./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_04-munge_nr.c --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/04-mutex_04-munge_nr.c -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 af050e63dcf9dd830df9a18d2bd30b321190833ccd1f9fb768775285774c2bf5 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:07:48,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:07:48,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:07:48,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:07:48,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:07:48,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:07:48,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:07:48,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:07:48,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:07:48,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:07:48,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:07:48,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:07:48,946 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:07:48,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:07:48,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:07:48,946 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:07:48,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:07:48,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:07:48,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:07:48,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:07:48,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:07:48,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:07:48,947 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:07:48,947 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:07:48,947 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:07:48,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:07:48,947 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:07:48,947 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:07:48,947 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:07:48,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:07:48,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:07:48,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:07:48,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:07:48,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:07:48,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:07:48,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:07:48,949 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 -> af050e63dcf9dd830df9a18d2bd30b321190833ccd1f9fb768775285774c2bf5 [2025-04-29 11:07:49,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:07:49,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:07:49,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:07:49,187 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:07:49,187 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:07:49,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_04-munge_nr.c [2025-04-29 11:07:50,434 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca98a6835/34ccd1f5dfbb4fae8ad0cc7072318ded/FLAG81e1f1929 [2025-04-29 11:07:50,612 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:07:50,612 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_04-munge_nr.c [2025-04-29 11:07:50,613 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:07:50,613 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:07:50,618 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca98a6835/34ccd1f5dfbb4fae8ad0cc7072318ded/FLAG81e1f1929 [2025-04-29 11:07:51,485 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca98a6835/34ccd1f5dfbb4fae8ad0cc7072318ded [2025-04-29 11:07:51,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:07:51,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:07:51,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:07:51,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:07:51,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:07:51,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1acf255c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51, skipping insertion in model container [2025-04-29 11:07:51,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,507 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:07:51,627 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:07:51,632 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:07:51,649 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:07:51,659 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:07:51,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51 WrapperNode [2025-04-29 11:07:51,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:07:51,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:07:51,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:07:51,661 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:07:51,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,688 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2025-04-29 11:07:51,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:07:51,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:07:51,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:07:51,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:07:51,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,699 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:07:51,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:07:51,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:07:51,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:07:51,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (1/1) ... [2025-04-29 11:07:51,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:07:51,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:07:51,733 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) [2025-04-29 11:07:51,735 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 [2025-04-29 11:07:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-29 11:07:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-29 11:07:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-29 11:07:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:07:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:07:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-29 11:07:51,752 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-29 11:07:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-29 11:07:51,753 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:07:51,811 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:07:51,813 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:07:51,928 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:07:51,928 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:07:51,952 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:07:51,953 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:07:51,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:07:51 BoogieIcfgContainer [2025-04-29 11:07:51,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:07:51,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:07:51,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:07:51,959 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:07:51,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:07:51" (1/3) ... [2025-04-29 11:07:51,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36255031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:07:51, skipping insertion in model container [2025-04-29 11:07:51,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:07:51" (2/3) ... [2025-04-29 11:07:51,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36255031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:07:51, skipping insertion in model container [2025-04-29 11:07:51,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:07:51" (3/3) ... [2025-04-29 11:07:51,962 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.c [2025-04-29 11:07:51,971 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:07:51,973 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_04-munge_nr.c that has 2 procedures, 61 locations, 59 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-29 11:07:51,973 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:07:52,009 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-29 11:07:52,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 127 flow [2025-04-29 11:07:52,060 INFO L116 PetriNetUnfolderBase]: 0/59 cut-off events. [2025-04-29 11:07:52,061 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:07:52,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 59 events. 0/59 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-04-29 11:07:52,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 60 transitions, 127 flow [2025-04-29 11:07:52,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 54 transitions, 111 flow [2025-04-29 11:07:52,070 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:07:52,079 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;@6b6ec4fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:07:52,079 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-29 11:07:52,087 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:07:52,087 INFO L116 PetriNetUnfolderBase]: 0/27 cut-off events. [2025-04-29 11:07:52,087 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:07:52,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:52,087 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] [2025-04-29 11:07:52,088 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:52,092 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash 109821085, now seen corresponding path program 1 times [2025-04-29 11:07:52,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:52,099 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421805937] [2025-04-29 11:07:52,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:52,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:52,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-04-29 11:07:52,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-04-29 11:07:52,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:52,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:52,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:52,220 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421805937] [2025-04-29 11:07:52,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421805937] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:52,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:52,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:07:52,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117618608] [2025-04-29 11:07:52,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:52,226 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:07:52,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:52,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:07:52,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:07:52,274 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 60 [2025-04-29 11:07:52,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2025-04-29 11:07:52,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:52,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 60 [2025-04-29 11:07:52,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:52,333 INFO L116 PetriNetUnfolderBase]: 31/191 cut-off events. [2025-04-29 11:07:52,336 INFO L117 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-04-29 11:07:52,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 191 events. 31/191 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 812 event pairs, 13 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 256. Up to 44 conditions per place. [2025-04-29 11:07:52,340 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 17 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2025-04-29 11:07:52,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 64 transitions, 177 flow [2025-04-29 11:07:52,342 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:07:52,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:07:52,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2025-04-29 11:07:52,354 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.9055555555555556 [2025-04-29 11:07:52,355 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 111 flow. Second operand 3 states and 163 transitions. [2025-04-29 11:07:52,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 64 transitions, 177 flow [2025-04-29 11:07:52,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 64 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-29 11:07:52,364 INFO L231 Difference]: Finished difference. Result has 61 places, 60 transitions, 162 flow [2025-04-29 11:07:52,366 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=61, PETRI_TRANSITIONS=60} [2025-04-29 11:07:52,368 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2025-04-29 11:07:52,368 INFO L485 AbstractCegarLoop]: Abstraction has has 61 places, 60 transitions, 162 flow [2025-04-29 11:07:52,368 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2025-04-29 11:07:52,368 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:52,369 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] [2025-04-29 11:07:52,369 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:07:52,369 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:52,369 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:52,370 INFO L85 PathProgramCache]: Analyzing trace with hash 725962336, now seen corresponding path program 1 times [2025-04-29 11:07:52,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:52,370 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573070291] [2025-04-29 11:07:52,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:52,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:52,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-29 11:07:52,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-29 11:07:52,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:52,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:52,443 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573070291] [2025-04-29 11:07:52,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573070291] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:52,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:52,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:07:52,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845764749] [2025-04-29 11:07:52,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:52,444 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:07:52,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:52,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:07:52,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:07:52,477 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 60 [2025-04-29 11:07:52,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2025-04-29 11:07:52,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:52,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 60 [2025-04-29 11:07:52,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:52,569 INFO L116 PetriNetUnfolderBase]: 56/259 cut-off events. [2025-04-29 11:07:52,569 INFO L117 PetriNetUnfolderBase]: For 105/113 co-relation queries the response was YES. [2025-04-29 11:07:52,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 259 events. 56/259 cut-off events. For 105/113 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1290 event pairs, 30 based on Foata normal form. 4/247 useless extension candidates. Maximal degree in co-relation 476. Up to 108 conditions per place. [2025-04-29 11:07:52,571 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 18 selfloop transitions, 7 changer transitions 1/67 dead transitions. [2025-04-29 11:07:52,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 67 transitions, 238 flow [2025-04-29 11:07:52,572 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:07:52,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:07:52,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2025-04-29 11:07:52,573 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8555555555555555 [2025-04-29 11:07:52,573 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 162 flow. Second operand 3 states and 154 transitions. [2025-04-29 11:07:52,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 67 transitions, 238 flow [2025-04-29 11:07:52,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 67 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:07:52,576 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 206 flow [2025-04-29 11:07:52,576 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2025-04-29 11:07:52,577 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2025-04-29 11:07:52,577 INFO L485 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 206 flow [2025-04-29 11:07:52,577 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2025-04-29 11:07:52,577 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:52,577 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] [2025-04-29 11:07:52,578 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:07:52,578 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:52,579 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:52,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1191163579, now seen corresponding path program 1 times [2025-04-29 11:07:52,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:52,579 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303099402] [2025-04-29 11:07:52,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:52,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:52,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-29 11:07:52,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-29 11:07:52,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:52,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:52,617 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303099402] [2025-04-29 11:07:52,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303099402] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:52,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:52,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:07:52,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631927230] [2025-04-29 11:07:52,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:52,619 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:07:52,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:52,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:07:52,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:07:52,646 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 60 [2025-04-29 11:07:52,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2025-04-29 11:07:52,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:52,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 60 [2025-04-29 11:07:52,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:52,705 INFO L116 PetriNetUnfolderBase]: 69/298 cut-off events. [2025-04-29 11:07:52,705 INFO L117 PetriNetUnfolderBase]: For 198/205 co-relation queries the response was YES. [2025-04-29 11:07:52,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 298 events. 69/298 cut-off events. For 198/205 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1517 event pairs, 30 based on Foata normal form. 2/285 useless extension candidates. Maximal degree in co-relation 627. Up to 125 conditions per place. [2025-04-29 11:07:52,707 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 17 selfloop transitions, 7 changer transitions 7/72 dead transitions. [2025-04-29 11:07:52,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 292 flow [2025-04-29 11:07:52,708 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:07:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:07:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2025-04-29 11:07:52,708 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.8555555555555555 [2025-04-29 11:07:52,709 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 206 flow. Second operand 3 states and 154 transitions. [2025-04-29 11:07:52,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 292 flow [2025-04-29 11:07:52,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 72 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:07:52,712 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 224 flow [2025-04-29 11:07:52,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2025-04-29 11:07:52,712 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 7 predicate places. [2025-04-29 11:07:52,713 INFO L485 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 224 flow [2025-04-29 11:07:52,713 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2025-04-29 11:07:52,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:52,713 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] [2025-04-29 11:07:52,713 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:07:52,713 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:52,713 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:52,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1327191902, now seen corresponding path program 1 times [2025-04-29 11:07:52,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:52,715 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182450415] [2025-04-29 11:07:52,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:52,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-29 11:07:52,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:52,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:52,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:52,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:52,921 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182450415] [2025-04-29 11:07:52,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182450415] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:52,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:52,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:52,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667965805] [2025-04-29 11:07:52,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:52,924 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:52,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:52,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:52,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:52,950 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:52,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:52,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:52,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:52,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:53,178 INFO L116 PetriNetUnfolderBase]: 134/678 cut-off events. [2025-04-29 11:07:53,178 INFO L117 PetriNetUnfolderBase]: For 329/331 co-relation queries the response was YES. [2025-04-29 11:07:53,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1420 conditions, 678 events. 134/678 cut-off events. For 329/331 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4673 event pairs, 24 based on Foata normal form. 1/660 useless extension candidates. Maximal degree in co-relation 1397. Up to 110 conditions per place. [2025-04-29 11:07:53,181 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 24 selfloop transitions, 19 changer transitions 21/112 dead transitions. [2025-04-29 11:07:53,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 112 transitions, 448 flow [2025-04-29 11:07:53,182 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:07:53,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:07:53,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 495 transitions. [2025-04-29 11:07:53,183 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.825 [2025-04-29 11:07:53,183 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 224 flow. Second operand 10 states and 495 transitions. [2025-04-29 11:07:53,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 112 transitions, 448 flow [2025-04-29 11:07:53,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 112 transitions, 434 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:07:53,189 INFO L231 Difference]: Finished difference. Result has 77 places, 78 transitions, 316 flow [2025-04-29 11:07:53,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=316, PETRI_PLACES=77, PETRI_TRANSITIONS=78} [2025-04-29 11:07:53,190 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 19 predicate places. [2025-04-29 11:07:53,191 INFO L485 AbstractCegarLoop]: Abstraction has has 77 places, 78 transitions, 316 flow [2025-04-29 11:07:53,191 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:53,191 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:53,191 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] [2025-04-29 11:07:53,191 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-29 11:07:53,191 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:53,192 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:53,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1031934703, now seen corresponding path program 1 times [2025-04-29 11:07:53,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:53,192 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859496042] [2025-04-29 11:07:53,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:53,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:53,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-29 11:07:53,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:53,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:53,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:53,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:53,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:53,305 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859496042] [2025-04-29 11:07:53,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859496042] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:53,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:53,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:53,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344300991] [2025-04-29 11:07:53,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:53,306 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:53,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:53,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:53,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:53,333 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:53,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 78 transitions, 316 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:53,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:53,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:53,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:53,504 INFO L116 PetriNetUnfolderBase]: 81/569 cut-off events. [2025-04-29 11:07:53,504 INFO L117 PetriNetUnfolderBase]: For 363/370 co-relation queries the response was YES. [2025-04-29 11:07:53,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 569 events. 81/569 cut-off events. For 363/370 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3940 event pairs, 13 based on Foata normal form. 5/562 useless extension candidates. Maximal degree in co-relation 1319. Up to 86 conditions per place. [2025-04-29 11:07:53,506 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 18 selfloop transitions, 26 changer transitions 12/104 dead transitions. [2025-04-29 11:07:53,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 104 transitions, 520 flow [2025-04-29 11:07:53,507 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-29 11:07:53,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-04-29 11:07:53,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 517 transitions. [2025-04-29 11:07:53,508 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7833333333333333 [2025-04-29 11:07:53,508 INFO L175 Difference]: Start difference. First operand has 77 places, 78 transitions, 316 flow. Second operand 11 states and 517 transitions. [2025-04-29 11:07:53,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 104 transitions, 520 flow [2025-04-29 11:07:53,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 104 transitions, 516 flow, removed 2 selfloop flow, removed 0 redundant places. [2025-04-29 11:07:53,511 INFO L231 Difference]: Finished difference. Result has 89 places, 83 transitions, 396 flow [2025-04-29 11:07:53,511 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=396, PETRI_PLACES=89, PETRI_TRANSITIONS=83} [2025-04-29 11:07:53,512 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 31 predicate places. [2025-04-29 11:07:53,512 INFO L485 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 396 flow [2025-04-29 11:07:53,512 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:53,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:53,512 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] [2025-04-29 11:07:53,512 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-29 11:07:53,512 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:53,516 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1624222840, now seen corresponding path program 2 times [2025-04-29 11:07:53,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:53,517 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97842047] [2025-04-29 11:07:53,517 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:07:53,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:53,523 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-04-29 11:07:53,526 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:53,526 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:07:53,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:53,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:53,630 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97842047] [2025-04-29 11:07:53,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97842047] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:53,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:53,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:53,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814675608] [2025-04-29 11:07:53,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:53,631 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:53,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:53,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:53,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:53,653 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:53,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 83 transitions, 396 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:53,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:53,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:53,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:53,818 INFO L116 PetriNetUnfolderBase]: 66/490 cut-off events. [2025-04-29 11:07:53,818 INFO L117 PetriNetUnfolderBase]: For 472/480 co-relation queries the response was YES. [2025-04-29 11:07:53,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 490 events. 66/490 cut-off events. For 472/480 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3212 event pairs, 9 based on Foata normal form. 9/485 useless extension candidates. Maximal degree in co-relation 1211. Up to 76 conditions per place. [2025-04-29 11:07:53,821 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 24 selfloop transitions, 19 changer transitions 8/99 dead transitions. [2025-04-29 11:07:53,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 99 transitions, 579 flow [2025-04-29 11:07:53,822 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:07:53,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:07:53,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 476 transitions. [2025-04-29 11:07:53,824 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7933333333333333 [2025-04-29 11:07:53,824 INFO L175 Difference]: Start difference. First operand has 89 places, 83 transitions, 396 flow. Second operand 10 states and 476 transitions. [2025-04-29 11:07:53,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 99 transitions, 579 flow [2025-04-29 11:07:53,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 99 transitions, 555 flow, removed 12 selfloop flow, removed 1 redundant places. [2025-04-29 11:07:53,830 INFO L231 Difference]: Finished difference. Result has 100 places, 84 transitions, 457 flow [2025-04-29 11:07:53,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=457, PETRI_PLACES=100, PETRI_TRANSITIONS=84} [2025-04-29 11:07:53,830 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 42 predicate places. [2025-04-29 11:07:53,831 INFO L485 AbstractCegarLoop]: Abstraction has has 100 places, 84 transitions, 457 flow [2025-04-29 11:07:53,831 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:53,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:53,831 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] [2025-04-29 11:07:53,831 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-29 11:07:53,832 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:53,832 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:53,832 INFO L85 PathProgramCache]: Analyzing trace with hash -729499594, now seen corresponding path program 3 times [2025-04-29 11:07:53,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:53,832 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301829535] [2025-04-29 11:07:53,832 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-29 11:07:53,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:53,839 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 1 equivalence classes. [2025-04-29 11:07:53,841 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:53,841 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-29 11:07:53,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:53,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:53,963 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301829535] [2025-04-29 11:07:53,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301829535] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:53,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:53,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:53,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563670111] [2025-04-29 11:07:53,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:53,963 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:53,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:53,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:53,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:53,992 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:53,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 84 transitions, 457 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:53,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:53,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:53,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:54,177 INFO L116 PetriNetUnfolderBase]: 93/637 cut-off events. [2025-04-29 11:07:54,178 INFO L117 PetriNetUnfolderBase]: For 974/988 co-relation queries the response was YES. [2025-04-29 11:07:54,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 637 events. 93/637 cut-off events. For 974/988 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4684 event pairs, 16 based on Foata normal form. 7/624 useless extension candidates. Maximal degree in co-relation 1713. Up to 102 conditions per place. [2025-04-29 11:07:54,182 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 24 selfloop transitions, 29 changer transitions 3/104 dead transitions. [2025-04-29 11:07:54,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 104 transitions, 699 flow [2025-04-29 11:07:54,183 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-29 11:07:54,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-04-29 11:07:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 515 transitions. [2025-04-29 11:07:54,184 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7803030303030303 [2025-04-29 11:07:54,184 INFO L175 Difference]: Start difference. First operand has 100 places, 84 transitions, 457 flow. Second operand 11 states and 515 transitions. [2025-04-29 11:07:54,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 104 transitions, 699 flow [2025-04-29 11:07:54,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 104 transitions, 652 flow, removed 9 selfloop flow, removed 8 redundant places. [2025-04-29 11:07:54,189 INFO L231 Difference]: Finished difference. Result has 104 places, 93 transitions, 587 flow [2025-04-29 11:07:54,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=587, PETRI_PLACES=104, PETRI_TRANSITIONS=93} [2025-04-29 11:07:54,191 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 46 predicate places. [2025-04-29 11:07:54,191 INFO L485 AbstractCegarLoop]: Abstraction has has 104 places, 93 transitions, 587 flow [2025-04-29 11:07:54,192 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:54,192 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:54,192 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] [2025-04-29 11:07:54,192 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-29 11:07:54,192 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:54,193 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:54,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1734353276, now seen corresponding path program 4 times [2025-04-29 11:07:54,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:54,193 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983991994] [2025-04-29 11:07:54,193 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-29 11:07:54,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:54,200 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 33 statements into 2 equivalence classes. [2025-04-29 11:07:54,202 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:54,203 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-29 11:07:54,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:54,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:54,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:54,305 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983991994] [2025-04-29 11:07:54,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983991994] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:54,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:54,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:54,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033125976] [2025-04-29 11:07:54,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:54,306 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:54,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:54,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:54,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:54,336 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:54,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 93 transitions, 587 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:54,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:54,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:54,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:54,537 INFO L116 PetriNetUnfolderBase]: 92/642 cut-off events. [2025-04-29 11:07:54,537 INFO L117 PetriNetUnfolderBase]: For 1314/1331 co-relation queries the response was YES. [2025-04-29 11:07:54,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1850 conditions, 642 events. 92/642 cut-off events. For 1314/1331 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4716 event pairs, 13 based on Foata normal form. 8/632 useless extension candidates. Maximal degree in co-relation 1813. Up to 104 conditions per place. [2025-04-29 11:07:54,543 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 27 selfloop transitions, 27 changer transitions 3/105 dead transitions. [2025-04-29 11:07:54,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 105 transitions, 761 flow [2025-04-29 11:07:54,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-29 11:07:54,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-04-29 11:07:54,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 524 transitions. [2025-04-29 11:07:54,545 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.793939393939394 [2025-04-29 11:07:54,545 INFO L175 Difference]: Start difference. First operand has 104 places, 93 transitions, 587 flow. Second operand 11 states and 524 transitions. [2025-04-29 11:07:54,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 105 transitions, 761 flow [2025-04-29 11:07:54,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 105 transitions, 734 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-04-29 11:07:54,550 INFO L231 Difference]: Finished difference. Result has 112 places, 94 transitions, 641 flow [2025-04-29 11:07:54,550 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=641, PETRI_PLACES=112, PETRI_TRANSITIONS=94} [2025-04-29 11:07:54,551 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 54 predicate places. [2025-04-29 11:07:54,551 INFO L485 AbstractCegarLoop]: Abstraction has has 112 places, 94 transitions, 641 flow [2025-04-29 11:07:54,551 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:54,551 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:54,551 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] [2025-04-29 11:07:54,551 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-29 11:07:54,551 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:54,552 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:54,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1424800596, now seen corresponding path program 5 times [2025-04-29 11:07:54,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:54,552 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179985234] [2025-04-29 11:07:54,552 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-29 11:07:54,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:54,560 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-04-29 11:07:54,562 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:54,562 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:07:54,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:54,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:54,653 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179985234] [2025-04-29 11:07:54,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179985234] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:54,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:54,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:54,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870872244] [2025-04-29 11:07:54,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:54,653 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:54,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:54,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:54,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:54,671 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:54,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 94 transitions, 641 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:54,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:54,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:54,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:54,839 INFO L116 PetriNetUnfolderBase]: 63/494 cut-off events. [2025-04-29 11:07:54,839 INFO L117 PetriNetUnfolderBase]: For 1272/1287 co-relation queries the response was YES. [2025-04-29 11:07:54,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1462 conditions, 494 events. 63/494 cut-off events. For 1272/1287 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3259 event pairs, 9 based on Foata normal form. 7/487 useless extension candidates. Maximal degree in co-relation 1423. Up to 78 conditions per place. [2025-04-29 11:07:54,842 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 23 selfloop transitions, 17 changer transitions 8/96 dead transitions. [2025-04-29 11:07:54,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 96 transitions, 701 flow [2025-04-29 11:07:54,842 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:07:54,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:07:54,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 474 transitions. [2025-04-29 11:07:54,844 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.79 [2025-04-29 11:07:54,844 INFO L175 Difference]: Start difference. First operand has 112 places, 94 transitions, 641 flow. Second operand 10 states and 474 transitions. [2025-04-29 11:07:54,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 96 transitions, 701 flow [2025-04-29 11:07:54,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 96 transitions, 585 flow, removed 8 selfloop flow, removed 16 redundant places. [2025-04-29 11:07:54,849 INFO L231 Difference]: Finished difference. Result has 105 places, 84 transitions, 458 flow [2025-04-29 11:07:54,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=458, PETRI_PLACES=105, PETRI_TRANSITIONS=84} [2025-04-29 11:07:54,850 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 47 predicate places. [2025-04-29 11:07:54,850 INFO L485 AbstractCegarLoop]: Abstraction has has 105 places, 84 transitions, 458 flow [2025-04-29 11:07:54,850 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:54,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:54,850 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] [2025-04-29 11:07:54,851 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-04-29 11:07:54,851 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:54,851 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:54,851 INFO L85 PathProgramCache]: Analyzing trace with hash 738367587, now seen corresponding path program 1 times [2025-04-29 11:07:54,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:54,851 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723631556] [2025-04-29 11:07:54,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:07:54,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:54,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-04-29 11:07:54,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:54,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:07:54,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:54,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:54,936 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723631556] [2025-04-29 11:07:54,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723631556] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:54,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:54,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:54,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879353327] [2025-04-29 11:07:54,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:54,937 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:54,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:54,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:54,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:54,962 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:54,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 84 transitions, 458 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:54,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:54,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:54,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:55,103 INFO L116 PetriNetUnfolderBase]: 29/292 cut-off events. [2025-04-29 11:07:55,103 INFO L117 PetriNetUnfolderBase]: For 403/407 co-relation queries the response was YES. [2025-04-29 11:07:55,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 292 events. 29/292 cut-off events. For 403/407 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1525 event pairs, 5 based on Foata normal form. 4/289 useless extension candidates. Maximal degree in co-relation 748. Up to 44 conditions per place. [2025-04-29 11:07:55,104 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 15 selfloop transitions, 12 changer transitions 8/83 dead transitions. [2025-04-29 11:07:55,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 83 transitions, 480 flow [2025-04-29 11:07:55,105 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-29 11:07:55,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-04-29 11:07:55,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 464 transitions. [2025-04-29 11:07:55,106 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7733333333333333 [2025-04-29 11:07:55,106 INFO L175 Difference]: Start difference. First operand has 105 places, 84 transitions, 458 flow. Second operand 10 states and 464 transitions. [2025-04-29 11:07:55,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 83 transitions, 480 flow [2025-04-29 11:07:55,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 83 transitions, 424 flow, removed 5 selfloop flow, removed 12 redundant places. [2025-04-29 11:07:55,109 INFO L231 Difference]: Finished difference. Result has 95 places, 70 transitions, 312 flow [2025-04-29 11:07:55,110 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=312, PETRI_PLACES=95, PETRI_TRANSITIONS=70} [2025-04-29 11:07:55,110 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 37 predicate places. [2025-04-29 11:07:55,110 INFO L485 AbstractCegarLoop]: Abstraction has has 95 places, 70 transitions, 312 flow [2025-04-29 11:07:55,110 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:55,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:55,111 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] [2025-04-29 11:07:55,111 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-29 11:07:55,111 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:55,111 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:55,111 INFO L85 PathProgramCache]: Analyzing trace with hash 892162075, now seen corresponding path program 2 times [2025-04-29 11:07:55,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:55,111 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536030467] [2025-04-29 11:07:55,112 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-29 11:07:55,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:55,116 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-04-29 11:07:55,117 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:55,118 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-29 11:07:55,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:55,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:55,209 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536030467] [2025-04-29 11:07:55,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536030467] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:55,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:55,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:55,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020197657] [2025-04-29 11:07:55,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:55,209 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:55,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:55,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:55,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:55,235 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:55,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 70 transitions, 312 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:55,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:55,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:55,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:55,371 INFO L116 PetriNetUnfolderBase]: 29/287 cut-off events. [2025-04-29 11:07:55,372 INFO L117 PetriNetUnfolderBase]: For 310/318 co-relation queries the response was YES. [2025-04-29 11:07:55,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 287 events. 29/287 cut-off events. For 310/318 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1516 event pairs, 7 based on Foata normal form. 3/284 useless extension candidates. Maximal degree in co-relation 724. Up to 44 conditions per place. [2025-04-29 11:07:55,373 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 14 selfloop transitions, 9 changer transitions 11/82 dead transitions. [2025-04-29 11:07:55,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 82 transitions, 449 flow [2025-04-29 11:07:55,373 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-29 11:07:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-04-29 11:07:55,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 420 transitions. [2025-04-29 11:07:55,374 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2025-04-29 11:07:55,374 INFO L175 Difference]: Start difference. First operand has 95 places, 70 transitions, 312 flow. Second operand 9 states and 420 transitions. [2025-04-29 11:07:55,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 82 transitions, 449 flow [2025-04-29 11:07:55,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 82 transitions, 366 flow, removed 2 selfloop flow, removed 13 redundant places. [2025-04-29 11:07:55,377 INFO L231 Difference]: Finished difference. Result has 86 places, 68 transitions, 283 flow [2025-04-29 11:07:55,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=283, PETRI_PLACES=86, PETRI_TRANSITIONS=68} [2025-04-29 11:07:55,378 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 28 predicate places. [2025-04-29 11:07:55,378 INFO L485 AbstractCegarLoop]: Abstraction has has 86 places, 68 transitions, 283 flow [2025-04-29 11:07:55,378 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:55,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:55,378 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] [2025-04-29 11:07:55,378 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-29 11:07:55,378 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:55,379 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:55,379 INFO L85 PathProgramCache]: Analyzing trace with hash -626537411, now seen corresponding path program 3 times [2025-04-29 11:07:55,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:55,379 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853320038] [2025-04-29 11:07:55,379 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-29 11:07:55,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:55,382 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 1 equivalence classes. [2025-04-29 11:07:55,384 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:55,384 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-29 11:07:55,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:55,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:55,445 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853320038] [2025-04-29 11:07:55,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853320038] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:55,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:55,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:55,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971402096] [2025-04-29 11:07:55,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:55,446 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:55,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:55,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:55,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:55,461 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:55,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 68 transitions, 283 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:55,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:55,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:55,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:55,569 INFO L116 PetriNetUnfolderBase]: 25/264 cut-off events. [2025-04-29 11:07:55,570 INFO L117 PetriNetUnfolderBase]: For 214/219 co-relation queries the response was YES. [2025-04-29 11:07:55,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 264 events. 25/264 cut-off events. For 214/219 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1321 event pairs, 5 based on Foata normal form. 4/261 useless extension candidates. Maximal degree in co-relation 620. Up to 40 conditions per place. [2025-04-29 11:07:55,571 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 10 selfloop transitions, 11 changer transitions 6/75 dead transitions. [2025-04-29 11:07:55,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 75 transitions, 371 flow [2025-04-29 11:07:55,571 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-29 11:07:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-04-29 11:07:55,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 371 transitions. [2025-04-29 11:07:55,572 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7729166666666667 [2025-04-29 11:07:55,572 INFO L175 Difference]: Start difference. First operand has 86 places, 68 transitions, 283 flow. Second operand 8 states and 371 transitions. [2025-04-29 11:07:55,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 75 transitions, 371 flow [2025-04-29 11:07:55,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 75 transitions, 337 flow, removed 5 selfloop flow, removed 8 redundant places. [2025-04-29 11:07:55,574 INFO L231 Difference]: Finished difference. Result has 83 places, 68 transitions, 293 flow [2025-04-29 11:07:55,574 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=293, PETRI_PLACES=83, PETRI_TRANSITIONS=68} [2025-04-29 11:07:55,575 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 25 predicate places. [2025-04-29 11:07:55,575 INFO L485 AbstractCegarLoop]: Abstraction has has 83 places, 68 transitions, 293 flow [2025-04-29 11:07:55,575 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:55,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:07:55,575 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] [2025-04-29 11:07:55,575 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-04-29 11:07:55,576 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-29 11:07:55,576 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:07:55,576 INFO L85 PathProgramCache]: Analyzing trace with hash -2074246299, now seen corresponding path program 4 times [2025-04-29 11:07:55,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:07:55,576 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4102421] [2025-04-29 11:07:55,576 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-29 11:07:55,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:07:55,580 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 33 statements into 2 equivalence classes. [2025-04-29 11:07:55,581 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-04-29 11:07:55,581 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-29 11:07:55,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:07:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:07:55,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:07:55,639 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4102421] [2025-04-29 11:07:55,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4102421] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:07:55,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:07:55,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-29 11:07:55,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615634686] [2025-04-29 11:07:55,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:07:55,639 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-29 11:07:55,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:07:55,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-29 11:07:55,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-04-29 11:07:55,662 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 60 [2025-04-29 11:07:55,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 68 transitions, 293 flow. Second operand has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:55,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:07:55,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 60 [2025-04-29 11:07:55,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:07:55,745 INFO L116 PetriNetUnfolderBase]: 7/81 cut-off events. [2025-04-29 11:07:55,745 INFO L117 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2025-04-29 11:07:55,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 81 events. 7/81 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 197 event pairs, 0 based on Foata normal form. 2/83 useless extension candidates. Maximal degree in co-relation 188. Up to 12 conditions per place. [2025-04-29 11:07:55,745 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2025-04-29 11:07:55,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 48 transitions, 220 flow [2025-04-29 11:07:55,746 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-29 11:07:55,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-04-29 11:07:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 364 transitions. [2025-04-29 11:07:55,747 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7583333333333333 [2025-04-29 11:07:55,747 INFO L175 Difference]: Start difference. First operand has 83 places, 68 transitions, 293 flow. Second operand 8 states and 364 transitions. [2025-04-29 11:07:55,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 48 transitions, 220 flow [2025-04-29 11:07:55,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 48 transitions, 169 flow, removed 9 selfloop flow, removed 12 redundant places. [2025-04-29 11:07:55,748 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2025-04-29 11:07:55,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2025-04-29 11:07:55,748 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2025-04-29 11:07:55,748 INFO L485 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2025-04-29 11:07:55,748 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.42857142857143) internal successors, (311), 7 states have internal predecessors, (311), 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) [2025-04-29 11:07:55,750 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2025-04-29 11:07:55,750 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2025-04-29 11:07:55,750 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-29 11:07:55,750 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2025-04-29 11:07:55,751 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2025-04-29 11:07:55,751 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2025-04-29 11:07:55,751 INFO L790 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2025-04-29 11:07:55,751 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-04-29 11:07:55,751 INFO L422 BasicCegarLoop]: Path program histogram: [5, 4, 1, 1, 1, 1] [2025-04-29 11:07:55,754 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:07:55,754 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:07:55,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:07:55 BasicIcfg [2025-04-29 11:07:55,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:07:55,758 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:07:55,758 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:07:55,758 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:07:55,759 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:07:51" (3/4) ... [2025-04-29 11:07:55,761 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:07:55,763 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-04-29 11:07:55,765 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-04-29 11:07:55,765 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:07:55,765 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:07:55,817 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:07:55,817 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:07:55,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:07:55,818 INFO L158 Benchmark]: Toolchain (without parser) took 4329.71ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 111.4MB in the beginning and 148.5MB in the end (delta: -37.2MB). Peak memory consumption was 131.4MB. Max. memory is 16.1GB. [2025-04-29 11:07:55,818 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:07:55,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.07ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 98.7MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:07:55,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.69ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 96.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:07:55,818 INFO L158 Benchmark]: Boogie Preprocessor took 13.42ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 95.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:07:55,819 INFO L158 Benchmark]: RCFGBuilder took 249.92ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 83.7MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:07:55,819 INFO L158 Benchmark]: TraceAbstraction took 3802.82ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 82.7MB in the beginning and 153.6MB in the end (delta: -71.0MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB. [2025-04-29 11:07:55,819 INFO L158 Benchmark]: Witness Printer took 59.09ms. Allocated memory is still 310.4MB. Free memory was 153.6MB in the beginning and 148.5MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:07:55,820 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.07ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 98.7MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.69ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 96.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.42ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 95.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.92ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 83.7MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3802.82ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 82.7MB in the beginning and 153.6MB in the end (delta: -71.0MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB. * Witness Printer took 59.09ms. Allocated memory is still 310.4MB. Free memory was 153.6MB in the beginning and 148.5MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: 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, 84 locations, 83 edges, 7 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: 3.7s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 570 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 466 mSDsluCounter, 758 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 589 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1323 IncrementalHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 169 mSDtfsCounter, 1323 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=641occurred in iteration=8, InterpolantAutomatonStates: 107, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 1031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 11:07:55,830 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