./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix014.opt.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/mix014.opt.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 615dc0a4278e77a094a63ed4629507c6f8d1cda73abba57cd69e8912d83fe5fd --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:26:58,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:26:58,109 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:26:58,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:26:58,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:26:58,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:26:58,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:26:58,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:26:58,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:26:58,146 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:26:58,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:26:58,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:26:58,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:26:58,147 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:26:58,148 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:26:58,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:26:58,151 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:26:58,152 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:26:58,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:26:58,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:26:58,152 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:26:58,153 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:26:58,153 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:26:58,153 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:26:58,153 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:26:58,153 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:26:58,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:26:58,154 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:26:58,154 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:26:58,154 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:26:58,154 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:26:58,154 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:26:58,155 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:26:58,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:26:58,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:26:58,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:26:58,155 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:26:58,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:26:58,155 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:26:58,156 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:26:58,156 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:26:58,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:26:58,160 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 615dc0a4278e77a094a63ed4629507c6f8d1cda73abba57cd69e8912d83fe5fd [2024-11-09 10:26:58,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:26:58,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:26:58,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:26:58,431 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:26:58,432 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:26:58,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix014.opt.i [2024-11-09 10:26:59,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:27:00,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:27:00,118 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014.opt.i [2024-11-09 10:27:00,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9f42c69/f98e0c03d4bd404c84526d08bbeff5fe/FLAGf487e71de [2024-11-09 10:27:00,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a9f42c69/f98e0c03d4bd404c84526d08bbeff5fe [2024-11-09 10:27:00,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:27:00,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:27:00,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:27:00,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:27:00,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:27:00,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ff8f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00, skipping insertion in model container [2024-11-09 10:27:00,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,209 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:27:00,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:27:00,594 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:27:00,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:27:00,681 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:27:00,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00 WrapperNode [2024-11-09 10:27:00,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:27:00,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:27:00,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:27:00,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:27:00,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,711 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,750 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 155 [2024-11-09 10:27:00,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:27:00,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:27:00,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:27:00,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:27:00,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,764 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,788 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 10:27:00,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:27:00,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:27:00,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:27:00,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:27:00,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (1/1) ... [2024-11-09 10:27:00,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:27:00,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:27:00,862 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 10:27:00,864 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 10:27:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:27:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:27:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 10:27:00,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 10:27:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 10:27:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 10:27:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 10:27:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 10:27:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 10:27:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 10:27:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:27:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:27:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:27:00,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:27:00,908 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 10:27:01,025 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:27:01,027 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:27:01,379 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:27:01,380 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:27:01,554 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:27:01,554 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:27:01,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:27:01 BoogieIcfgContainer [2024-11-09 10:27:01,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:27:01,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:27:01,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:27:01,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:27:01,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:27:00" (1/3) ... [2024-11-09 10:27:01,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cfe871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:27:01, skipping insertion in model container [2024-11-09 10:27:01,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:27:00" (2/3) ... [2024-11-09 10:27:01,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cfe871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:27:01, skipping insertion in model container [2024-11-09 10:27:01,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:27:01" (3/3) ... [2024-11-09 10:27:01,566 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014.opt.i [2024-11-09 10:27:01,585 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:27:01,586 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 10:27:01,586 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:27:01,656 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:27:01,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-09 10:27:01,722 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-09 10:27:01,723 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:27:01,728 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 5. Compared 107 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 10:27:01,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-09 10:27:01,731 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-09 10:27:01,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:27:01,744 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;@260db671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:27:01,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 10:27:01,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:27:01,752 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-09 10:27:01,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:27:01,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:01,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:27:01,753 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:01,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:01,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1826633851, now seen corresponding path program 1 times [2024-11-09 10:27:01,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:01,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376228894] [2024-11-09 10:27:01,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:01,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:02,352 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 10:27:02,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:02,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376228894] [2024-11-09 10:27:02,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376228894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:02,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:02,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:27:02,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151536045] [2024-11-09 10:27:02,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:02,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:27:02,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:02,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:27:02,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:27:02,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-11-09 10:27:02,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 10:27:02,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:02,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-11-09 10:27:02,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:02,922 INFO L124 PetriNetUnfolderBase]: 1175/1905 cut-off events. [2024-11-09 10:27:02,922 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:27:02,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3641 conditions, 1905 events. 1175/1905 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 12181 event pairs, 343 based on Foata normal form. 120/1991 useless extension candidates. Maximal degree in co-relation 3629. Up to 1361 conditions per place. [2024-11-09 10:27:02,948 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 30 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-11-09 10:27:02,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 196 flow [2024-11-09 10:27:02,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:27:02,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:27:02,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-11-09 10:27:02,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7454545454545455 [2024-11-09 10:27:02,962 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 123 transitions. [2024-11-09 10:27:02,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 196 flow [2024-11-09 10:27:02,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 10:27:02,969 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-09 10:27:02,971 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 10:27:02,980 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-09 10:27:02,980 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-09 10:27:02,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 10:27:02,980 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:02,981 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 10:27:02,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:27:02,981 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:02,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1329342156, now seen corresponding path program 1 times [2024-11-09 10:27:02,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:02,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139616985] [2024-11-09 10:27:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:03,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:27:03,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:03,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139616985] [2024-11-09 10:27:03,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139616985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:03,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:03,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:27:03,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493315025] [2024-11-09 10:27:03,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:03,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:27:03,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:03,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:27:03,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:27:03,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-09 10:27:03,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 10:27:03,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:03,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-09 10:27:03,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:03,304 INFO L124 PetriNetUnfolderBase]: 1027/1865 cut-off events. [2024-11-09 10:27:03,305 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-09 10:27:03,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3475 conditions, 1865 events. 1027/1865 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 14223 event pairs, 1027 based on Foata normal form. 60/1877 useless extension candidates. Maximal degree in co-relation 3465. Up to 1484 conditions per place. [2024-11-09 10:27:03,316 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 20 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-09 10:27:03,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 146 flow [2024-11-09 10:27:03,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:27:03,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:27:03,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-09 10:27:03,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-09 10:27:03,320 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 104 transitions. [2024-11-09 10:27:03,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 146 flow [2024-11-09 10:27:03,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:27:03,324 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-09 10:27:03,324 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 10:27:03,325 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-09 10:27:03,325 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-09 10:27:03,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 10:27:03,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:03,326 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 10:27:03,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:27:03,326 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:03,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:03,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1329343410, now seen corresponding path program 1 times [2024-11-09 10:27:03,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:03,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301601092] [2024-11-09 10:27:03,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:03,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:03,555 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 10:27:03,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:03,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301601092] [2024-11-09 10:27:03,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301601092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:03,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:03,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:27:03,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432934749] [2024-11-09 10:27:03,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:03,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:27:03,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:03,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:27:03,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:27:03,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-09 10:27:03,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 10:27:03,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:03,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-09 10:27:03,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:06,149 INFO L124 PetriNetUnfolderBase]: 13596/21068 cut-off events. [2024-11-09 10:27:06,149 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:27:06,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39949 conditions, 21068 events. 13596/21068 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1232. Compared 163399 event pairs, 4176 based on Foata normal form. 0/20333 useless extension candidates. Maximal degree in co-relation 39943. Up to 8364 conditions per place. [2024-11-09 10:27:06,252 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 41 selfloop transitions, 8 changer transitions 84/149 dead transitions. [2024-11-09 10:27:06,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 149 transitions, 578 flow [2024-11-09 10:27:06,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:27:06,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:27:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 324 transitions. [2024-11-09 10:27:06,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-11-09 10:27:06,259 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 324 transitions. [2024-11-09 10:27:06,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 149 transitions, 578 flow [2024-11-09 10:27:06,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 149 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:27:06,263 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-11-09 10:27:06,267 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 10:27:06,268 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-09 10:27:06,268 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-11-09 10:27:06,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 10:27:06,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:06,269 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 10:27:06,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:27:06,269 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:06,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:06,269 INFO L85 PathProgramCache]: Analyzing trace with hash -482225295, now seen corresponding path program 1 times [2024-11-09 10:27:06,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:06,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741487148] [2024-11-09 10:27:06,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:06,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:06,417 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 10:27:06,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:06,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741487148] [2024-11-09 10:27:06,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741487148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:06,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:06,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:27:06,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563940044] [2024-11-09 10:27:06,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:06,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:27:06,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:06,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:27:06,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:27:06,442 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-09 10:27:06,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 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 10:27:06,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:06,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-09 10:27:06,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:08,638 INFO L124 PetriNetUnfolderBase]: 9570/15437 cut-off events. [2024-11-09 10:27:08,639 INFO L125 PetriNetUnfolderBase]: For 23010/23130 co-relation queries the response was YES. [2024-11-09 10:27:08,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46963 conditions, 15437 events. 9570/15437 cut-off events. For 23010/23130 co-relation queries the response was YES. Maximal size of possible extension queue 866. Compared 119639 event pairs, 1812 based on Foata normal form. 420/15756 useless extension candidates. Maximal degree in co-relation 46948. Up to 5580 conditions per place. [2024-11-09 10:27:08,730 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 50 selfloop transitions, 9 changer transitions 76/151 dead transitions. [2024-11-09 10:27:08,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 151 transitions, 1009 flow [2024-11-09 10:27:08,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:27:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:27:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 332 transitions. [2024-11-09 10:27:08,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6036363636363636 [2024-11-09 10:27:08,732 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 10 states and 332 transitions. [2024-11-09 10:27:08,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 151 transitions, 1009 flow [2024-11-09 10:27:08,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 151 transitions, 859 flow, removed 38 selfloop flow, removed 4 redundant places. [2024-11-09 10:27:08,812 INFO L231 Difference]: Finished difference. Result has 77 places, 55 transitions, 273 flow [2024-11-09 10:27:08,812 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=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=273, PETRI_PLACES=77, PETRI_TRANSITIONS=55} [2024-11-09 10:27:08,813 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-09 10:27:08,814 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 55 transitions, 273 flow [2024-11-09 10:27:08,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 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 10:27:08,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:08,815 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 10:27:08,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:27:08,815 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:08,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:08,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1805638883, now seen corresponding path program 1 times [2024-11-09 10:27:08,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:08,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773515280] [2024-11-09 10:27:08,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:08,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:09,041 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 10:27:09,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:09,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773515280] [2024-11-09 10:27:09,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773515280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:09,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:09,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:27:09,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684307565] [2024-11-09 10:27:09,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:09,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:27:09,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:09,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:27:09,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:27:09,053 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-09 10:27:09,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 55 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 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) [2024-11-09 10:27:09,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:09,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-09 10:27:09,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:10,694 INFO L124 PetriNetUnfolderBase]: 7926/13128 cut-off events. [2024-11-09 10:27:10,695 INFO L125 PetriNetUnfolderBase]: For 24669/24759 co-relation queries the response was YES. [2024-11-09 10:27:10,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40894 conditions, 13128 events. 7926/13128 cut-off events. For 24669/24759 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 103578 event pairs, 1413 based on Foata normal form. 300/13323 useless extension candidates. Maximal degree in co-relation 40872. Up to 4452 conditions per place. [2024-11-09 10:27:10,793 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 63 selfloop transitions, 12 changer transitions 64/155 dead transitions. [2024-11-09 10:27:10,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 155 transitions, 1057 flow [2024-11-09 10:27:10,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:27:10,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:27:10,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 331 transitions. [2024-11-09 10:27:10,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6018181818181818 [2024-11-09 10:27:10,796 INFO L175 Difference]: Start difference. First operand has 77 places, 55 transitions, 273 flow. Second operand 10 states and 331 transitions. [2024-11-09 10:27:10,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 155 transitions, 1057 flow [2024-11-09 10:27:10,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 155 transitions, 1006 flow, removed 23 selfloop flow, removed 5 redundant places. [2024-11-09 10:27:10,880 INFO L231 Difference]: Finished difference. Result has 84 places, 61 transitions, 391 flow [2024-11-09 10:27:10,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=391, PETRI_PLACES=84, PETRI_TRANSITIONS=61} [2024-11-09 10:27:10,881 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2024-11-09 10:27:10,882 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 61 transitions, 391 flow [2024-11-09 10:27:10,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 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) [2024-11-09 10:27:10,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:10,882 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 10:27:10,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:27:10,883 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:10,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:10,883 INFO L85 PathProgramCache]: Analyzing trace with hash 603165533, now seen corresponding path program 1 times [2024-11-09 10:27:10,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:10,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126560511] [2024-11-09 10:27:10,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:10,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:11,217 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 10:27:11,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:11,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126560511] [2024-11-09 10:27:11,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126560511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:11,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:11,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:27:11,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895861948] [2024-11-09 10:27:11,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:11,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:27:11,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:27:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:27:11,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-09 10:27:11,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 61 transitions, 391 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 10:27:11,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:11,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-09 10:27:11,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:14,297 INFO L124 PetriNetUnfolderBase]: 17194/25664 cut-off events. [2024-11-09 10:27:14,298 INFO L125 PetriNetUnfolderBase]: For 43303/47636 co-relation queries the response was YES. [2024-11-09 10:27:14,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71202 conditions, 25664 events. 17194/25664 cut-off events. For 43303/47636 co-relation queries the response was YES. Maximal size of possible extension queue 1412. Compared 189022 event pairs, 3341 based on Foata normal form. 1212/25472 useless extension candidates. Maximal degree in co-relation 71174. Up to 13450 conditions per place. [2024-11-09 10:27:14,674 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 66 selfloop transitions, 6 changer transitions 0/101 dead transitions. [2024-11-09 10:27:14,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 101 transitions, 771 flow [2024-11-09 10:27:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:27:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:27:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-09 10:27:14,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727 [2024-11-09 10:27:14,676 INFO L175 Difference]: Start difference. First operand has 84 places, 61 transitions, 391 flow. Second operand 4 states and 148 transitions. [2024-11-09 10:27:14,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 101 transitions, 771 flow [2024-11-09 10:27:15,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 101 transitions, 711 flow, removed 28 selfloop flow, removed 7 redundant places. [2024-11-09 10:27:15,009 INFO L231 Difference]: Finished difference. Result has 76 places, 66 transitions, 393 flow [2024-11-09 10:27:15,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=393, PETRI_PLACES=76, PETRI_TRANSITIONS=66} [2024-11-09 10:27:15,010 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 14 predicate places. [2024-11-09 10:27:15,010 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 66 transitions, 393 flow [2024-11-09 10:27:15,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 10:27:15,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:15,011 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 10:27:15,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:27:15,011 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:15,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:15,012 INFO L85 PathProgramCache]: Analyzing trace with hash -58613216, now seen corresponding path program 1 times [2024-11-09 10:27:15,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:15,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933532731] [2024-11-09 10:27:15,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:15,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:15,262 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 10:27:15,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:15,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933532731] [2024-11-09 10:27:15,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933532731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:15,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:15,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:27:15,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301076881] [2024-11-09 10:27:15,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:15,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:27:15,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:15,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:27:15,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:27:15,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-09 10:27:15,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 66 transitions, 393 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 10:27:15,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:15,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-09 10:27:15,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:18,183 INFO L124 PetriNetUnfolderBase]: 14891/22549 cut-off events. [2024-11-09 10:27:18,184 INFO L125 PetriNetUnfolderBase]: For 34735/39100 co-relation queries the response was YES. [2024-11-09 10:27:18,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68001 conditions, 22549 events. 14891/22549 cut-off events. For 34735/39100 co-relation queries the response was YES. Maximal size of possible extension queue 1230. Compared 164787 event pairs, 1853 based on Foata normal form. 1239/22702 useless extension candidates. Maximal degree in co-relation 67976. Up to 8749 conditions per place. [2024-11-09 10:27:18,444 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 84 selfloop transitions, 10 changer transitions 0/123 dead transitions. [2024-11-09 10:27:18,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 123 transitions, 913 flow [2024-11-09 10:27:18,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:27:18,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:27:18,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-11-09 10:27:18,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872727272727273 [2024-11-09 10:27:18,446 INFO L175 Difference]: Start difference. First operand has 76 places, 66 transitions, 393 flow. Second operand 5 states and 189 transitions. [2024-11-09 10:27:18,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 123 transitions, 913 flow [2024-11-09 10:27:18,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 123 transitions, 886 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-09 10:27:18,493 INFO L231 Difference]: Finished difference. Result has 77 places, 71 transitions, 446 flow [2024-11-09 10:27:18,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=446, PETRI_PLACES=77, PETRI_TRANSITIONS=71} [2024-11-09 10:27:18,494 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-09 10:27:18,494 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 71 transitions, 446 flow [2024-11-09 10:27:18,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 10:27:18,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:18,495 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 10:27:18,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:27:18,495 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:18,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:18,496 INFO L85 PathProgramCache]: Analyzing trace with hash 499966283, now seen corresponding path program 1 times [2024-11-09 10:27:18,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:18,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332304121] [2024-11-09 10:27:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:18,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:18,881 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 10:27:18,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:18,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332304121] [2024-11-09 10:27:18,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332304121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:18,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:18,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:27:18,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913479054] [2024-11-09 10:27:18,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:18,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:27:18,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:18,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:27:18,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:27:18,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-09 10:27:18,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 71 transitions, 446 flow. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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 10:27:18,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:18,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-09 10:27:18,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:20,854 INFO L124 PetriNetUnfolderBase]: 11943/18129 cut-off events. [2024-11-09 10:27:20,854 INFO L125 PetriNetUnfolderBase]: For 41946/47917 co-relation queries the response was YES. [2024-11-09 10:27:20,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62129 conditions, 18129 events. 11943/18129 cut-off events. For 41946/47917 co-relation queries the response was YES. Maximal size of possible extension queue 1046. Compared 128674 event pairs, 1239 based on Foata normal form. 1092/18305 useless extension candidates. Maximal degree in co-relation 62105. Up to 6243 conditions per place. [2024-11-09 10:27:20,986 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 95 selfloop transitions, 14 changer transitions 0/138 dead transitions. [2024-11-09 10:27:20,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 138 transitions, 1035 flow [2024-11-09 10:27:20,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:27:20,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:27:20,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 228 transitions. [2024-11-09 10:27:20,989 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-11-09 10:27:20,989 INFO L175 Difference]: Start difference. First operand has 77 places, 71 transitions, 446 flow. Second operand 6 states and 228 transitions. [2024-11-09 10:27:20,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 138 transitions, 1035 flow [2024-11-09 10:27:21,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 138 transitions, 1019 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-09 10:27:21,023 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 516 flow [2024-11-09 10:27:21,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=516, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2024-11-09 10:27:21,025 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 20 predicate places. [2024-11-09 10:27:21,026 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 516 flow [2024-11-09 10:27:21,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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 10:27:21,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:21,026 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 10:27:21,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:27:21,027 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:21,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:21,027 INFO L85 PathProgramCache]: Analyzing trace with hash 608938284, now seen corresponding path program 1 times [2024-11-09 10:27:21,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:21,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927059347] [2024-11-09 10:27:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:21,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:21,293 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 10:27:21,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:21,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927059347] [2024-11-09 10:27:21,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927059347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:21,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:21,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:27:21,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990667469] [2024-11-09 10:27:21,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:21,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:27:21,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:27:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:27:21,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-09 10:27:21,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 516 flow. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 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 10:27:21,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:21,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-09 10:27:21,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:23,536 INFO L124 PetriNetUnfolderBase]: 10468/18757 cut-off events. [2024-11-09 10:27:23,537 INFO L125 PetriNetUnfolderBase]: For 41040/45337 co-relation queries the response was YES. [2024-11-09 10:27:23,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60520 conditions, 18757 events. 10468/18757 cut-off events. For 41040/45337 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 166819 event pairs, 3604 based on Foata normal form. 599/17320 useless extension candidates. Maximal degree in co-relation 60494. Up to 7316 conditions per place. [2024-11-09 10:27:23,684 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 63 selfloop transitions, 4 changer transitions 14/125 dead transitions. [2024-11-09 10:27:23,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 125 transitions, 898 flow [2024-11-09 10:27:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:27:23,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:27:23,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 214 transitions. [2024-11-09 10:27:23,686 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2024-11-09 10:27:23,686 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 516 flow. Second operand 6 states and 214 transitions. [2024-11-09 10:27:23,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 125 transitions, 898 flow [2024-11-09 10:27:24,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 125 transitions, 867 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-09 10:27:24,067 INFO L231 Difference]: Finished difference. Result has 88 places, 77 transitions, 516 flow [2024-11-09 10:27:24,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=516, PETRI_PLACES=88, PETRI_TRANSITIONS=77} [2024-11-09 10:27:24,068 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 26 predicate places. [2024-11-09 10:27:24,069 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 77 transitions, 516 flow [2024-11-09 10:27:24,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 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 10:27:24,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:24,069 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 10:27:24,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:27:24,069 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:24,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:24,070 INFO L85 PathProgramCache]: Analyzing trace with hash 463708774, now seen corresponding path program 2 times [2024-11-09 10:27:24,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:24,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687664682] [2024-11-09 10:27:24,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:24,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:24,465 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 10:27:24,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:24,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687664682] [2024-11-09 10:27:24,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687664682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:24,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:24,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:27:24,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406717137] [2024-11-09 10:27:24,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:24,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:27:24,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:27:24,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:27:24,483 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-09 10:27:24,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 77 transitions, 516 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 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) [2024-11-09 10:27:24,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:24,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-09 10:27:24,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:28,187 INFO L124 PetriNetUnfolderBase]: 14059/24938 cut-off events. [2024-11-09 10:27:28,187 INFO L125 PetriNetUnfolderBase]: For 48235/52866 co-relation queries the response was YES. [2024-11-09 10:27:28,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78279 conditions, 24938 events. 14059/24938 cut-off events. For 48235/52866 co-relation queries the response was YES. Maximal size of possible extension queue 1604. Compared 231207 event pairs, 6066 based on Foata normal form. 658/22760 useless extension candidates. Maximal degree in co-relation 78250. Up to 10120 conditions per place. [2024-11-09 10:27:28,441 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 50 selfloop transitions, 8 changer transitions 17/114 dead transitions. [2024-11-09 10:27:28,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 114 transitions, 824 flow [2024-11-09 10:27:28,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:27:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:27:28,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 179 transitions. [2024-11-09 10:27:28,442 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6509090909090909 [2024-11-09 10:27:28,442 INFO L175 Difference]: Start difference. First operand has 88 places, 77 transitions, 516 flow. Second operand 5 states and 179 transitions. [2024-11-09 10:27:28,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 114 transitions, 824 flow [2024-11-09 10:27:28,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 114 transitions, 813 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-09 10:27:28,653 INFO L231 Difference]: Finished difference. Result has 90 places, 76 transitions, 530 flow [2024-11-09 10:27:28,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=530, PETRI_PLACES=90, PETRI_TRANSITIONS=76} [2024-11-09 10:27:28,655 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 28 predicate places. [2024-11-09 10:27:28,655 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 76 transitions, 530 flow [2024-11-09 10:27:28,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 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) [2024-11-09 10:27:28,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:28,655 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 10:27:28,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 10:27:28,656 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:28,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:28,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1123654344, now seen corresponding path program 3 times [2024-11-09 10:27:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:28,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23528255] [2024-11-09 10:27:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:28,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:29,083 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 10:27:29,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:29,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23528255] [2024-11-09 10:27:29,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23528255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:29,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:29,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:27:29,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540687058] [2024-11-09 10:27:29,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:29,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:27:29,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:29,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:27:29,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:27:29,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-09 10:27:29,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 76 transitions, 530 flow. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 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 10:27:29,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:29,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-09 10:27:29,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:34,097 INFO L124 PetriNetUnfolderBase]: 21993/33190 cut-off events. [2024-11-09 10:27:34,098 INFO L125 PetriNetUnfolderBase]: For 78566/88200 co-relation queries the response was YES. [2024-11-09 10:27:34,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114061 conditions, 33190 events. 21993/33190 cut-off events. For 78566/88200 co-relation queries the response was YES. Maximal size of possible extension queue 2325. Compared 261680 event pairs, 2038 based on Foata normal form. 1508/33194 useless extension candidates. Maximal degree in co-relation 114031. Up to 12115 conditions per place. [2024-11-09 10:27:34,369 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 59 selfloop transitions, 18 changer transitions 29/132 dead transitions. [2024-11-09 10:27:34,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 132 transitions, 1002 flow [2024-11-09 10:27:34,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:27:34,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:27:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 249 transitions. [2024-11-09 10:27:34,371 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6467532467532467 [2024-11-09 10:27:34,371 INFO L175 Difference]: Start difference. First operand has 90 places, 76 transitions, 530 flow. Second operand 7 states and 249 transitions. [2024-11-09 10:27:34,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 132 transitions, 1002 flow [2024-11-09 10:27:34,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 132 transitions, 967 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-09 10:27:34,791 INFO L231 Difference]: Finished difference. Result has 91 places, 71 transitions, 492 flow [2024-11-09 10:27:34,792 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=492, PETRI_PLACES=91, PETRI_TRANSITIONS=71} [2024-11-09 10:27:34,792 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 29 predicate places. [2024-11-09 10:27:34,792 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 71 transitions, 492 flow [2024-11-09 10:27:34,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 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 10:27:34,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:34,793 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, 1, 1, 1, 1, 1] [2024-11-09 10:27:34,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 10:27:34,793 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:27:34,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash -392024006, now seen corresponding path program 1 times [2024-11-09 10:27:34,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:34,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579755380] [2024-11-09 10:27:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:34,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:35,119 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 10:27:35,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:35,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579755380] [2024-11-09 10:27:35,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579755380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:35,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:35,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:27:35,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873650004] [2024-11-09 10:27:35,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:35,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:27:35,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:35,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:27:35,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:27:35,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-09 10:27:35,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 71 transitions, 492 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 10:27:35,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:35,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-09 10:27:35,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:37,467 INFO L124 PetriNetUnfolderBase]: 11898/22243 cut-off events. [2024-11-09 10:27:37,467 INFO L125 PetriNetUnfolderBase]: For 46815/54841 co-relation queries the response was YES.