./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.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/popl20-figure1-alt.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 e66d74cf738883d82d8ab680e594f84e8947532df35a185c16ed9746f38b197c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:47:25,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:47:26,005 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:47:26,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:47:26,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:47:26,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:47:26,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:47:26,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:47:26,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:47:26,035 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:47:26,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:47:26,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:47:26,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:47:26,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:47:26,036 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:47:26,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:47:26,037 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:47:26,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:47:26,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:47:26,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:47:26,038 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:47:26,038 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:47:26,038 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:47:26,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:47:26,038 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:47:26,039 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:47:26,039 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:47:26,039 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:47:26,039 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:47:26,039 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:47:26,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:47:26,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:47:26,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:47:26,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:47:26,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:47:26,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:47:26,040 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:47:26,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:47:26,041 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:47:26,041 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:47:26,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:47:26,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:47:26,041 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e66d74cf738883d82d8ab680e594f84e8947532df35a185c16ed9746f38b197c [2024-11-22 21:47:26,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:47:26,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:47:26,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:47:26,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:47:26,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:47:26,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2024-11-22 21:47:26,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:47:28,266 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:47:28,267 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-figure1-alt.wvr.c [2024-11-22 21:47:28,274 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c4c9214/0a24f785ed104886acc2958442b3a25b/FLAG5b99d3097 [2024-11-22 21:47:28,286 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7c4c9214/0a24f785ed104886acc2958442b3a25b [2024-11-22 21:47:28,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:47:28,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:47:28,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:47:28,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:47:28,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:47:28,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68abb61c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28, skipping insertion in model container [2024-11-22 21:47:28,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,317 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:47:28,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:47:28,476 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:47:28,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:47:28,509 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:47:28,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28 WrapperNode [2024-11-22 21:47:28,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:47:28,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:47:28,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:47:28,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:47:28,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,540 INFO L138 Inliner]: procedures = 18, calls = 12, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 68 [2024-11-22 21:47:28,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:47:28,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:47:28,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:47:28,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:47:28,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,568 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]. [2024-11-22 21:47:28,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:47:28,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:47:28,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:47:28,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:47:28,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (1/1) ... [2024-11-22 21:47:28,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:47:28,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:28,618 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) [2024-11-22 21:47:28,620 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 [2024-11-22 21:47:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:47:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-22 21:47:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-22 21:47:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-22 21:47:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-22 21:47:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:47:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:47:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:47:28,661 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:47:28,735 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:47:28,737 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:47:28,906 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:47:28,906 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:47:29,020 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:47:29,020 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 21:47:29,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:47:29 BoogieIcfgContainer [2024-11-22 21:47:29,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:47:29,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:47:29,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:47:29,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:47:29,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:47:28" (1/3) ... [2024-11-22 21:47:29,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3854e5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:47:29, skipping insertion in model container [2024-11-22 21:47:29,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:28" (2/3) ... [2024-11-22 21:47:29,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3854e5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:47:29, skipping insertion in model container [2024-11-22 21:47:29,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:47:29" (3/3) ... [2024-11-22 21:47:29,028 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure1-alt.wvr.c [2024-11-22 21:47:29,040 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:47:29,041 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 21:47:29,041 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:47:29,071 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 21:47:29,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 24 transitions, 62 flow [2024-11-22 21:47:29,118 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-11-22 21:47:29,118 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:47:29,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 22 events. 2/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2024-11-22 21:47:29,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 24 transitions, 62 flow [2024-11-22 21:47:29,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2024-11-22 21:47:29,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:47:29,134 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;@6994c8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:47:29,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-22 21:47:29,139 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:47:29,140 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-11-22 21:47:29,140 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 21:47:29,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:29,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:29,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:29,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:29,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1299096925, now seen corresponding path program 1 times [2024-11-22 21:47:29,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:29,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136101175] [2024-11-22 21:47:29,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:47:29,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:47:29,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:29,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:29,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136101175] [2024-11-22 21:47:29,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136101175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:47:29,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:47:29,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:47:29,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158932852] [2024-11-22 21:47:29,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:47:29,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:47:29,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:29,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:47:29,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:47:29,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-22 21:47:29,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 54 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:29,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:29,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-22 21:47:29,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:29,855 INFO L124 PetriNetUnfolderBase]: 87/185 cut-off events. [2024-11-22 21:47:29,856 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-22 21:47:29,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 185 events. 87/185 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 656 event pairs, 12 based on Foata normal form. 3/181 useless extension candidates. Maximal degree in co-relation 312. Up to 108 conditions per place. [2024-11-22 21:47:29,861 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 30 selfloop transitions, 4 changer transitions 9/45 dead transitions. [2024-11-22 21:47:29,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 45 transitions, 212 flow [2024-11-22 21:47:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:47:29,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:47:29,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 85 transitions. [2024-11-22 21:47:29,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2024-11-22 21:47:29,872 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 54 flow. Second operand 7 states and 85 transitions. [2024-11-22 21:47:29,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 45 transitions, 212 flow [2024-11-22 21:47:29,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 45 transitions, 188 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:47:29,877 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 78 flow [2024-11-22 21:47:29,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2024-11-22 21:47:29,880 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2024-11-22 21:47:29,881 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 78 flow [2024-11-22 21:47:29,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:29,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:29,881 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:29,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:47:29,881 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:29,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:29,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1491299389, now seen corresponding path program 2 times [2024-11-22 21:47:29,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:29,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606335408] [2024-11-22 21:47:29,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:47:29,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:29,892 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:47:29,893 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:30,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:30,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:30,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606335408] [2024-11-22 21:47:30,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606335408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:47:30,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:47:30,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:47:30,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942318112] [2024-11-22 21:47:30,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:47:30,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:47:30,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:30,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:47:30,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:47:30,079 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-22 21:47:30,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 78 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:30,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:30,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-22 21:47:30,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:30,205 INFO L124 PetriNetUnfolderBase]: 85/178 cut-off events. [2024-11-22 21:47:30,205 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-22 21:47:30,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 178 events. 85/178 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 587 event pairs, 16 based on Foata normal form. 1/178 useless extension candidates. Maximal degree in co-relation 477. Up to 110 conditions per place. [2024-11-22 21:47:30,207 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 29 selfloop transitions, 8 changer transitions 6/45 dead transitions. [2024-11-22 21:47:30,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 45 transitions, 254 flow [2024-11-22 21:47:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:47:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:47:30,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 79 transitions. [2024-11-22 21:47:30,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47023809523809523 [2024-11-22 21:47:30,209 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 78 flow. Second operand 7 states and 79 transitions. [2024-11-22 21:47:30,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 45 transitions, 254 flow [2024-11-22 21:47:30,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 45 transitions, 235 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-22 21:47:30,212 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 128 flow [2024-11-22 21:47:30,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=128, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2024-11-22 21:47:30,213 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2024-11-22 21:47:30,214 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 128 flow [2024-11-22 21:47:30,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:30,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:30,214 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:30,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:47:30,214 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:30,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:30,215 INFO L85 PathProgramCache]: Analyzing trace with hash 764365793, now seen corresponding path program 3 times [2024-11-22 21:47:30,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:30,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494184065] [2024-11-22 21:47:30,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:47:30,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:30,232 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 21:47:30,232 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:30,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:30,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494184065] [2024-11-22 21:47:30,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494184065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:47:30,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:47:30,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:47:30,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952121478] [2024-11-22 21:47:30,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:47:30,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:47:30,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:30,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:47:30,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:47:30,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-22 21:47:30,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 128 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:30,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:30,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-22 21:47:30,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:30,569 INFO L124 PetriNetUnfolderBase]: 90/188 cut-off events. [2024-11-22 21:47:30,569 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-22 21:47:30,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 188 events. 90/188 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 657 event pairs, 28 based on Foata normal form. 1/189 useless extension candidates. Maximal degree in co-relation 558. Up to 112 conditions per place. [2024-11-22 21:47:30,573 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 28 selfloop transitions, 11 changer transitions 7/48 dead transitions. [2024-11-22 21:47:30,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 300 flow [2024-11-22 21:47:30,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:47:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:47:30,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 78 transitions. [2024-11-22 21:47:30,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2024-11-22 21:47:30,576 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 128 flow. Second operand 7 states and 78 transitions. [2024-11-22 21:47:30,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 300 flow [2024-11-22 21:47:30,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 48 transitions, 290 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-22 21:47:30,579 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 183 flow [2024-11-22 21:47:30,579 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=183, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2024-11-22 21:47:30,580 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 17 predicate places. [2024-11-22 21:47:30,581 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 183 flow [2024-11-22 21:47:30,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:30,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:30,582 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:30,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 21:47:30,582 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:30,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:30,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1003485859, now seen corresponding path program 4 times [2024-11-22 21:47:30,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:30,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331025237] [2024-11-22 21:47:30,583 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:47:30,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:30,593 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:47:30,594 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:30,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:30,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331025237] [2024-11-22 21:47:30,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331025237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:47:30,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:47:30,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:47:30,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233376635] [2024-11-22 21:47:30,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:47:30,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:47:30,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:30,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:47:30,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:47:30,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-22 21:47:30,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 183 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:30,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:30,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-22 21:47:30,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:30,848 INFO L124 PetriNetUnfolderBase]: 88/189 cut-off events. [2024-11-22 21:47:30,848 INFO L125 PetriNetUnfolderBase]: For 322/322 co-relation queries the response was YES. [2024-11-22 21:47:30,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 189 events. 88/189 cut-off events. For 322/322 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 661 event pairs, 26 based on Foata normal form. 1/189 useless extension candidates. Maximal degree in co-relation 625. Up to 114 conditions per place. [2024-11-22 21:47:30,850 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 32 selfloop transitions, 12 changer transitions 6/52 dead transitions. [2024-11-22 21:47:30,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 52 transitions, 388 flow [2024-11-22 21:47:30,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:47:30,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:47:30,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 80 transitions. [2024-11-22 21:47:30,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-11-22 21:47:30,851 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 183 flow. Second operand 7 states and 80 transitions. [2024-11-22 21:47:30,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 52 transitions, 388 flow [2024-11-22 21:47:30,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 348 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-11-22 21:47:30,854 INFO L231 Difference]: Finished difference. Result has 46 places, 33 transitions, 228 flow [2024-11-22 21:47:30,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=228, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2024-11-22 21:47:30,855 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 20 predicate places. [2024-11-22 21:47:30,855 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 228 flow [2024-11-22 21:47:30,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:30,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:30,855 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:30,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 21:47:30,855 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:30,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:30,856 INFO L85 PathProgramCache]: Analyzing trace with hash 896637833, now seen corresponding path program 5 times [2024-11-22 21:47:30,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:30,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449262196] [2024-11-22 21:47:30,856 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:47:30,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:30,862 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:47:30,862 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:30,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:30,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449262196] [2024-11-22 21:47:30,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449262196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:47:30,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:47:30,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:47:30,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58191128] [2024-11-22 21:47:30,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:47:30,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:47:30,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:30,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:47:30,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:47:30,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-22 21:47:30,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:30,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:30,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-22 21:47:30,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:31,082 INFO L124 PetriNetUnfolderBase]: 86/183 cut-off events. [2024-11-22 21:47:31,083 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-11-22 21:47:31,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 183 events. 86/183 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 635 event pairs, 27 based on Foata normal form. 1/184 useless extension candidates. Maximal degree in co-relation 623. Up to 114 conditions per place. [2024-11-22 21:47:31,084 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 29 selfloop transitions, 13 changer transitions 5/49 dead transitions. [2024-11-22 21:47:31,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 49 transitions, 379 flow [2024-11-22 21:47:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:47:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:47:31,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 77 transitions. [2024-11-22 21:47:31,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2024-11-22 21:47:31,086 INFO L175 Difference]: Start difference. First operand has 46 places, 33 transitions, 228 flow. Second operand 7 states and 77 transitions. [2024-11-22 21:47:31,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 49 transitions, 379 flow [2024-11-22 21:47:31,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 49 transitions, 360 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-22 21:47:31,088 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 232 flow [2024-11-22 21:47:31,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=232, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2024-11-22 21:47:31,089 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2024-11-22 21:47:31,089 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 232 flow [2024-11-22 21:47:31,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:31,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:31,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:31,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 21:47:31,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:31,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:31,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1142014009, now seen corresponding path program 6 times [2024-11-22 21:47:31,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:31,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292063572] [2024-11-22 21:47:31,091 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:47:31,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:31,097 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 21:47:31,097 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:31,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:31,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292063572] [2024-11-22 21:47:31,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292063572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:47:31,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:47:31,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:47:31,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533095474] [2024-11-22 21:47:31,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:47:31,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:47:31,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:31,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:47:31,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:47:31,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-22 21:47:31,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 232 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:31,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:31,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-22 21:47:31,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:31,327 INFO L124 PetriNetUnfolderBase]: 82/166 cut-off events. [2024-11-22 21:47:31,328 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2024-11-22 21:47:31,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 166 events. 82/166 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 521 event pairs, 26 based on Foata normal form. 1/166 useless extension candidates. Maximal degree in co-relation 580. Up to 114 conditions per place. [2024-11-22 21:47:31,329 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 23 selfloop transitions, 13 changer transitions 6/44 dead transitions. [2024-11-22 21:47:31,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 44 transitions, 365 flow [2024-11-22 21:47:31,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:47:31,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:47:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 73 transitions. [2024-11-22 21:47:31,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-11-22 21:47:31,332 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 232 flow. Second operand 7 states and 73 transitions. [2024-11-22 21:47:31,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 44 transitions, 365 flow [2024-11-22 21:47:31,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 44 transitions, 324 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-22 21:47:31,334 INFO L231 Difference]: Finished difference. Result has 49 places, 32 transitions, 220 flow [2024-11-22 21:47:31,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=220, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2024-11-22 21:47:31,334 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2024-11-22 21:47:31,335 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 220 flow [2024-11-22 21:47:31,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-22 21:47:31,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:31,335 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:31,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 21:47:31,336 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:31,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:31,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1923546344, now seen corresponding path program 1 times [2024-11-22 21:47:31,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:31,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218900317] [2024-11-22 21:47:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:47:31,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:47:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:31,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:31,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218900317] [2024-11-22 21:47:31,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218900317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:31,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45092291] [2024-11-22 21:47:31,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:47:31,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:31,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:31,492 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:31,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 21:47:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:47:31,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:31,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:31,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:31,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:31,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45092291] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:31,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:31,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-22 21:47:31,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592488139] [2024-11-22 21:47:31,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:31,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 21:47:31,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:31,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 21:47:31,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-11-22 21:47:31,893 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:31,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 220 flow. Second operand has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 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) [2024-11-22 21:47:31,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:31,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:31,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:32,650 INFO L124 PetriNetUnfolderBase]: 318/613 cut-off events. [2024-11-22 21:47:32,650 INFO L125 PetriNetUnfolderBase]: For 611/611 co-relation queries the response was YES. [2024-11-22 21:47:32,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 613 events. 318/613 cut-off events. For 611/611 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2650 event pairs, 14 based on Foata normal form. 17/630 useless extension candidates. Maximal degree in co-relation 1671. Up to 144 conditions per place. [2024-11-22 21:47:32,653 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 125 selfloop transitions, 63 changer transitions 8/197 dead transitions. [2024-11-22 21:47:32,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 197 transitions, 1155 flow [2024-11-22 21:47:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-22 21:47:32,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-22 21:47:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 328 transitions. [2024-11-22 21:47:32,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4019607843137255 [2024-11-22 21:47:32,655 INFO L175 Difference]: Start difference. First operand has 49 places, 32 transitions, 220 flow. Second operand 34 states and 328 transitions. [2024-11-22 21:47:32,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 197 transitions, 1155 flow [2024-11-22 21:47:32,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 197 transitions, 1071 flow, removed 25 selfloop flow, removed 8 redundant places. [2024-11-22 21:47:32,660 INFO L231 Difference]: Finished difference. Result has 78 places, 89 transitions, 546 flow [2024-11-22 21:47:32,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=546, PETRI_PLACES=78, PETRI_TRANSITIONS=89} [2024-11-22 21:47:32,661 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 52 predicate places. [2024-11-22 21:47:32,662 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 89 transitions, 546 flow [2024-11-22 21:47:32,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 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) [2024-11-22 21:47:32,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:32,662 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:32,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 21:47:32,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:32,867 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:32,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:32,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1139730162, now seen corresponding path program 2 times [2024-11-22 21:47:32,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:32,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759071055] [2024-11-22 21:47:32,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:47:32,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:32,873 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:32,873 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:33,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:33,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759071055] [2024-11-22 21:47:33,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759071055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:33,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188981557] [2024-11-22 21:47:33,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:47:33,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:33,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:33,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:33,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 21:47:33,053 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:33,054 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:33,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:33,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:33,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:33,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:33,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:33,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188981557] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:33,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:33,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-22 21:47:33,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569152754] [2024-11-22 21:47:33,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:33,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 21:47:33,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:33,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 21:47:33,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-11-22 21:47:33,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:33,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 89 transitions, 546 flow. Second operand has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 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) [2024-11-22 21:47:33,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:33,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:33,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:33,905 INFO L124 PetriNetUnfolderBase]: 408/781 cut-off events. [2024-11-22 21:47:33,906 INFO L125 PetriNetUnfolderBase]: For 924/924 co-relation queries the response was YES. [2024-11-22 21:47:33,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2684 conditions, 781 events. 408/781 cut-off events. For 924/924 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3695 event pairs, 25 based on Foata normal form. 2/783 useless extension candidates. Maximal degree in co-relation 2624. Up to 374 conditions per place. [2024-11-22 21:47:33,910 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 110 selfloop transitions, 93 changer transitions 8/212 dead transitions. [2024-11-22 21:47:33,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 212 transitions, 1503 flow [2024-11-22 21:47:33,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-22 21:47:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-22 21:47:33,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 285 transitions. [2024-11-22 21:47:33,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38306451612903225 [2024-11-22 21:47:33,912 INFO L175 Difference]: Start difference. First operand has 78 places, 89 transitions, 546 flow. Second operand 31 states and 285 transitions. [2024-11-22 21:47:33,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 212 transitions, 1503 flow [2024-11-22 21:47:33,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 212 transitions, 1364 flow, removed 63 selfloop flow, removed 4 redundant places. [2024-11-22 21:47:33,921 INFO L231 Difference]: Finished difference. Result has 112 places, 132 transitions, 962 flow [2024-11-22 21:47:33,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=962, PETRI_PLACES=112, PETRI_TRANSITIONS=132} [2024-11-22 21:47:33,922 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 86 predicate places. [2024-11-22 21:47:33,923 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 132 transitions, 962 flow [2024-11-22 21:47:33,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 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) [2024-11-22 21:47:33,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:33,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:33,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 21:47:34,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-22 21:47:34,129 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:34,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:34,129 INFO L85 PathProgramCache]: Analyzing trace with hash -276693110, now seen corresponding path program 3 times [2024-11-22 21:47:34,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:34,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758868735] [2024-11-22 21:47:34,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:47:34,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:34,135 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 21:47:34,135 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:34,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:34,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:34,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758868735] [2024-11-22 21:47:34,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758868735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:34,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283176979] [2024-11-22 21:47:34,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:47:34,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:34,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:34,263 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:34,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 21:47:34,298 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 21:47:34,298 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:34,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:34,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:34,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:34,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:34,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:34,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283176979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:34,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:34,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-22 21:47:34,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222945960] [2024-11-22 21:47:34,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:34,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 21:47:34,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:34,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 21:47:34,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2024-11-22 21:47:34,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:34,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 132 transitions, 962 flow. Second operand has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 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) [2024-11-22 21:47:34,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:34,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:34,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:35,939 INFO L124 PetriNetUnfolderBase]: 623/1198 cut-off events. [2024-11-22 21:47:35,939 INFO L125 PetriNetUnfolderBase]: For 2720/2720 co-relation queries the response was YES. [2024-11-22 21:47:35,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4779 conditions, 1198 events. 623/1198 cut-off events. For 2720/2720 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6353 event pairs, 20 based on Foata normal form. 2/1198 useless extension candidates. Maximal degree in co-relation 4743. Up to 215 conditions per place. [2024-11-22 21:47:35,947 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 170 selfloop transitions, 197 changer transitions 8/376 dead transitions. [2024-11-22 21:47:35,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 376 transitions, 3027 flow [2024-11-22 21:47:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-22 21:47:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2024-11-22 21:47:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 535 transitions. [2024-11-22 21:47:35,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3715277777777778 [2024-11-22 21:47:35,949 INFO L175 Difference]: Start difference. First operand has 112 places, 132 transitions, 962 flow. Second operand 60 states and 535 transitions. [2024-11-22 21:47:35,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 376 transitions, 3027 flow [2024-11-22 21:47:35,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 376 transitions, 2933 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-11-22 21:47:35,969 INFO L231 Difference]: Finished difference. Result has 177 places, 230 transitions, 2176 flow [2024-11-22 21:47:35,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=2176, PETRI_PLACES=177, PETRI_TRANSITIONS=230} [2024-11-22 21:47:35,970 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 151 predicate places. [2024-11-22 21:47:35,971 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 230 transitions, 2176 flow [2024-11-22 21:47:35,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.75) internal successors, (138), 24 states have internal predecessors, (138), 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) [2024-11-22 21:47:35,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:35,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:35,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 21:47:36,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:36,176 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:36,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:36,176 INFO L85 PathProgramCache]: Analyzing trace with hash -408965150, now seen corresponding path program 4 times [2024-11-22 21:47:36,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:36,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163546003] [2024-11-22 21:47:36,177 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:47:36,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:36,181 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:47:36,182 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:36,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:36,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:36,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163546003] [2024-11-22 21:47:36,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163546003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:36,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596477106] [2024-11-22 21:47:36,314 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:47:36,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:36,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:36,315 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:36,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 21:47:36,344 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:47:36,344 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:36,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:36,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:36,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:36,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:36,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596477106] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:36,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:36,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:36,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821394777] [2024-11-22 21:47:36,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:36,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:36,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:36,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:36,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:36,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:36,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 230 transitions, 2176 flow. Second operand has 25 states, 25 states have (on average 5.72) internal successors, (143), 25 states have internal predecessors, (143), 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) [2024-11-22 21:47:36,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:36,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:36,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:37,549 INFO L124 PetriNetUnfolderBase]: 679/1300 cut-off events. [2024-11-22 21:47:37,550 INFO L125 PetriNetUnfolderBase]: For 10220/10220 co-relation queries the response was YES. [2024-11-22 21:47:37,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7056 conditions, 1300 events. 679/1300 cut-off events. For 10220/10220 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7063 event pairs, 53 based on Foata normal form. 2/1298 useless extension candidates. Maximal degree in co-relation 6760. Up to 280 conditions per place. [2024-11-22 21:47:37,562 INFO L140 encePairwiseOnDemand]: 11/24 looper letters, 148 selfloop transitions, 209 changer transitions 8/366 dead transitions. [2024-11-22 21:47:37,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 366 transitions, 3862 flow [2024-11-22 21:47:37,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-22 21:47:37,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-22 21:47:37,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 406 transitions. [2024-11-22 21:47:37,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38446969696969696 [2024-11-22 21:47:37,564 INFO L175 Difference]: Start difference. First operand has 177 places, 230 transitions, 2176 flow. Second operand 44 states and 406 transitions. [2024-11-22 21:47:37,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 366 transitions, 3862 flow [2024-11-22 21:47:37,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 366 transitions, 3565 flow, removed 97 selfloop flow, removed 8 redundant places. [2024-11-22 21:47:37,600 INFO L231 Difference]: Finished difference. Result has 219 places, 261 transitions, 2767 flow [2024-11-22 21:47:37,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=2767, PETRI_PLACES=219, PETRI_TRANSITIONS=261} [2024-11-22 21:47:37,601 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 193 predicate places. [2024-11-22 21:47:37,601 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 261 transitions, 2767 flow [2024-11-22 21:47:37,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.72) internal successors, (143), 25 states have internal predecessors, (143), 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) [2024-11-22 21:47:37,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:37,602 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:37,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 21:47:37,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:37,806 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:37,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:37,806 INFO L85 PathProgramCache]: Analyzing trace with hash -524065846, now seen corresponding path program 5 times [2024-11-22 21:47:37,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:37,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085611239] [2024-11-22 21:47:37,806 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:47:37,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:37,811 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:37,811 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:37,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:37,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085611239] [2024-11-22 21:47:37,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085611239] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:37,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136945841] [2024-11-22 21:47:37,907 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:47:37,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:37,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:37,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:37,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 21:47:37,940 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:37,940 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:37,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:37,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:38,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:38,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:38,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:38,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136945841] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:38,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:38,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:38,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322713216] [2024-11-22 21:47:38,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:38,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:38,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:38,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:38,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:38,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:38,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 261 transitions, 2767 flow. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:38,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:38,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:38,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:38,549 INFO L124 PetriNetUnfolderBase]: 686/1321 cut-off events. [2024-11-22 21:47:38,549 INFO L125 PetriNetUnfolderBase]: For 11138/11138 co-relation queries the response was YES. [2024-11-22 21:47:38,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7727 conditions, 1321 events. 686/1321 cut-off events. For 11138/11138 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7241 event pairs, 62 based on Foata normal form. 2/1317 useless extension candidates. Maximal degree in co-relation 7452. Up to 869 conditions per place. [2024-11-22 21:47:38,560 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 140 selfloop transitions, 153 changer transitions 8/302 dead transitions. [2024-11-22 21:47:38,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 302 transitions, 3642 flow [2024-11-22 21:47:38,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 21:47:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-22 21:47:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 144 transitions. [2024-11-22 21:47:38,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-22 21:47:38,563 INFO L175 Difference]: Start difference. First operand has 219 places, 261 transitions, 2767 flow. Second operand 16 states and 144 transitions. [2024-11-22 21:47:38,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 302 transitions, 3642 flow [2024-11-22 21:47:38,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 302 transitions, 3314 flow, removed 31 selfloop flow, removed 20 redundant places. [2024-11-22 21:47:38,606 INFO L231 Difference]: Finished difference. Result has 219 places, 269 transitions, 3078 flow [2024-11-22 21:47:38,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2469, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3078, PETRI_PLACES=219, PETRI_TRANSITIONS=269} [2024-11-22 21:47:38,607 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 193 predicate places. [2024-11-22 21:47:38,607 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 269 transitions, 3078 flow [2024-11-22 21:47:38,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:38,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:38,608 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:38,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 21:47:38,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 21:47:38,810 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:38,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:38,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1935746500, now seen corresponding path program 6 times [2024-11-22 21:47:38,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:38,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978602592] [2024-11-22 21:47:38,810 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:47:38,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:38,815 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-22 21:47:38,816 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:38,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:38,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978602592] [2024-11-22 21:47:38,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978602592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:38,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425378300] [2024-11-22 21:47:38,944 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:47:38,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:38,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:38,946 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:38,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 21:47:38,976 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-22 21:47:38,977 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:38,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:38,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:39,099 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:39,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425378300] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:39,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:39,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-22 21:47:39,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878725173] [2024-11-22 21:47:39,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:39,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 21:47:39,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:39,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 21:47:39,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-11-22 21:47:39,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:39,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 269 transitions, 3078 flow. Second operand has 24 states, 24 states have (on average 5.791666666666667) internal successors, (139), 24 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:39,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:39,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:39,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:39,990 INFO L124 PetriNetUnfolderBase]: 973/1864 cut-off events. [2024-11-22 21:47:39,990 INFO L125 PetriNetUnfolderBase]: For 13470/13470 co-relation queries the response was YES. [2024-11-22 21:47:39,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10937 conditions, 1864 events. 973/1864 cut-off events. For 13470/13470 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 11193 event pairs, 77 based on Foata normal form. 2/1866 useless extension candidates. Maximal degree in co-relation 10875. Up to 811 conditions per place. [2024-11-22 21:47:40,006 INFO L140 encePairwiseOnDemand]: 11/24 looper letters, 201 selfloop transitions, 270 changer transitions 8/480 dead transitions. [2024-11-22 21:47:40,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 480 transitions, 5928 flow [2024-11-22 21:47:40,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-22 21:47:40,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-11-22 21:47:40,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 328 transitions. [2024-11-22 21:47:40,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36936936936936937 [2024-11-22 21:47:40,009 INFO L175 Difference]: Start difference. First operand has 219 places, 269 transitions, 3078 flow. Second operand 37 states and 328 transitions. [2024-11-22 21:47:40,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 480 transitions, 5928 flow [2024-11-22 21:47:40,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 480 transitions, 5815 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-22 21:47:40,062 INFO L231 Difference]: Finished difference. Result has 263 places, 394 transitions, 5433 flow [2024-11-22 21:47:40,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2984, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=5433, PETRI_PLACES=263, PETRI_TRANSITIONS=394} [2024-11-22 21:47:40,063 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 237 predicate places. [2024-11-22 21:47:40,063 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 394 transitions, 5433 flow [2024-11-22 21:47:40,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.791666666666667) internal successors, (139), 24 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:40,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:40,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:40,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-22 21:47:40,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:40,264 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:40,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:40,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1797978382, now seen corresponding path program 7 times [2024-11-22 21:47:40,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:40,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838848257] [2024-11-22 21:47:40,265 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 21:47:40,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:47:40,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:40,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:40,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838848257] [2024-11-22 21:47:40,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838848257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:40,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18069218] [2024-11-22 21:47:40,372 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 21:47:40,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:40,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:40,375 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:40,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 21:47:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:47:40,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:40,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:40,524 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:40,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18069218] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:40,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:40,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121052931] [2024-11-22 21:47:40,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:40,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:40,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:40,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:40,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:40,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 394 transitions, 5433 flow. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:40,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:40,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:40,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:41,167 INFO L124 PetriNetUnfolderBase]: 991/1915 cut-off events. [2024-11-22 21:47:41,168 INFO L125 PetriNetUnfolderBase]: For 18411/18411 co-relation queries the response was YES. [2024-11-22 21:47:41,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12958 conditions, 1915 events. 991/1915 cut-off events. For 18411/18411 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 11690 event pairs, 80 based on Foata normal form. 2/1911 useless extension candidates. Maximal degree in co-relation 12882. Up to 1370 conditions per place. [2024-11-22 21:47:41,189 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 217 selfloop transitions, 216 changer transitions 8/442 dead transitions. [2024-11-22 21:47:41,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 442 transitions, 6711 flow [2024-11-22 21:47:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 21:47:41,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-22 21:47:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 156 transitions. [2024-11-22 21:47:41,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2024-11-22 21:47:41,191 INFO L175 Difference]: Start difference. First operand has 263 places, 394 transitions, 5433 flow. Second operand 18 states and 156 transitions. [2024-11-22 21:47:41,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 442 transitions, 6711 flow [2024-11-22 21:47:41,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 442 transitions, 6589 flow, removed 50 selfloop flow, removed 7 redundant places. [2024-11-22 21:47:41,316 INFO L231 Difference]: Finished difference. Result has 279 places, 408 transitions, 6374 flow [2024-11-22 21:47:41,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5311, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6374, PETRI_PLACES=279, PETRI_TRANSITIONS=408} [2024-11-22 21:47:41,317 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 253 predicate places. [2024-11-22 21:47:41,317 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 408 transitions, 6374 flow [2024-11-22 21:47:41,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:41,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:41,317 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:41,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 21:47:41,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:41,518 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:41,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:41,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1624730690, now seen corresponding path program 8 times [2024-11-22 21:47:41,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:41,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808548368] [2024-11-22 21:47:41,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:47:41,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:41,524 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:41,524 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:41,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:41,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:41,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808548368] [2024-11-22 21:47:41,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808548368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:41,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780052973] [2024-11-22 21:47:41,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:47:41,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:41,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:41,635 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:41,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 21:47:41,666 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:41,667 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:41,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:41,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:41,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:41,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780052973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:41,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:41,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:41,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541901470] [2024-11-22 21:47:41,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:41,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:41,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:41,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:41,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:41,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 408 transitions, 6374 flow. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:41,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:41,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:41,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:42,493 INFO L124 PetriNetUnfolderBase]: 996/1930 cut-off events. [2024-11-22 21:47:42,493 INFO L125 PetriNetUnfolderBase]: For 20127/20127 co-relation queries the response was YES. [2024-11-22 21:47:42,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13872 conditions, 1930 events. 996/1930 cut-off events. For 20127/20127 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 11842 event pairs, 76 based on Foata normal form. 2/1932 useless extension candidates. Maximal degree in co-relation 13790. Up to 1346 conditions per place. [2024-11-22 21:47:42,510 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 219 selfloop transitions, 221 changer transitions 8/449 dead transitions. [2024-11-22 21:47:42,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 449 transitions, 7554 flow [2024-11-22 21:47:42,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-22 21:47:42,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-22 21:47:42,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 171 transitions. [2024-11-22 21:47:42,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35625 [2024-11-22 21:47:42,512 INFO L175 Difference]: Start difference. First operand has 279 places, 408 transitions, 6374 flow. Second operand 20 states and 171 transitions. [2024-11-22 21:47:42,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 449 transitions, 7554 flow [2024-11-22 21:47:42,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 449 transitions, 7495 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-22 21:47:42,625 INFO L231 Difference]: Finished difference. Result has 295 places, 413 transitions, 7183 flow [2024-11-22 21:47:42,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6315, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=7183, PETRI_PLACES=295, PETRI_TRANSITIONS=413} [2024-11-22 21:47:42,625 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 269 predicate places. [2024-11-22 21:47:42,626 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 413 transitions, 7183 flow [2024-11-22 21:47:42,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:42,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:42,626 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:42,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 21:47:42,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-22 21:47:42,826 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:42,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:42,827 INFO L85 PathProgramCache]: Analyzing trace with hash -210424260, now seen corresponding path program 9 times [2024-11-22 21:47:42,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:42,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197314792] [2024-11-22 21:47:42,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:47:42,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:42,832 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 21:47:42,832 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:42,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:42,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197314792] [2024-11-22 21:47:42,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197314792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:42,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598519611] [2024-11-22 21:47:42,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:47:42,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:42,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:42,965 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:42,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 21:47:42,993 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 21:47:42,994 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:42,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:42,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:43,111 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:43,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598519611] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:43,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:43,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:43,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900609319] [2024-11-22 21:47:43,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:43,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:43,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:43,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:43,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:43,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:43,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 413 transitions, 7183 flow. Second operand has 25 states, 25 states have (on average 5.72) internal successors, (143), 25 states have internal predecessors, (143), 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) [2024-11-22 21:47:43,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:43,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:43,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:44,420 INFO L124 PetriNetUnfolderBase]: 1337/2586 cut-off events. [2024-11-22 21:47:44,420 INFO L125 PetriNetUnfolderBase]: For 34420/34420 co-relation queries the response was YES. [2024-11-22 21:47:44,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19795 conditions, 2586 events. 1337/2586 cut-off events. For 34420/34420 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 16995 event pairs, 65 based on Foata normal form. 3/2589 useless extension candidates. Maximal degree in co-relation 19708. Up to 1082 conditions per place. [2024-11-22 21:47:44,446 INFO L140 encePairwiseOnDemand]: 11/24 looper letters, 262 selfloop transitions, 391 changer transitions 12/666 dead transitions. [2024-11-22 21:47:44,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 666 transitions, 11680 flow [2024-11-22 21:47:44,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-22 21:47:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-22 21:47:44,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 397 transitions. [2024-11-22 21:47:44,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3759469696969697 [2024-11-22 21:47:44,448 INFO L175 Difference]: Start difference. First operand has 295 places, 413 transitions, 7183 flow. Second operand 44 states and 397 transitions. [2024-11-22 21:47:44,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 666 transitions, 11680 flow [2024-11-22 21:47:44,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 666 transitions, 11606 flow, removed 8 selfloop flow, removed 13 redundant places. [2024-11-22 21:47:44,672 INFO L231 Difference]: Finished difference. Result has 340 places, 550 transitions, 10814 flow [2024-11-22 21:47:44,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7106, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=10814, PETRI_PLACES=340, PETRI_TRANSITIONS=550} [2024-11-22 21:47:44,672 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 314 predicate places. [2024-11-22 21:47:44,672 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 550 transitions, 10814 flow [2024-11-22 21:47:44,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.72) internal successors, (143), 25 states have internal predecessors, (143), 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) [2024-11-22 21:47:44,673 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:44,673 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:44,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 21:47:44,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 21:47:44,873 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:44,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:44,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1909243592, now seen corresponding path program 10 times [2024-11-22 21:47:44,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:44,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322272714] [2024-11-22 21:47:44,874 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:47:44,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:44,922 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:47:44,922 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:45,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:45,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322272714] [2024-11-22 21:47:45,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322272714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:45,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946762380] [2024-11-22 21:47:45,042 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:47:45,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:45,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:45,044 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:45,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 21:47:45,080 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:47:45,081 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:45,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:45,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:45,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:45,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946762380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:45,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:45,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:45,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640121944] [2024-11-22 21:47:45,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:45,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:45,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:45,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:45,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:45,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:45,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 550 transitions, 10814 flow. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:45,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:45,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:45,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:46,101 INFO L124 PetriNetUnfolderBase]: 1339/2596 cut-off events. [2024-11-22 21:47:46,101 INFO L125 PetriNetUnfolderBase]: For 46427/46427 co-relation queries the response was YES. [2024-11-22 21:47:46,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22448 conditions, 2596 events. 1339/2596 cut-off events. For 46427/46427 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 17112 event pairs, 108 based on Foata normal form. 2/2598 useless extension candidates. Maximal degree in co-relation 22343. Up to 1777 conditions per place. [2024-11-22 21:47:46,129 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 281 selfloop transitions, 309 changer transitions 8/599 dead transitions. [2024-11-22 21:47:46,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 599 transitions, 12404 flow [2024-11-22 21:47:46,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 21:47:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-22 21:47:46,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 201 transitions. [2024-11-22 21:47:46,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.335 [2024-11-22 21:47:46,130 INFO L175 Difference]: Start difference. First operand has 340 places, 550 transitions, 10814 flow. Second operand 25 states and 201 transitions. [2024-11-22 21:47:46,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 599 transitions, 12404 flow [2024-11-22 21:47:46,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 599 transitions, 12046 flow, removed 69 selfloop flow, removed 26 redundant places. [2024-11-22 21:47:46,447 INFO L231 Difference]: Finished difference. Result has 341 places, 560 transitions, 11667 flow [2024-11-22 21:47:46,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=10464, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=550, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=299, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=11667, PETRI_PLACES=341, PETRI_TRANSITIONS=560} [2024-11-22 21:47:46,448 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 315 predicate places. [2024-11-22 21:47:46,448 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 560 transitions, 11667 flow [2024-11-22 21:47:46,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:46,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:46,448 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:46,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-22 21:47:46,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 21:47:46,653 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:46,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash 371064952, now seen corresponding path program 11 times [2024-11-22 21:47:46,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:46,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959420050] [2024-11-22 21:47:46,653 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:47:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:46,658 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:46,658 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:46,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:46,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:46,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959420050] [2024-11-22 21:47:46,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959420050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:46,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666261882] [2024-11-22 21:47:46,779 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:47:46,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:46,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:46,781 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:46,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 21:47:46,810 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:46,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:46,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:46,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:46,943 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:47,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666261882] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:47,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:47,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:47,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326680839] [2024-11-22 21:47:47,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:47,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:47,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:47,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:47,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:47,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:47,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 560 transitions, 11667 flow. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:47,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:47,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:47,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:48,711 INFO L124 PetriNetUnfolderBase]: 1558/3012 cut-off events. [2024-11-22 21:47:48,711 INFO L125 PetriNetUnfolderBase]: For 63191/63191 co-relation queries the response was YES. [2024-11-22 21:47:48,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27208 conditions, 3012 events. 1558/3012 cut-off events. For 63191/63191 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 20332 event pairs, 81 based on Foata normal form. 4/3016 useless extension candidates. Maximal degree in co-relation 27112. Up to 1359 conditions per place. [2024-11-22 21:47:48,742 INFO L140 encePairwiseOnDemand]: 11/24 looper letters, 278 selfloop transitions, 492 changer transitions 12/783 dead transitions. [2024-11-22 21:47:48,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 783 transitions, 16508 flow [2024-11-22 21:47:48,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-22 21:47:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2024-11-22 21:47:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 456 transitions. [2024-11-22 21:47:48,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36538461538461536 [2024-11-22 21:47:48,747 INFO L175 Difference]: Start difference. First operand has 341 places, 560 transitions, 11667 flow. Second operand 52 states and 456 transitions. [2024-11-22 21:47:48,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 783 transitions, 16508 flow [2024-11-22 21:47:49,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 783 transitions, 16264 flow, removed 10 selfloop flow, removed 15 redundant places. [2024-11-22 21:47:49,127 INFO L231 Difference]: Finished difference. Result has 392 places, 674 transitions, 15500 flow [2024-11-22 21:47:49,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=11438, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=560, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=389, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=15500, PETRI_PLACES=392, PETRI_TRANSITIONS=674} [2024-11-22 21:47:49,128 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 366 predicate places. [2024-11-22 21:47:49,129 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 674 transitions, 15500 flow [2024-11-22 21:47:49,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:49,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:49,129 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:49,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 21:47:49,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 21:47:49,330 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:49,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:49,330 INFO L85 PathProgramCache]: Analyzing trace with hash -2082491284, now seen corresponding path program 12 times [2024-11-22 21:47:49,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:49,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18905254] [2024-11-22 21:47:49,330 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:47:49,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:49,335 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-22 21:47:49,335 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:49,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:49,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18905254] [2024-11-22 21:47:49,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18905254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:49,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955541841] [2024-11-22 21:47:49,442 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:47:49,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:49,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:49,444 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:49,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 21:47:49,473 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-22 21:47:49,474 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:49,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:49,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:49,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:49,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:49,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:49,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955541841] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:49,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:49,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:49,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349118655] [2024-11-22 21:47:49,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:49,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:49,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:49,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:49,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:49,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:49,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 674 transitions, 15500 flow. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:49,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:49,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:49,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:50,783 INFO L124 PetriNetUnfolderBase]: 1555/3005 cut-off events. [2024-11-22 21:47:50,783 INFO L125 PetriNetUnfolderBase]: For 92532/92532 co-relation queries the response was YES. [2024-11-22 21:47:50,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30599 conditions, 3005 events. 1555/3005 cut-off events. For 92532/92532 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 20180 event pairs, 98 based on Foata normal form. 1/3006 useless extension candidates. Maximal degree in co-relation 30484. Up to 2072 conditions per place. [2024-11-22 21:47:50,816 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 359 selfloop transitions, 350 changer transitions 4/714 dead transitions. [2024-11-22 21:47:50,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 714 transitions, 17255 flow [2024-11-22 21:47:50,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-22 21:47:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-22 21:47:50,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 192 transitions. [2024-11-22 21:47:50,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-11-22 21:47:50,817 INFO L175 Difference]: Start difference. First operand has 392 places, 674 transitions, 15500 flow. Second operand 24 states and 192 transitions. [2024-11-22 21:47:50,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 714 transitions, 17255 flow [2024-11-22 21:47:51,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 714 transitions, 16736 flow, removed 173 selfloop flow, removed 13 redundant places. [2024-11-22 21:47:51,330 INFO L231 Difference]: Finished difference. Result has 401 places, 678 transitions, 15820 flow [2024-11-22 21:47:51,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=14995, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=347, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=15820, PETRI_PLACES=401, PETRI_TRANSITIONS=678} [2024-11-22 21:47:51,331 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 375 predicate places. [2024-11-22 21:47:51,331 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 678 transitions, 15820 flow [2024-11-22 21:47:51,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:51,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:51,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:51,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-22 21:47:51,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 21:47:51,532 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:51,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:51,532 INFO L85 PathProgramCache]: Analyzing trace with hash 777408522, now seen corresponding path program 13 times [2024-11-22 21:47:51,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:51,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218894149] [2024-11-22 21:47:51,532 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 21:47:51,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:47:51,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:51,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:51,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218894149] [2024-11-22 21:47:51,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218894149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:51,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773133042] [2024-11-22 21:47:51,670 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 21:47:51,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:51,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:51,672 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:51,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 21:47:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:47:51,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:51,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:51,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:51,835 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:51,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:51,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773133042] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:51,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:51,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:51,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505027106] [2024-11-22 21:47:51,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:51,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:51,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:51,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:51,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:51,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:51,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 678 transitions, 15820 flow. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:51,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:51,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:51,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:52,952 INFO L124 PetriNetUnfolderBase]: 1560/3022 cut-off events. [2024-11-22 21:47:52,952 INFO L125 PetriNetUnfolderBase]: For 94417/94417 co-relation queries the response was YES. [2024-11-22 21:47:52,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31090 conditions, 3022 events. 1560/3022 cut-off events. For 94417/94417 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 20406 event pairs, 100 based on Foata normal form. 2/3024 useless extension candidates. Maximal degree in co-relation 30976. Up to 2079 conditions per place. [2024-11-22 21:47:52,986 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 368 selfloop transitions, 338 changer transitions 8/715 dead transitions. [2024-11-22 21:47:52,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 715 transitions, 17621 flow [2024-11-22 21:47:52,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 21:47:52,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-22 21:47:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 158 transitions. [2024-11-22 21:47:52,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34649122807017546 [2024-11-22 21:47:52,987 INFO L175 Difference]: Start difference. First operand has 401 places, 678 transitions, 15820 flow. Second operand 19 states and 158 transitions. [2024-11-22 21:47:52,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 715 transitions, 17621 flow [2024-11-22 21:47:53,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 715 transitions, 17400 flow, removed 4 selfloop flow, removed 18 redundant places. [2024-11-22 21:47:53,421 INFO L231 Difference]: Finished difference. Result has 406 places, 682 transitions, 16895 flow [2024-11-22 21:47:53,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=15599, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=334, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=16895, PETRI_PLACES=406, PETRI_TRANSITIONS=682} [2024-11-22 21:47:53,422 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 380 predicate places. [2024-11-22 21:47:53,422 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 682 transitions, 16895 flow [2024-11-22 21:47:53,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:53,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:53,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:53,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 21:47:53,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:53,623 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:53,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:53,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1208750604, now seen corresponding path program 14 times [2024-11-22 21:47:53,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:53,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173178361] [2024-11-22 21:47:53,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:47:53,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:53,628 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:53,628 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:53,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:53,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173178361] [2024-11-22 21:47:53,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173178361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:53,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934044524] [2024-11-22 21:47:53,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:47:53,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:53,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:53,741 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:53,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 21:47:53,770 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:47:53,770 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:53,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:53,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:53,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:53,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:54,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934044524] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:54,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:54,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:54,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108200817] [2024-11-22 21:47:54,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:54,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:54,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:54,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:54,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:54,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:54,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 682 transitions, 16895 flow. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:54,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:54,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:54,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:55,354 INFO L124 PetriNetUnfolderBase]: 1563/3037 cut-off events. [2024-11-22 21:47:55,354 INFO L125 PetriNetUnfolderBase]: For 109640/109640 co-relation queries the response was YES. [2024-11-22 21:47:55,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32574 conditions, 3037 events. 1563/3037 cut-off events. For 109640/109640 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 20632 event pairs, 94 based on Foata normal form. 3/3040 useless extension candidates. Maximal degree in co-relation 32455. Up to 1771 conditions per place. [2024-11-22 21:47:55,392 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 320 selfloop transitions, 425 changer transitions 12/758 dead transitions. [2024-11-22 21:47:55,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 758 transitions, 19111 flow [2024-11-22 21:47:55,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-22 21:47:55,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2024-11-22 21:47:55,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 324 transitions. [2024-11-22 21:47:55,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34615384615384615 [2024-11-22 21:47:55,393 INFO L175 Difference]: Start difference. First operand has 406 places, 682 transitions, 16895 flow. Second operand 39 states and 324 transitions. [2024-11-22 21:47:55,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 758 transitions, 19111 flow [2024-11-22 21:47:55,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 758 transitions, 18875 flow, removed 12 selfloop flow, removed 12 redundant places. [2024-11-22 21:47:55,871 INFO L231 Difference]: Finished difference. Result has 439 places, 695 transitions, 18353 flow [2024-11-22 21:47:55,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=16659, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=411, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=18353, PETRI_PLACES=439, PETRI_TRANSITIONS=695} [2024-11-22 21:47:55,871 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 413 predicate places. [2024-11-22 21:47:55,871 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 695 transitions, 18353 flow [2024-11-22 21:47:55,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:55,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:55,872 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:55,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-22 21:47:56,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:56,072 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:56,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:56,073 INFO L85 PathProgramCache]: Analyzing trace with hash 509593102, now seen corresponding path program 15 times [2024-11-22 21:47:56,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:56,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589793499] [2024-11-22 21:47:56,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:47:56,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:56,077 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 21:47:56,077 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:56,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:56,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589793499] [2024-11-22 21:47:56,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589793499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:56,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447811236] [2024-11-22 21:47:56,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:47:56,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:56,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:56,199 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:56,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 21:47:56,233 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 21:47:56,233 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:47:56,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 21:47:56,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:56,362 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:56,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447811236] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:56,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:56,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-22 21:47:56,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615373449] [2024-11-22 21:47:56,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:56,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-22 21:47:56,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:56,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-22 21:47:56,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2024-11-22 21:47:56,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:56,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 695 transitions, 18353 flow. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:56,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:56,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:56,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:47:58,232 INFO L124 PetriNetUnfolderBase]: 1587/3079 cut-off events. [2024-11-22 21:47:58,232 INFO L125 PetriNetUnfolderBase]: For 131864/131864 co-relation queries the response was YES. [2024-11-22 21:47:58,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35067 conditions, 3079 events. 1587/3079 cut-off events. For 131864/131864 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 20939 event pairs, 88 based on Foata normal form. 3/3082 useless extension candidates. Maximal degree in co-relation 34953. Up to 1548 conditions per place. [2024-11-22 21:47:58,270 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 289 selfloop transitions, 498 changer transitions 15/803 dead transitions. [2024-11-22 21:47:58,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 803 transitions, 21003 flow [2024-11-22 21:47:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-22 21:47:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2024-11-22 21:47:58,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 448 transitions. [2024-11-22 21:47:58,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3393939393939394 [2024-11-22 21:47:58,272 INFO L175 Difference]: Start difference. First operand has 439 places, 695 transitions, 18353 flow. Second operand 55 states and 448 transitions. [2024-11-22 21:47:58,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 803 transitions, 21003 flow [2024-11-22 21:47:58,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 803 transitions, 20737 flow, removed 60 selfloop flow, removed 21 redundant places. [2024-11-22 21:47:58,782 INFO L231 Difference]: Finished difference. Result has 473 places, 718 transitions, 19909 flow [2024-11-22 21:47:58,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=18078, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=475, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=19909, PETRI_PLACES=473, PETRI_TRANSITIONS=718} [2024-11-22 21:47:58,783 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 447 predicate places. [2024-11-22 21:47:58,783 INFO L471 AbstractCegarLoop]: Abstraction has has 473 places, 718 transitions, 19909 flow [2024-11-22 21:47:58,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:47:58,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:47:58,783 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:47:58,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-22 21:47:58,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:58,984 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:47:58,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:47:58,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2029717016, now seen corresponding path program 1 times [2024-11-22 21:47:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:47:58,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129419951] [2024-11-22 21:47:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:47:58,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:47:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:47:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:59,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:47:59,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129419951] [2024-11-22 21:47:59,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129419951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:47:59,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627309111] [2024-11-22 21:47:59,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:47:59,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:47:59,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:47:59,106 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:47:59,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 21:47:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:47:59,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 21:47:59,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:47:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:59,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:47:59,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:47:59,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627309111] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:47:59,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:47:59,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2024-11-22 21:47:59,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184516507] [2024-11-22 21:47:59,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:47:59,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-22 21:47:59,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:47:59,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-22 21:47:59,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2024-11-22 21:47:59,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:47:59,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 718 transitions, 19909 flow. Second operand has 29 states, 29 states have (on average 5.482758620689655) internal successors, (159), 29 states have internal predecessors, (159), 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) [2024-11-22 21:47:59,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:47:59,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:47:59,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:48:00,726 INFO L124 PetriNetUnfolderBase]: 1593/3084 cut-off events. [2024-11-22 21:48:00,726 INFO L125 PetriNetUnfolderBase]: For 152245/152245 co-relation queries the response was YES. [2024-11-22 21:48:00,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37045 conditions, 3084 events. 1593/3084 cut-off events. For 152245/152245 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 20908 event pairs, 147 based on Foata normal form. 2/3086 useless extension candidates. Maximal degree in co-relation 36928. Up to 939 conditions per place. [2024-11-22 21:48:00,772 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 346 selfloop transitions, 444 changer transitions 23/814 dead transitions. [2024-11-22 21:48:00,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 814 transitions, 22509 flow [2024-11-22 21:48:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-22 21:48:00,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-22 21:48:00,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 323 transitions. [2024-11-22 21:48:00,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3958333333333333 [2024-11-22 21:48:00,774 INFO L175 Difference]: Start difference. First operand has 473 places, 718 transitions, 19909 flow. Second operand 34 states and 323 transitions. [2024-11-22 21:48:00,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 814 transitions, 22509 flow [2024-11-22 21:48:01,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 814 transitions, 22175 flow, removed 92 selfloop flow, removed 25 redundant places. [2024-11-22 21:48:01,478 INFO L231 Difference]: Finished difference. Result has 483 places, 717 transitions, 20525 flow [2024-11-22 21:48:01,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=19587, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=440, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=20525, PETRI_PLACES=483, PETRI_TRANSITIONS=717} [2024-11-22 21:48:01,479 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 457 predicate places. [2024-11-22 21:48:01,479 INFO L471 AbstractCegarLoop]: Abstraction has has 483 places, 717 transitions, 20525 flow [2024-11-22 21:48:01,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.482758620689655) internal successors, (159), 29 states have internal predecessors, (159), 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) [2024-11-22 21:48:01,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:48:01,479 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:48:01,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-22 21:48:01,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-22 21:48:01,680 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:48:01,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:48:01,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1059230623, now seen corresponding path program 16 times [2024-11-22 21:48:01,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:48:01,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20547962] [2024-11-22 21:48:01,680 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:48:01,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:48:01,684 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:48:01,685 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:01,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:48:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20547962] [2024-11-22 21:48:01,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20547962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:48:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832370938] [2024-11-22 21:48:01,819 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:48:01,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:01,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:48:01,821 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:48:01,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 21:48:01,853 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:48:01,854 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:01,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 21:48:01,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:48:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:02,047 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:48:02,215 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:02,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832370938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:48:02,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:48:02,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-11-22 21:48:02,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000925378] [2024-11-22 21:48:02,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:48:02,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 21:48:02,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:48:02,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 21:48:02,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=787, Unknown=0, NotChecked=0, Total=930 [2024-11-22 21:48:02,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:48:02,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 717 transitions, 20525 flow. Second operand has 31 states, 31 states have (on average 5.645161290322581) internal successors, (175), 31 states have internal predecessors, (175), 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) [2024-11-22 21:48:02,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:48:02,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:48:02,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:48:04,754 INFO L124 PetriNetUnfolderBase]: 1970/3757 cut-off events. [2024-11-22 21:48:04,755 INFO L125 PetriNetUnfolderBase]: For 208137/208137 co-relation queries the response was YES. [2024-11-22 21:48:04,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47490 conditions, 3757 events. 1970/3757 cut-off events. For 208137/208137 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 25863 event pairs, 172 based on Foata normal form. 21/3778 useless extension candidates. Maximal degree in co-relation 47367. Up to 1321 conditions per place. [2024-11-22 21:48:04,808 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 380 selfloop transitions, 670 changer transitions 12/1063 dead transitions. [2024-11-22 21:48:04,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1063 transitions, 30424 flow [2024-11-22 21:48:04,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-22 21:48:04,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2024-11-22 21:48:04,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 699 transitions. [2024-11-22 21:48:04,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3551829268292683 [2024-11-22 21:48:04,809 INFO L175 Difference]: Start difference. First operand has 483 places, 717 transitions, 20525 flow. Second operand 82 states and 699 transitions. [2024-11-22 21:48:04,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1063 transitions, 30424 flow [2024-11-22 21:48:05,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1063 transitions, 29005 flow, removed 57 selfloop flow, removed 34 redundant places. [2024-11-22 21:48:05,720 INFO L231 Difference]: Finished difference. Result has 545 places, 917 transitions, 27716 flow [2024-11-22 21:48:05,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=19472, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=488, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=82, PETRI_FLOW=27716, PETRI_PLACES=545, PETRI_TRANSITIONS=917} [2024-11-22 21:48:05,721 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 519 predicate places. [2024-11-22 21:48:05,722 INFO L471 AbstractCegarLoop]: Abstraction has has 545 places, 917 transitions, 27716 flow [2024-11-22 21:48:05,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.645161290322581) internal successors, (175), 31 states have internal predecessors, (175), 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) [2024-11-22 21:48:05,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:48:05,722 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:48:05,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-22 21:48:05,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:05,927 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:48:05,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:48:05,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1191502663, now seen corresponding path program 17 times [2024-11-22 21:48:05,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:48:05,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262755810] [2024-11-22 21:48:05,927 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:48:05,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:48:05,931 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-22 21:48:05,931 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:06,065 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:06,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:48:06,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262755810] [2024-11-22 21:48:06,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262755810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:48:06,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413061943] [2024-11-22 21:48:06,066 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:48:06,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:06,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:48:06,068 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:48:06,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-22 21:48:06,100 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-22 21:48:06,101 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:06,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 21:48:06,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:48:06,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:06,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:48:06,457 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:06,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413061943] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:48:06,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:48:06,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-11-22 21:48:06,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983240441] [2024-11-22 21:48:06,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:48:06,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 21:48:06,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:48:06,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 21:48:06,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=783, Unknown=0, NotChecked=0, Total=930 [2024-11-22 21:48:06,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:48:06,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 917 transitions, 27716 flow. Second operand has 31 states, 31 states have (on average 5.67741935483871) internal successors, (176), 31 states have internal predecessors, (176), 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) [2024-11-22 21:48:06,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:48:06,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:48:06,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:48:08,899 INFO L124 PetriNetUnfolderBase]: 1994/3819 cut-off events. [2024-11-22 21:48:08,899 INFO L125 PetriNetUnfolderBase]: For 289270/289270 co-relation queries the response was YES. [2024-11-22 21:48:08,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51822 conditions, 3819 events. 1994/3819 cut-off events. For 289270/289270 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 26415 event pairs, 216 based on Foata normal form. 3/3822 useless extension candidates. Maximal degree in co-relation 51684. Up to 1325 conditions per place. [2024-11-22 21:48:08,955 INFO L140 encePairwiseOnDemand]: 11/24 looper letters, 361 selfloop transitions, 683 changer transitions 12/1057 dead transitions. [2024-11-22 21:48:08,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 1057 transitions, 31771 flow [2024-11-22 21:48:08,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-22 21:48:08,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2024-11-22 21:48:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 568 transitions. [2024-11-22 21:48:08,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3817204301075269 [2024-11-22 21:48:08,957 INFO L175 Difference]: Start difference. First operand has 545 places, 917 transitions, 27716 flow. Second operand 62 states and 568 transitions. [2024-11-22 21:48:08,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 1057 transitions, 31771 flow [2024-11-22 21:48:10,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 585 places, 1057 transitions, 30826 flow, removed 405 selfloop flow, removed 16 redundant places. [2024-11-22 21:48:10,374 INFO L231 Difference]: Finished difference. Result has 586 places, 923 transitions, 28521 flow [2024-11-22 21:48:10,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=26772, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=914, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=671, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=62, PETRI_FLOW=28521, PETRI_PLACES=586, PETRI_TRANSITIONS=923} [2024-11-22 21:48:10,376 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 560 predicate places. [2024-11-22 21:48:10,376 INFO L471 AbstractCegarLoop]: Abstraction has has 586 places, 923 transitions, 28521 flow [2024-11-22 21:48:10,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.67741935483871) internal successors, (176), 31 states have internal predecessors, (176), 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) [2024-11-22 21:48:10,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:48:10,376 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:48:10,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-22 21:48:10,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:10,581 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:48:10,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:48:10,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1288169333, now seen corresponding path program 18 times [2024-11-22 21:48:10,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:48:10,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542590920] [2024-11-22 21:48:10,581 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:48:10,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:48:10,588 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-22 21:48:10,588 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:10,720 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:10,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:48:10,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542590920] [2024-11-22 21:48:10,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542590920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:48:10,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090802794] [2024-11-22 21:48:10,721 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:48:10,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:10,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:48:10,723 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:48:10,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-22 21:48:10,755 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-22 21:48:10,756 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:10,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 21:48:10,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:48:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:10,949 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:48:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:11,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090802794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:48:11,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:48:11,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-11-22 21:48:11,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345592491] [2024-11-22 21:48:11,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:48:11,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 21:48:11,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:48:11,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 21:48:11,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2024-11-22 21:48:11,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:48:11,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 586 places, 923 transitions, 28521 flow. Second operand has 31 states, 31 states have (on average 5.645161290322581) internal successors, (175), 31 states have internal predecessors, (175), 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) [2024-11-22 21:48:11,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:48:11,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:48:11,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:48:14,750 INFO L124 PetriNetUnfolderBase]: 2550/4871 cut-off events. [2024-11-22 21:48:14,750 INFO L125 PetriNetUnfolderBase]: For 371761/371761 co-relation queries the response was YES. [2024-11-22 21:48:14,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67893 conditions, 4871 events. 2550/4871 cut-off events. For 371761/371761 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 35112 event pairs, 118 based on Foata normal form. 7/4878 useless extension candidates. Maximal degree in co-relation 67758. Up to 1603 conditions per place. [2024-11-22 21:48:14,823 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 471 selfloop transitions, 882 changer transitions 21/1375 dead transitions. [2024-11-22 21:48:14,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 679 places, 1375 transitions, 42597 flow [2024-11-22 21:48:14,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-11-22 21:48:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2024-11-22 21:48:14,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 824 transitions. [2024-11-22 21:48:14,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3468013468013468 [2024-11-22 21:48:14,825 INFO L175 Difference]: Start difference. First operand has 586 places, 923 transitions, 28521 flow. Second operand 99 states and 824 transitions. [2024-11-22 21:48:14,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 679 places, 1375 transitions, 42597 flow [2024-11-22 21:48:16,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 1375 transitions, 41859 flow, removed 40 selfloop flow, removed 29 redundant places. [2024-11-22 21:48:16,844 INFO L231 Difference]: Finished difference. Result has 680 places, 1181 transitions, 39239 flow [2024-11-22 21:48:16,845 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=27891, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=923, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=643, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=99, PETRI_FLOW=39239, PETRI_PLACES=680, PETRI_TRANSITIONS=1181} [2024-11-22 21:48:16,845 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 654 predicate places. [2024-11-22 21:48:16,845 INFO L471 AbstractCegarLoop]: Abstraction has has 680 places, 1181 transitions, 39239 flow [2024-11-22 21:48:16,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.645161290322581) internal successors, (175), 31 states have internal predecessors, (175), 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) [2024-11-22 21:48:16,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:48:16,846 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:48:16,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-22 21:48:17,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:17,046 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:48:17,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:48:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash 2133057283, now seen corresponding path program 19 times [2024-11-22 21:48:17,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:48:17,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605874102] [2024-11-22 21:48:17,047 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 21:48:17,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:48:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:48:17,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:17,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:48:17,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605874102] [2024-11-22 21:48:17,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605874102] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:48:17,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062000855] [2024-11-22 21:48:17,164 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-22 21:48:17,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:17,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:48:17,165 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:48:17,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-22 21:48:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:48:17,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 21:48:17,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:48:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:17,347 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:48:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:17,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062000855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:48:17,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:48:17,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-11-22 21:48:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233938783] [2024-11-22 21:48:17,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:48:17,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 21:48:17,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:48:17,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 21:48:17,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=782, Unknown=0, NotChecked=0, Total=930 [2024-11-22 21:48:17,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:48:17,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 680 places, 1181 transitions, 39239 flow. Second operand has 31 states, 31 states have (on average 5.645161290322581) internal successors, (175), 31 states have internal predecessors, (175), 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) [2024-11-22 21:48:17,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:48:17,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:48:17,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:48:20,406 INFO L124 PetriNetUnfolderBase]: 2601/4963 cut-off events. [2024-11-22 21:48:20,406 INFO L125 PetriNetUnfolderBase]: For 453303/453303 co-relation queries the response was YES. [2024-11-22 21:48:20,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74396 conditions, 4963 events. 2601/4963 cut-off events. For 453303/453303 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 35823 event pairs, 198 based on Foata normal form. 3/4966 useless extension candidates. Maximal degree in co-relation 74234. Up to 2380 conditions per place. [2024-11-22 21:48:20,490 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 490 selfloop transitions, 811 changer transitions 12/1314 dead transitions. [2024-11-22 21:48:20,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 727 places, 1314 transitions, 44549 flow [2024-11-22 21:48:20,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-22 21:48:20,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2024-11-22 21:48:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 451 transitions. [2024-11-22 21:48:20,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35455974842767296 [2024-11-22 21:48:20,491 INFO L175 Difference]: Start difference. First operand has 680 places, 1181 transitions, 39239 flow. Second operand 53 states and 451 transitions. [2024-11-22 21:48:20,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 727 places, 1314 transitions, 44549 flow [2024-11-22 21:48:23,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 704 places, 1314 transitions, 43582 flow, removed 356 selfloop flow, removed 23 redundant places. [2024-11-22 21:48:23,347 INFO L231 Difference]: Finished difference. Result has 712 places, 1209 transitions, 41458 flow [2024-11-22 21:48:23,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=38376, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=784, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=41458, PETRI_PLACES=712, PETRI_TRANSITIONS=1209} [2024-11-22 21:48:23,349 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 686 predicate places. [2024-11-22 21:48:23,349 INFO L471 AbstractCegarLoop]: Abstraction has has 712 places, 1209 transitions, 41458 flow [2024-11-22 21:48:23,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.645161290322581) internal successors, (175), 31 states have internal predecessors, (175), 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) [2024-11-22 21:48:23,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:48:23,349 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:48:23,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-22 21:48:23,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 21:48:23,550 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:48:23,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:48:23,550 INFO L85 PathProgramCache]: Analyzing trace with hash 430174373, now seen corresponding path program 20 times [2024-11-22 21:48:23,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:48:23,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401621885] [2024-11-22 21:48:23,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:48:23,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:48:23,556 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:48:23,556 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:23,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:23,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:48:23,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401621885] [2024-11-22 21:48:23,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401621885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:48:23,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247331020] [2024-11-22 21:48:23,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:48:23,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:23,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:48:23,693 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:48:23,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-22 21:48:23,723 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:48:23,723 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:23,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 21:48:23,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:48:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:23,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:48:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:24,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247331020] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:48:24,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:48:24,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-11-22 21:48:24,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061941294] [2024-11-22 21:48:24,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:48:24,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 21:48:24,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:48:24,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 21:48:24,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2024-11-22 21:48:24,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:48:24,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 712 places, 1209 transitions, 41458 flow. Second operand has 31 states, 31 states have (on average 5.645161290322581) internal successors, (175), 31 states have internal predecessors, (175), 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) [2024-11-22 21:48:24,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:48:24,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:48:24,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:48:32,227 INFO L124 PetriNetUnfolderBase]: 4086/7794 cut-off events. [2024-11-22 21:48:32,227 INFO L125 PetriNetUnfolderBase]: For 770902/770902 co-relation queries the response was YES. [2024-11-22 21:48:32,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120573 conditions, 7794 events. 4086/7794 cut-off events. For 770902/770902 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 60951 event pairs, 70 based on Foata normal form. 15/7809 useless extension candidates. Maximal degree in co-relation 120410. Up to 1871 conditions per place. [2024-11-22 21:48:32,348 INFO L140 encePairwiseOnDemand]: 12/24 looper letters, 523 selfloop transitions, 1688 changer transitions 32/2244 dead transitions. [2024-11-22 21:48:32,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 882 places, 2244 transitions, 75836 flow [2024-11-22 21:48:32,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2024-11-22 21:48:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2024-11-22 21:48:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 1478 transitions. [2024-11-22 21:48:32,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3539272030651341 [2024-11-22 21:48:32,351 INFO L175 Difference]: Start difference. First operand has 712 places, 1209 transitions, 41458 flow. Second operand 174 states and 1478 transitions. [2024-11-22 21:48:32,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 882 places, 2244 transitions, 75836 flow [2024-11-22 21:48:37,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 858 places, 2244 transitions, 75275 flow, removed 58 selfloop flow, removed 24 redundant places. [2024-11-22 21:48:37,272 INFO L231 Difference]: Finished difference. Result has 906 places, 1909 transitions, 71546 flow [2024-11-22 21:48:37,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=41073, PETRI_DIFFERENCE_MINUEND_PLACES=685, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1040, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=174, PETRI_FLOW=71546, PETRI_PLACES=906, PETRI_TRANSITIONS=1909} [2024-11-22 21:48:37,273 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 880 predicate places. [2024-11-22 21:48:37,273 INFO L471 AbstractCegarLoop]: Abstraction has has 906 places, 1909 transitions, 71546 flow [2024-11-22 21:48:37,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.645161290322581) internal successors, (175), 31 states have internal predecessors, (175), 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) [2024-11-22 21:48:37,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:48:37,274 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:48:37,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-22 21:48:37,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-22 21:48:37,474 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:48:37,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:48:37,475 INFO L85 PathProgramCache]: Analyzing trace with hash 297902333, now seen corresponding path program 21 times [2024-11-22 21:48:37,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:48:37,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362568119] [2024-11-22 21:48:37,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:48:37,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:48:37,479 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-22 21:48:37,480 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:37,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:48:37,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362568119] [2024-11-22 21:48:37,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362568119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:48:37,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153517367] [2024-11-22 21:48:37,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:48:37,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:37,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:48:37,664 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:48:37,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-22 21:48:37,692 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-22 21:48:37,693 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:37,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 21:48:37,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:48:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:37,855 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:48:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:38,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153517367] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:48:38,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:48:38,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-11-22 21:48:38,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179625939] [2024-11-22 21:48:38,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:48:38,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 21:48:38,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:48:38,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 21:48:38,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=785, Unknown=0, NotChecked=0, Total=930 [2024-11-22 21:48:38,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:48:38,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 906 places, 1909 transitions, 71546 flow. Second operand has 31 states, 31 states have (on average 5.67741935483871) internal successors, (176), 31 states have internal predecessors, (176), 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) [2024-11-22 21:48:38,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:48:38,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:48:38,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:48:45,508 INFO L124 PetriNetUnfolderBase]: 4227/8070 cut-off events. [2024-11-22 21:48:45,508 INFO L125 PetriNetUnfolderBase]: For 1336442/1336442 co-relation queries the response was YES. [2024-11-22 21:48:45,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142265 conditions, 8070 events. 4227/8070 cut-off events. For 1336442/1336442 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 63660 event pairs, 278 based on Foata normal form. 3/8073 useless extension candidates. Maximal degree in co-relation 142056. Up to 2892 conditions per place. [2024-11-22 21:48:45,675 INFO L140 encePairwiseOnDemand]: 11/24 looper letters, 646 selfloop transitions, 1516 changer transitions 12/2175 dead transitions. [2024-11-22 21:48:45,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 998 places, 2175 transitions, 81660 flow [2024-11-22 21:48:45,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-22 21:48:45,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2024-11-22 21:48:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 828 transitions. [2024-11-22 21:48:45,677 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3520408163265306 [2024-11-22 21:48:45,677 INFO L175 Difference]: Start difference. First operand has 906 places, 1909 transitions, 71546 flow. Second operand 98 states and 828 transitions. [2024-11-22 21:48:45,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 998 places, 2175 transitions, 81660 flow [2024-11-22 21:48:56,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 966 places, 2175 transitions, 77316 flow, removed 1972 selfloop flow, removed 32 redundant places. [2024-11-22 21:48:56,182 INFO L231 Difference]: Finished difference. Result has 984 places, 2001 transitions, 76085 flow [2024-11-22 21:48:56,184 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=68101, PETRI_DIFFERENCE_MINUEND_PLACES=869, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1909, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1429, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=98, PETRI_FLOW=76085, PETRI_PLACES=984, PETRI_TRANSITIONS=2001} [2024-11-22 21:48:56,184 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 958 predicate places. [2024-11-22 21:48:56,184 INFO L471 AbstractCegarLoop]: Abstraction has has 984 places, 2001 transitions, 76085 flow [2024-11-22 21:48:56,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 5.67741935483871) internal successors, (176), 31 states have internal predecessors, (176), 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) [2024-11-22 21:48:56,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:48:56,185 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:48:56,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-22 21:48:56,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-22 21:48:56,385 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-22 21:48:56,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:48:56,385 INFO L85 PathProgramCache]: Analyzing trace with hash 160134215, now seen corresponding path program 22 times [2024-11-22 21:48:56,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:48:56,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262200997] [2024-11-22 21:48:56,386 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:48:56,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:48:56,390 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:48:56,390 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:56,526 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:56,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:48:56,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262200997] [2024-11-22 21:48:56,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262200997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:48:56,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387712069] [2024-11-22 21:48:56,527 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:48:56,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:48:56,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:48:56,528 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:48:56,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-22 21:48:56,559 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:48:56,559 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:48:56,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 21:48:56,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:48:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:56,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:48:56,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:48:56,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387712069] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:48:56,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:48:56,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2024-11-22 21:48:56,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826957336] [2024-11-22 21:48:56,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:48:56,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-22 21:48:56,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:48:56,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-22 21:48:56,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=784, Unknown=0, NotChecked=0, Total=930 [2024-11-22 21:48:56,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-11-22 21:48:56,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 984 places, 2001 transitions, 76085 flow. Second operand has 31 states, 31 states have (on average 5.645161290322581) internal successors, (175), 31 states have internal predecessors, (175), 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) [2024-11-22 21:48:56,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:48:56,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-11-22 21:48:56,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand