./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055.opt.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:35:57,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:35:57,312 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:35:57,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:35:57,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:35:57,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:35:57,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:35:57,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:35:57,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:35:57,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:35:57,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:35:57,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:35:57,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:35:57,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:35:57,352 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:35:57,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:35:57,353 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:35:57,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:35:57,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:35:57,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:35:57,354 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:35:57,354 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:35:57,354 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:35:57,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:35:57,355 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:35:57,355 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:35:57,355 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:35:57,355 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:35:57,355 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:35:57,356 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:35:57,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:35:57,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:35:57,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:35:57,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:35:57,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:35:57,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:35:57,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:35:57,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:35:57,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:35:57,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:35:57,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:35:57,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:35:57,358 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 [2024-10-11 19:35:57,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:35:57,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:35:57,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:35:57,589 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:35:57,590 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:35:57,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2024-10-11 19:35:58,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:35:59,070 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:35:59,071 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2024-10-11 19:35:59,088 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/000a1164f/6cf35c50b51b4c9aac737253d975a989/FLAG2e258d76f [2024-10-11 19:35:59,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/000a1164f/6cf35c50b51b4c9aac737253d975a989 [2024-10-11 19:35:59,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:35:59,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:35:59,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:35:59,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:35:59,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:35:59,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c34fb45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59, skipping insertion in model container [2024-10-11 19:35:59,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:35:59,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:35:59,501 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:35:59,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:35:59,645 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:35:59,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59 WrapperNode [2024-10-11 19:35:59,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:35:59,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:35:59,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:35:59,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:35:59,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,694 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2024-10-11 19:35:59,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:35:59,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:35:59,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:35:59,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:35:59,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,711 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,730 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]. [2024-10-11 19:35:59,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:35:59,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:35:59,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:35:59,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:35:59,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (1/1) ... [2024-10-11 19:35:59,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:35:59,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:35:59,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:35:59,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:35:59,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:35:59,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:35:59,829 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:35:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:35:59,830 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:35:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:35:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:35:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:35:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 19:35:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 19:35:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:35:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:35:59,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:35:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:35:59,833 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:35:59,954 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:35:59,956 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:36:00,206 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:36:00,206 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:36:00,339 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:36:00,340 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:36:00,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:36:00 BoogieIcfgContainer [2024-10-11 19:36:00,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:36:00,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:36:00,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:36:00,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:36:00,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:35:59" (1/3) ... [2024-10-11 19:36:00,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf441c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:36:00, skipping insertion in model container [2024-10-11 19:36:00,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:35:59" (2/3) ... [2024-10-11 19:36:00,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf441c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:36:00, skipping insertion in model container [2024-10-11 19:36:00,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:36:00" (3/3) ... [2024-10-11 19:36:00,349 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2024-10-11 19:36:00,363 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:36:00,364 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:36:00,364 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:36:00,404 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:36:00,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2024-10-11 19:36:00,460 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2024-10-11 19:36:00,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:36:00,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-10-11 19:36:00,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2024-10-11 19:36:00,468 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2024-10-11 19:36:00,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:36:00,479 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;@6c4f8914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:36:00,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 19:36:00,491 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:36:00,492 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-11 19:36:00,492 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:36:00,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:00,493 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:36:00,493 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:00,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:00,499 INFO L85 PathProgramCache]: Analyzing trace with hash 26352246, now seen corresponding path program 1 times [2024-10-11 19:36:00,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:00,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543331934] [2024-10-11 19:36:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:00,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:00,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543331934] [2024-10-11 19:36:00,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543331934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:00,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:00,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:36:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722570254] [2024-10-11 19:36:00,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:00,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:36:00,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:00,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:36:00,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:36:00,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 53 [2024-10-11 19:36:00,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2024-10-11 19:36:00,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:00,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 53 [2024-10-11 19:36:00,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:01,328 INFO L124 PetriNetUnfolderBase]: 1047/1835 cut-off events. [2024-10-11 19:36:01,329 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:36:01,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3395 conditions, 1835 events. 1047/1835 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 12978 event pairs, 219 based on Foata normal form. 96/1889 useless extension candidates. Maximal degree in co-relation 3383. Up to 1153 conditions per place. [2024-10-11 19:36:01,351 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 31 selfloop transitions, 2 changer transitions 2/57 dead transitions. [2024-10-11 19:36:01,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 57 transitions, 196 flow [2024-10-11 19:36:01,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:36:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:36:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-10-11 19:36:01,361 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7421383647798742 [2024-10-11 19:36:01,363 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 118 transitions. [2024-10-11 19:36:01,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 57 transitions, 196 flow [2024-10-11 19:36:01,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 57 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:36:01,370 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2024-10-11 19:36:01,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-11 19:36:01,374 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-10-11 19:36:01,376 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2024-10-11 19:36:01,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2024-10-11 19:36:01,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:01,376 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:36:01,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:36:01,377 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:01,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:01,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1526744582, now seen corresponding path program 1 times [2024-10-11 19:36:01,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:01,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036981583] [2024-10-11 19:36:01,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:01,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:01,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:01,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:01,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036981583] [2024-10-11 19:36:01,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036981583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:01,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:01,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:36:01,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023913369] [2024-10-11 19:36:01,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:01,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:36:01,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:01,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:36:01,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:36:01,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-10-11 19:36:01,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-10-11 19:36:01,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:01,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-10-11 19:36:01,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:01,677 INFO L124 PetriNetUnfolderBase]: 931/1611 cut-off events. [2024-10-11 19:36:01,677 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-11 19:36:01,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3101 conditions, 1611 events. 931/1611 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 11832 event pairs, 931 based on Foata normal form. 48/1593 useless extension candidates. Maximal degree in co-relation 3091. Up to 1352 conditions per place. [2024-10-11 19:36:01,686 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 20 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-10-11 19:36:01,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 142 flow [2024-10-11 19:36:01,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:36:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:36:01,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-10-11 19:36:01,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6163522012578616 [2024-10-11 19:36:01,687 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 98 transitions. [2024-10-11 19:36:01,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 142 flow [2024-10-11 19:36:01,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:36:01,689 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-10-11 19:36:01,689 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-10-11 19:36:01,690 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-10-11 19:36:01,690 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-10-11 19:36:01,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-10-11 19:36:01,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:01,691 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:36:01,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:36:01,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:01,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:01,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1526743297, now seen corresponding path program 1 times [2024-10-11 19:36:01,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:01,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201574131] [2024-10-11 19:36:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:01,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:02,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:02,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:02,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201574131] [2024-10-11 19:36:02,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201574131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:02,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:02,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:36:02,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389648744] [2024-10-11 19:36:02,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:02,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:36:02,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:02,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:36:02,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:36:02,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-11 19:36:02,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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) [2024-10-11 19:36:02,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:02,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-11 19:36:02,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:04,134 INFO L124 PetriNetUnfolderBase]: 8421/13412 cut-off events. [2024-10-11 19:36:04,134 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:36:04,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25264 conditions, 13412 events. 8421/13412 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 102802 event pairs, 366 based on Foata normal form. 0/13071 useless extension candidates. Maximal degree in co-relation 25258. Up to 5388 conditions per place. [2024-10-11 19:36:04,201 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 50 selfloop transitions, 11 changer transitions 88/165 dead transitions. [2024-10-11 19:36:04,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 165 transitions, 648 flow [2024-10-11 19:36:04,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 19:36:04,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 19:36:04,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 404 transitions. [2024-10-11 19:36:04,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6352201257861635 [2024-10-11 19:36:04,204 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 12 states and 404 transitions. [2024-10-11 19:36:04,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 165 transitions, 648 flow [2024-10-11 19:36:04,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 165 transitions, 647 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:36:04,211 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 203 flow [2024-10-11 19:36:04,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=203, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2024-10-11 19:36:04,212 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 12 predicate places. [2024-10-11 19:36:04,213 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 203 flow [2024-10-11 19:36:04,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 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) [2024-10-11 19:36:04,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:04,213 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:36:04,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:36:04,214 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:04,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:04,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1878280062, now seen corresponding path program 1 times [2024-10-11 19:36:04,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:04,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944810024] [2024-10-11 19:36:04,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:04,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:04,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:04,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:04,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944810024] [2024-10-11 19:36:04,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944810024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:04,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:04,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:36:04,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698115580] [2024-10-11 19:36:04,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:04,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:36:04,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:04,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:36:04,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:36:04,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-11 19:36:04,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2024-10-11 19:36:04,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:04,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-11 19:36:04,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:05,796 INFO L124 PetriNetUnfolderBase]: 6221/10801 cut-off events. [2024-10-11 19:36:05,797 INFO L125 PetriNetUnfolderBase]: For 14899/15616 co-relation queries the response was YES. [2024-10-11 19:36:05,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33289 conditions, 10801 events. 6221/10801 cut-off events. For 14899/15616 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 90159 event pairs, 2201 based on Foata normal form. 299/10452 useless extension candidates. Maximal degree in co-relation 33273. Up to 6085 conditions per place. [2024-10-11 19:36:05,874 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 49 selfloop transitions, 11 changer transitions 12/96 dead transitions. [2024-10-11 19:36:05,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 96 transitions, 561 flow [2024-10-11 19:36:05,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:36:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:36:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-10-11 19:36:05,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145552560646901 [2024-10-11 19:36:05,876 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 203 flow. Second operand 7 states and 228 transitions. [2024-10-11 19:36:05,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 96 transitions, 561 flow [2024-10-11 19:36:06,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 96 transitions, 517 flow, removed 22 selfloop flow, removed 5 redundant places. [2024-10-11 19:36:06,005 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 297 flow [2024-10-11 19:36:06,005 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=297, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2024-10-11 19:36:06,006 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 8 predicate places. [2024-10-11 19:36:06,006 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 297 flow [2024-10-11 19:36:06,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2024-10-11 19:36:06,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:06,006 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] [2024-10-11 19:36:06,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:36:06,007 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:06,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:06,007 INFO L85 PathProgramCache]: Analyzing trace with hash 638088316, now seen corresponding path program 1 times [2024-10-11 19:36:06,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:06,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752913622] [2024-10-11 19:36:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:06,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:06,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:06,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:06,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752913622] [2024-10-11 19:36:06,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752913622] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:06,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:06,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:36:06,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413954710] [2024-10-11 19:36:06,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:06,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:36:06,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:06,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:36:06,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:36:06,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-11 19:36:06,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 297 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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) [2024-10-11 19:36:06,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:06,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-11 19:36:06,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:08,346 INFO L124 PetriNetUnfolderBase]: 8266/14121 cut-off events. [2024-10-11 19:36:08,346 INFO L125 PetriNetUnfolderBase]: For 21873/22532 co-relation queries the response was YES. [2024-10-11 19:36:08,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44489 conditions, 14121 events. 8266/14121 cut-off events. For 21873/22532 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 120124 event pairs, 2650 based on Foata normal form. 274/13664 useless extension candidates. Maximal degree in co-relation 44472. Up to 5812 conditions per place. [2024-10-11 19:36:08,563 INFO L140 encePairwiseOnDemand]: 44/53 looper letters, 64 selfloop transitions, 39 changer transitions 20/147 dead transitions. [2024-10-11 19:36:08,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 147 transitions, 967 flow [2024-10-11 19:36:08,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 19:36:08,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 19:36:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 412 transitions. [2024-10-11 19:36:08,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5979680696661829 [2024-10-11 19:36:08,565 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 297 flow. Second operand 13 states and 412 transitions. [2024-10-11 19:36:08,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 147 transitions, 967 flow [2024-10-11 19:36:08,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 147 transitions, 967 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 19:36:08,584 INFO L231 Difference]: Finished difference. Result has 87 places, 89 transitions, 681 flow [2024-10-11 19:36:08,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=681, PETRI_PLACES=87, PETRI_TRANSITIONS=89} [2024-10-11 19:36:08,585 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 27 predicate places. [2024-10-11 19:36:08,586 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 89 transitions, 681 flow [2024-10-11 19:36:08,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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) [2024-10-11 19:36:08,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:08,586 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] [2024-10-11 19:36:08,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:36:08,587 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:08,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash 212450326, now seen corresponding path program 1 times [2024-10-11 19:36:08,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:08,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570010234] [2024-10-11 19:36:08,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:08,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:08,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:08,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:08,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570010234] [2024-10-11 19:36:08,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570010234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:08,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:08,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:36:08,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724290191] [2024-10-11 19:36:08,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:08,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:36:08,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:08,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:36:08,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:36:08,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-11 19:36:08,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 89 transitions, 681 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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) [2024-10-11 19:36:08,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:08,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-11 19:36:08,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:10,786 INFO L124 PetriNetUnfolderBase]: 9179/16066 cut-off events. [2024-10-11 19:36:10,787 INFO L125 PetriNetUnfolderBase]: For 59679/60623 co-relation queries the response was YES. [2024-10-11 19:36:10,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60893 conditions, 16066 events. 9179/16066 cut-off events. For 59679/60623 co-relation queries the response was YES. Maximal size of possible extension queue 1195. Compared 144802 event pairs, 2282 based on Foata normal form. 306/15449 useless extension candidates. Maximal degree in co-relation 60867. Up to 8773 conditions per place. [2024-10-11 19:36:10,905 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 93 selfloop transitions, 26 changer transitions 16/159 dead transitions. [2024-10-11 19:36:10,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 159 transitions, 1503 flow [2024-10-11 19:36:10,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:36:10,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:36:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 262 transitions. [2024-10-11 19:36:10,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6179245283018868 [2024-10-11 19:36:10,907 INFO L175 Difference]: Start difference. First operand has 87 places, 89 transitions, 681 flow. Second operand 8 states and 262 transitions. [2024-10-11 19:36:10,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 159 transitions, 1503 flow [2024-10-11 19:36:11,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 159 transitions, 1457 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-10-11 19:36:11,069 INFO L231 Difference]: Finished difference. Result has 96 places, 103 transitions, 904 flow [2024-10-11 19:36:11,070 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=904, PETRI_PLACES=96, PETRI_TRANSITIONS=103} [2024-10-11 19:36:11,071 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 36 predicate places. [2024-10-11 19:36:11,072 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 103 transitions, 904 flow [2024-10-11 19:36:11,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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) [2024-10-11 19:36:11,072 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:11,072 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] [2024-10-11 19:36:11,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:36:11,072 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:11,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:11,073 INFO L85 PathProgramCache]: Analyzing trace with hash -561625318, now seen corresponding path program 2 times [2024-10-11 19:36:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:11,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974017513] [2024-10-11 19:36:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:11,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:11,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:11,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974017513] [2024-10-11 19:36:11,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974017513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:11,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:36:11,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438966198] [2024-10-11 19:36:11,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:11,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:36:11,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:11,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:36:11,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:36:11,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-11 19:36:11,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 103 transitions, 904 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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) [2024-10-11 19:36:11,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:11,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-11 19:36:11,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:13,512 INFO L124 PetriNetUnfolderBase]: 9338/16628 cut-off events. [2024-10-11 19:36:13,513 INFO L125 PetriNetUnfolderBase]: For 72231/73043 co-relation queries the response was YES. [2024-10-11 19:36:13,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64065 conditions, 16628 events. 9338/16628 cut-off events. For 72231/73043 co-relation queries the response was YES. Maximal size of possible extension queue 1251. Compared 152553 event pairs, 2141 based on Foata normal form. 331/16071 useless extension candidates. Maximal degree in co-relation 64033. Up to 6668 conditions per place. [2024-10-11 19:36:13,636 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 96 selfloop transitions, 46 changer transitions 22/188 dead transitions. [2024-10-11 19:36:13,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 188 transitions, 1987 flow [2024-10-11 19:36:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:36:13,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:36:13,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 320 transitions. [2024-10-11 19:36:13,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6037735849056604 [2024-10-11 19:36:13,641 INFO L175 Difference]: Start difference. First operand has 96 places, 103 transitions, 904 flow. Second operand 10 states and 320 transitions. [2024-10-11 19:36:13,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 188 transitions, 1987 flow [2024-10-11 19:36:13,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 188 transitions, 1876 flow, removed 47 selfloop flow, removed 1 redundant places. [2024-10-11 19:36:13,828 INFO L231 Difference]: Finished difference. Result has 109 places, 117 transitions, 1174 flow [2024-10-11 19:36:13,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1174, PETRI_PLACES=109, PETRI_TRANSITIONS=117} [2024-10-11 19:36:13,829 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 49 predicate places. [2024-10-11 19:36:13,829 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 117 transitions, 1174 flow [2024-10-11 19:36:13,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 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) [2024-10-11 19:36:13,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:13,829 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] [2024-10-11 19:36:13,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:36:13,830 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:13,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:13,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1747340325, now seen corresponding path program 1 times [2024-10-11 19:36:13,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:13,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119917924] [2024-10-11 19:36:13,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:13,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:14,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:14,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119917924] [2024-10-11 19:36:14,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119917924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:14,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:14,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:36:14,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857076969] [2024-10-11 19:36:14,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:14,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:36:14,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:14,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:36:14,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:36:14,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-11 19:36:14,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 117 transitions, 1174 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-10-11 19:36:14,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:14,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-11 19:36:14,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:18,364 INFO L124 PetriNetUnfolderBase]: 27099/41024 cut-off events. [2024-10-11 19:36:18,364 INFO L125 PetriNetUnfolderBase]: For 221817/228006 co-relation queries the response was YES. [2024-10-11 19:36:18,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154747 conditions, 41024 events. 27099/41024 cut-off events. For 221817/228006 co-relation queries the response was YES. Maximal size of possible extension queue 2009. Compared 321646 event pairs, 5583 based on Foata normal form. 1317/40310 useless extension candidates. Maximal degree in co-relation 154709. Up to 27353 conditions per place. [2024-10-11 19:36:18,690 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 141 selfloop transitions, 6 changer transitions 0/173 dead transitions. [2024-10-11 19:36:18,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 173 transitions, 1980 flow [2024-10-11 19:36:18,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:36:18,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:36:18,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-10-11 19:36:18,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6509433962264151 [2024-10-11 19:36:18,692 INFO L175 Difference]: Start difference. First operand has 109 places, 117 transitions, 1174 flow. Second operand 4 states and 138 transitions. [2024-10-11 19:36:18,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 173 transitions, 1980 flow [2024-10-11 19:36:19,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 173 transitions, 1912 flow, removed 32 selfloop flow, removed 1 redundant places. [2024-10-11 19:36:19,568 INFO L231 Difference]: Finished difference. Result has 113 places, 122 transitions, 1168 flow [2024-10-11 19:36:19,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1168, PETRI_PLACES=113, PETRI_TRANSITIONS=122} [2024-10-11 19:36:19,569 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 53 predicate places. [2024-10-11 19:36:19,569 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 122 transitions, 1168 flow [2024-10-11 19:36:19,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-10-11 19:36:19,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:19,570 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] [2024-10-11 19:36:19,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:36:19,570 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:19,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:19,570 INFO L85 PathProgramCache]: Analyzing trace with hash -861433927, now seen corresponding path program 1 times [2024-10-11 19:36:19,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:19,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138406026] [2024-10-11 19:36:19,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:19,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:19,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:19,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138406026] [2024-10-11 19:36:19,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138406026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:19,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:19,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:36:19,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973630807] [2024-10-11 19:36:19,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:19,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:36:19,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:19,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:36:19,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:36:19,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-11 19:36:19,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 122 transitions, 1168 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:36:19,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:19,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-11 19:36:19,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:22,670 INFO L124 PetriNetUnfolderBase]: 17505/26602 cut-off events. [2024-10-11 19:36:22,670 INFO L125 PetriNetUnfolderBase]: For 123432/131649 co-relation queries the response was YES. [2024-10-11 19:36:22,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102745 conditions, 26602 events. 17505/26602 cut-off events. For 123432/131649 co-relation queries the response was YES. Maximal size of possible extension queue 1280. Compared 194629 event pairs, 2253 based on Foata normal form. 1317/26675 useless extension candidates. Maximal degree in co-relation 102704. Up to 12673 conditions per place. [2024-10-11 19:36:22,858 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 131 selfloop transitions, 10 changer transitions 42/205 dead transitions. [2024-10-11 19:36:22,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 205 transitions, 2288 flow [2024-10-11 19:36:22,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:36:22,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:36:22,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-10-11 19:36:22,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6641509433962264 [2024-10-11 19:36:22,859 INFO L175 Difference]: Start difference. First operand has 113 places, 122 transitions, 1168 flow. Second operand 5 states and 176 transitions. [2024-10-11 19:36:22,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 205 transitions, 2288 flow [2024-10-11 19:36:23,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 205 transitions, 2195 flow, removed 45 selfloop flow, removed 1 redundant places. [2024-10-11 19:36:23,148 INFO L231 Difference]: Finished difference. Result has 118 places, 85 transitions, 677 flow [2024-10-11 19:36:23,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=677, PETRI_PLACES=118, PETRI_TRANSITIONS=85} [2024-10-11 19:36:23,149 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 58 predicate places. [2024-10-11 19:36:23,149 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 85 transitions, 677 flow [2024-10-11 19:36:23,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:36:23,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:23,149 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] [2024-10-11 19:36:23,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:36:23,150 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:23,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:23,150 INFO L85 PathProgramCache]: Analyzing trace with hash 19329265, now seen corresponding path program 1 times [2024-10-11 19:36:23,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:23,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651222907] [2024-10-11 19:36:23,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:23,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:23,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:23,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651222907] [2024-10-11 19:36:23,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651222907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:23,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:23,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:36:23,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342538294] [2024-10-11 19:36:23,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:23,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:36:23,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:23,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:36:23,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:36:23,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-11 19:36:23,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 85 transitions, 677 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2024-10-11 19:36:23,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:23,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-11 19:36:23,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:27,079 INFO L124 PetriNetUnfolderBase]: 17350/28402 cut-off events. [2024-10-11 19:36:27,079 INFO L125 PetriNetUnfolderBase]: For 106652/112127 co-relation queries the response was YES. [2024-10-11 19:36:27,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108024 conditions, 28402 events. 17350/28402 cut-off events. For 106652/112127 co-relation queries the response was YES. Maximal size of possible extension queue 1472. Compared 234416 event pairs, 5710 based on Foata normal form. 754/27128 useless extension candidates. Maximal degree in co-relation 107980. Up to 11079 conditions per place. [2024-10-11 19:36:27,295 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 107 selfloop transitions, 15 changer transitions 31/181 dead transitions. [2024-10-11 19:36:27,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 181 transitions, 1798 flow [2024-10-11 19:36:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:36:27,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:36:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 266 transitions. [2024-10-11 19:36:27,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6273584905660378 [2024-10-11 19:36:27,297 INFO L175 Difference]: Start difference. First operand has 118 places, 85 transitions, 677 flow. Second operand 8 states and 266 transitions. [2024-10-11 19:36:27,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 181 transitions, 1798 flow [2024-10-11 19:36:28,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 181 transitions, 1641 flow, removed 55 selfloop flow, removed 16 redundant places. [2024-10-11 19:36:28,298 INFO L231 Difference]: Finished difference. Result has 99 places, 94 transitions, 773 flow [2024-10-11 19:36:28,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=773, PETRI_PLACES=99, PETRI_TRANSITIONS=94} [2024-10-11 19:36:28,299 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 39 predicate places. [2024-10-11 19:36:28,299 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 94 transitions, 773 flow [2024-10-11 19:36:28,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2024-10-11 19:36:28,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:28,299 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] [2024-10-11 19:36:28,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:36:28,300 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:28,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:28,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1049437675, now seen corresponding path program 1 times [2024-10-11 19:36:28,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:28,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204614462] [2024-10-11 19:36:28,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:28,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:28,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:28,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:28,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204614462] [2024-10-11 19:36:28,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204614462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:28,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:28,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:36:28,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167580430] [2024-10-11 19:36:28,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:28,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:36:28,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:28,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:36:28,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:36:28,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-11 19:36:28,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 773 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:36:28,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:28,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-11 19:36:28,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:31,215 INFO L124 PetriNetUnfolderBase]: 16390/24797 cut-off events. [2024-10-11 19:36:31,215 INFO L125 PetriNetUnfolderBase]: For 99950/109791 co-relation queries the response was YES. [2024-10-11 19:36:31,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96694 conditions, 24797 events. 16390/24797 cut-off events. For 99950/109791 co-relation queries the response was YES. Maximal size of possible extension queue 1316. Compared 180861 event pairs, 1244 based on Foata normal form. 1541/25438 useless extension candidates. Maximal degree in co-relation 96657. Up to 8178 conditions per place. [2024-10-11 19:36:31,413 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 121 selfloop transitions, 14 changer transitions 22/181 dead transitions. [2024-10-11 19:36:31,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 181 transitions, 1789 flow [2024-10-11 19:36:31,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:36:31,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:36:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 212 transitions. [2024-10-11 19:36:31,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-11 19:36:31,415 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 773 flow. Second operand 6 states and 212 transitions. [2024-10-11 19:36:31,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 181 transitions, 1789 flow [2024-10-11 19:36:31,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 181 transitions, 1722 flow, removed 31 selfloop flow, removed 1 redundant places. [2024-10-11 19:36:31,500 INFO L231 Difference]: Finished difference. Result has 105 places, 86 transitions, 675 flow [2024-10-11 19:36:31,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=675, PETRI_PLACES=105, PETRI_TRANSITIONS=86} [2024-10-11 19:36:31,501 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 45 predicate places. [2024-10-11 19:36:31,501 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 86 transitions, 675 flow [2024-10-11 19:36:31,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:36:31,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:31,502 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] [2024-10-11 19:36:31,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 19:36:31,503 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:31,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:31,504 INFO L85 PathProgramCache]: Analyzing trace with hash -103597000, now seen corresponding path program 1 times [2024-10-11 19:36:31,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:31,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454106120] [2024-10-11 19:36:31,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:31,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:32,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:32,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454106120] [2024-10-11 19:36:32,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454106120] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:32,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:32,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:36:32,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392279155] [2024-10-11 19:36:32,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:32,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:36:32,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:32,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:36:32,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:36:32,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-10-11 19:36:32,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 86 transitions, 675 flow. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 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) [2024-10-11 19:36:32,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:32,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-10-11 19:36:32,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:35,378 INFO L124 PetriNetUnfolderBase]: 17393/29326 cut-off events. [2024-10-11 19:36:35,378 INFO L125 PetriNetUnfolderBase]: For 87282/95809 co-relation queries the response was YES. [2024-10-11 19:36:35,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108137 conditions, 29326 events. 17393/29326 cut-off events. For 87282/95809 co-relation queries the response was YES. Maximal size of possible extension queue 1913. Compared 257741 event pairs, 3130 based on Foata normal form. 971/27497 useless extension candidates. Maximal degree in co-relation 108097. Up to 9578 conditions per place. [2024-10-11 19:36:35,603 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 100 selfloop transitions, 26 changer transitions 24/182 dead transitions. [2024-10-11 19:36:35,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 182 transitions, 1682 flow [2024-10-11 19:36:35,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:36:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:36:35,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2024-10-11 19:36:35,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6344339622641509 [2024-10-11 19:36:35,607 INFO L175 Difference]: Start difference. First operand has 105 places, 86 transitions, 675 flow. Second operand 8 states and 269 transitions. [2024-10-11 19:36:35,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 182 transitions, 1682 flow [2024-10-11 19:36:35,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 182 transitions, 1575 flow, removed 39 selfloop flow, removed 10 redundant places. [2024-10-11 19:36:35,850 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 835 flow [2024-10-11 19:36:35,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=835, PETRI_PLACES=99, PETRI_TRANSITIONS=98} [2024-10-11 19:36:35,850 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 39 predicate places. [2024-10-11 19:36:35,850 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 835 flow [2024-10-11 19:36:35,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 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) [2024-10-11 19:36:35,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:35,851 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] [2024-10-11 19:36:35,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 19:36:35,851 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:35,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:35,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1216238244, now seen corresponding path program 2 times [2024-10-11 19:36:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:35,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078343501] [2024-10-11 19:36:35,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:35,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:36,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:36,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078343501] [2024-10-11 19:36:36,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078343501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:36,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:36,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:36:36,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789226776] [2024-10-11 19:36:36,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:36,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:36:36,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:36,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:36:36,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:36:36,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-11 19:36:36,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 835 flow. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 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) [2024-10-11 19:36:36,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:36,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-11 19:36:36,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:39,353 INFO L124 PetriNetUnfolderBase]: 20876/31682 cut-off events. [2024-10-11 19:36:39,353 INFO L125 PetriNetUnfolderBase]: For 150409/162819 co-relation queries the response was YES. [2024-10-11 19:36:39,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128820 conditions, 31682 events. 20876/31682 cut-off events. For 150409/162819 co-relation queries the response was YES. Maximal size of possible extension queue 1919. Compared 245262 event pairs, 1559 based on Foata normal form. 1857/32371 useless extension candidates. Maximal degree in co-relation 128782. Up to 12282 conditions per place. [2024-10-11 19:36:39,526 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 79 selfloop transitions, 18 changer transitions 65/181 dead transitions. [2024-10-11 19:36:39,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 181 transitions, 1869 flow [2024-10-11 19:36:39,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:36:39,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:36:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2024-10-11 19:36:39,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6253369272237197 [2024-10-11 19:36:39,527 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 835 flow. Second operand 7 states and 232 transitions. [2024-10-11 19:36:39,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 181 transitions, 1869 flow [2024-10-11 19:36:40,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 181 transitions, 1787 flow, removed 28 selfloop flow, removed 5 redundant places. [2024-10-11 19:36:40,022 INFO L231 Difference]: Finished difference. Result has 100 places, 72 transitions, 546 flow [2024-10-11 19:36:40,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=765, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=546, PETRI_PLACES=100, PETRI_TRANSITIONS=72} [2024-10-11 19:36:40,023 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 40 predicate places. [2024-10-11 19:36:40,023 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 72 transitions, 546 flow [2024-10-11 19:36:40,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 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) [2024-10-11 19:36:40,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:40,024 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] [2024-10-11 19:36:40,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 19:36:40,024 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:40,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:40,024 INFO L85 PathProgramCache]: Analyzing trace with hash -2117758615, now seen corresponding path program 1 times [2024-10-11 19:36:40,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:40,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206311383] [2024-10-11 19:36:40,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:40,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:40,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:40,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206311383] [2024-10-11 19:36:40,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206311383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:40,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:40,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:36:40,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339552928] [2024-10-11 19:36:40,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:40,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:36:40,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:40,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:36:40,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:36:40,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-10-11 19:36:40,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 72 transitions, 546 flow. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 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) [2024-10-11 19:36:40,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:40,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-10-11 19:36:40,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:41,565 INFO L124 PetriNetUnfolderBase]: 4826/9119 cut-off events. [2024-10-11 19:36:41,565 INFO L125 PetriNetUnfolderBase]: For 27698/29203 co-relation queries the response was YES. [2024-10-11 19:36:41,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32473 conditions, 9119 events. 4826/9119 cut-off events. For 27698/29203 co-relation queries the response was YES. Maximal size of possible extension queue 777. Compared 78298 event pairs, 873 based on Foata normal form. 130/8344 useless extension candidates. Maximal degree in co-relation 32436. Up to 3073 conditions per place. [2024-10-11 19:36:41,623 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 44 selfloop transitions, 12 changer transitions 34/123 dead transitions. [2024-10-11 19:36:41,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 123 transitions, 993 flow [2024-10-11 19:36:41,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:36:41,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:36:41,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 238 transitions. [2024-10-11 19:36:41,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5613207547169812 [2024-10-11 19:36:41,624 INFO L175 Difference]: Start difference. First operand has 100 places, 72 transitions, 546 flow. Second operand 8 states and 238 transitions. [2024-10-11 19:36:41,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 123 transitions, 993 flow [2024-10-11 19:36:41,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 123 transitions, 802 flow, removed 55 selfloop flow, removed 14 redundant places. [2024-10-11 19:36:41,880 INFO L231 Difference]: Finished difference. Result has 96 places, 70 transitions, 430 flow [2024-10-11 19:36:41,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=430, PETRI_PLACES=96, PETRI_TRANSITIONS=70} [2024-10-11 19:36:41,881 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 36 predicate places. [2024-10-11 19:36:41,881 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 70 transitions, 430 flow [2024-10-11 19:36:41,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 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) [2024-10-11 19:36:41,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:41,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:36:41,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 19:36:41,882 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:41,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:41,883 INFO L85 PathProgramCache]: Analyzing trace with hash -87146101, now seen corresponding path program 2 times [2024-10-11 19:36:41,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:41,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770805868] [2024-10-11 19:36:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:41,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat