./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.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 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:29:07,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:29:07,247 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:29:07,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:29:07,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:29:07,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:29:07,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:29:07,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:29:07,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:29:07,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:29:07,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:29:07,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:29:07,266 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:29:07,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:29:07,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:29:07,266 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:29:07,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:29:07,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:29:07,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:29:07,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:29:07,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:29:07,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:29:07,267 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:29:07,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:29:07,267 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:29:07,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:29:07,267 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:29:07,267 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:29:07,267 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:29:07,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:29:07,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:29:07,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:29:07,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:29:07,269 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 -> 654ba073723c5bebcf706552b3cd58bc95cc07bc71a7e60391f80a16de89dbcb [2025-02-08 05:29:07,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:29:07,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:29:07,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:29:07,508 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:29:07,509 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:29:07,510 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2025-02-08 05:29:08,861 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a44b81dde/8046710b522e43aea5f3c09916b64b99/FLAGe463b78bc [2025-02-08 05:29:09,152 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:29:09,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_2t.i [2025-02-08 05:29:09,167 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a44b81dde/8046710b522e43aea5f3c09916b64b99/FLAGe463b78bc [2025-02-08 05:29:09,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a44b81dde/8046710b522e43aea5f3c09916b64b99 [2025-02-08 05:29:09,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:29:09,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:29:09,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:29:09,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:29:09,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:29:09,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:09,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c81e5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09, skipping insertion in model container [2025-02-08 05:29:09,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:09,472 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:29:09,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:29:09,805 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:29:09,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:29:09,902 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:29:09,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09 WrapperNode [2025-02-08 05:29:09,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:29:09,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:29:09,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:29:09,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:29:09,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:09,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:09,959 INFO L138 Inliner]: procedures = 174, calls = 89, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 867 [2025-02-08 05:29:09,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:29:09,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:29:09,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:29:09,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:29:09,968 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:09,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:09,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:09,985 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,026 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:29:10,045 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:29:10,045 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:29:10,045 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:29:10,046 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (1/1) ... [2025-02-08 05:29:10,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:29:10,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:29:10,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:29:10,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:29:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:29:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:29:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:29:10,118 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-02-08 05:29:10,119 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-02-08 05:29:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:29:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-08 05:29:10,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:29:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-08 05:29:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:29:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:29:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:29:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:29:10,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:29:10,121 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:29:10,244 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:29:10,245 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:29:11,242 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:29:11,242 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:29:11,282 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:29:11,285 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:29:11,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:29:11 BoogieIcfgContainer [2025-02-08 05:29:11,286 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:29:11,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:29:11,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:29:11,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:29:11,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:29:09" (1/3) ... [2025-02-08 05:29:11,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518722a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:29:11, skipping insertion in model container [2025-02-08 05:29:11,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:29:09" (2/3) ... [2025-02-08 05:29:11,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518722a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:29:11, skipping insertion in model container [2025-02-08 05:29:11,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:29:11" (3/3) ... [2025-02-08 05:29:11,296 INFO L128 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_2t.i [2025-02-08 05:29:11,307 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:29:11,309 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG one_time_barrier_twice_2t.i that has 2 procedures, 981 locations, 1 initial locations, 16 loop locations, and 79 error locations. [2025-02-08 05:29:11,310 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:29:11,528 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 05:29:11,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 984 places, 1056 transitions, 2119 flow [2025-02-08 05:29:12,144 INFO L124 PetriNetUnfolderBase]: 112/1551 cut-off events. [2025-02-08 05:29:12,146 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:29:12,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1551 events. 112/1551 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5755 event pairs, 0 based on Foata normal form. 0/1313 useless extension candidates. Maximal degree in co-relation 919. Up to 4 conditions per place. [2025-02-08 05:29:12,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 984 places, 1056 transitions, 2119 flow [2025-02-08 05:29:12,211 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 984 places, 1056 transitions, 2119 flow [2025-02-08 05:29:12,217 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:29:12,228 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;@5aee01ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:29:12,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2025-02-08 05:29:12,238 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:29:12,242 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-02-08 05:29:12,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:29:12,243 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:12,243 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] [2025-02-08 05:29:12,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-08 05:29:12,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash 162635019, now seen corresponding path program 1 times [2025-02-08 05:29:12,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:12,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713235951] [2025-02-08 05:29:12,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:12,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:12,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-08 05:29:12,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 05:29:12,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:12,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:13,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:13,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:13,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713235951] [2025-02-08 05:29:13,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713235951] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:13,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:13,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:13,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377542548] [2025-02-08 05:29:13,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:13,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:13,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:13,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:14,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 751 out of 1056 [2025-02-08 05:29:14,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 984 places, 1056 transitions, 2119 flow. Second operand has 6 states, 6 states have (on average 752.5) internal successors, (4515), 6 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:14,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:14,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 751 of 1056 [2025-02-08 05:29:14,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:24,119 INFO L124 PetriNetUnfolderBase]: 12456/61898 cut-off events. [2025-02-08 05:29:24,119 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2025-02-08 05:29:24,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85273 conditions, 61898 events. 12456/61898 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 708967 event pairs, 11413 based on Foata normal form. 6046/60489 useless extension candidates. Maximal degree in co-relation 84543. Up to 23365 conditions per place. [2025-02-08 05:29:24,368 INFO L140 encePairwiseOnDemand]: 990/1056 looper letters, 239 selfloop transitions, 5 changer transitions 6/967 dead transitions. [2025-02-08 05:29:24,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 960 places, 967 transitions, 2429 flow [2025-02-08 05:29:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:24,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:24,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4811 transitions. [2025-02-08 05:29:24,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7593118686868687 [2025-02-08 05:29:24,390 INFO L175 Difference]: Start difference. First operand has 984 places, 1056 transitions, 2119 flow. Second operand 6 states and 4811 transitions. [2025-02-08 05:29:24,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 960 places, 967 transitions, 2429 flow [2025-02-08 05:29:24,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 967 transitions, 2429 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:29:24,415 INFO L231 Difference]: Finished difference. Result has 960 places, 961 transitions, 1939 flow [2025-02-08 05:29:24,419 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1056, PETRI_DIFFERENCE_MINUEND_FLOW=1941, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=962, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1939, PETRI_PLACES=960, PETRI_TRANSITIONS=961} [2025-02-08 05:29:24,424 INFO L279 CegarLoopForPetriNet]: 984 programPoint places, -24 predicate places. [2025-02-08 05:29:24,424 INFO L471 AbstractCegarLoop]: Abstraction has has 960 places, 961 transitions, 1939 flow [2025-02-08 05:29:24,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 752.5) internal successors, (4515), 6 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:24,427 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:24,427 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] [2025-02-08 05:29:24,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:29:24,427 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-08 05:29:24,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:24,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1893536151, now seen corresponding path program 1 times [2025-02-08 05:29:24,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:24,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906261254] [2025-02-08 05:29:24,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:24,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:24,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-08 05:29:24,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-08 05:29:24,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:24,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:24,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:24,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:24,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906261254] [2025-02-08 05:29:24,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906261254] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:24,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:24,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:29:24,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384879292] [2025-02-08 05:29:24,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:24,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:29:24,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:24,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:29:24,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:29:24,567 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 968 out of 1056 [2025-02-08 05:29:24,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 961 transitions, 1939 flow. Second operand has 3 states, 3 states have (on average 969.3333333333334) internal successors, (2908), 3 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:24,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:24,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 968 of 1056 [2025-02-08 05:29:24,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:25,287 INFO L124 PetriNetUnfolderBase]: 223/4867 cut-off events. [2025-02-08 05:29:25,289 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-08 05:29:25,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5190 conditions, 4867 events. 223/4867 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 35242 event pairs, 110 based on Foata normal form. 1/4206 useless extension candidates. Maximal degree in co-relation 5106. Up to 306 conditions per place. [2025-02-08 05:29:25,319 INFO L140 encePairwiseOnDemand]: 1053/1056 looper letters, 27 selfloop transitions, 2 changer transitions 0/962 dead transitions. [2025-02-08 05:29:25,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 962 transitions, 1999 flow [2025-02-08 05:29:25,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:29:25,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:29:25,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2934 transitions. [2025-02-08 05:29:25,323 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9261363636363636 [2025-02-08 05:29:25,323 INFO L175 Difference]: Start difference. First operand has 960 places, 961 transitions, 1939 flow. Second operand 3 states and 2934 transitions. [2025-02-08 05:29:25,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 962 transitions, 1999 flow [2025-02-08 05:29:25,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 951 places, 962 transitions, 1989 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:29:25,334 INFO L231 Difference]: Finished difference. Result has 952 places, 962 transitions, 1941 flow [2025-02-08 05:29:25,335 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1056, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=949, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1941, PETRI_PLACES=952, PETRI_TRANSITIONS=962} [2025-02-08 05:29:25,336 INFO L279 CegarLoopForPetriNet]: 984 programPoint places, -32 predicate places. [2025-02-08 05:29:25,336 INFO L471 AbstractCegarLoop]: Abstraction has has 952 places, 962 transitions, 1941 flow [2025-02-08 05:29:25,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 969.3333333333334) internal successors, (2908), 3 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:25,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:25,338 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] [2025-02-08 05:29:25,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:29:25,338 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-08 05:29:25,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1794295789, now seen corresponding path program 1 times [2025-02-08 05:29:25,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:25,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203726241] [2025-02-08 05:29:25,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:25,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:25,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 05:29:25,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 05:29:25,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:25,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:25,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:29:25,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:25,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203726241] [2025-02-08 05:29:25,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203726241] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:25,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:25,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:25,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417987846] [2025-02-08 05:29:25,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:25,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:25,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:25,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:25,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:26,697 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 751 out of 1056 [2025-02-08 05:29:26,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 962 transitions, 1941 flow. Second operand has 6 states, 6 states have (on average 752.5) internal successors, (4515), 6 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:26,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:26,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 751 of 1056 [2025-02-08 05:29:26,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:36,729 INFO L124 PetriNetUnfolderBase]: 12456/61919 cut-off events. [2025-02-08 05:29:36,730 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-02-08 05:29:36,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85309 conditions, 61919 events. 12456/61919 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 708742 event pairs, 11413 based on Foata normal form. 0/54467 useless extension candidates. Maximal degree in co-relation 85230. Up to 23368 conditions per place. [2025-02-08 05:29:36,962 INFO L140 encePairwiseOnDemand]: 1050/1056 looper letters, 240 selfloop transitions, 5 changer transitions 0/961 dead transitions. [2025-02-08 05:29:36,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 961 transitions, 2429 flow [2025-02-08 05:29:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:36,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4751 transitions. [2025-02-08 05:29:36,969 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7498421717171717 [2025-02-08 05:29:36,969 INFO L175 Difference]: Start difference. First operand has 952 places, 962 transitions, 1941 flow. Second operand 6 states and 4751 transitions. [2025-02-08 05:29:36,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 961 transitions, 2429 flow [2025-02-08 05:29:36,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 961 transitions, 2427 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:29:36,980 INFO L231 Difference]: Finished difference. Result has 955 places, 961 transitions, 1947 flow [2025-02-08 05:29:36,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1056, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1947, PETRI_PLACES=955, PETRI_TRANSITIONS=961} [2025-02-08 05:29:36,982 INFO L279 CegarLoopForPetriNet]: 984 programPoint places, -29 predicate places. [2025-02-08 05:29:36,982 INFO L471 AbstractCegarLoop]: Abstraction has has 955 places, 961 transitions, 1947 flow [2025-02-08 05:29:36,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 752.5) internal successors, (4515), 6 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:36,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:36,985 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] [2025-02-08 05:29:36,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:29:36,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-08 05:29:36,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:36,985 INFO L85 PathProgramCache]: Analyzing trace with hash 922040216, now seen corresponding path program 1 times [2025-02-08 05:29:36,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:36,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205132600] [2025-02-08 05:29:36,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:36,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:36,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-02-08 05:29:37,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-02-08 05:29:37,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:37,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 05:29:37,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:37,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205132600] [2025-02-08 05:29:37,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205132600] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:37,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:37,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:37,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795534040] [2025-02-08 05:29:37,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:37,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:37,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:37,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:37,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:38,575 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 751 out of 1056 [2025-02-08 05:29:38,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 961 transitions, 1947 flow. Second operand has 6 states, 6 states have (on average 752.5) internal successors, (4515), 6 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:38,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:38,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 751 of 1056 [2025-02-08 05:29:38,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:48,172 INFO L124 PetriNetUnfolderBase]: 12456/61917 cut-off events. [2025-02-08 05:29:48,173 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-02-08 05:29:48,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85316 conditions, 61917 events. 12456/61917 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 708733 event pairs, 11413 based on Foata normal form. 0/54467 useless extension candidates. Maximal degree in co-relation 85223. Up to 23368 conditions per place. [2025-02-08 05:29:48,405 INFO L140 encePairwiseOnDemand]: 1050/1056 looper letters, 240 selfloop transitions, 5 changer transitions 0/960 dead transitions. [2025-02-08 05:29:48,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 960 transitions, 2435 flow [2025-02-08 05:29:48,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:29:48,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:29:48,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4751 transitions. [2025-02-08 05:29:48,412 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7498421717171717 [2025-02-08 05:29:48,412 INFO L175 Difference]: Start difference. First operand has 955 places, 961 transitions, 1947 flow. Second operand 6 states and 4751 transitions. [2025-02-08 05:29:48,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 960 transitions, 2435 flow [2025-02-08 05:29:48,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 954 places, 960 transitions, 2425 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:29:48,423 INFO L231 Difference]: Finished difference. Result has 954 places, 960 transitions, 1945 flow [2025-02-08 05:29:48,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1056, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=949, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1945, PETRI_PLACES=954, PETRI_TRANSITIONS=960} [2025-02-08 05:29:48,425 INFO L279 CegarLoopForPetriNet]: 984 programPoint places, -30 predicate places. [2025-02-08 05:29:48,425 INFO L471 AbstractCegarLoop]: Abstraction has has 954 places, 960 transitions, 1945 flow [2025-02-08 05:29:48,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 752.5) internal successors, (4515), 6 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:48,427 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:48,427 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:29:48,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:29:48,428 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-08 05:29:48,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:48,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1920587057, now seen corresponding path program 1 times [2025-02-08 05:29:48,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:48,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677174207] [2025-02-08 05:29:48,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:48,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:48,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 05:29:48,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 05:29:48,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:48,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 05:29:48,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:48,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677174207] [2025-02-08 05:29:48,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677174207] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:29:48,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275725514] [2025-02-08 05:29:48,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:29:48,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:29:48,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:29:48,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:29:48,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 05:29:48,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-08 05:29:48,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-08 05:29:48,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:29:48,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:48,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:29:48,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:29:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 05:29:48,676 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:29:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 05:29:48,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275725514] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:29:48,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:29:48,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2025-02-08 05:29:48,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777995953] [2025-02-08 05:29:48,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:29:48,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 05:29:48,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:48,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 05:29:48,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:29:48,808 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 967 out of 1056 [2025-02-08 05:29:48,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 954 places, 960 transitions, 1945 flow. Second operand has 5 states, 5 states have (on average 968.8) internal successors, (4844), 5 states have internal predecessors, (4844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:48,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:48,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 967 of 1056 [2025-02-08 05:29:48,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:29:49,625 INFO L124 PetriNetUnfolderBase]: 223/4865 cut-off events. [2025-02-08 05:29:49,626 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-08 05:29:49,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5196 conditions, 4865 events. 223/4865 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 35033 event pairs, 110 based on Foata normal form. 1/4208 useless extension candidates. Maximal degree in co-relation 5089. Up to 305 conditions per place. [2025-02-08 05:29:49,666 INFO L140 encePairwiseOnDemand]: 1052/1056 looper letters, 28 selfloop transitions, 4 changer transitions 0/962 dead transitions. [2025-02-08 05:29:49,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 962 transitions, 2013 flow [2025-02-08 05:29:49,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:29:49,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 05:29:49,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3901 transitions. [2025-02-08 05:29:49,672 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.923532196969697 [2025-02-08 05:29:49,672 INFO L175 Difference]: Start difference. First operand has 954 places, 960 transitions, 1945 flow. Second operand 4 states and 3901 transitions. [2025-02-08 05:29:49,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 962 transitions, 2013 flow [2025-02-08 05:29:49,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 962 transitions, 2003 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:29:49,682 INFO L231 Difference]: Finished difference. Result has 954 places, 961 transitions, 1955 flow [2025-02-08 05:29:49,683 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1056, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=949, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1955, PETRI_PLACES=954, PETRI_TRANSITIONS=961} [2025-02-08 05:29:49,684 INFO L279 CegarLoopForPetriNet]: 984 programPoint places, -30 predicate places. [2025-02-08 05:29:49,686 INFO L471 AbstractCegarLoop]: Abstraction has has 954 places, 961 transitions, 1955 flow [2025-02-08 05:29:49,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 968.8) internal successors, (4844), 5 states have internal predecessors, (4844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:49,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:29:49,688 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:29:49,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 05:29:49,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:29:49,889 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2025-02-08 05:29:49,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:29:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1501151239, now seen corresponding path program 2 times [2025-02-08 05:29:49,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:29:49,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678311404] [2025-02-08 05:29:49,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:29:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:29:49,915 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-02-08 05:29:49,920 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 102 statements. [2025-02-08 05:29:49,921 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:29:49,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:29:50,101 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-02-08 05:29:50,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:29:50,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678311404] [2025-02-08 05:29:50,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678311404] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:29:50,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:29:50,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:29:50,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551150957] [2025-02-08 05:29:50,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:29:50,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:29:50,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:29:50,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:29:50,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:29:51,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 748 out of 1056 [2025-02-08 05:29:51,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 954 places, 961 transitions, 1955 flow. Second operand has 6 states, 6 states have (on average 751.3333333333334) internal successors, (4508), 6 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:29:51,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:29:51,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 748 of 1056 [2025-02-08 05:29:51,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand