./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8fc3dc66 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:26:25,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:26:25,320 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-17 14:26:25,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:26:25,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:26:25,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:26:25,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:26:25,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:26:25,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:26:25,349 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:26:25,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:26:25,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:26:25,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:26:25,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:26:25,351 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:26:25,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:26:25,351 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 14:26:25,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:26:25,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 14:26:25,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:26:25,351 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 14:26:25,351 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 14:26:25,351 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-17 14:26:25,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:26:25,352 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:26:25,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:26:25,352 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:26:25,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:26:25,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:26:25,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:26:25,353 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:26:25,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:26:25,353 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2025-03-17 14:26:25,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:26:25,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:26:25,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:26:25,577 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:26:25,577 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:26:25,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-03-17 14:26:26,740 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6676d0c97/5f156169a9ef488fbefa704d5dbf8570/FLAG5f9e7632a [2025-03-17 14:26:26,965 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:26:26,966 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-03-17 14:26:26,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6676d0c97/5f156169a9ef488fbefa704d5dbf8570/FLAG5f9e7632a [2025-03-17 14:26:27,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6676d0c97/5f156169a9ef488fbefa704d5dbf8570 [2025-03-17 14:26:27,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:26:27,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:26:27,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:26:27,315 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:26:27,318 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:26:27,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad69ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27, skipping insertion in model container [2025-03-17 14:26:27,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:26:27,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:26:27,444 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:26:27,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:26:27,466 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:26:27,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27 WrapperNode [2025-03-17 14:26:27,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:26:27,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:26:27,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:26:27,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:26:27,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,496 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2025-03-17 14:26:27,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:26:27,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:26:27,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:26:27,499 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:26:27,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,524 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 14:26:27,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,531 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:26:27,539 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:26:27,540 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:26:27,540 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:26:27,541 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (1/1) ... [2025-03-17 14:26:27,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:26:27,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:26:27,568 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) [2025-03-17 14:26:27,571 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 [2025-03-17 14:26:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 14:26:27,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 14:26:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 14:26:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 14:26:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 14:26:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-17 14:26:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-17 14:26:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 14:26:27,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:26:27,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:26:27,591 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 14:26:27,661 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:26:27,663 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:26:27,890 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 14:26:27,890 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:26:28,009 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:26:28,009 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:26:28,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:26:28 BoogieIcfgContainer [2025-03-17 14:26:28,010 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:26:28,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:26:28,013 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:26:28,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:26:28,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:26:27" (1/3) ... [2025-03-17 14:26:28,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264db71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:26:28, skipping insertion in model container [2025-03-17 14:26:28,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:26:27" (2/3) ... [2025-03-17 14:26:28,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264db71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:26:28, skipping insertion in model container [2025-03-17 14:26:28,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:26:28" (3/3) ... [2025-03-17 14:26:28,021 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2025-03-17 14:26:28,034 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:26:28,036 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-3.wvr.c that has 4 procedures, 48 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-17 14:26:28,037 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 14:26:28,072 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-17 14:26:28,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 49 transitions, 119 flow [2025-03-17 14:26:28,121 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2025-03-17 14:26:28,123 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 14:26:28,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2025-03-17 14:26:28,127 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 49 transitions, 119 flow [2025-03-17 14:26:28,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 45 transitions, 108 flow [2025-03-17 14:26:28,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:26:28,150 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@4ffbd3f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:26:28,150 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-17 14:26:28,163 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 14:26:28,163 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2025-03-17 14:26:28,164 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 14:26:28,164 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:26:28,164 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:26:28,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-17 14:26:28,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:26:28,171 INFO L85 PathProgramCache]: Analyzing trace with hash 723199695, now seen corresponding path program 1 times [2025-03-17 14:26:28,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:26:28,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081407707] [2025-03-17 14:26:28,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:26:28,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:26:28,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 14:26:28,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 14:26:28,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:26:28,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:26:28,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:26:28,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:26:28,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081407707] [2025-03-17 14:26:28,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081407707] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:26:28,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:26:28,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:26:28,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907666523] [2025-03-17 14:26:28,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:26:28,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:26:28,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:26:28,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:26:28,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:26:28,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-03-17 14:26:28,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2025-03-17 14:26:28,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:26:28,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-03-17 14:26:28,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:26:28,878 INFO L124 PetriNetUnfolderBase]: 1948/3041 cut-off events. [2025-03-17 14:26:28,879 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2025-03-17 14:26:28,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6116 conditions, 3041 events. 1948/3041 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 16178 event pairs, 858 based on Foata normal form. 2/2896 useless extension candidates. Maximal degree in co-relation 5673. Up to 1547 conditions per place. [2025-03-17 14:26:28,898 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 51 selfloop transitions, 5 changer transitions 1/65 dead transitions. [2025-03-17 14:26:28,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 65 transitions, 274 flow [2025-03-17 14:26:28,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:26:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:26:28,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2025-03-17 14:26:28,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6462585034013606 [2025-03-17 14:26:28,910 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 108 flow. Second operand 3 states and 95 transitions. [2025-03-17 14:26:28,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 65 transitions, 274 flow [2025-03-17 14:26:28,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 65 transitions, 254 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-17 14:26:28,917 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 117 flow [2025-03-17 14:26:28,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2025-03-17 14:26:28,923 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2025-03-17 14:26:28,923 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 117 flow [2025-03-17 14:26:28,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2025-03-17 14:26:28,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:26:28,923 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:26:28,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:26:28,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-17 14:26:28,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:26:28,925 INFO L85 PathProgramCache]: Analyzing trace with hash -327464004, now seen corresponding path program 1 times [2025-03-17 14:26:28,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:26:28,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043793205] [2025-03-17 14:26:28,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:26:28,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:26:28,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-17 14:26:28,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 14:26:28,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:26:28,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:26:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:26:29,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:26:29,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043793205] [2025-03-17 14:26:29,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043793205] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:26:29,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:26:29,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:26:29,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438015543] [2025-03-17 14:26:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:26:29,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:26:29,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:26:29,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:26:29,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:26:29,022 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 49 [2025-03-17 14:26:29,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2025-03-17 14:26:29,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:26:29,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 49 [2025-03-17 14:26:29,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:26:29,282 INFO L124 PetriNetUnfolderBase]: 2293/3505 cut-off events. [2025-03-17 14:26:29,284 INFO L125 PetriNetUnfolderBase]: For 223/223 co-relation queries the response was YES. [2025-03-17 14:26:29,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7425 conditions, 3505 events. 2293/3505 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 17863 event pairs, 1673 based on Foata normal form. 0/3450 useless extension candidates. Maximal degree in co-relation 4808. Up to 3012 conditions per place. [2025-03-17 14:26:29,296 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 54 selfloop transitions, 7 changer transitions 0/65 dead transitions. [2025-03-17 14:26:29,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 65 transitions, 291 flow [2025-03-17 14:26:29,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:26:29,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:26:29,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-03-17 14:26:29,298 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.564625850340136 [2025-03-17 14:26:29,298 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 117 flow. Second operand 3 states and 83 transitions. [2025-03-17 14:26:29,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 65 transitions, 291 flow [2025-03-17 14:26:29,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 14:26:29,301 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 156 flow [2025-03-17 14:26:29,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2025-03-17 14:26:29,301 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2025-03-17 14:26:29,302 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 156 flow [2025-03-17 14:26:29,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2025-03-17 14:26:29,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:26:29,302 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:26:29,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:26:29,302 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-17 14:26:29,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:26:29,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2005740338, now seen corresponding path program 1 times [2025-03-17 14:26:29,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:26:29,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311539471] [2025-03-17 14:26:29,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:26:29,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:26:29,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-17 14:26:29,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 14:26:29,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:26:29,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:26:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:26:29,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:26:29,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311539471] [2025-03-17 14:26:29,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311539471] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:26:29,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:26:29,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:26:29,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007141662] [2025-03-17 14:26:29,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:26:29,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:26:29,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:26:29,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:26:29,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:26:29,429 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-03-17 14:26:29,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2025-03-17 14:26:29,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:26:29,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-03-17 14:26:29,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:26:29,852 INFO L124 PetriNetUnfolderBase]: 3201/5222 cut-off events. [2025-03-17 14:26:29,852 INFO L125 PetriNetUnfolderBase]: For 1671/1671 co-relation queries the response was YES. [2025-03-17 14:26:29,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11904 conditions, 5222 events. 3201/5222 cut-off events. For 1671/1671 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 32175 event pairs, 981 based on Foata normal form. 72/5237 useless extension candidates. Maximal degree in co-relation 7969. Up to 1990 conditions per place. [2025-03-17 14:26:29,869 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 81 selfloop transitions, 15 changer transitions 9/115 dead transitions. [2025-03-17 14:26:29,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 115 transitions, 558 flow [2025-03-17 14:26:29,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:26:29,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 14:26:29,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2025-03-17 14:26:29,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.636734693877551 [2025-03-17 14:26:29,870 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 156 flow. Second operand 5 states and 156 transitions. [2025-03-17 14:26:29,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 115 transitions, 558 flow [2025-03-17 14:26:29,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 115 transitions, 532 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:26:29,876 INFO L231 Difference]: Finished difference. Result has 55 places, 60 transitions, 227 flow [2025-03-17 14:26:29,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=55, PETRI_TRANSITIONS=60} [2025-03-17 14:26:29,877 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2025-03-17 14:26:29,877 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 60 transitions, 227 flow [2025-03-17 14:26:29,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2025-03-17 14:26:29,877 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:26:29,878 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:26:29,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 14:26:29,878 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-17 14:26:29,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:26:29,878 INFO L85 PathProgramCache]: Analyzing trace with hash -816233172, now seen corresponding path program 2 times [2025-03-17 14:26:29,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:26:29,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514420284] [2025-03-17 14:26:29,879 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:26:29,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:26:29,886 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-03-17 14:26:29,898 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 14:26:29,898 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:26:29,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:26:30,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:26:30,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:26:30,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514420284] [2025-03-17 14:26:30,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514420284] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:26:30,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:26:30,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:26:30,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786625186] [2025-03-17 14:26:30,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:26:30,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:26:30,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:26:30,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:26:30,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:26:30,015 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-03-17 14:26:30,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 60 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2025-03-17 14:26:30,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:26:30,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-03-17 14:26:30,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:26:30,345 INFO L124 PetriNetUnfolderBase]: 2866/4823 cut-off events. [2025-03-17 14:26:30,346 INFO L125 PetriNetUnfolderBase]: For 2552/2554 co-relation queries the response was YES. [2025-03-17 14:26:30,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12452 conditions, 4823 events. 2866/4823 cut-off events. For 2552/2554 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 30282 event pairs, 837 based on Foata normal form. 74/4829 useless extension candidates. Maximal degree in co-relation 8543. Up to 1769 conditions per place. [2025-03-17 14:26:30,361 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 76 selfloop transitions, 17 changer transitions 13/116 dead transitions. [2025-03-17 14:26:30,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 116 transitions, 621 flow [2025-03-17 14:26:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:26:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 14:26:30,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2025-03-17 14:26:30,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-03-17 14:26:30,363 INFO L175 Difference]: Start difference. First operand has 55 places, 60 transitions, 227 flow. Second operand 5 states and 154 transitions. [2025-03-17 14:26:30,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 116 transitions, 621 flow [2025-03-17 14:26:30,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 116 transitions, 621 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 14:26:30,366 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 291 flow [2025-03-17 14:26:30,366 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=291, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2025-03-17 14:26:30,366 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2025-03-17 14:26:30,366 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 291 flow [2025-03-17 14:26:30,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2025-03-17 14:26:30,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:26:30,367 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:26:30,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 14:26:30,367 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-17 14:26:30,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:26:30,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1010169664, now seen corresponding path program 3 times [2025-03-17 14:26:30,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:26:30,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934251808] [2025-03-17 14:26:30,368 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:26:30,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:26:30,377 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 1 equivalence classes. [2025-03-17 14:26:30,385 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 14:26:30,385 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 14:26:30,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:26:30,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:26:30,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:26:30,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934251808] [2025-03-17 14:26:30,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934251808] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:26:30,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:26:30,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 14:26:30,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027238673] [2025-03-17 14:26:30,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:26:30,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:26:30,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:26:30,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:26:30,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:26:30,527 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-03-17 14:26:30,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2025-03-17 14:26:30,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:26:30,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-03-17 14:26:30,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:26:30,888 INFO L124 PetriNetUnfolderBase]: 1960/3369 cut-off events. [2025-03-17 14:26:30,890 INFO L125 PetriNetUnfolderBase]: For 3228/3228 co-relation queries the response was YES. [2025-03-17 14:26:30,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9560 conditions, 3369 events. 1960/3369 cut-off events. For 3228/3228 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 20023 event pairs, 502 based on Foata normal form. 36/3363 useless extension candidates. Maximal degree in co-relation 8261. Up to 1473 conditions per place. [2025-03-17 14:26:30,903 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 62 selfloop transitions, 24 changer transitions 32/128 dead transitions. [2025-03-17 14:26:30,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 128 transitions, 786 flow [2025-03-17 14:26:30,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:26:30,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 14:26:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2025-03-17 14:26:30,904 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5782312925170068 [2025-03-17 14:26:30,904 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 291 flow. Second operand 6 states and 170 transitions. [2025-03-17 14:26:30,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 128 transitions, 786 flow [2025-03-17 14:26:30,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 128 transitions, 745 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 14:26:30,911 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 342 flow [2025-03-17 14:26:30,911 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=342, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2025-03-17 14:26:30,911 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2025-03-17 14:26:30,911 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 342 flow [2025-03-17 14:26:30,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 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) [2025-03-17 14:26:30,912 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:26:30,912 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:26:30,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 14:26:30,912 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-17 14:26:30,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:26:30,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1290792522, now seen corresponding path program 4 times [2025-03-17 14:26:30,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:26:30,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001825620] [2025-03-17 14:26:30,913 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:26:30,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:26:30,920 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 40 statements into 2 equivalence classes. [2025-03-17 14:26:30,934 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 14:26:30,934 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:26:30,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:26:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:26:31,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:26:31,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001825620] [2025-03-17 14:26:31,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001825620] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:26:31,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:26:31,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 14:26:31,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539758593] [2025-03-17 14:26:31,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:26:31,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:26:31,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:26:31,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:26:31,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:26:31,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-03-17 14:26:31,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 342 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2025-03-17 14:26:31,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:26:31,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-03-17 14:26:31,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:26:31,407 INFO L124 PetriNetUnfolderBase]: 980/1724 cut-off events. [2025-03-17 14:26:31,407 INFO L125 PetriNetUnfolderBase]: For 1696/1696 co-relation queries the response was YES. [2025-03-17 14:26:31,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5128 conditions, 1724 events. 980/1724 cut-off events. For 1696/1696 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8914 event pairs, 319 based on Foata normal form. 32/1731 useless extension candidates. Maximal degree in co-relation 1957. Up to 634 conditions per place. [2025-03-17 14:26:31,413 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 57 selfloop transitions, 20 changer transitions 24/111 dead transitions. [2025-03-17 14:26:31,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 111 transitions, 710 flow [2025-03-17 14:26:31,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:26:31,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:26:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 195 transitions. [2025-03-17 14:26:31,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49744897959183676 [2025-03-17 14:26:31,415 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 342 flow. Second operand 8 states and 195 transitions. [2025-03-17 14:26:31,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 111 transitions, 710 flow [2025-03-17 14:26:31,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 111 transitions, 688 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-17 14:26:31,419 INFO L231 Difference]: Finished difference. Result has 72 places, 58 transitions, 331 flow [2025-03-17 14:26:31,419 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=331, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2025-03-17 14:26:31,419 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 19 predicate places. [2025-03-17 14:26:31,419 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 331 flow [2025-03-17 14:26:31,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2025-03-17 14:26:31,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:26:31,420 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:26:31,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 14:26:31,420 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-17 14:26:31,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:26:31,420 INFO L85 PathProgramCache]: Analyzing trace with hash -468835198, now seen corresponding path program 5 times [2025-03-17 14:26:31,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:26:31,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926343034] [2025-03-17 14:26:31,421 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:26:31,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:26:31,426 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-03-17 14:26:31,431 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 14:26:31,431 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:26:31,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:26:31,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:26:31,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:26:31,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926343034] [2025-03-17 14:26:31,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926343034] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:26:31,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:26:31,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 14:26:31,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553792348] [2025-03-17 14:26:31,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:26:31,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:26:31,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:26:31,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:26:31,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:26:31,523 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-03-17 14:26:31,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 331 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2025-03-17 14:26:31,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:26:31,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-03-17 14:26:31,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:26:31,734 INFO L124 PetriNetUnfolderBase]: 675/1213 cut-off events. [2025-03-17 14:26:31,735 INFO L125 PetriNetUnfolderBase]: For 1984/1984 co-relation queries the response was YES. [2025-03-17 14:26:31,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3688 conditions, 1213 events. 675/1213 cut-off events. For 1984/1984 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5761 event pairs, 228 based on Foata normal form. 16/1216 useless extension candidates. Maximal degree in co-relation 1897. Up to 404 conditions per place. [2025-03-17 14:26:31,739 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 50 selfloop transitions, 14 changer transitions 25/97 dead transitions. [2025-03-17 14:26:31,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 97 transitions, 652 flow [2025-03-17 14:26:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:26:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:26:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 184 transitions. [2025-03-17 14:26:31,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46938775510204084 [2025-03-17 14:26:31,740 INFO L175 Difference]: Start difference. First operand has 72 places, 58 transitions, 331 flow. Second operand 8 states and 184 transitions. [2025-03-17 14:26:31,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 97 transitions, 652 flow [2025-03-17 14:26:31,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 97 transitions, 594 flow, removed 11 selfloop flow, removed 6 redundant places. [2025-03-17 14:26:31,748 INFO L231 Difference]: Finished difference. Result has 71 places, 48 transitions, 252 flow [2025-03-17 14:26:31,748 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=252, PETRI_PLACES=71, PETRI_TRANSITIONS=48} [2025-03-17 14:26:31,749 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 18 predicate places. [2025-03-17 14:26:31,750 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 48 transitions, 252 flow [2025-03-17 14:26:31,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2025-03-17 14:26:31,750 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:26:31,751 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:26:31,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 14:26:31,751 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-17 14:26:31,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:26:31,751 INFO L85 PathProgramCache]: Analyzing trace with hash -186391676, now seen corresponding path program 2 times [2025-03-17 14:26:31,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:26:31,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427106402] [2025-03-17 14:26:31,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:26:31,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:26:31,758 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-03-17 14:26:31,763 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 14:26:31,764 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:26:31,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:26:31,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:26:31,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:26:31,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427106402] [2025-03-17 14:26:31,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427106402] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:26:31,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:26:31,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 14:26:31,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808730262] [2025-03-17 14:26:31,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:26:31,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:26:31,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:26:31,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:26:31,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:26:31,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-03-17 14:26:31,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 48 transitions, 252 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2025-03-17 14:26:31,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:26:31,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-03-17 14:26:31,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:26:31,992 INFO L124 PetriNetUnfolderBase]: 185/377 cut-off events. [2025-03-17 14:26:31,992 INFO L125 PetriNetUnfolderBase]: For 408/408 co-relation queries the response was YES. [2025-03-17 14:26:31,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 377 events. 185/377 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1301 event pairs, 60 based on Foata normal form. 32/406 useless extension candidates. Maximal degree in co-relation 707. Up to 125 conditions per place. [2025-03-17 14:26:31,993 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2025-03-17 14:26:31,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 430 flow [2025-03-17 14:26:31,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:26:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:26:31,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2025-03-17 14:26:31,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2025-03-17 14:26:31,996 INFO L175 Difference]: Start difference. First operand has 71 places, 48 transitions, 252 flow. Second operand 8 states and 161 transitions. [2025-03-17 14:26:31,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 430 flow [2025-03-17 14:26:31,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 359 flow, removed 7 selfloop flow, removed 12 redundant places. [2025-03-17 14:26:31,998 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2025-03-17 14:26:31,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2025-03-17 14:26:31,998 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2025-03-17 14:26:31,998 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2025-03-17 14:26:31,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2025-03-17 14:26:32,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-17 14:26:32,003 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-17 14:26:32,003 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-17 14:26:32,003 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-17 14:26:32,003 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-17 14:26:32,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 14:26:32,004 INFO L422 BasicCegarLoop]: Path program histogram: [5, 2, 1] [2025-03-17 14:26:32,006 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 14:26:32,007 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 14:26:32,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:26:32 BasicIcfg [2025-03-17 14:26:32,012 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 14:26:32,013 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 14:26:32,013 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 14:26:32,013 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 14:26:32,014 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:26:28" (3/4) ... [2025-03-17 14:26:32,015 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 14:26:32,017 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-17 14:26:32,018 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-17 14:26:32,018 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-17 14:26:32,021 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-03-17 14:26:32,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-17 14:26:32,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-17 14:26:32,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-17 14:26:32,079 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 14:26:32,080 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 14:26:32,080 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 14:26:32,081 INFO L158 Benchmark]: Toolchain (without parser) took 4766.25ms. Allocated memory was 167.8MB in the beginning and 310.4MB in the end (delta: 142.6MB). Free memory was 133.0MB in the beginning and 234.7MB in the end (delta: -101.7MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2025-03-17 14:26:32,081 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory was 127.7MB in the beginning and 127.4MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:26:32,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.41ms. Allocated memory is still 167.8MB. Free memory was 133.0MB in the beginning and 122.0MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:26:32,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.89ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 120.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:26:32,083 INFO L158 Benchmark]: Boogie Preprocessor took 39.45ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 118.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:26:32,083 INFO L158 Benchmark]: IcfgBuilder took 470.59ms. Allocated memory is still 167.8MB. Free memory was 118.6MB in the beginning and 88.5MB in the end (delta: 30.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 14:26:32,084 INFO L158 Benchmark]: TraceAbstraction took 3999.70ms. Allocated memory was 167.8MB in the beginning and 310.4MB in the end (delta: 142.6MB). Free memory was 88.0MB in the beginning and 239.6MB in the end (delta: -151.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:26:32,084 INFO L158 Benchmark]: Witness Printer took 67.06ms. Allocated memory is still 310.4MB. Free memory was 239.6MB in the beginning and 234.7MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:26:32,085 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory was 127.7MB in the beginning and 127.4MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.41ms. Allocated memory is still 167.8MB. Free memory was 133.0MB in the beginning and 122.0MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.89ms. Allocated memory is still 167.8MB. Free memory was 122.0MB in the beginning and 120.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.45ms. Allocated memory is still 167.8MB. Free memory was 120.4MB in the beginning and 118.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 470.59ms. Allocated memory is still 167.8MB. Free memory was 118.6MB in the beginning and 88.5MB in the end (delta: 30.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3999.70ms. Allocated memory was 167.8MB in the beginning and 310.4MB in the end (delta: 142.6MB). Free memory was 88.0MB in the beginning and 239.6MB in the end (delta: -151.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 67.06ms. Allocated memory is still 310.4MB. Free memory was 239.6MB in the beginning and 234.7MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 71]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 75 locations, 78 edges, 5 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: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 325 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1394 IncrementalHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 4 mSDtfsCounter, 1394 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=5, InterpolantAutomatonStates: 46, 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, 1.0s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 14:26:32,099 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