 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 417. Up to 2 conditions per place. [2024-11-09 06:45:09,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 488 places, 478 transitions, 972 flow [2024-11-09 06:45:09,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 484 places, 474 transitions, 960 flow [2024-11-09 06:45:09,905 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:45:09,915 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;@1afa8f0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:45:09,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 619 error locations. [2024-11-09 06:45:09,937 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:45:09,937 INFO L124 PetriNetUnfolderBase]: 0/65 cut-off events. [2024-11-09 06:45:09,938 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:45:09,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:45:09,939 INFO L204 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] [2024-11-09 06:45:09,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 615 more)] === [2024-11-09 06:45:09,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:09,948 INFO L85 PathProgramCache]: Analyzing trace with hash -375975143, now seen corresponding path program 1 times [2024-11-09 06:45:09,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:45:09,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290348669] [2024-11-09 06:45:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:09,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:45:10,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:45:10,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290348669] [2024-11-09 06:45:10,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290348669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:10,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:10,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:45:10,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838498877] [2024-11-09 06:45:10,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:10,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:45:10,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:45:10,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:45:10,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:45:10,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 478 [2024-11-09 06:45:10,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 474 transitions, 960 flow. Second operand has 2 states, 2 states have (on average 129.0) internal successors, (258), 2 states have internal predecessors, (258), 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) [2024-11-09 06:45:10,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:45:10,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 478 [2024-11-09 06:45:10,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:45:19,517 INFO L124 PetriNetUnfolderBase]: 2173/6746 cut-off events. [2024-11-09 06:45:19,517 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-11-09 06:45:19,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9887 conditions, 6746 events. 2173/6746 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 68831 event pairs, 2173 based on Foata normal form. 537/6787 useless extension candidates. Maximal degree in co-relation 9815. Up to 3006 conditions per place. [2024-11-09 06:45:19,592 INFO L140 encePairwiseOnDemand]: 147/478 looper letters, 18 selfloop transitions, 0 changer transitions 0/141 dead transitions. [2024-11-09 06:45:19,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 141 transitions, 330 flow [2024-11-09 06:45:19,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:45:19,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:45:19,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 605 transitions. [2024-11-09 06:45:19,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6328451882845189 [2024-11-09 06:45:19,616 INFO L175 Difference]: Start difference. First operand has 484 places, 474 transitions, 960 flow. Second operand 2 states and 605 transitions. [2024-11-09 06:45:19,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 141 transitions, 330 flow [2024-11-09 06:45:19,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 141 transitions, 326 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 06:45:19,625 INFO L231 Difference]: Finished difference. Result has 151 places, 141 transitions, 290 flow [2024-11-09 06:45:19,628 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=290, PETRI_PLACES=151, PETRI_TRANSITIONS=141} [2024-11-09 06:45:19,634 INFO L277 CegarLoopForPetriNet]: 484 programPoint places, -333 predicate places. [2024-11-09 06:45:19,635 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 141 transitions, 290 flow [2024-11-09 06:45:19,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 129.0) internal successors, (258), 2 states have internal predecessors, (258), 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) [2024-11-09 06:45:19,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:45:19,636 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:45:19,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:45:19,636 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 615 more)] === [2024-11-09 06:45:19,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1071504031, now seen corresponding path program 1 times [2024-11-09 06:45:19,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:45:19,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996241142] [2024-11-09 06:45:19,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:19,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:19,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:45:19,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:45:19,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996241142] [2024-11-09 06:45:19,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996241142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:19,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:19,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:19,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814691515] [2024-11-09 06:45:19,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:19,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:19,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:45:19,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:19,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:19,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 478 [2024-11-09 06:45:19,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 141 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2024-11-09 06:45:19,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:45:19,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 478 [2024-11-09 06:45:19,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand