./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:26:43,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:26:43,246 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-30 10:26:43,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:26:43,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:26:43,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:26:43,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:26:43,274 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:26:43,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:26:43,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:26:43,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:26:43,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:26:43,276 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:26:43,276 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:43,277 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:43,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:26:43,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:26:43,277 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/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 -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2025-04-30 10:26:43,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:26:43,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:26:43,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:26:43,496 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:26:43,497 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:26:43,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-04-30 10:26:44,783 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fd1c6d2a/eeaccac2b4f3414c8a1133a942e580c3/FLAG92888543b [2025-04-30 10:26:44,984 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:26:44,985 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-04-30 10:26:44,993 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fd1c6d2a/eeaccac2b4f3414c8a1133a942e580c3/FLAG92888543b [2025-04-30 10:26:45,834 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fd1c6d2a/eeaccac2b4f3414c8a1133a942e580c3 [2025-04-30 10:26:45,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:26:45,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:26:45,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:45,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:26:45,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:26:45,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:45" (1/1) ... [2025-04-30 10:26:45,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31faf074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:45, skipping insertion in model container [2025-04-30 10:26:45,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:26:45" (1/1) ... [2025-04-30 10:26:45,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:26:46,120 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:46,164 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:26:46,230 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:26:46,256 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:26:46,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46 WrapperNode [2025-04-30 10:26:46,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:26:46,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:46,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:26:46,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:26:46,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,296 INFO L138 Inliner]: procedures = 162, calls = 77, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 130 [2025-04-30 10:26:46,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:26:46,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:26:46,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:26:46,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:26:46,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,318 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,319 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:26:46,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:26:46,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:26:46,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:26:46,327 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (1/1) ... [2025-04-30 10:26:46,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:26:46,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:26:46,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-30 10:26:46,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-30 10:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-30 10:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-30 10:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-30 10:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-30 10:26:46,380 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-30 10:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-30 10:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-30 10:26:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:26:46,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:26:46,381 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-30 10:26:46,460 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:26:46,461 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:26:46,703 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-30 10:26:46,703 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:26:46,720 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:26:46,720 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:26:46,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:46 BoogieIcfgContainer [2025-04-30 10:26:46,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:26:46,721 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:26:46,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:26:46,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:26:46,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:26:45" (1/3) ... [2025-04-30 10:26:46,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1521f567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:46, skipping insertion in model container [2025-04-30 10:26:46,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:26:46" (2/3) ... [2025-04-30 10:26:46,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1521f567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:26:46, skipping insertion in model container [2025-04-30 10:26:46,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:46" (3/3) ... [2025-04-30 10:26:46,728 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2025-04-30 10:26:46,738 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:26:46,741 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_23-idxsense_nr.i that has 2 procedures, 160 locations, 159 edges, 1 initial locations, 1 loop locations, and 6 error locations. [2025-04-30 10:26:46,742 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-30 10:26:46,809 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-30 10:26:46,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 160 transitions, 324 flow [2025-04-30 10:26:46,901 INFO L116 PetriNetUnfolderBase]: 1/159 cut-off events. [2025-04-30 10:26:46,904 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:26:46,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 159 events. 1/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2025-04-30 10:26:46,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 160 transitions, 324 flow [2025-04-30 10:26:46,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 159 transitions, 321 flow [2025-04-30 10:26:46,918 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:26:46,930 INFO L340 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;@18637768, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:26:46,931 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-30 10:26:46,960 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-30 10:26:46,961 INFO L116 PetriNetUnfolderBase]: 1/97 cut-off events. [2025-04-30 10:26:46,961 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-30 10:26:46,961 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:46,966 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:46,966 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:46,970 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:46,973 INFO L85 PathProgramCache]: Analyzing trace with hash -597789785, now seen corresponding path program 1 times [2025-04-30 10:26:46,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:46,980 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973172435] [2025-04-30 10:26:46,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:46,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:47,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-04-30 10:26:47,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-04-30 10:26:47,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:47,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:47,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:47,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:47,287 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973172435] [2025-04-30 10:26:47,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973172435] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:47,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:47,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:26:47,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517348578] [2025-04-30 10:26:47,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:47,294 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:47,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:47,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:47,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:47,342 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 160 [2025-04-30 10:26:47,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 159 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2025-04-30 10:26:47,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:47,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 160 [2025-04-30 10:26:47,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:47,427 INFO L116 PetriNetUnfolderBase]: 11/298 cut-off events. [2025-04-30 10:26:47,427 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:47,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 298 events. 11/298 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 589 event pairs, 10 based on Foata normal form. 1/279 useless extension candidates. Maximal degree in co-relation 240. Up to 34 conditions per place. [2025-04-30 10:26:47,431 INFO L140 encePairwiseOnDemand]: 157/160 looper letters, 12 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2025-04-30 10:26:47,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 160 transitions, 351 flow [2025-04-30 10:26:47,433 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:47,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2025-04-30 10:26:47,444 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.95 [2025-04-30 10:26:47,445 INFO L175 Difference]: Start difference. First operand has 162 places, 159 transitions, 321 flow. Second operand 3 states and 456 transitions. [2025-04-30 10:26:47,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 160 transitions, 351 flow [2025-04-30 10:26:47,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 160 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:47,457 INFO L231 Difference]: Finished difference. Result has 164 places, 160 transitions, 332 flow [2025-04-30 10:26:47,459 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=164, PETRI_TRANSITIONS=160} [2025-04-30 10:26:47,463 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 2 predicate places. [2025-04-30 10:26:47,463 INFO L485 AbstractCegarLoop]: Abstraction has has 164 places, 160 transitions, 332 flow [2025-04-30 10:26:47,464 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2025-04-30 10:26:47,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:47,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:47,464 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:26:47,464 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:47,465 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:47,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1790833500, now seen corresponding path program 1 times [2025-04-30 10:26:47,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:47,466 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138133303] [2025-04-30 10:26:47,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:47,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:47,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-04-30 10:26:47,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-04-30 10:26:47,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:47,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:47,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:47,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:47,673 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138133303] [2025-04-30 10:26:47,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138133303] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:26:47,674 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745449061] [2025-04-30 10:26:47,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:47,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:26:47,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:26:47,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:26:47,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-30 10:26:47,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-04-30 10:26:47,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-04-30 10:26:47,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:47,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:47,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-30 10:26:47,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:26:47,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:47,850 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:26:47,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:47,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745449061] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:26:47,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:26:47,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-04-30 10:26:47,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307432201] [2025-04-30 10:26:47,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:26:47,892 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-30 10:26:47,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:47,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-30 10:26:47,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-04-30 10:26:47,926 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-04-30 10:26:47,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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) [2025-04-30 10:26:47,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:47,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-04-30 10:26:47,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:48,046 INFO L116 PetriNetUnfolderBase]: 11/305 cut-off events. [2025-04-30 10:26:48,047 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-30 10:26:48,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 305 events. 11/305 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 583 event pairs, 10 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2025-04-30 10:26:48,049 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 16 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2025-04-30 10:26:48,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 400 flow [2025-04-30 10:26:48,050 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-30 10:26:48,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-30 10:26:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1323 transitions. [2025-04-30 10:26:48,055 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.91875 [2025-04-30 10:26:48,055 INFO L175 Difference]: Start difference. First operand has 164 places, 160 transitions, 332 flow. Second operand 9 states and 1323 transitions. [2025-04-30 10:26:48,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 400 flow [2025-04-30 10:26:48,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:48,059 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2025-04-30 10:26:48,059 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2025-04-30 10:26:48,060 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 12 predicate places. [2025-04-30 10:26:48,061 INFO L485 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2025-04-30 10:26:48,062 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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) [2025-04-30 10:26:48,062 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:48,062 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:48,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-30 10:26:48,266 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:26:48,266 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:48,267 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:48,267 INFO L85 PathProgramCache]: Analyzing trace with hash 736217732, now seen corresponding path program 2 times [2025-04-30 10:26:48,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:48,267 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068930745] [2025-04-30 10:26:48,267 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:26:48,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:48,279 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 100 statements into 2 equivalence classes. [2025-04-30 10:26:48,286 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 85 of 100 statements. [2025-04-30 10:26:48,286 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:48,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:48,685 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-04-30 10:26:48,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:48,685 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068930745] [2025-04-30 10:26:48,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068930745] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:48,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:48,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:26:48,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227307131] [2025-04-30 10:26:48,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:48,686 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:26:48,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:48,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:26:48,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:26:48,904 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 160 [2025-04-30 10:26:48,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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) [2025-04-30 10:26:48,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:48,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 160 [2025-04-30 10:26:48,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:49,194 INFO L116 PetriNetUnfolderBase]: 285/1089 cut-off events. [2025-04-30 10:26:49,195 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-30 10:26:49,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 1089 events. 285/1089 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6325 event pairs, 68 based on Foata normal form. 0/1043 useless extension candidates. Maximal degree in co-relation 1628. Up to 287 conditions per place. [2025-04-30 10:26:49,202 INFO L140 encePairwiseOnDemand]: 138/160 looper letters, 98 selfloop transitions, 42 changer transitions 0/276 dead transitions. [2025-04-30 10:26:49,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 276 transitions, 880 flow [2025-04-30 10:26:49,202 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:26:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:26:49,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 922 transitions. [2025-04-30 10:26:49,205 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9604166666666667 [2025-04-30 10:26:49,205 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 922 transitions. [2025-04-30 10:26:49,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 276 transitions, 880 flow [2025-04-30 10:26:49,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 276 transitions, 874 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-04-30 10:26:49,211 INFO L231 Difference]: Finished difference. Result has 183 places, 212 transitions, 690 flow [2025-04-30 10:26:49,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=690, PETRI_PLACES=183, PETRI_TRANSITIONS=212} [2025-04-30 10:26:49,214 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 21 predicate places. [2025-04-30 10:26:49,214 INFO L485 AbstractCegarLoop]: Abstraction has has 183 places, 212 transitions, 690 flow [2025-04-30 10:26:49,215 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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) [2025-04-30 10:26:49,215 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:49,215 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:49,215 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:26:49,215 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:49,216 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:49,216 INFO L85 PathProgramCache]: Analyzing trace with hash 811982214, now seen corresponding path program 1 times [2025-04-30 10:26:49,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:49,217 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971603625] [2025-04-30 10:26:49,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:49,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:49,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-04-30 10:26:49,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-04-30 10:26:49,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:49,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:49,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:49,385 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971603625] [2025-04-30 10:26:49,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971603625] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:26:49,385 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157464691] [2025-04-30 10:26:49,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:49,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:26:49,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:26:49,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:26:49,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-30 10:26:49,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-04-30 10:26:49,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-04-30 10:26:49,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:49,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:49,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-30 10:26:49,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:26:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:49,509 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:26:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:49,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157464691] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:26:49,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:26:49,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-04-30 10:26:49,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013547265] [2025-04-30 10:26:49,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:26:49,589 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-04-30 10:26:49,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:49,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-04-30 10:26:49,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-04-30 10:26:49,611 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-04-30 10:26:49,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 212 transitions, 690 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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) [2025-04-30 10:26:49,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:49,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-04-30 10:26:49,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:49,861 INFO L116 PetriNetUnfolderBase]: 127/838 cut-off events. [2025-04-30 10:26:49,861 INFO L117 PetriNetUnfolderBase]: For 135/150 co-relation queries the response was YES. [2025-04-30 10:26:49,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 838 events. 127/838 cut-off events. For 135/150 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4664 event pairs, 45 based on Foata normal form. 4/822 useless extension candidates. Maximal degree in co-relation 1359. Up to 132 conditions per place. [2025-04-30 10:26:49,865 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 20 selfloop transitions, 21 changer transitions 0/230 dead transitions. [2025-04-30 10:26:49,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 230 transitions, 860 flow [2025-04-30 10:26:49,866 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-30 10:26:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-04-30 10:26:49,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3069 transitions. [2025-04-30 10:26:49,870 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9133928571428571 [2025-04-30 10:26:49,870 INFO L175 Difference]: Start difference. First operand has 183 places, 212 transitions, 690 flow. Second operand 21 states and 3069 transitions. [2025-04-30 10:26:49,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 230 transitions, 860 flow [2025-04-30 10:26:49,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 230 transitions, 860 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-30 10:26:49,876 INFO L231 Difference]: Finished difference. Result has 208 places, 225 transitions, 820 flow [2025-04-30 10:26:49,876 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=820, PETRI_PLACES=208, PETRI_TRANSITIONS=225} [2025-04-30 10:26:49,877 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 46 predicate places. [2025-04-30 10:26:49,877 INFO L485 AbstractCegarLoop]: Abstraction has has 208 places, 225 transitions, 820 flow [2025-04-30 10:26:49,878 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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) [2025-04-30 10:26:49,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:49,879 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:49,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-30 10:26:50,079 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-04-30 10:26:50,079 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:50,080 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:50,080 INFO L85 PathProgramCache]: Analyzing trace with hash -176528954, now seen corresponding path program 2 times [2025-04-30 10:26:50,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:50,080 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949478148] [2025-04-30 10:26:50,080 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:26:50,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:50,091 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 121 statements into 2 equivalence classes. [2025-04-30 10:26:50,095 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 86 of 121 statements. [2025-04-30 10:26:50,095 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:50,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:50,374 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-04-30 10:26:50,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:50,374 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949478148] [2025-04-30 10:26:50,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949478148] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:50,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:50,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:26:50,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094730270] [2025-04-30 10:26:50,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:50,375 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:26:50,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:50,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:26:50,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:26:50,664 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 160 [2025-04-30 10:26:50,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 225 transitions, 820 flow. Second operand has 6 states, 6 states have (on average 142.33333333333334) internal successors, (854), 6 states have internal predecessors, (854), 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) [2025-04-30 10:26:50,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:50,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 160 [2025-04-30 10:26:50,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:50,797 INFO L116 PetriNetUnfolderBase]: 141/900 cut-off events. [2025-04-30 10:26:50,798 INFO L117 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2025-04-30 10:26:50,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1642 conditions, 900 events. 141/900 cut-off events. For 146/168 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5159 event pairs, 49 based on Foata normal form. 3/880 useless extension candidates. Maximal degree in co-relation 1444. Up to 129 conditions per place. [2025-04-30 10:26:50,802 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 21 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2025-04-30 10:26:50,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 232 transitions, 886 flow [2025-04-30 10:26:50,803 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:26:50,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:26:50,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2025-04-30 10:26:50,804 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.909375 [2025-04-30 10:26:50,804 INFO L175 Difference]: Start difference. First operand has 208 places, 225 transitions, 820 flow. Second operand 6 states and 873 transitions. [2025-04-30 10:26:50,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 232 transitions, 886 flow [2025-04-30 10:26:50,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 232 transitions, 862 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-04-30 10:26:50,810 INFO L231 Difference]: Finished difference. Result has 206 places, 224 transitions, 804 flow [2025-04-30 10:26:50,810 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=206, PETRI_TRANSITIONS=224} [2025-04-30 10:26:50,811 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 44 predicate places. [2025-04-30 10:26:50,811 INFO L485 AbstractCegarLoop]: Abstraction has has 206 places, 224 transitions, 804 flow [2025-04-30 10:26:50,811 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.33333333333334) internal successors, (854), 6 states have internal predecessors, (854), 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) [2025-04-30 10:26:50,811 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:50,812 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:50,812 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:26:50,812 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:50,812 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:50,813 INFO L85 PathProgramCache]: Analyzing trace with hash -528788407, now seen corresponding path program 1 times [2025-04-30 10:26:50,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:50,813 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036844169] [2025-04-30 10:26:50,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:50,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:50,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-04-30 10:26:50,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-04-30 10:26:50,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:50,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:51,081 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:51,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:51,082 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036844169] [2025-04-30 10:26:51,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036844169] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:26:51,082 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19591553] [2025-04-30 10:26:51,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:51,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:26:51,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:26:51,084 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:26:51,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-30 10:26:51,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-04-30 10:26:51,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-04-30 10:26:51,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:51,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:51,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-30 10:26:51,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:26:51,256 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:51,257 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:26:51,428 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:26:51,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19591553] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:26:51,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:26:51,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-04-30 10:26:51,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942538379] [2025-04-30 10:26:51,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:26:51,429 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-30 10:26:51,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:51,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-30 10:26:51,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-04-30 10:26:51,458 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-04-30 10:26:51,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 224 transitions, 804 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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) [2025-04-30 10:26:51,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:51,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-04-30 10:26:51,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:51,807 INFO L116 PetriNetUnfolderBase]: 127/852 cut-off events. [2025-04-30 10:26:51,807 INFO L117 PetriNetUnfolderBase]: For 252/267 co-relation queries the response was YES. [2025-04-30 10:26:51,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 852 events. 127/852 cut-off events. For 252/267 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4670 event pairs, 45 based on Foata normal form. 3/836 useless extension candidates. Maximal degree in co-relation 1370. Up to 132 conditions per place. [2025-04-30 10:26:51,812 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 23 selfloop transitions, 30 changer transitions 0/241 dead transitions. [2025-04-30 10:26:51,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 241 transitions, 1032 flow [2025-04-30 10:26:51,812 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-04-30 10:26:51,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-04-30 10:26:51,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4376 transitions. [2025-04-30 10:26:51,818 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9116666666666666 [2025-04-30 10:26:51,818 INFO L175 Difference]: Start difference. First operand has 206 places, 224 transitions, 804 flow. Second operand 30 states and 4376 transitions. [2025-04-30 10:26:51,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 241 transitions, 1032 flow [2025-04-30 10:26:51,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 241 transitions, 1022 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-30 10:26:51,824 INFO L231 Difference]: Finished difference. Result has 234 places, 234 transitions, 946 flow [2025-04-30 10:26:51,824 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=946, PETRI_PLACES=234, PETRI_TRANSITIONS=234} [2025-04-30 10:26:51,825 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2025-04-30 10:26:51,825 INFO L485 AbstractCegarLoop]: Abstraction has has 234 places, 234 transitions, 946 flow [2025-04-30 10:26:51,826 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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) [2025-04-30 10:26:51,826 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:51,826 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:51,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-30 10:26:52,026 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:26:52,027 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:52,028 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:52,028 INFO L85 PathProgramCache]: Analyzing trace with hash -829082292, now seen corresponding path program 2 times [2025-04-30 10:26:52,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:52,028 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810104786] [2025-04-30 10:26:52,028 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:26:52,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:52,039 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-04-30 10:26:52,042 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 143 statements. [2025-04-30 10:26:52,042 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:26:52,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:52,264 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-04-30 10:26:52,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:52,265 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810104786] [2025-04-30 10:26:52,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810104786] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:52,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:52,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:26:52,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093737858] [2025-04-30 10:26:52,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:52,266 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:26:52,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:52,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:26:52,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:26:52,490 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 160 [2025-04-30 10:26:52,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 234 transitions, 946 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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) [2025-04-30 10:26:52,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:52,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 160 [2025-04-30 10:26:52,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:52,733 INFO L116 PetriNetUnfolderBase]: 445/1510 cut-off events. [2025-04-30 10:26:52,733 INFO L117 PetriNetUnfolderBase]: For 706/740 co-relation queries the response was YES. [2025-04-30 10:26:52,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1510 events. 445/1510 cut-off events. For 706/740 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9428 event pairs, 117 based on Foata normal form. 24/1510 useless extension candidates. Maximal degree in co-relation 3398. Up to 640 conditions per place. [2025-04-30 10:26:52,741 INFO L140 encePairwiseOnDemand]: 143/160 looper letters, 109 selfloop transitions, 53 changer transitions 6/325 dead transitions. [2025-04-30 10:26:52,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 325 transitions, 1650 flow [2025-04-30 10:26:52,742 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:26:52,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:26:52,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2025-04-30 10:26:52,743 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.91875 [2025-04-30 10:26:52,743 INFO L175 Difference]: Start difference. First operand has 234 places, 234 transitions, 946 flow. Second operand 6 states and 882 transitions. [2025-04-30 10:26:52,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 325 transitions, 1650 flow [2025-04-30 10:26:52,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 325 transitions, 1604 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-04-30 10:26:52,751 INFO L231 Difference]: Finished difference. Result has 226 places, 285 transitions, 1406 flow [2025-04-30 10:26:52,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=226, PETRI_TRANSITIONS=285} [2025-04-30 10:26:52,752 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 64 predicate places. [2025-04-30 10:26:52,752 INFO L485 AbstractCegarLoop]: Abstraction has has 226 places, 285 transitions, 1406 flow [2025-04-30 10:26:52,752 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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) [2025-04-30 10:26:52,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:52,752 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:52,752 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-30 10:26:52,752 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:52,753 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:52,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1653465511, now seen corresponding path program 1 times [2025-04-30 10:26:52,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:52,753 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093622003] [2025-04-30 10:26:52,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:52,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:52,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-04-30 10:26:52,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-04-30 10:26:52,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:52,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-04-30 10:26:53,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:53,097 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093622003] [2025-04-30 10:26:53,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093622003] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:53,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:53,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:26:53,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636455974] [2025-04-30 10:26:53,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:53,097 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:26:53,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:53,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:26:53,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:26:53,367 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 160 [2025-04-30 10:26:53,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 285 transitions, 1406 flow. Second operand has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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) [2025-04-30 10:26:53,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:53,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 160 [2025-04-30 10:26:53,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:53,539 INFO L116 PetriNetUnfolderBase]: 255/1247 cut-off events. [2025-04-30 10:26:53,540 INFO L117 PetriNetUnfolderBase]: For 1040/1112 co-relation queries the response was YES. [2025-04-30 10:26:53,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 1247 events. 255/1247 cut-off events. For 1040/1112 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7964 event pairs, 57 based on Foata normal form. 9/1235 useless extension candidates. Maximal degree in co-relation 2783. Up to 215 conditions per place. [2025-04-30 10:26:53,547 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 25 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2025-04-30 10:26:53,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 292 transitions, 1480 flow [2025-04-30 10:26:53,548 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:26:53,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:26:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 853 transitions. [2025-04-30 10:26:53,549 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8885416666666667 [2025-04-30 10:26:53,549 INFO L175 Difference]: Start difference. First operand has 226 places, 285 transitions, 1406 flow. Second operand 6 states and 853 transitions. [2025-04-30 10:26:53,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 292 transitions, 1480 flow [2025-04-30 10:26:53,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 292 transitions, 1472 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-04-30 10:26:53,559 INFO L231 Difference]: Finished difference. Result has 230 places, 284 transitions, 1406 flow [2025-04-30 10:26:53,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=230, PETRI_TRANSITIONS=284} [2025-04-30 10:26:53,560 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 68 predicate places. [2025-04-30 10:26:53,560 INFO L485 AbstractCegarLoop]: Abstraction has has 230 places, 284 transitions, 1406 flow [2025-04-30 10:26:53,560 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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) [2025-04-30 10:26:53,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:53,560 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:53,561 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-30 10:26:53,561 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:53,561 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:53,562 INFO L85 PathProgramCache]: Analyzing trace with hash 459282238, now seen corresponding path program 1 times [2025-04-30 10:26:53,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:53,562 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537812239] [2025-04-30 10:26:53,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:53,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:53,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-04-30 10:26:53,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-04-30 10:26:53,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:53,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-04-30 10:26:53,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:53,921 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537812239] [2025-04-30 10:26:53,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537812239] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:53,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:53,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:26:53,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137932927] [2025-04-30 10:26:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:53,922 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:26:53,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:53,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:26:53,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:26:54,147 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 160 [2025-04-30 10:26:54,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 284 transitions, 1406 flow. Second operand has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 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) [2025-04-30 10:26:54,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:54,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 160 [2025-04-30 10:26:54,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:54,466 INFO L116 PetriNetUnfolderBase]: 594/1878 cut-off events. [2025-04-30 10:26:54,466 INFO L117 PetriNetUnfolderBase]: For 2493/2538 co-relation queries the response was YES. [2025-04-30 10:26:54,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5684 conditions, 1878 events. 594/1878 cut-off events. For 2493/2538 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12362 event pairs, 150 based on Foata normal form. 25/1870 useless extension candidates. Maximal degree in co-relation 5424. Up to 891 conditions per place. [2025-04-30 10:26:54,477 INFO L140 encePairwiseOnDemand]: 143/160 looper letters, 122 selfloop transitions, 58 changer transitions 39/376 dead transitions. [2025-04-30 10:26:54,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 376 transitions, 2368 flow [2025-04-30 10:26:54,478 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:26:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-30 10:26:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 864 transitions. [2025-04-30 10:26:54,479 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9 [2025-04-30 10:26:54,480 INFO L175 Difference]: Start difference. First operand has 230 places, 284 transitions, 1406 flow. Second operand 6 states and 864 transitions. [2025-04-30 10:26:54,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 376 transitions, 2368 flow [2025-04-30 10:26:54,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 376 transitions, 2358 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-04-30 10:26:54,493 INFO L231 Difference]: Finished difference. Result has 234 places, 311 transitions, 1804 flow [2025-04-30 10:26:54,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1804, PETRI_PLACES=234, PETRI_TRANSITIONS=311} [2025-04-30 10:26:54,494 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2025-04-30 10:26:54,494 INFO L485 AbstractCegarLoop]: Abstraction has has 234 places, 311 transitions, 1804 flow [2025-04-30 10:26:54,495 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 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) [2025-04-30 10:26:54,495 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-30 10:26:54,495 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:26:54,495 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-30 10:26:54,495 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-04-30 10:26:54,496 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:26:54,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1414433471, now seen corresponding path program 1 times [2025-04-30 10:26:54,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:26:54,496 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140069224] [2025-04-30 10:26:54,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:26:54,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:26:54,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-04-30 10:26:54,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-04-30 10:26:54,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:26:54,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:26:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-04-30 10:26:54,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:26:54,608 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140069224] [2025-04-30 10:26:54,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140069224] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:26:54,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:26:54,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:26:54,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018224667] [2025-04-30 10:26:54,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:26:54,609 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:26:54,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:26:54,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:26:54,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:26:54,671 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 160 [2025-04-30 10:26:54,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 311 transitions, 1804 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2025-04-30 10:26:54,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-30 10:26:54,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 160 [2025-04-30 10:26:54,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-30 10:26:54,701 INFO L116 PetriNetUnfolderBase]: 6/275 cut-off events. [2025-04-30 10:26:54,702 INFO L117 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2025-04-30 10:26:54,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 275 events. 6/275 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 248 event pairs, 0 based on Foata normal form. 2/276 useless extension candidates. Maximal degree in co-relation 441. Up to 23 conditions per place. [2025-04-30 10:26:54,703 INFO L140 encePairwiseOnDemand]: 156/160 looper letters, 0 selfloop transitions, 0 changer transitions 185/185 dead transitions. [2025-04-30 10:26:54,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 185 transitions, 738 flow [2025-04-30 10:26:54,704 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:26:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-30 10:26:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2025-04-30 10:26:54,705 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9708333333333333 [2025-04-30 10:26:54,705 INFO L175 Difference]: Start difference. First operand has 234 places, 311 transitions, 1804 flow. Second operand 3 states and 466 transitions. [2025-04-30 10:26:54,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 185 transitions, 738 flow [2025-04-30 10:26:54,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 185 transitions, 600 flow, removed 30 selfloop flow, removed 29 redundant places. [2025-04-30 10:26:54,709 INFO L231 Difference]: Finished difference. Result has 203 places, 0 transitions, 0 flow [2025-04-30 10:26:54,709 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=203, PETRI_TRANSITIONS=0} [2025-04-30 10:26:54,710 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 41 predicate places. [2025-04-30 10:26:54,710 INFO L485 AbstractCegarLoop]: Abstraction has has 203 places, 0 transitions, 0 flow [2025-04-30 10:26:54,710 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2025-04-30 10:26:54,713 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-04-30 10:26:54,713 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-04-30 10:26:54,713 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-04-30 10:26:54,713 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-04-30 10:26:54,713 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-04-30 10:26:54,714 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-04-30 10:26:54,714 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-04-30 10:26:54,714 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-04-30 10:26:54,714 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-04-30 10:26:54,714 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-30 10:26:54,714 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2025-04-30 10:26:54,717 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-30 10:26:54,718 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:26:54,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:26:54 BasicIcfg [2025-04-30 10:26:54,723 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:26:54,723 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:26:54,723 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:26:54,723 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:26:54,724 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:26:46" (3/4) ... [2025-04-30 10:26:54,725 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:26:54,727 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-30 10:26:54,731 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-30 10:26:54,731 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-30 10:26:54,731 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-30 10:26:54,783 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:26:54,784 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:26:54,784 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:26:54,785 INFO L158 Benchmark]: Toolchain (without parser) took 8947.56ms. Allocated memory was 167.8MB in the beginning and 302.0MB in the end (delta: 134.2MB). Free memory was 132.9MB in the beginning and 227.6MB in the end (delta: -94.7MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2025-04-30 10:26:54,785 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:54,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.17ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 108.3MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:26:54,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.17ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 105.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:54,785 INFO L158 Benchmark]: Boogie Preprocessor took 28.90ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:26:54,786 INFO L158 Benchmark]: RCFGBuilder took 393.65ms. Allocated memory is still 167.8MB. Free memory was 103.6MB in the beginning and 81.9MB in the end (delta: 21.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:26:54,786 INFO L158 Benchmark]: TraceAbstraction took 8001.19ms. Allocated memory was 167.8MB in the beginning and 302.0MB in the end (delta: 134.2MB). Free memory was 81.5MB in the beginning and 234.4MB in the end (delta: -152.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:26:54,786 INFO L158 Benchmark]: Witness Printer took 60.91ms. Allocated memory is still 302.0MB. Free memory was 234.4MB in the beginning and 227.6MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:26:54,787 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 125.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.17ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 108.3MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.17ms. Allocated memory is still 167.8MB. Free memory was 108.3MB in the beginning and 105.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.90ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 393.65ms. Allocated memory is still 167.8MB. Free memory was 103.6MB in the beginning and 81.9MB in the end (delta: 21.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8001.19ms. Allocated memory was 167.8MB in the beginning and 302.0MB in the end (delta: 134.2MB). Free memory was 81.5MB in the beginning and 234.4MB in the end (delta: -152.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.91ms. Allocated memory is still 302.0MB. Free memory was 234.4MB in the beginning and 227.6MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 188 locations, 187 edges, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.9s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1127 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 731 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 369 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2532 IncrementalHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 369 mSolverCounterUnsat, 16 mSDtfsCounter, 2532 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 733 GetRequests, 621 SyntacticMatches, 11 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1804occurred in iteration=9, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1566 NumberOfCodeBlocks, 1466 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1869 ConstructedInterpolants, 0 QuantifiedInterpolants, 2680 SizeOfPredicates, 22 NumberOfNonLiveVariables, 721 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 1073/1466 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:26:54,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE