./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/mix008.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/mix008.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 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:30:27,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:30:27,744 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:30:27,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:30:27,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:30:27,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:30:27,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:30:27,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:30:27,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:30:27,787 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:30:27,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:30:27,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:30:27,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:30:27,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:30:27,789 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:30:27,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:30:27,791 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:30:27,791 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:30:27,791 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:30:27,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:30:27,792 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:30:27,796 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:30:27,796 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:30:27,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:30:27,797 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:30:27,797 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:30:27,797 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:30:27,797 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:30:27,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:30:27,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:30:27,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:30:27,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:30:27,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:30:27,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:30:27,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:30:27,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:30:27,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:30:27,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:30:27,800 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:30:27,800 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:30:27,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:30:27,801 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:30:27,801 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 [2024-10-11 19:30:28,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:30:28,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:30:28,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:30:28,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:30:28,104 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:30:28,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2024-10-11 19:30:29,471 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:30:29,744 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:30:29,745 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2024-10-11 19:30:29,763 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6fb42ba99/9b02ea96751e4615a1327d3d3c46edf6/FLAGfb5279c36 [2024-10-11 19:30:29,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6fb42ba99/9b02ea96751e4615a1327d3d3c46edf6 [2024-10-11 19:30:29,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:30:29,788 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:30:29,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:30:29,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:30:29,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:30:29,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:30:29" (1/1) ... [2024-10-11 19:30:29,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1156fa84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:29, skipping insertion in model container [2024-10-11 19:30:29,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:30:29" (1/1) ... [2024-10-11 19:30:29,849 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:30:30,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:30:30,281 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:30:30,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:30:30,439 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:30:30,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30 WrapperNode [2024-10-11 19:30:30,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:30:30,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:30:30,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:30:30,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:30:30,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,512 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 154 [2024-10-11 19:30:30,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:30:30,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:30:30,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:30:30,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:30:30,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,537 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,569 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 19:30:30,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,570 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:30:30,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:30:30,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:30:30,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:30:30,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (1/1) ... [2024-10-11 19:30:30,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:30:30,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:30:30,641 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 19:30:30,644 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 19:30:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:30:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:30:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:30:30,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:30:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:30:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:30:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:30:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:30:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 19:30:30,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 19:30:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:30:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:30:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:30:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:30:30,702 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 19:30:30,869 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:30:30,871 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:30:31,235 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:30:31,235 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:30:31,517 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:30:31,518 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:30:31,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:30:31 BoogieIcfgContainer [2024-10-11 19:30:31,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:30:31,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:30:31,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:30:31,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:30:31,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:30:29" (1/3) ... [2024-10-11 19:30:31,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a594a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:30:31, skipping insertion in model container [2024-10-11 19:30:31,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:30:30" (2/3) ... [2024-10-11 19:30:31,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a594a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:30:31, skipping insertion in model container [2024-10-11 19:30:31,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:30:31" (3/3) ... [2024-10-11 19:30:31,529 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008.opt.i [2024-10-11 19:30:31,548 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:30:31,549 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:30:31,549 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:30:31,619 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:30:31,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-11 19:30:31,697 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-11 19:30:31,697 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:30:31,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 105 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-10-11 19:30:31,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-11 19:30:31,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-11 19:30:31,720 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:30:31,726 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;@1bf9c343, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:30:31,727 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 19:30:31,740 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:30:31,740 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-11 19:30:31,740 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:30:31,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:30:31,741 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:30:31,742 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 19:30:31,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:30:31,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1776517179, now seen corresponding path program 1 times [2024-10-11 19:30:31,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:30:31,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144919359] [2024-10-11 19:30:31,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:30:31,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:30:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:30:32,270 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 19:30:32,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:30:32,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144919359] [2024-10-11 19:30:32,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144919359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:30:32,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:30:32,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:30:32,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769660920] [2024-10-11 19:30:32,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:30:32,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:30:32,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:30:32,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:30:32,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:30:32,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-10-11 19:30:32,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:32,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:30:32,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-10-11 19:30:32,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:30:32,848 INFO L124 PetriNetUnfolderBase]: 1175/2003 cut-off events. [2024-10-11 19:30:32,849 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:30:32,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3739 conditions, 2003 events. 1175/2003 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 14373 event pairs, 199 based on Foata normal form. 120/2089 useless extension candidates. Maximal degree in co-relation 3727. Up to 1361 conditions per place. [2024-10-11 19:30:32,873 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 30 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-10-11 19:30:32,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 196 flow [2024-10-11 19:30:32,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:30:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:30:32,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-10-11 19:30:32,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7454545454545455 [2024-10-11 19:30:32,888 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 123 transitions. [2024-10-11 19:30:32,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 196 flow [2024-10-11 19:30:32,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:30:32,897 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-11 19:30:32,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-10-11 19:30:32,905 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-11 19:30:32,906 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-11 19:30:32,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:32,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:30:32,907 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 19:30:32,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:30:32,908 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 19:30:32,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:30:32,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1913835471, now seen corresponding path program 1 times [2024-10-11 19:30:32,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:30:32,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126222967] [2024-10-11 19:30:32,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:30:32,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:30:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:30:32,983 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 19:30:32,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:30:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126222967] [2024-10-11 19:30:32,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126222967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:30:32,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:30:32,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:30:32,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274576503] [2024-10-11 19:30:32,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:30:32,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:30:32,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:30:32,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:30:32,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:30:32,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-10-11 19:30:32,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:32,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:30:32,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-10-11 19:30:32,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:30:33,324 INFO L124 PetriNetUnfolderBase]: 1027/1867 cut-off events. [2024-10-11 19:30:33,325 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-10-11 19:30:33,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3477 conditions, 1867 events. 1027/1867 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 13914 event pairs, 1027 based on Foata normal form. 60/1881 useless extension candidates. Maximal degree in co-relation 3467. Up to 1484 conditions per place. [2024-10-11 19:30:33,341 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 20 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-11 19:30:33,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 146 flow [2024-10-11 19:30:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:30:33,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:30:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-10-11 19:30:33,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-10-11 19:30:33,345 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 104 transitions. [2024-10-11 19:30:33,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 146 flow [2024-10-11 19:30:33,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:30:33,348 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-11 19:30:33,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-11 19:30:33,349 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-11 19:30:33,349 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-11 19:30:33,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:33,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:30:33,350 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 19:30:33,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:30:33,350 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 19:30:33,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:30:33,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1913836789, now seen corresponding path program 1 times [2024-10-11 19:30:33,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:30:33,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793941060] [2024-10-11 19:30:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:30:33,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:30:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:30:33,698 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 19:30:33,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:30:33,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793941060] [2024-10-11 19:30:33,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793941060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:30:33,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:30:33,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:30:33,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024853556] [2024-10-11 19:30:33,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:30:33,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:30:33,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:30:33,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:30:33,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:30:33,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-10-11 19:30:33,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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 19:30:33,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:30:33,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-10-11 19:30:33,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:30:37,698 INFO L124 PetriNetUnfolderBase]: 20301/30507 cut-off events. [2024-10-11 19:30:37,698 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:30:37,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58351 conditions, 30507 events. 20301/30507 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1730. Compared 237916 event pairs, 4674 based on Foata normal form. 0/29580 useless extension candidates. Maximal degree in co-relation 58345. Up to 10621 conditions per place. [2024-10-11 19:30:37,866 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 42 selfloop transitions, 9 changer transitions 91/157 dead transitions. [2024-10-11 19:30:37,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 157 transitions, 612 flow [2024-10-11 19:30:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:30:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:30:37,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 324 transitions. [2024-10-11 19:30:37,870 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-10-11 19:30:37,870 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 324 transitions. [2024-10-11 19:30:37,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 157 transitions, 612 flow [2024-10-11 19:30:37,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 157 transitions, 611 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:30:37,878 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 221 flow [2024-10-11 19:30:37,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=221, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2024-10-11 19:30:37,879 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-11 19:30:37,880 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 221 flow [2024-10-11 19:30:37,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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 19:30:37,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:30:37,881 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 19:30:37,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:30:37,881 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 19:30:37,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:30:37,882 INFO L85 PathProgramCache]: Analyzing trace with hash -229067602, now seen corresponding path program 1 times [2024-10-11 19:30:37,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:30:37,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448579569] [2024-10-11 19:30:37,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:30:37,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:30:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:30:38,059 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 19:30:38,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:30:38,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448579569] [2024-10-11 19:30:38,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448579569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:30:38,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:30:38,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:30:38,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607720078] [2024-10-11 19:30:38,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:30:38,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:30:38,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:30:38,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:30:38,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:30:38,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-11 19:30:38,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:38,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:30:38,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-11 19:30:38,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:30:40,556 INFO L124 PetriNetUnfolderBase]: 10061/17731 cut-off events. [2024-10-11 19:30:40,556 INFO L125 PetriNetUnfolderBase]: For 21418/22698 co-relation queries the response was YES. [2024-10-11 19:30:40,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50268 conditions, 17731 events. 10061/17731 cut-off events. For 21418/22698 co-relation queries the response was YES. Maximal size of possible extension queue 1123. Compared 158001 event pairs, 2525 based on Foata normal form. 653/16971 useless extension candidates. Maximal degree in co-relation 50253. Up to 7526 conditions per place. [2024-10-11 19:30:40,718 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 35 selfloop transitions, 3 changer transitions 41/104 dead transitions. [2024-10-11 19:30:40,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 104 transitions, 605 flow [2024-10-11 19:30:40,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:30:40,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:30:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 244 transitions. [2024-10-11 19:30:40,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6337662337662338 [2024-10-11 19:30:40,723 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 221 flow. Second operand 7 states and 244 transitions. [2024-10-11 19:30:40,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 104 transitions, 605 flow [2024-10-11 19:30:40,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 104 transitions, 535 flow, removed 17 selfloop flow, removed 4 redundant places. [2024-10-11 19:30:40,963 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 206 flow [2024-10-11 19:30:40,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=206, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2024-10-11 19:30:40,965 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-11 19:30:40,966 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 206 flow [2024-10-11 19:30:40,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:40,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:30:40,967 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:30:40,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:30:40,968 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 19:30:40,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:30:40,968 INFO L85 PathProgramCache]: Analyzing trace with hash 611903499, now seen corresponding path program 1 times [2024-10-11 19:30:40,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:30:40,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3395963] [2024-10-11 19:30:40,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:30:40,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:30:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:30:41,192 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 19:30:41,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:30:41,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3395963] [2024-10-11 19:30:41,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3395963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:30:41,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:30:41,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:30:41,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972904851] [2024-10-11 19:30:41,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:30:41,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:30:41,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:30:41,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:30:41,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:30:41,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-10-11 19:30:41,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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 19:30:41,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:30:41,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-10-11 19:30:41,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:30:43,546 INFO L124 PetriNetUnfolderBase]: 12092/19241 cut-off events. [2024-10-11 19:30:43,546 INFO L125 PetriNetUnfolderBase]: For 26651/26651 co-relation queries the response was YES. [2024-10-11 19:30:43,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55736 conditions, 19241 events. 12092/19241 cut-off events. For 26651/26651 co-relation queries the response was YES. Maximal size of possible extension queue 1013. Compared 149172 event pairs, 2201 based on Foata normal form. 380/19513 useless extension candidates. Maximal degree in co-relation 55718. Up to 8070 conditions per place. [2024-10-11 19:30:43,696 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 62 selfloop transitions, 13 changer transitions 70/160 dead transitions. [2024-10-11 19:30:43,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 160 transitions, 969 flow [2024-10-11 19:30:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:30:43,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:30:43,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 344 transitions. [2024-10-11 19:30:43,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6254545454545455 [2024-10-11 19:30:43,699 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 206 flow. Second operand 10 states and 344 transitions. [2024-10-11 19:30:43,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 160 transitions, 969 flow [2024-10-11 19:30:43,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 160 transitions, 933 flow, removed 14 selfloop flow, removed 6 redundant places. [2024-10-11 19:30:43,945 INFO L231 Difference]: Finished difference. Result has 77 places, 57 transitions, 295 flow [2024-10-11 19:30:43,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=295, PETRI_PLACES=77, PETRI_TRANSITIONS=57} [2024-10-11 19:30:43,947 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-10-11 19:30:43,948 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 57 transitions, 295 flow [2024-10-11 19:30:43,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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 19:30:43,949 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:30:43,949 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 19:30:43,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:30:43,949 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 19:30:43,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:30:43,951 INFO L85 PathProgramCache]: Analyzing trace with hash 736359084, now seen corresponding path program 1 times [2024-10-11 19:30:43,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:30:43,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243011088] [2024-10-11 19:30:43,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:30:43,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:30:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:30:44,160 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 19:30:44,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:30:44,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243011088] [2024-10-11 19:30:44,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243011088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:30:44,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:30:44,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:30:44,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697584634] [2024-10-11 19:30:44,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:30:44,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:30:44,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:30:44,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:30:44,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:30:44,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-10-11 19:30:44,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 57 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 19:30:44,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:30:44,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-10-11 19:30:44,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:30:46,167 INFO L124 PetriNetUnfolderBase]: 10968/17666 cut-off events. [2024-10-11 19:30:46,167 INFO L125 PetriNetUnfolderBase]: For 40301/40301 co-relation queries the response was YES. [2024-10-11 19:30:46,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57662 conditions, 17666 events. 10968/17666 cut-off events. For 40301/40301 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 138164 event pairs, 2038 based on Foata normal form. 342/17829 useless extension candidates. Maximal degree in co-relation 57640. Up to 5706 conditions per place. [2024-10-11 19:30:46,278 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 60 selfloop transitions, 12 changer transitions 68/155 dead transitions. [2024-10-11 19:30:46,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 155 transitions, 1150 flow [2024-10-11 19:30:46,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:30:46,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:30:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 320 transitions. [2024-10-11 19:30:46,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5818181818181818 [2024-10-11 19:30:46,281 INFO L175 Difference]: Start difference. First operand has 77 places, 57 transitions, 295 flow. Second operand 10 states and 320 transitions. [2024-10-11 19:30:46,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 155 transitions, 1150 flow [2024-10-11 19:30:46,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 155 transitions, 1078 flow, removed 36 selfloop flow, removed 5 redundant places. [2024-10-11 19:30:46,560 INFO L231 Difference]: Finished difference. Result has 84 places, 64 transitions, 412 flow [2024-10-11 19:30:46,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=412, PETRI_PLACES=84, PETRI_TRANSITIONS=64} [2024-10-11 19:30:46,561 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2024-10-11 19:30:46,561 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 64 transitions, 412 flow [2024-10-11 19:30:46,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 19:30:46,563 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:30:46,563 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] [2024-10-11 19:30:46,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:30:46,564 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 19:30:46,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:30:46,564 INFO L85 PathProgramCache]: Analyzing trace with hash 663365011, now seen corresponding path program 1 times [2024-10-11 19:30:46,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:30:46,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801955983] [2024-10-11 19:30:46,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:30:46,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:30:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:30:46,779 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 19:30:46,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:30:46,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801955983] [2024-10-11 19:30:46,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801955983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:30:46,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:30:46,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:30:46,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750909003] [2024-10-11 19:30:46,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:30:46,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:30:46,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:30:46,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:30:46,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:30:46,797 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-10-11 19:30:46,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 64 transitions, 412 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:46,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:30:46,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-10-11 19:30:46,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:30:50,138 INFO L124 PetriNetUnfolderBase]: 19638/30083 cut-off events. [2024-10-11 19:30:50,139 INFO L125 PetriNetUnfolderBase]: For 57661/64208 co-relation queries the response was YES. [2024-10-11 19:30:50,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84350 conditions, 30083 events. 19638/30083 cut-off events. For 57661/64208 co-relation queries the response was YES. Maximal size of possible extension queue 1404. Compared 229293 event pairs, 2922 based on Foata normal form. 1874/30768 useless extension candidates. Maximal degree in co-relation 84322. Up to 15831 conditions per place. [2024-10-11 19:30:50,400 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 58 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2024-10-11 19:30:50,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 98 transitions, 704 flow [2024-10-11 19:30:50,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:30:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:30:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-10-11 19:30:50,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727 [2024-10-11 19:30:50,401 INFO L175 Difference]: Start difference. First operand has 84 places, 64 transitions, 412 flow. Second operand 4 states and 148 transitions. [2024-10-11 19:30:50,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 98 transitions, 704 flow [2024-10-11 19:30:50,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 98 transitions, 682 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-10-11 19:30:50,847 INFO L231 Difference]: Finished difference. Result has 79 places, 69 transitions, 440 flow [2024-10-11 19:30:50,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=440, PETRI_PLACES=79, PETRI_TRANSITIONS=69} [2024-10-11 19:30:50,848 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-10-11 19:30:50,849 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 69 transitions, 440 flow [2024-10-11 19:30:50,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:50,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:30:50,849 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] [2024-10-11 19:30:50,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:30:50,849 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 19:30:50,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:30:50,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1528578155, now seen corresponding path program 1 times [2024-10-11 19:30:50,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:30:50,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817216091] [2024-10-11 19:30:50,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:30:50,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:30:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:30:51,074 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 19:30:51,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:30:51,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817216091] [2024-10-11 19:30:51,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817216091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:30:51,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:30:51,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:30:51,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591567273] [2024-10-11 19:30:51,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:30:51,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:30:51,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:30:51,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:30:51,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:30:51,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-10-11 19:30:51,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 69 transitions, 440 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:51,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:30:51,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-10-11 19:30:51,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:30:55,683 INFO L124 PetriNetUnfolderBase]: 27390/43505 cut-off events. [2024-10-11 19:30:55,683 INFO L125 PetriNetUnfolderBase]: For 91142/92495 co-relation queries the response was YES. [2024-10-11 19:30:55,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142157 conditions, 43505 events. 27390/43505 cut-off events. For 91142/92495 co-relation queries the response was YES. Maximal size of possible extension queue 2047. Compared 370718 event pairs, 8814 based on Foata normal form. 642/40554 useless extension candidates. Maximal degree in co-relation 142129. Up to 15793 conditions per place. [2024-10-11 19:30:56,014 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 109 selfloop transitions, 35 changer transitions 8/172 dead transitions. [2024-10-11 19:30:56,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 172 transitions, 1301 flow [2024-10-11 19:30:56,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:30:56,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:30:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2024-10-11 19:30:56,217 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5981818181818181 [2024-10-11 19:30:56,218 INFO L175 Difference]: Start difference. First operand has 79 places, 69 transitions, 440 flow. Second operand 10 states and 329 transitions. [2024-10-11 19:30:56,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 172 transitions, 1301 flow [2024-10-11 19:30:56,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 172 transitions, 1279 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-10-11 19:30:56,469 INFO L231 Difference]: Finished difference. Result has 92 places, 91 transitions, 817 flow [2024-10-11 19:30:56,469 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=817, PETRI_PLACES=92, PETRI_TRANSITIONS=91} [2024-10-11 19:30:56,470 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 30 predicate places. [2024-10-11 19:30:56,470 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 817 flow [2024-10-11 19:30:56,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:56,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:30:56,470 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] [2024-10-11 19:30:56,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:30:56,471 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 19:30:56,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:30:56,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1246863095, now seen corresponding path program 1 times [2024-10-11 19:30:56,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:30:56,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332372333] [2024-10-11 19:30:56,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:30:56,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:30:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:30:56,669 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 19:30:56,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:30:56,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332372333] [2024-10-11 19:30:56,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332372333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:30:56,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:30:56,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:30:56,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349807394] [2024-10-11 19:30:56,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:30:56,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:30:56,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:30:56,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:30:56,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:30:56,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-10-11 19:30:56,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 91 transitions, 817 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:30:56,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:30:56,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-10-11 19:30:56,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:31:01,826 INFO L124 PetriNetUnfolderBase]: 28052/42920 cut-off events. [2024-10-11 19:31:01,826 INFO L125 PetriNetUnfolderBase]: For 89279/99217 co-relation queries the response was YES. [2024-10-11 19:31:02,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135568 conditions, 42920 events. 28052/42920 cut-off events. For 89279/99217 co-relation queries the response was YES. Maximal size of possible extension queue 1950. Compared 337029 event pairs, 2597 based on Foata normal form. 2820/44531 useless extension candidates. Maximal degree in co-relation 135534. Up to 17217 conditions per place. [2024-10-11 19:31:02,115 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 85 selfloop transitions, 10 changer transitions 11/150 dead transitions. [2024-10-11 19:31:02,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 150 transitions, 1410 flow [2024-10-11 19:31:02,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:31:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:31:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-10-11 19:31:02,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872727272727273 [2024-10-11 19:31:02,117 INFO L175 Difference]: Start difference. First operand has 92 places, 91 transitions, 817 flow. Second operand 5 states and 189 transitions. [2024-10-11 19:31:02,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 150 transitions, 1410 flow [2024-10-11 19:31:02,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 150 transitions, 1390 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-10-11 19:31:02,436 INFO L231 Difference]: Finished difference. Result has 98 places, 87 transitions, 757 flow [2024-10-11 19:31:02,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=757, PETRI_PLACES=98, PETRI_TRANSITIONS=87} [2024-10-11 19:31:02,437 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 36 predicate places. [2024-10-11 19:31:02,437 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 87 transitions, 757 flow [2024-10-11 19:31:02,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:02,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:31:02,437 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] [2024-10-11 19:31:02,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:31:02,438 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 19:31:02,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:31:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1931955776, now seen corresponding path program 1 times [2024-10-11 19:31:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:31:02,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219991085] [2024-10-11 19:31:02,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:31:02,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:31:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:31:02,672 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 19:31:02,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:31:02,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219991085] [2024-10-11 19:31:02,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219991085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:31:02,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:31:02,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:31:02,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537835430] [2024-10-11 19:31:02,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:31:02,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:31:02,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:31:02,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:31:02,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:31:02,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-10-11 19:31:02,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 87 transitions, 757 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:02,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:31:02,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-10-11 19:31:02,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:31:07,637 INFO L124 PetriNetUnfolderBase]: 23515/41150 cut-off events. [2024-10-11 19:31:07,638 INFO L125 PetriNetUnfolderBase]: For 105052/111920 co-relation queries the response was YES. [2024-10-11 19:31:07,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138638 conditions, 41150 events. 23515/41150 cut-off events. For 105052/111920 co-relation queries the response was YES. Maximal size of possible extension queue 2510. Compared 398177 event pairs, 11429 based on Foata normal form. 1036/38294 useless extension candidates. Maximal degree in co-relation 138600. Up to 14323 conditions per place. [2024-10-11 19:31:07,992 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 54 selfloop transitions, 10 changer transitions 18/127 dead transitions. [2024-10-11 19:31:07,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 127 transitions, 1166 flow [2024-10-11 19:31:07,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:31:07,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:31:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 177 transitions. [2024-10-11 19:31:07,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436363636363637 [2024-10-11 19:31:07,993 INFO L175 Difference]: Start difference. First operand has 98 places, 87 transitions, 757 flow. Second operand 5 states and 177 transitions. [2024-10-11 19:31:07,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 127 transitions, 1166 flow [2024-10-11 19:31:08,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 127 transitions, 1139 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-10-11 19:31:08,509 INFO L231 Difference]: Finished difference. Result has 97 places, 89 transitions, 797 flow [2024-10-11 19:31:08,509 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=797, PETRI_PLACES=97, PETRI_TRANSITIONS=89} [2024-10-11 19:31:08,510 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 35 predicate places. [2024-10-11 19:31:08,510 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 89 transitions, 797 flow [2024-10-11 19:31:08,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:08,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:31:08,510 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] [2024-10-11 19:31:08,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:31:08,511 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 19:31:08,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:31:08,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1751135024, now seen corresponding path program 2 times [2024-10-11 19:31:08,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:31:08,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731821650] [2024-10-11 19:31:08,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:31:08,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:31:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:31:08,828 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 19:31:08,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:31:08,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731821650] [2024-10-11 19:31:08,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731821650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:31:08,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:31:08,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:31:08,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722813363] [2024-10-11 19:31:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:31:08,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:31:08,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:31:08,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:31:08,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:31:08,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-10-11 19:31:08,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 89 transitions, 797 flow. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:31:08,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:31:08,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-10-11 19:31:08,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand