./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5babed9169ff1f82a919f6310b42a42108866edd5cf3c99389faf03347963192 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:26:24,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:26:24,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:26:24,429 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:26:24,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:26:24,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:26:24,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:26:24,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:26:24,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:26:24,481 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:26:24,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:26:24,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:26:24,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:26:24,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:26:24,486 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:26:24,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:26:24,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:26:24,487 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:26:24,487 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:26:24,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:26:24,488 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:26:24,490 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:26:24,500 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:26:24,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:26:24,500 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:26:24,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:26:24,501 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:26:24,501 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:26:24,501 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:26:24,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:26:24,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:26:24,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:26:24,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:26:24,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:26:24,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:26:24,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:26:24,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:26:24,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:26:24,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:26:24,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:26:24,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:26:24,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:26:24,506 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5babed9169ff1f82a919f6310b42a42108866edd5cf3c99389faf03347963192 [2024-11-09 10:26:24,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:26:24,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:26:24,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:26:24,798 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:26:24,798 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:26:24,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i [2024-11-09 10:26:26,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:26:26,608 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:26:26,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008_tso.oepc.i [2024-11-09 10:26:26,632 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555a6c08c/1cdc6dc86e674603bfad1ae09e3ff1a6/FLAG0b2d1f085 [2024-11-09 10:26:26,888 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/555a6c08c/1cdc6dc86e674603bfad1ae09e3ff1a6 [2024-11-09 10:26:26,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:26:26,893 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:26:26,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:26:26,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:26:26,899 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:26:26,900 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:26:26" (1/1) ... [2024-11-09 10:26:26,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772063ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:26, skipping insertion in model container [2024-11-09 10:26:26,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:26:26" (1/1) ... [2024-11-09 10:26:26,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:26:27,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:26:27,517 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:26:27,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:26:27,681 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:26:27,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27 WrapperNode [2024-11-09 10:26:27,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:26:27,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:26:27,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:26:27,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:26:27,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,757 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 279 [2024-11-09 10:26:27,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:26:27,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:26:27,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:26:27,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:26:27,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,782 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,810 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 10:26:27,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:26:27,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:26:27,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:26:27,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:26:27,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (1/1) ... [2024-11-09 10:26:27,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:26:27,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:26:27,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 10:26:27,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 10:26:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:26:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:26:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 10:26:27,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 10:26:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 10:26:27,960 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 10:26:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 10:26:27,960 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 10:26:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 10:26:27,960 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 10:26:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:26:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:26:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:26:27,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:26:27,963 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:26:28,105 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:26:28,107 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:26:28,698 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:26:28,699 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:26:29,047 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:26:29,048 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:26:29,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:29 BoogieIcfgContainer [2024-11-09 10:26:29,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:26:29,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:26:29,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:26:29,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:26:29,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:26:26" (1/3) ... [2024-11-09 10:26:29,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8100cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:26:29, skipping insertion in model container [2024-11-09 10:26:29,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:26:27" (2/3) ... [2024-11-09 10:26:29,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8100cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:26:29, skipping insertion in model container [2024-11-09 10:26:29,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:26:29" (3/3) ... [2024-11-09 10:26:29,061 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_tso.oepc.i [2024-11-09 10:26:29,080 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:26:29,080 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 10:26:29,080 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:26:29,162 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:26:29,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 56 transitions, 128 flow [2024-11-09 10:26:29,250 INFO L124 PetriNetUnfolderBase]: 2/52 cut-off events. [2024-11-09 10:26:29,252 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:26:29,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 52 events. 2/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2024-11-09 10:26:29,262 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 56 transitions, 128 flow [2024-11-09 10:26:29,267 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 52 transitions, 116 flow [2024-11-09 10:26:29,284 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:26:29,294 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;@ea0dc1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:26:29,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 10:26:29,305 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:26:29,306 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-09 10:26:29,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:26:29,306 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:29,307 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:29,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:26:29,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1813919590, now seen corresponding path program 1 times [2024-11-09 10:26:29,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:29,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277018036] [2024-11-09 10:26:29,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:29,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:29,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:29,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:29,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277018036] [2024-11-09 10:26:29,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277018036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:29,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:29,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:26:29,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244406206] [2024-11-09 10:26:29,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:29,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:26:29,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:29,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:26:29,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:26:29,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 56 [2024-11-09 10:26:29,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:29,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:29,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 56 [2024-11-09 10:26:29,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:31,781 INFO L124 PetriNetUnfolderBase]: 5453/8045 cut-off events. [2024-11-09 10:26:31,782 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-09 10:26:31,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15627 conditions, 8045 events. 5453/8045 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 60364 event pairs, 643 based on Foata normal form. 432/8129 useless extension candidates. Maximal degree in co-relation 15615. Up to 6491 conditions per place. [2024-11-09 10:26:31,863 INFO L140 encePairwiseOnDemand]: 51/56 looper letters, 45 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-11-09 10:26:31,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 66 transitions, 241 flow [2024-11-09 10:26:31,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:26:31,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:26:31,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-11-09 10:26:31,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7202380952380952 [2024-11-09 10:26:31,878 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 116 flow. Second operand 3 states and 121 transitions. [2024-11-09 10:26:31,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 66 transitions, 241 flow [2024-11-09 10:26:31,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 10:26:31,887 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 108 flow [2024-11-09 10:26:31,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-09 10:26:31,897 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -4 predicate places. [2024-11-09 10:26:31,897 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 108 flow [2024-11-09 10:26:31,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:31,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:31,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:31,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:26:31,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:26:31,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:31,900 INFO L85 PathProgramCache]: Analyzing trace with hash 579502019, now seen corresponding path program 1 times [2024-11-09 10:26:31,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:31,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935444484] [2024-11-09 10:26:31,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:31,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:32,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:32,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935444484] [2024-11-09 10:26:32,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935444484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:32,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:32,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:26:32,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238263641] [2024-11-09 10:26:32,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:32,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:26:32,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:32,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:26:32,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:26:32,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 56 [2024-11-09 10:26:32,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:32,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:32,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 56 [2024-11-09 10:26:32,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:33,479 INFO L124 PetriNetUnfolderBase]: 4517/7091 cut-off events. [2024-11-09 10:26:33,479 INFO L125 PetriNetUnfolderBase]: For 282/282 co-relation queries the response was YES. [2024-11-09 10:26:33,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13693 conditions, 7091 events. 4517/7091 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 54169 event pairs, 773 based on Foata normal form. 0/7061 useless extension candidates. Maximal degree in co-relation 13683. Up to 5041 conditions per place. [2024-11-09 10:26:33,526 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 40 selfloop transitions, 2 changer transitions 2/63 dead transitions. [2024-11-09 10:26:33,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 63 transitions, 228 flow [2024-11-09 10:26:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:26:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:26:33,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-09 10:26:33,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-11-09 10:26:33,529 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 108 flow. Second operand 3 states and 114 transitions. [2024-11-09 10:26:33,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 63 transitions, 228 flow [2024-11-09 10:26:33,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 63 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:26:33,534 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-09 10:26:33,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-09 10:26:33,535 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -5 predicate places. [2024-11-09 10:26:33,535 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-09 10:26:33,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:33,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:33,536 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:33,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:26:33,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:26:33,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:33,538 INFO L85 PathProgramCache]: Analyzing trace with hash -827365833, now seen corresponding path program 1 times [2024-11-09 10:26:33,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:33,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171302156] [2024-11-09 10:26:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:33,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:33,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:33,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171302156] [2024-11-09 10:26:33,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171302156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:33,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:33,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:26:33,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678203145] [2024-11-09 10:26:33,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:33,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:26:33,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:33,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:26:33,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:26:33,645 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-09 10:26:33,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:33,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:33,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-09 10:26:33,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:34,877 INFO L124 PetriNetUnfolderBase]: 4013/6383 cut-off events. [2024-11-09 10:26:34,877 INFO L125 PetriNetUnfolderBase]: For 288/288 co-relation queries the response was YES. [2024-11-09 10:26:34,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12307 conditions, 6383 events. 4013/6383 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 48885 event pairs, 4013 based on Foata normal form. 180/6443 useless extension candidates. Maximal degree in co-relation 12297. Up to 5542 conditions per place. [2024-11-09 10:26:34,921 INFO L140 encePairwiseOnDemand]: 54/56 looper letters, 25 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-09 10:26:34,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 156 flow [2024-11-09 10:26:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:26:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:26:34,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-11-09 10:26:34,923 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095 [2024-11-09 10:26:34,924 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 94 transitions. [2024-11-09 10:26:34,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 156 flow [2024-11-09 10:26:34,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:26:34,927 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-09 10:26:34,928 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-09 10:26:34,929 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -7 predicate places. [2024-11-09 10:26:34,929 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-09 10:26:34,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:34,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:34,930 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:34,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:26:34,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:26:34,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:34,931 INFO L85 PathProgramCache]: Analyzing trace with hash -827364483, now seen corresponding path program 1 times [2024-11-09 10:26:34,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:34,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299188652] [2024-11-09 10:26:34,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:34,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:35,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:35,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299188652] [2024-11-09 10:26:35,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299188652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:35,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:35,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:26:35,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095668732] [2024-11-09 10:26:35,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:35,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:26:35,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:35,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:26:35,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:26:35,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-09 10:26:35,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:35,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:35,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-09 10:26:35,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:36,601 INFO L124 PetriNetUnfolderBase]: 4553/7157 cut-off events. [2024-11-09 10:26:36,602 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:26:36,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13585 conditions, 7157 events. 4553/7157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 55351 event pairs, 1025 based on Foata normal form. 0/7007 useless extension candidates. Maximal degree in co-relation 13579. Up to 2809 conditions per place. [2024-11-09 10:26:36,641 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 35 selfloop transitions, 2 changer transitions 56/110 dead transitions. [2024-11-09 10:26:36,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 110 transitions, 416 flow [2024-11-09 10:26:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:26:36,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:26:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 271 transitions. [2024-11-09 10:26:36,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6049107142857143 [2024-11-09 10:26:36,645 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 8 states and 271 transitions. [2024-11-09 10:26:36,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 110 transitions, 416 flow [2024-11-09 10:26:36,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 110 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:26:36,649 INFO L231 Difference]: Finished difference. Result has 66 places, 43 transitions, 111 flow [2024-11-09 10:26:36,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=111, PETRI_PLACES=66, PETRI_TRANSITIONS=43} [2024-11-09 10:26:36,650 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places. [2024-11-09 10:26:36,651 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 43 transitions, 111 flow [2024-11-09 10:26:36,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:36,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:36,651 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:36,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:26:36,651 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:26:36,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:36,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1023404418, now seen corresponding path program 1 times [2024-11-09 10:26:36,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:36,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928201685] [2024-11-09 10:26:36,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:36,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:37,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:37,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:37,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928201685] [2024-11-09 10:26:37,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928201685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:37,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:37,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:26:37,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262779341] [2024-11-09 10:26:37,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:37,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:26:37,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:37,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:26:37,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:26:37,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 56 [2024-11-09 10:26:37,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 43 transitions, 111 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:37,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:37,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 56 [2024-11-09 10:26:37,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:40,343 INFO L124 PetriNetUnfolderBase]: 12219/18947 cut-off events. [2024-11-09 10:26:40,343 INFO L125 PetriNetUnfolderBase]: For 3536/3536 co-relation queries the response was YES. [2024-11-09 10:26:40,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39303 conditions, 18947 events. 12219/18947 cut-off events. For 3536/3536 co-relation queries the response was YES. Maximal size of possible extension queue 896. Compared 142097 event pairs, 2003 based on Foata normal form. 416/19315 useless extension candidates. Maximal degree in co-relation 39291. Up to 8569 conditions per place. [2024-11-09 10:26:40,485 INFO L140 encePairwiseOnDemand]: 42/56 looper letters, 52 selfloop transitions, 11 changer transitions 67/144 dead transitions. [2024-11-09 10:26:40,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 144 transitions, 607 flow [2024-11-09 10:26:40,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:26:40,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:26:40,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2024-11-09 10:26:40,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5767857142857142 [2024-11-09 10:26:40,490 INFO L175 Difference]: Start difference. First operand has 66 places, 43 transitions, 111 flow. Second operand 10 states and 323 transitions. [2024-11-09 10:26:40,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 144 transitions, 607 flow [2024-11-09 10:26:40,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 144 transitions, 571 flow, removed 14 selfloop flow, removed 6 redundant places. [2024-11-09 10:26:40,668 INFO L231 Difference]: Finished difference. Result has 72 places, 52 transitions, 224 flow [2024-11-09 10:26:40,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=224, PETRI_PLACES=72, PETRI_TRANSITIONS=52} [2024-11-09 10:26:40,670 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2024-11-09 10:26:40,670 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 52 transitions, 224 flow [2024-11-09 10:26:40,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:40,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:40,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:26:40,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:26:40,672 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:26:40,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:40,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1742486631, now seen corresponding path program 1 times [2024-11-09 10:26:40,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:40,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227171294] [2024-11-09 10:26:40,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:40,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:41,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:41,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:41,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227171294] [2024-11-09 10:26:41,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227171294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:41,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:41,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:26:41,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951203948] [2024-11-09 10:26:41,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:41,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:26:41,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:41,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:26:41,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:26:41,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 56 [2024-11-09 10:26:41,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 52 transitions, 224 flow. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:41,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:41,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 56 [2024-11-09 10:26:41,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:43,356 INFO L124 PetriNetUnfolderBase]: 10618/17287 cut-off events. [2024-11-09 10:26:43,357 INFO L125 PetriNetUnfolderBase]: For 23381/23874 co-relation queries the response was YES. [2024-11-09 10:26:43,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53099 conditions, 17287 events. 10618/17287 cut-off events. For 23381/23874 co-relation queries the response was YES. Maximal size of possible extension queue 806. Compared 133037 event pairs, 3143 based on Foata normal form. 335/17345 useless extension candidates. Maximal degree in co-relation 53082. Up to 11983 conditions per place. [2024-11-09 10:26:43,591 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 53 selfloop transitions, 4 changer transitions 47/120 dead transitions. [2024-11-09 10:26:43,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 120 transitions, 799 flow [2024-11-09 10:26:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:26:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:26:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-11-09 10:26:43,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5790816326530612 [2024-11-09 10:26:43,595 INFO L175 Difference]: Start difference. First operand has 72 places, 52 transitions, 224 flow. Second operand 7 states and 227 transitions. [2024-11-09 10:26:43,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 120 transitions, 799 flow [2024-11-09 10:26:43,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 120 transitions, 780 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-09 10:26:43,923 INFO L231 Difference]: Finished difference. Result has 74 places, 55 transitions, 272 flow [2024-11-09 10:26:43,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=272, PETRI_PLACES=74, PETRI_TRANSITIONS=55} [2024-11-09 10:26:43,925 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 11 predicate places. [2024-11-09 10:26:43,925 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 55 transitions, 272 flow [2024-11-09 10:26:43,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:43,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:43,926 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] [2024-11-09 10:26:43,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:26:43,927 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:26:43,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:43,927 INFO L85 PathProgramCache]: Analyzing trace with hash 93326016, now seen corresponding path program 1 times [2024-11-09 10:26:43,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:43,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926070080] [2024-11-09 10:26:43,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:43,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:44,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:44,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926070080] [2024-11-09 10:26:44,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926070080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:44,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:44,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:26:44,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567555562] [2024-11-09 10:26:44,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:44,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:26:44,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:44,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:26:44,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:26:44,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 56 [2024-11-09 10:26:44,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 55 transitions, 272 flow. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:44,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:44,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 56 [2024-11-09 10:26:44,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:48,848 INFO L124 PetriNetUnfolderBase]: 26194/37863 cut-off events. [2024-11-09 10:26:48,851 INFO L125 PetriNetUnfolderBase]: For 50172/54417 co-relation queries the response was YES. [2024-11-09 10:26:49,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112421 conditions, 37863 events. 26194/37863 cut-off events. For 50172/54417 co-relation queries the response was YES. Maximal size of possible extension queue 1528. Compared 261849 event pairs, 4011 based on Foata normal form. 1274/37922 useless extension candidates. Maximal degree in co-relation 112400. Up to 20251 conditions per place. [2024-11-09 10:26:49,219 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 77 selfloop transitions, 6 changer transitions 0/101 dead transitions. [2024-11-09 10:26:49,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 101 transitions, 638 flow [2024-11-09 10:26:49,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:26:49,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:26:49,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2024-11-09 10:26:49,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6294642857142857 [2024-11-09 10:26:49,221 INFO L175 Difference]: Start difference. First operand has 74 places, 55 transitions, 272 flow. Second operand 4 states and 141 transitions. [2024-11-09 10:26:49,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 101 transitions, 638 flow [2024-11-09 10:26:49,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 101 transitions, 622 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-09 10:26:49,436 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 302 flow [2024-11-09 10:26:49,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-11-09 10:26:49,437 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2024-11-09 10:26:49,438 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 302 flow [2024-11-09 10:26:49,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:49,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:49,438 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] [2024-11-09 10:26:49,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:26:49,439 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:26:49,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:49,439 INFO L85 PathProgramCache]: Analyzing trace with hash 840694961, now seen corresponding path program 1 times [2024-11-09 10:26:49,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:49,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936408160] [2024-11-09 10:26:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:49,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:49,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:49,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936408160] [2024-11-09 10:26:49,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936408160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:49,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:49,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:26:49,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672173447] [2024-11-09 10:26:49,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:49,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:26:49,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:26:49,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:26:49,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 56 [2024-11-09 10:26:49,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:49,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:49,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 56 [2024-11-09 10:26:49,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:26:55,634 INFO L124 PetriNetUnfolderBase]: 23695/36959 cut-off events. [2024-11-09 10:26:55,634 INFO L125 PetriNetUnfolderBase]: For 53754/56264 co-relation queries the response was YES. [2024-11-09 10:26:55,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117293 conditions, 36959 events. 23695/36959 cut-off events. For 53754/56264 co-relation queries the response was YES. Maximal size of possible extension queue 1665. Compared 298406 event pairs, 10124 based on Foata normal form. 568/34652 useless extension candidates. Maximal degree in co-relation 117273. Up to 15413 conditions per place. [2024-11-09 10:26:56,142 INFO L140 encePairwiseOnDemand]: 51/56 looper letters, 88 selfloop transitions, 11 changer transitions 0/120 dead transitions. [2024-11-09 10:26:56,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 120 transitions, 806 flow [2024-11-09 10:26:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:26:56,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:26:56,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 231 transitions. [2024-11-09 10:26:56,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5892857142857143 [2024-11-09 10:26:56,144 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 302 flow. Second operand 7 states and 231 transitions. [2024-11-09 10:26:56,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 120 transitions, 806 flow [2024-11-09 10:26:56,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 120 transitions, 798 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-09 10:26:56,189 INFO L231 Difference]: Finished difference. Result has 80 places, 65 transitions, 392 flow [2024-11-09 10:26:56,189 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=392, PETRI_PLACES=80, PETRI_TRANSITIONS=65} [2024-11-09 10:26:56,190 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 17 predicate places. [2024-11-09 10:26:56,190 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 65 transitions, 392 flow [2024-11-09 10:26:56,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:56,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:26:56,191 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] [2024-11-09 10:26:56,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:26:56,191 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:26:56,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:26:56,192 INFO L85 PathProgramCache]: Analyzing trace with hash 127850953, now seen corresponding path program 1 times [2024-11-09 10:26:56,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:26:56,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393007108] [2024-11-09 10:26:56,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:26:56,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:26:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:26:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:26:56,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:26:56,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393007108] [2024-11-09 10:26:56,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393007108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:26:56,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:26:56,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:26:56,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686636860] [2024-11-09 10:26:56,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:26:56,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:26:56,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:26:56,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:26:56,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:26:56,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 56 [2024-11-09 10:26:56,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 65 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:26:56,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:26:56,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 56 [2024-11-09 10:26:56,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:27:02,430 INFO L124 PetriNetUnfolderBase]: 32312/46465 cut-off events. [2024-11-09 10:27:02,431 INFO L125 PetriNetUnfolderBase]: For 77784/86509 co-relation queries the response was YES. [2024-11-09 10:27:02,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151002 conditions, 46465 events. 32312/46465 cut-off events. For 77784/86509 co-relation queries the response was YES. Maximal size of possible extension queue 1850. Compared 324622 event pairs, 3146 based on Foata normal form. 1958/47093 useless extension candidates. Maximal degree in co-relation 150977. Up to 18125 conditions per place. [2024-11-09 10:27:03,027 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 97 selfloop transitions, 10 changer transitions 8/133 dead transitions. [2024-11-09 10:27:03,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 133 transitions, 935 flow [2024-11-09 10:27:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:27:03,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:27:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 181 transitions. [2024-11-09 10:27:03,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464285714285715 [2024-11-09 10:27:03,029 INFO L175 Difference]: Start difference. First operand has 80 places, 65 transitions, 392 flow. Second operand 5 states and 181 transitions. [2024-11-09 10:27:03,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 133 transitions, 935 flow [2024-11-09 10:27:03,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 133 transitions, 913 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-09 10:27:03,229 INFO L231 Difference]: Finished difference. Result has 85 places, 65 transitions, 385 flow [2024-11-09 10:27:03,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=385, PETRI_PLACES=85, PETRI_TRANSITIONS=65} [2024-11-09 10:27:03,230 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 22 predicate places. [2024-11-09 10:27:03,230 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 65 transitions, 385 flow [2024-11-09 10:27:03,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:27:03,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:27:03,231 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] [2024-11-09 10:27:03,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:27:03,231 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-09 10:27:03,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:27:03,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1549392262, now seen corresponding path program 1 times [2024-11-09 10:27:03,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:27:03,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120967739] [2024-11-09 10:27:03,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:27:03,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:27:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:27:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:27:03,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:27:03,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120967739] [2024-11-09 10:27:03,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120967739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:27:03,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:27:03,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:27:03,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644885678] [2024-11-09 10:27:03,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:27:03,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:27:03,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:27:03,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:27:03,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:27:03,898 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 56 [2024-11-09 10:27:03,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 65 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:27:03,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:27:03,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 56 [2024-11-09 10:27:03,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand