./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix007.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/pthread-wmm/mix007.oepc.i -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 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:26:13,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:26:13,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:26:13,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:26:13,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:26:13,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:26:13,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:26:13,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:26:13,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:26:13,749 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:26:13,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:26:13,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:26:13,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:26:13,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:26:13,754 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:26:13,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:26:13,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:26:13,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:26:13,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:26:13,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:26:13,756 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:26:13,759 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:26:13,760 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:26:13,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:26:13,760 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:26:13,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:26:13,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:26:13,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:26:13,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:26:13,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:26:13,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:26:13,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:26:13,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:26:13,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:26:13,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:26:13,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:26:13,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:26:13,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:26:13,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:26:13,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:26:13,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:26:13,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:26:13,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373 [2024-11-09 10:26:14,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:26:14,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:26:14,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:26:14,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:26:14,066 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:26:14,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix007.oepc.i [2024-11-09 10:26:15,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:26:15,853 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:26:15,854 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix007.oepc.i [2024-11-09 10:26:15,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab190c331/b48729cb426f43328ec4803cdc9986fe/FLAG8e9e3d80f [2024-11-09 10:26:15,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab190c331/b48729cb426f43328ec4803cdc9986fe [2024-11-09 10:26:15,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:26:15,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:26:15,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:26:15,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:26:15,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:26:15,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:26:15" (1/1) ... [2024-11-09 10:26:15,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@648ff465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:15, skipping insertion in model container [2024-11-09 10:26:15,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:26:15" (1/1) ... [2024-11-09 10:26:15,945 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:26:16,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:26:16,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:26:16,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:26:16,515 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:26:16,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16 WrapperNode [2024-11-09 10:26:16,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:26:16,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:26:16,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:26:16,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:26:16,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,580 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-11-09 10:26:16,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:26:16,582 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:26:16,582 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:26:16,582 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:26:16,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,602 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,639 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]. [2024-11-09 10:26:16,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:26:16,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:26:16,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:26:16,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:26:16,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (1/1) ... [2024-11-09 10:26:16,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:26:16,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:26:16,711 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) [2024-11-09 10:26:16,717 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 [2024-11-09 10:26:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:26:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:26:16,763 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 10:26:16,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 10:26:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 10:26:16,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 10:26:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 10:26:16,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 10:26:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 10:26:16,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 10:26:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:26:16,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:26:16,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:26:16,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:26:16,768 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:26:16,961 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:26:16,963 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:26:17,325 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:26:17,325 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:26:17,530 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:26:17,530 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:26:17,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:17 BoogieIcfgContainer [2024-11-09 10:26:17,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:26:17,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:26:17,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:26:17,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:26:17,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:26:15" (1/3) ... [2024-11-09 10:26:17,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9af03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:26:17, skipping insertion in model container [2024-11-09 10:26:17,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:16" (2/3) ... [2024-11-09 10:26:17,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9af03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:26:17, skipping insertion in model container [2024-11-09 10:26:17,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:17" (3/3) ... [2024-11-09 10:26:17,543 INFO L112 eAbstractionObserver]: Analyzing ICFG mix007.oepc.i [2024-11-09 10:26:17,562 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:26:17,562 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 10:26:17,563 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:26:17,637 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:26:17,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-09 10:26:17,714 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-09 10:26:17,714 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:26:17,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-09 10:26:17,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-09 10:26:17,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-09 10:26:17,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:26:17,755 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;@6494a6fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:26:17,755 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 10:26:17,760 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:26:17,760 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-09 10:26:17,761 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:26:17,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:17,762 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 10:26:17,762 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:17,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:17,769 INFO L85 PathProgramCache]: Analyzing trace with hash 13040597, now seen corresponding path program 1 times [2024-11-09 10:26:17,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:17,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534204558] [2024-11-09 10:26:17,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:17,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:18,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:18,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534204558] [2024-11-09 10:26:18,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534204558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:18,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:18,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:26:18,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578373884] [2024-11-09 10:26:18,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:18,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:26:18,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:18,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:26:18,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:26:18,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-09 10:26:18,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-09 10:26:18,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:18,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-09 10:26:18,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:19,565 INFO L124 PetriNetUnfolderBase]: 3311/5200 cut-off events. [2024-11-09 10:26:19,566 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-09 10:26:19,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9880 conditions, 5200 events. 3311/5200 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 33817 event pairs, 2177 based on Foata normal form. 288/5439 useless extension candidates. Maximal degree in co-relation 9868. Up to 3661 conditions per place. [2024-11-09 10:26:19,618 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-11-09 10:26:19,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-11-09 10:26:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:26:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:26:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-09 10:26:19,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-11-09 10:26:19,633 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-11-09 10:26:19,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-11-09 10:26:19,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 10:26:19,643 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-09 10:26:19,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-09 10:26:19,654 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-09 10:26:19,655 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-09 10:26:19,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-11-09 10:26:19,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:19,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:19,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:26:19,657 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:19,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:19,658 INFO L85 PathProgramCache]: Analyzing trace with hash -484167886, now seen corresponding path program 1 times [2024-11-09 10:26:19,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:19,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204068742] [2024-11-09 10:26:19,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:19,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:19,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:19,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204068742] [2024-11-09 10:26:19,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204068742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:19,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:19,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:26:19,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389961818] [2024-11-09 10:26:19,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:19,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:26:19,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:19,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:26:19,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:26:19,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-09 10:26:19,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-09 10:26:19,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:19,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-09 10:26:19,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:20,585 INFO L124 PetriNetUnfolderBase]: 2903/4923 cut-off events. [2024-11-09 10:26:20,586 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-09 10:26:20,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9327 conditions, 4923 events. 2903/4923 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 35547 event pairs, 2903 based on Foata normal form. 144/4892 useless extension candidates. Maximal degree in co-relation 9317. Up to 4016 conditions per place. [2024-11-09 10:26:20,624 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-09 10:26:20,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-11-09 10:26:20,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:26:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:26:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-09 10:26:20,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-09 10:26:20,628 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-11-09 10:26:20,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-11-09 10:26:20,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:26:20,629 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-09 10:26:20,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-09 10:26:20,630 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-09 10:26:20,630 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-09 10:26:20,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-09 10:26:20,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:20,630 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:20,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:26:20,631 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:20,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:20,635 INFO L85 PathProgramCache]: Analyzing trace with hash -484166630, now seen corresponding path program 1 times [2024-11-09 10:26:20,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:20,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106534736] [2024-11-09 10:26:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:20,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:20,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:20,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106534736] [2024-11-09 10:26:20,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106534736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:20,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:20,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:26:20,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192613354] [2024-11-09 10:26:20,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:20,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:26:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:26:20,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:26:20,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-09 10:26:20,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-11-09 10:26:20,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:20,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-09 10:26:20,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:26,509 INFO L124 PetriNetUnfolderBase]: 34962/50322 cut-off events. [2024-11-09 10:26:26,509 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:26:26,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97695 conditions, 50322 events. 34962/50322 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2217. Compared 365857 event pairs, 8498 based on Foata normal form. 0/48944 useless extension candidates. Maximal degree in co-relation 97689. Up to 20017 conditions per place. [2024-11-09 10:26:26,851 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 49 selfloop transitions, 8 changer transitions 102/172 dead transitions. [2024-11-09 10:26:26,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 172 transitions, 678 flow [2024-11-09 10:26:26,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:26:26,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:26:26,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 323 transitions. [2024-11-09 10:26:26,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6525252525252525 [2024-11-09 10:26:26,861 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 323 transitions. [2024-11-09 10:26:26,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 172 transitions, 678 flow [2024-11-09 10:26:26,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 172 transitions, 677 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:26:26,868 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-11-09 10:26:26,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=207, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-09 10:26:26,869 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-09 10:26:26,870 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-11-09 10:26:26,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-11-09 10:26:26,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:26,870 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:26,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:26:26,870 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:26,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:26,876 INFO L85 PathProgramCache]: Analyzing trace with hash 993992313, now seen corresponding path program 1 times [2024-11-09 10:26:26,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:26,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490450037] [2024-11-09 10:26:26,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:26,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:27,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:27,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:27,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490450037] [2024-11-09 10:26:27,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490450037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:27,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:27,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:26:27,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687123759] [2024-11-09 10:26:27,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:27,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:26:27,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:27,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:26:27,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:26:27,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-09 10:26:27,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2024-11-09 10:26:27,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:27,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-09 10:26:27,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:30,962 INFO L124 PetriNetUnfolderBase]: 18841/29949 cut-off events. [2024-11-09 10:26:30,962 INFO L125 PetriNetUnfolderBase]: For 26859/29366 co-relation queries the response was YES. [2024-11-09 10:26:31,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79750 conditions, 29949 events. 18841/29949 cut-off events. For 26859/29366 co-relation queries the response was YES. Maximal size of possible extension queue 1522. Compared 246297 event pairs, 5201 based on Foata normal form. 868/29599 useless extension candidates. Maximal degree in co-relation 79735. Up to 16611 conditions per place. [2024-11-09 10:26:31,206 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 34 selfloop transitions, 3 changer transitions 43/103 dead transitions. [2024-11-09 10:26:31,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 531 flow [2024-11-09 10:26:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:26:31,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:26:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-11-09 10:26:31,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6155844155844156 [2024-11-09 10:26:31,208 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 7 states and 237 transitions. [2024-11-09 10:26:31,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 531 flow [2024-11-09 10:26:31,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 103 transitions, 477 flow, removed 15 selfloop flow, removed 4 redundant places. [2024-11-09 10:26:31,447 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 192 flow [2024-11-09 10:26:31,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-09 10:26:31,448 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-09 10:26:31,449 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 192 flow [2024-11-09 10:26:31,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2024-11-09 10:26:31,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:31,449 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:31,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:26:31,450 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:31,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:31,451 INFO L85 PathProgramCache]: Analyzing trace with hash -370590560, now seen corresponding path program 1 times [2024-11-09 10:26:31,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:31,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404083386] [2024-11-09 10:26:31,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:31,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:31,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:31,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:31,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404083386] [2024-11-09 10:26:31,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404083386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:31,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:31,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:26:31,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674084123] [2024-11-09 10:26:31,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:31,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:26:31,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:31,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:26:31,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:26:31,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-09 10:26:31,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-11-09 10:26:31,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:31,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-09 10:26:31,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:35,488 INFO L124 PetriNetUnfolderBase]: 22485/33154 cut-off events. [2024-11-09 10:26:35,488 INFO L125 PetriNetUnfolderBase]: For 31285/31730 co-relation queries the response was YES. [2024-11-09 10:26:35,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89994 conditions, 33154 events. 22485/33154 cut-off events. For 31285/31730 co-relation queries the response was YES. Maximal size of possible extension queue 1310. Compared 233919 event pairs, 3909 based on Foata normal form. 840/33883 useless extension candidates. Maximal degree in co-relation 89976. Up to 12245 conditions per place. [2024-11-09 10:26:35,811 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 64 selfloop transitions, 8 changer transitions 86/171 dead transitions. [2024-11-09 10:26:35,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 171 transitions, 940 flow [2024-11-09 10:26:35,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:26:35,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:26:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-11-09 10:26:35,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5945454545454546 [2024-11-09 10:26:35,814 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 192 flow. Second operand 10 states and 327 transitions. [2024-11-09 10:26:35,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 171 transitions, 940 flow [2024-11-09 10:26:36,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 171 transitions, 898 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-11-09 10:26:36,401 INFO L231 Difference]: Finished difference. Result has 76 places, 54 transitions, 257 flow [2024-11-09 10:26:36,402 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=257, PETRI_PLACES=76, PETRI_TRANSITIONS=54} [2024-11-09 10:26:36,402 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 14 predicate places. [2024-11-09 10:26:36,403 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 54 transitions, 257 flow [2024-11-09 10:26:36,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-11-09 10:26:36,403 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:36,403 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:36,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:26:36,404 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:36,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:36,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1775311437, now seen corresponding path program 1 times [2024-11-09 10:26:36,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:36,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103349434] [2024-11-09 10:26:36,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:36,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:36,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:36,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103349434] [2024-11-09 10:26:36,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103349434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:36,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:36,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:26:36,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795982376] [2024-11-09 10:26:36,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:36,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:26:36,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:26:36,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:26:36,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-09 10:26:36,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 54 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-09 10:26:36,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:36,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-09 10:26:36,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:41,435 INFO L124 PetriNetUnfolderBase]: 32302/48151 cut-off events. [2024-11-09 10:26:41,436 INFO L125 PetriNetUnfolderBase]: For 37462/44336 co-relation queries the response was YES. [2024-11-09 10:26:41,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116642 conditions, 48151 events. 32302/48151 cut-off events. For 37462/44336 co-relation queries the response was YES. Maximal size of possible extension queue 2010. Compared 358220 event pairs, 4957 based on Foata normal form. 2023/48311 useless extension candidates. Maximal degree in co-relation 116621. Up to 25691 conditions per place. [2024-11-09 10:26:41,881 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/90 dead transitions. [2024-11-09 10:26:41,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 90 transitions, 507 flow [2024-11-09 10:26:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:26:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:26:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-09 10:26:41,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-11-09 10:26:41,883 INFO L175 Difference]: Start difference. First operand has 76 places, 54 transitions, 257 flow. Second operand 4 states and 146 transitions. [2024-11-09 10:26:41,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 90 transitions, 507 flow [2024-11-09 10:26:42,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 90 transitions, 492 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-09 10:26:42,707 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 288 flow [2024-11-09 10:26:42,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2024-11-09 10:26:42,708 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2024-11-09 10:26:42,708 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 288 flow [2024-11-09 10:26:42,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-09 10:26:42,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:42,708 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:42,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:26:42,709 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:42,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:42,709 INFO L85 PathProgramCache]: Analyzing trace with hash -270713947, now seen corresponding path program 1 times [2024-11-09 10:26:42,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:42,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602713824] [2024-11-09 10:26:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:42,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:42,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:42,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:42,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602713824] [2024-11-09 10:26:42,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602713824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:42,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:42,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:26:42,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305603666] [2024-11-09 10:26:42,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:42,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:26:42,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:42,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:26:42,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:26:42,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-09 10:26:42,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 288 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-11-09 10:26:42,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:42,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-09 10:26:42,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:47,156 INFO L124 PetriNetUnfolderBase]: 25918/38933 cut-off events. [2024-11-09 10:26:47,156 INFO L125 PetriNetUnfolderBase]: For 26072/31070 co-relation queries the response was YES. [2024-11-09 10:26:47,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102408 conditions, 38933 events. 25918/38933 cut-off events. For 26072/31070 co-relation queries the response was YES. Maximal size of possible extension queue 1635. Compared 283019 event pairs, 2929 based on Foata normal form. 1725/39131 useless extension candidates. Maximal degree in co-relation 102386. Up to 13353 conditions per place. [2024-11-09 10:26:47,479 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 10 changer transitions 0/112 dead transitions. [2024-11-09 10:26:47,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 112 transitions, 659 flow [2024-11-09 10:26:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:26:47,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:26:47,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 187 transitions. [2024-11-09 10:26:47,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.68 [2024-11-09 10:26:47,481 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 288 flow. Second operand 5 states and 187 transitions. [2024-11-09 10:26:47,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 112 transitions, 659 flow [2024-11-09 10:26:47,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 112 transitions, 632 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-09 10:26:47,491 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 341 flow [2024-11-09 10:26:47,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=341, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2024-11-09 10:26:47,492 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 11 predicate places. [2024-11-09 10:26:47,492 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 341 flow [2024-11-09 10:26:47,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-11-09 10:26:47,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:47,492 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:47,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:26:47,493 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:47,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:47,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1351543178, now seen corresponding path program 1 times [2024-11-09 10:26:47,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:47,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171300922] [2024-11-09 10:26:47,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:47,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:47,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:47,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171300922] [2024-11-09 10:26:47,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171300922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:47,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:47,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:26:47,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218362980] [2024-11-09 10:26:47,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:47,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:26:47,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:47,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:26:47,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:26:47,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-09 10:26:47,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 341 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-09 10:26:47,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:47,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-09 10:26:47,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:51,301 INFO L124 PetriNetUnfolderBase]: 20554/30685 cut-off events. [2024-11-09 10:26:51,302 INFO L125 PetriNetUnfolderBase]: For 40365/43840 co-relation queries the response was YES. [2024-11-09 10:26:51,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90921 conditions, 30685 events. 20554/30685 cut-off events. For 40365/43840 co-relation queries the response was YES. Maximal size of possible extension queue 1454. Compared 215675 event pairs, 2235 based on Foata normal form. 1036/30353 useless extension candidates. Maximal degree in co-relation 90900. Up to 10494 conditions per place. [2024-11-09 10:26:51,528 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 92 selfloop transitions, 14 changer transitions 0/130 dead transitions. [2024-11-09 10:26:51,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 130 transitions, 790 flow [2024-11-09 10:26:51,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:26:51,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:26:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 226 transitions. [2024-11-09 10:26:51,530 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2024-11-09 10:26:51,530 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 341 flow. Second operand 6 states and 226 transitions. [2024-11-09 10:26:51,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 130 transitions, 790 flow [2024-11-09 10:26:51,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 130 transitions, 774 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-09 10:26:51,547 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 411 flow [2024-11-09 10:26:51,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=411, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2024-11-09 10:26:51,548 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 16 predicate places. [2024-11-09 10:26:51,548 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 411 flow [2024-11-09 10:26:51,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-09 10:26:51,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:51,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:51,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:26:51,549 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:51,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:51,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1811930255, now seen corresponding path program 1 times [2024-11-09 10:26:51,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:51,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929092077] [2024-11-09 10:26:51,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:51,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:53,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:53,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929092077] [2024-11-09 10:26:53,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929092077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:53,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:53,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 10:26:53,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20584286] [2024-11-09 10:26:53,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:53,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 10:26:53,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 10:26:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 10:26:53,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-09 10:26:53,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 411 flow. Second operand has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 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) [2024-11-09 10:26:53,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:53,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-09 10:26:53,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:57,442 INFO L124 PetriNetUnfolderBase]: 18737/32864 cut-off events. [2024-11-09 10:26:57,442 INFO L125 PetriNetUnfolderBase]: For 52312/61171 co-relation queries the response was YES. [2024-11-09 10:26:57,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95528 conditions, 32864 events. 18737/32864 cut-off events. For 52312/61171 co-relation queries the response was YES. Maximal size of possible extension queue 2107. Compared 306193 event pairs, 5902 based on Foata normal form. 843/30696 useless extension candidates. Maximal degree in co-relation 95505. Up to 10668 conditions per place. [2024-11-09 10:26:57,735 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 77 selfloop transitions, 12 changer transitions 17/149 dead transitions. [2024-11-09 10:26:57,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 149 transitions, 903 flow [2024-11-09 10:26:57,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:26:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:26:57,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 317 transitions. [2024-11-09 10:26:57,736 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6404040404040404 [2024-11-09 10:26:57,736 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 411 flow. Second operand 9 states and 317 transitions. [2024-11-09 10:26:57,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 149 transitions, 903 flow [2024-11-09 10:26:57,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 149 transitions, 872 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-09 10:26:57,992 INFO L231 Difference]: Finished difference. Result has 88 places, 80 transitions, 474 flow [2024-11-09 10:26:57,992 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=474, PETRI_PLACES=88, PETRI_TRANSITIONS=80} [2024-11-09 10:26:57,993 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 26 predicate places. [2024-11-09 10:26:57,993 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 80 transitions, 474 flow [2024-11-09 10:26:57,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 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) [2024-11-09 10:26:57,993 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:57,994 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:57,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:26:57,994 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:26:57,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:57,994 INFO L85 PathProgramCache]: Analyzing trace with hash 306441899, now seen corresponding path program 2 times [2024-11-09 10:26:57,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:57,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063097110] [2024-11-09 10:26:57,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:57,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:58,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:58,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063097110] [2024-11-09 10:26:58,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063097110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:58,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:58,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:26:58,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237903608] [2024-11-09 10:26:58,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:58,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:26:58,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:58,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:26:58,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:26:58,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-09 10:26:58,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 80 transitions, 474 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-11-09 10:26:58,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:58,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-09 10:26:58,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand