./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix037.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix037.opt.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 be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:06:59,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:06:59,390 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:06:59,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:06:59,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:06:59,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:06:59,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:06:59,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:06:59,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:06:59,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:06:59,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:06:59,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:06:59,425 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:06:59,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:06:59,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:06:59,425 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:06:59,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:06:59,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:06:59,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:06:59,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:06:59,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:06:59,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:06:59,426 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:06:59,426 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:06:59,427 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:06:59,427 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:06:59,427 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:06:59,427 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:06:59,427 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:06:59,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:06:59,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:06:59,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:06:59,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:06:59,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:06:59,428 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:06:59,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:06:59,428 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:06:59,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:06:59,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:06:59,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:06:59,429 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:06:59,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:06:59,429 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 -> be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef [2025-02-06 09:06:59,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:06:59,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:06:59,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:06:59,815 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:06:59,816 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:06:59,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix037.opt.i [2025-02-06 09:07:01,196 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7eec59f60/cb99cccc9bbf4a0888431a1a65e1ba19/FLAGcee88efe0 [2025-02-06 09:07:01,667 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:07:01,672 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix037.opt.i [2025-02-06 09:07:01,688 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7eec59f60/cb99cccc9bbf4a0888431a1a65e1ba19/FLAGcee88efe0 [2025-02-06 09:07:01,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7eec59f60/cb99cccc9bbf4a0888431a1a65e1ba19 [2025-02-06 09:07:01,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:07:01,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:07:01,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:07:01,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:07:01,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:07:01,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:07:01" (1/1) ... [2025-02-06 09:07:01,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd6c1b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:01, skipping insertion in model container [2025-02-06 09:07:01,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:07:01" (1/1) ... [2025-02-06 09:07:01,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:07:02,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:07:02,231 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:07:02,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:07:02,374 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:07:02,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02 WrapperNode [2025-02-06 09:07:02,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:07:02,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:07:02,379 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:07:02,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:07:02,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,420 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,470 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 523 [2025-02-06 09:07:02,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:07:02,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:07:02,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:07:02,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:07:02,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,519 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:07:02,531 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:07:02,532 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:07:02,532 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:07:02,533 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (1/1) ... [2025-02-06 09:07:02,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:07:02,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:07:02,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:07:02,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:07:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 09:07:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:07:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 09:07:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 09:07:02,605 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 09:07:02,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 09:07:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 09:07:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 09:07:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 09:07:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 09:07:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:07:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 09:07:02,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:07:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:07:02,608 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:07:02,832 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:07:02,834 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:07:04,227 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:07:04,228 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:07:07,820 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:07:07,866 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:07:08,023 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:07:08,023 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:07:08,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:07:08 BoogieIcfgContainer [2025-02-06 09:07:08,027 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:07:08,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:07:08,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:07:08,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:07:08,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:07:01" (1/3) ... [2025-02-06 09:07:08,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b11c9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:07:08, skipping insertion in model container [2025-02-06 09:07:08,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:07:02" (2/3) ... [2025-02-06 09:07:08,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b11c9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:07:08, skipping insertion in model container [2025-02-06 09:07:08,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:07:08" (3/3) ... [2025-02-06 09:07:08,040 INFO L128 eAbstractionObserver]: Analyzing ICFG mix037.opt.i [2025-02-06 09:07:08,061 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:07:08,063 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix037.opt.i that has 5 procedures, 332 locations, 1 initial locations, 0 loop locations, and 200 error locations. [2025-02-06 09:07:08,064 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:07:08,476 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:07:08,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 344 places, 378 transitions, 772 flow [2025-02-06 09:07:09,220 INFO L124 PetriNetUnfolderBase]: 47/374 cut-off events. [2025-02-06 09:07:09,224 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:07:09,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 374 events. 47/374 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 1747 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 335. Up to 2 conditions per place. [2025-02-06 09:07:09,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 344 places, 378 transitions, 772 flow [2025-02-06 09:07:09,283 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 340 places, 374 transitions, 760 flow [2025-02-06 09:07:09,297 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:07:09,315 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;@6e4d5f8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:07:09,315 INFO L334 AbstractCegarLoop]: Starting to check reachability of 366 error locations. [2025-02-06 09:07:09,331 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:07:09,331 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-02-06 09:07:09,331 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:07:09,331 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:07:09,332 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] [2025-02-06 09:07:09,335 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err3ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 362 more)] === [2025-02-06 09:07:09,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:07:09,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1076016377, now seen corresponding path program 1 times [2025-02-06 09:07:09,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:07:09,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116902337] [2025-02-06 09:07:09,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:07:09,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:07:09,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-06 09:07:09,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-06 09:07:09,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:07:09,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:07:09,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:07:09,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:07:09,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116902337] [2025-02-06 09:07:09,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116902337] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:07:09,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:07:09,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:07:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138420871] [2025-02-06 09:07:09,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:07:09,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:07:09,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:07:09,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:07:09,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:07:09,641 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 378 [2025-02-06 09:07:09,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 374 transitions, 760 flow. Second operand has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:07:09,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:07:09,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 378 [2025-02-06 09:07:09,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:07:55,568 INFO L124 PetriNetUnfolderBase]: 12245/31066 cut-off events. [2025-02-06 09:07:55,568 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-02-06 09:07:55,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47284 conditions, 31066 events. 12245/31066 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1206. Compared 370562 event pairs, 10870 based on Foata normal form. 2568/30314 useless extension candidates. Maximal degree in co-relation 47230. Up to 15901 conditions per place. [2025-02-06 09:07:55,897 INFO L140 encePairwiseOnDemand]: 135/378 looper letters, 27 selfloop transitions, 0 changer transitions 0/129 dead transitions. [2025-02-06 09:07:55,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 129 transitions, 324 flow [2025-02-06 09:07:55,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:07:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:07:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 484 transitions. [2025-02-06 09:07:55,919 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6402116402116402 [2025-02-06 09:07:55,922 INFO L175 Difference]: Start difference. First operand has 340 places, 374 transitions, 760 flow. Second operand 2 states and 484 transitions. [2025-02-06 09:07:55,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 129 transitions, 324 flow [2025-02-06 09:07:55,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 129 transitions, 320 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 09:07:55,934 INFO L231 Difference]: Finished difference. Result has 137 places, 129 transitions, 266 flow [2025-02-06 09:07:55,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=378, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=266, PETRI_PLACES=137, PETRI_TRANSITIONS=129} [2025-02-06 09:07:55,940 INFO L279 CegarLoopForPetriNet]: 340 programPoint places, -203 predicate places. [2025-02-06 09:07:55,941 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 129 transitions, 266 flow [2025-02-06 09:07:55,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:07:55,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:07:55,941 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] [2025-02-06 09:07:55,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:07:55,942 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 362 more)] === [2025-02-06 09:07:55,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:07:55,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2040352339, now seen corresponding path program 1 times [2025-02-06 09:07:55,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:07:55,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416148074] [2025-02-06 09:07:55,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:07:55,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:07:56,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-06 09:07:56,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 09:07:56,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:07:56,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:07:56,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:07:56,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:07:56,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416148074] [2025-02-06 09:07:56,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416148074] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:07:56,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:07:56,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:07:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039223574] [2025-02-06 09:07:56,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:07:56,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:07:56,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:07:56,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:07:56,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:07:56,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 378 [2025-02-06 09:07:56,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 129 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:07:56,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:07:56,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 378 [2025-02-06 09:07:56,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand