./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_power.opt.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 6b69d29db6700923687b32c5d8fab6e8f05fe2198d87348098263d957793e472 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:16:30,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:16:30,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:16:30,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:16:30,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:16:30,594 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:16:30,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:16:30,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:16:30,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:16:30,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:16:30,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:16:30,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:16:30,598 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:16:30,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:16:30,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:16:30,599 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:16:30,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:16:30,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:16:30,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:16:30,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:16:30,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:16:30,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:16:30,607 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:16:30,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:16:30,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:16:30,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:16:30,609 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:16:30,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:16:30,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:16:30,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:16:30,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:16:30,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:16:30,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:16:30,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:16:30,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:16:30,611 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:16:30,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:16:30,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:16:30,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:16:30,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:16:30,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:16:30,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b69d29db6700923687b32c5d8fab6e8f05fe2198d87348098263d957793e472 [2024-10-24 15:16:30,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:16:30,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:16:30,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:16:30,923 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:16:30,923 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:16:30,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_power.opt.i [2024-10-24 15:16:32,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:16:32,721 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:16:32,722 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_power.opt.i [2024-10-24 15:16:32,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd8234ce2/25431b426f1f4125be303e9c3217d69a/FLAG6d8c26f5c [2024-10-24 15:16:32,761 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd8234ce2/25431b426f1f4125be303e9c3217d69a [2024-10-24 15:16:32,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:16:32,765 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:16:32,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:16:32,769 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:16:32,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:16:32,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:16:32" (1/1) ... [2024-10-24 15:16:32,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ceea350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:32, skipping insertion in model container [2024-10-24 15:16:32,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:16:32" (1/1) ... [2024-10-24 15:16:32,827 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:16:33,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:16:33,343 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:16:33,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:16:33,595 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:16:33,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33 WrapperNode [2024-10-24 15:16:33,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:16:33,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:16:33,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:16:33,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:16:33,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,710 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 797 [2024-10-24 15:16:33,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:16:33,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:16:33,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:16:33,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:16:33,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,825 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:16:33,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:16:33,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:16:33,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:16:33,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (1/1) ... [2024-10-24 15:16:33,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:16:33,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:16:33,882 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) [2024-10-24 15:16:33,887 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 [2024-10-24 15:16:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:16:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:16:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 15:16:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:16:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 15:16:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 15:16:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 15:16:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 15:16:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 15:16:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 15:16:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 15:16:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 15:16:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:16:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 15:16:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:16:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:16:33,939 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:16:34,218 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:16:34,220 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:16:36,485 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:16:36,486 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:16:49,380 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:16:49,381 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:16:49,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:16:49 BoogieIcfgContainer [2024-10-24 15:16:49,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:16:49,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:16:49,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:16:49,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:16:49,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:16:32" (1/3) ... [2024-10-24 15:16:49,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bab73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:16:49, skipping insertion in model container [2024-10-24 15:16:49,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:16:33" (2/3) ... [2024-10-24 15:16:49,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18bab73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:16:49, skipping insertion in model container [2024-10-24 15:16:49,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:16:49" (3/3) ... [2024-10-24 15:16:49,391 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_power.opt.i [2024-10-24 15:16:49,409 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:16:49,410 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 412 error locations. [2024-10-24 15:16:49,410 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:16:50,333 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:16:50,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 568 places, 558 transitions, 1132 flow [2024-10-24 15:16:50,954 INFO L124 PetriNetUnfolderBase]: 3/554 cut-off events. [2024-10-24 15:16:50,955 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:16:50,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 554 events. 3/554 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 3790 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 499. Up to 2 conditions per place. [2024-10-24 15:16:50,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 568 places, 558 transitions, 1132 flow [2024-10-24 15:16:51,032 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 564 places, 554 transitions, 1120 flow [2024-10-24 15:16:51,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:16:51,058 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;@68bb09a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:16:51,058 INFO L334 AbstractCegarLoop]: Starting to check reachability of 689 error locations. [2024-10-24 15:16:51,071 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:16:51,073 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2024-10-24 15:16:51,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:16:51,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:16:51,074 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] [2024-10-24 15:16:51,075 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 685 more)] === [2024-10-24 15:16:51,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:16:51,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1210373583, now seen corresponding path program 1 times [2024-10-24 15:16:51,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:16:51,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283840306] [2024-10-24 15:16:51,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:16:51,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:16:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:16:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:16:51,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:16:51,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283840306] [2024-10-24 15:16:51,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283840306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:16:51,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:16:51,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 15:16:51,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803975114] [2024-10-24 15:16:51,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:16:51,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:16:51,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:16:51,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:16:51,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:16:51,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 558 [2024-10-24 15:16:51,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 554 transitions, 1120 flow. Second operand has 2 states, 2 states have (on average 124.0) internal successors, (248), 2 states have internal predecessors, (248), 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) [2024-10-24 15:16:51,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:16:51,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 558 [2024-10-24 15:16:51,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand