./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/mix053_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.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 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:32:54,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:32:54,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:32:54,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:32:54,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:32:54,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:32:54,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:32:54,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:32:54,593 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:32:54,593 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:32:54,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:32:54,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:32:54,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:32:54,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:32:54,599 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:32:54,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:32:54,599 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:32:54,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:32:54,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:32:54,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:32:54,600 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:32:54,600 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:32:54,600 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:32:54,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:32:54,601 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:32:54,601 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:32:54,601 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:32:54,601 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:32:54,601 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:32:54,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:32:54,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:32:54,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:32:54,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:32:54,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:32:54,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:32:54,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:32:54,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:32:54,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:32:54,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:32:54,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:32:54,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:32:54,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:32:54,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 [2024-10-14 19:32:54,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:32:54,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:32:54,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:32:54,834 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:32:54,834 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:32:54,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i [2024-10-14 19:32:56,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:32:56,374 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:32:56,375 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i [2024-10-14 19:32:56,387 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01003fff8/126acd49a2594e369d90d56d7b4fd216/FLAG889198646 [2024-10-14 19:32:56,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01003fff8/126acd49a2594e369d90d56d7b4fd216 [2024-10-14 19:32:56,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:32:56,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:32:56,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:32:56,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:32:56,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:32:56,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:56,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3362a4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56, skipping insertion in model container [2024-10-14 19:32:56,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:56,446 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:32:56,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:32:56,737 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:32:56,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:32:56,867 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:32:56,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56 WrapperNode [2024-10-14 19:32:56,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:32:56,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:32:56,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:32:56,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:32:56,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:56,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:56,998 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 130 [2024-10-14 19:32:56,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:32:56,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:32:56,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:32:56,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:32:57,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,068 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]. [2024-10-14 19:32:57,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:32:57,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:32:57,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:32:57,115 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:32:57,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (1/1) ... [2024-10-14 19:32:57,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:32:57,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:32:57,153 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) [2024-10-14 19:32:57,162 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 [2024-10-14 19:32:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:32:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:32:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 19:32:57,190 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 19:32:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 19:32:57,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 19:32:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 19:32:57,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 19:32:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-14 19:32:57,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-14 19:32:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:32:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:32:57,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:32:57,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:32:57,193 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:32:57,293 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:32:57,295 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:32:57,580 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:32:57,581 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:32:57,756 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:32:57,757 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:32:57,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:32:57 BoogieIcfgContainer [2024-10-14 19:32:57,758 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:32:57,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:32:57,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:32:57,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:32:57,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:32:56" (1/3) ... [2024-10-14 19:32:57,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351db32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:32:57, skipping insertion in model container [2024-10-14 19:32:57,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:32:56" (2/3) ... [2024-10-14 19:32:57,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351db32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:32:57, skipping insertion in model container [2024-10-14 19:32:57,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:32:57" (3/3) ... [2024-10-14 19:32:57,766 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053_power.oepc_pso.oepc_rmo.oepc.i [2024-10-14 19:32:57,785 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:32:57,785 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-14 19:32:57,785 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:32:57,859 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:32:57,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2024-10-14 19:32:57,905 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2024-10-14 19:32:57,905 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:32:57,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-10-14 19:32:57,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2024-10-14 19:32:57,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2024-10-14 19:32:57,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:32:57,921 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;@9869887, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:32:57,921 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 19:32:57,923 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:32:57,923 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-14 19:32:57,923 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:32:57,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:32:57,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-14 19:32:57,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:32:57,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:32:57,928 INFO L85 PathProgramCache]: Analyzing trace with hash 12528064, now seen corresponding path program 1 times [2024-10-14 19:32:57,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:32:57,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094336661] [2024-10-14 19:32:57,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:32:57,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:32:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:32:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:32:58,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:32:58,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094336661] [2024-10-14 19:32:58,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094336661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:32:58,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:32:58,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:32:58,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997028063] [2024-10-14 19:32:58,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:32:58,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:32:58,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:32:58,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:32:58,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:32:58,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-14 19:32:58,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-10-14 19:32:58,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:32:58,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-14 19:32:58,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:32:59,157 INFO L124 PetriNetUnfolderBase]: 3311/5456 cut-off events. [2024-10-14 19:32:59,158 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-14 19:32:59,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10136 conditions, 5456 events. 3311/5456 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 39538 event pairs, 593 based on Foata normal form. 288/5705 useless extension candidates. Maximal degree in co-relation 10124. Up to 3661 conditions per place. [2024-10-14 19:32:59,190 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 41 selfloop transitions, 2 changer transitions 2/65 dead transitions. [2024-10-14 19:32:59,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 65 transitions, 241 flow [2024-10-14 19:32:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:32:59,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:32:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2024-10-14 19:32:59,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2024-10-14 19:32:59,203 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 122 transitions. [2024-10-14 19:32:59,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 65 transitions, 241 flow [2024-10-14 19:32:59,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 65 transitions, 234 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:32:59,209 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2024-10-14 19:32:59,212 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-14 19:32:59,215 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-10-14 19:32:59,217 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2024-10-14 19:32:59,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-10-14 19:32:59,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:32:59,217 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:32:59,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:32:59,218 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:32:59,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:32:59,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1557375222, now seen corresponding path program 1 times [2024-10-14 19:32:59,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:32:59,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805648988] [2024-10-14 19:32:59,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:32:59,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:32:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:32:59,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:32:59,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:32:59,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805648988] [2024-10-14 19:32:59,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805648988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:32:59,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:32:59,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:32:59,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499522063] [2024-10-14 19:32:59,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:32:59,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:32:59,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:32:59,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:32:59,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:32:59,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 53 [2024-10-14 19:32:59,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-14 19:32:59,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:32:59,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 53 [2024-10-14 19:32:59,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:32:59,972 INFO L124 PetriNetUnfolderBase]: 2903/4911 cut-off events. [2024-10-14 19:32:59,972 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-14 19:32:59,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9315 conditions, 4911 events. 2903/4911 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 34775 event pairs, 2903 based on Foata normal form. 144/4916 useless extension candidates. Maximal degree in co-relation 9305. Up to 4016 conditions per place. [2024-10-14 19:33:00,004 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 22 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-10-14 19:33:00,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 146 flow [2024-10-14 19:33:00,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:33:00,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:33:00,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-10-14 19:33:00,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5911949685534591 [2024-10-14 19:33:00,007 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 94 transitions. [2024-10-14 19:33:00,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 146 flow [2024-10-14 19:33:00,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:33:00,009 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-10-14 19:33:00,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-10-14 19:33:00,010 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-10-14 19:33:00,011 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-10-14 19:33:00,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-14 19:33:00,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:33:00,011 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:33:00,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:33:00,012 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:33:00,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:33:00,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1557373973, now seen corresponding path program 1 times [2024-10-14 19:33:00,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:33:00,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988582169] [2024-10-14 19:33:00,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:33:00,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:33:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:33:00,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:33:00,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:33:00,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988582169] [2024-10-14 19:33:00,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988582169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:33:00,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:33:00,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:33:00,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009681126] [2024-10-14 19:33:00,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:33:00,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:33:00,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:33:00,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:33:00,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:33:00,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-10-14 19:33:00,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-10-14 19:33:00,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:33:00,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-10-14 19:33:00,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:33:04,221 INFO L124 PetriNetUnfolderBase]: 30055/43449 cut-off events. [2024-10-14 19:33:04,221 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:33:04,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84393 conditions, 43449 events. 30055/43449 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1946. Compared 313073 event pairs, 6891 based on Foata normal form. 0/42305 useless extension candidates. Maximal degree in co-relation 84387. Up to 15129 conditions per place. [2024-10-14 19:33:04,405 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 46 selfloop transitions, 7 changer transitions 97/162 dead transitions. [2024-10-14 19:33:04,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 162 transitions, 638 flow [2024-10-14 19:33:04,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 19:33:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 19:33:04,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 305 transitions. [2024-10-14 19:33:04,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.639412997903564 [2024-10-14 19:33:04,410 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 9 states and 305 transitions. [2024-10-14 19:33:04,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 162 transitions, 638 flow [2024-10-14 19:33:04,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 162 transitions, 637 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:33:04,415 INFO L231 Difference]: Finished difference. Result has 68 places, 47 transitions, 189 flow [2024-10-14 19:33:04,415 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=189, PETRI_PLACES=68, PETRI_TRANSITIONS=47} [2024-10-14 19:33:04,416 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 8 predicate places. [2024-10-14 19:33:04,417 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 47 transitions, 189 flow [2024-10-14 19:33:04,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-10-14 19:33:04,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:33:04,417 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:33:04,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:33:04,417 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:33:04,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:33:04,418 INFO L85 PathProgramCache]: Analyzing trace with hash -32738092, now seen corresponding path program 1 times [2024-10-14 19:33:04,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:33:04,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501164426] [2024-10-14 19:33:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:33:04,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:33:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:33:04,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:33:04,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:33:04,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501164426] [2024-10-14 19:33:04,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501164426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:33:04,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:33:04,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:33:04,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818223017] [2024-10-14 19:33:04,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:33:04,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:33:04,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:33:04,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:33:04,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:33:04,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-10-14 19:33:04,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 47 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-10-14 19:33:04,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:33:04,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-10-14 19:33:04,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:33:08,166 INFO L124 PetriNetUnfolderBase]: 22992/33977 cut-off events. [2024-10-14 19:33:08,166 INFO L125 PetriNetUnfolderBase]: For 48148/48394 co-relation queries the response was YES. [2024-10-14 19:33:08,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97769 conditions, 33977 events. 22992/33977 cut-off events. For 48148/48394 co-relation queries the response was YES. Maximal size of possible extension queue 1544. Compared 244854 event pairs, 3634 based on Foata normal form. 889/34794 useless extension candidates. Maximal degree in co-relation 97754. Up to 14004 conditions per place. [2024-10-14 19:33:08,393 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 62 selfloop transitions, 11 changer transitions 92/177 dead transitions. [2024-10-14 19:33:08,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 177 transitions, 1115 flow [2024-10-14 19:33:08,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:33:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:33:08,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 325 transitions. [2024-10-14 19:33:08,396 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6132075471698113 [2024-10-14 19:33:08,396 INFO L175 Difference]: Start difference. First operand has 68 places, 47 transitions, 189 flow. Second operand 10 states and 325 transitions. [2024-10-14 19:33:08,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 177 transitions, 1115 flow [2024-10-14 19:33:08,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 177 transitions, 985 flow, removed 31 selfloop flow, removed 4 redundant places. [2024-10-14 19:33:08,716 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 287 flow [2024-10-14 19:33:08,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=287, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2024-10-14 19:33:08,717 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 15 predicate places. [2024-10-14 19:33:08,717 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 287 flow [2024-10-14 19:33:08,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-10-14 19:33:08,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:33:08,717 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:33:08,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:33:08,717 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:33:08,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:33:08,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1213911798, now seen corresponding path program 1 times [2024-10-14 19:33:08,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:33:08,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903361407] [2024-10-14 19:33:08,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:33:08,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:33:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:33:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:33:08,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:33:08,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903361407] [2024-10-14 19:33:08,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903361407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:33:08,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:33:08,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:33:08,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125169600] [2024-10-14 19:33:08,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:33:08,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:33:08,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:33:08,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:33:08,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:33:08,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-10-14 19:33:08,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 287 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-10-14 19:33:08,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:33:08,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-10-14 19:33:08,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:33:12,646 INFO L124 PetriNetUnfolderBase]: 21434/31667 cut-off events. [2024-10-14 19:33:12,646 INFO L125 PetriNetUnfolderBase]: For 83687/83766 co-relation queries the response was YES. [2024-10-14 19:33:12,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100172 conditions, 31667 events. 21434/31667 cut-off events. For 83687/83766 co-relation queries the response was YES. Maximal size of possible extension queue 1393. Compared 224884 event pairs, 4435 based on Foata normal form. 727/32350 useless extension candidates. Maximal degree in co-relation 100150. Up to 13415 conditions per place. [2024-10-14 19:33:12,989 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 67 selfloop transitions, 17 changer transitions 78/174 dead transitions. [2024-10-14 19:33:12,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 174 transitions, 1165 flow [2024-10-14 19:33:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:33:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:33:12,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2024-10-14 19:33:12,991 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6094339622641509 [2024-10-14 19:33:12,991 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 287 flow. Second operand 10 states and 323 transitions. [2024-10-14 19:33:12,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 174 transitions, 1165 flow [2024-10-14 19:33:13,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 174 transitions, 1137 flow, removed 14 selfloop flow, removed 0 redundant places. [2024-10-14 19:33:13,460 INFO L231 Difference]: Finished difference. Result has 86 places, 61 transitions, 421 flow [2024-10-14 19:33:13,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=421, PETRI_PLACES=86, PETRI_TRANSITIONS=61} [2024-10-14 19:33:13,461 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 26 predicate places. [2024-10-14 19:33:13,461 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 61 transitions, 421 flow [2024-10-14 19:33:13,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-10-14 19:33:13,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:33:13,462 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:33:13,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:33:13,462 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:33:13,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:33:13,462 INFO L85 PathProgramCache]: Analyzing trace with hash -622678093, now seen corresponding path program 1 times [2024-10-14 19:33:13,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:33:13,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720904082] [2024-10-14 19:33:13,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:33:13,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:33:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:33:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:33:13,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:33:13,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720904082] [2024-10-14 19:33:13,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720904082] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:33:13,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:33:13,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:33:13,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939532210] [2024-10-14 19:33:13,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:33:13,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:33:13,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:33:13,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:33:13,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:33:13,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-14 19:33:13,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 61 transitions, 421 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:33:13,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:33:13,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-14 19:33:13,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:33:18,802 INFO L124 PetriNetUnfolderBase]: 33985/50705 cut-off events. [2024-10-14 19:33:18,803 INFO L125 PetriNetUnfolderBase]: For 84531/87747 co-relation queries the response was YES. [2024-10-14 19:33:19,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133548 conditions, 50705 events. 33985/50705 cut-off events. For 84531/87747 co-relation queries the response was YES. Maximal size of possible extension queue 2167. Compared 383509 event pairs, 5783 based on Foata normal form. 2419/51528 useless extension candidates. Maximal degree in co-relation 133516. Up to 27473 conditions per place. [2024-10-14 19:33:19,407 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 61 selfloop transitions, 6 changer transitions 0/97 dead transitions. [2024-10-14 19:33:19,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 97 transitions, 685 flow [2024-10-14 19:33:19,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:33:19,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 19:33:19,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-10-14 19:33:19,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6509433962264151 [2024-10-14 19:33:19,408 INFO L175 Difference]: Start difference. First operand has 86 places, 61 transitions, 421 flow. Second operand 4 states and 138 transitions. [2024-10-14 19:33:19,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 97 transitions, 685 flow [2024-10-14 19:33:19,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 97 transitions, 633 flow, removed 26 selfloop flow, removed 10 redundant places. [2024-10-14 19:33:19,964 INFO L231 Difference]: Finished difference. Result has 75 places, 66 transitions, 423 flow [2024-10-14 19:33:19,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=423, PETRI_PLACES=75, PETRI_TRANSITIONS=66} [2024-10-14 19:33:19,965 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 15 predicate places. [2024-10-14 19:33:19,965 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 66 transitions, 423 flow [2024-10-14 19:33:19,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:33:19,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:33:19,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:33:19,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:33:19,966 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:33:19,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:33:19,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1086440315, now seen corresponding path program 1 times [2024-10-14 19:33:19,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:33:19,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385879398] [2024-10-14 19:33:19,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:33:19,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:33:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:33:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:33:20,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:33:20,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385879398] [2024-10-14 19:33:20,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385879398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:33:20,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:33:20,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:33:20,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537235685] [2024-10-14 19:33:20,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:33:20,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:33:20,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:33:20,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:33:20,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:33:20,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-10-14 19:33:20,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 66 transitions, 423 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-14 19:33:20,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:33:20,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-10-14 19:33:20,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:33:27,785 INFO L124 PetriNetUnfolderBase]: 44259/66756 cut-off events. [2024-10-14 19:33:27,785 INFO L125 PetriNetUnfolderBase]: For 143246/146131 co-relation queries the response was YES. [2024-10-14 19:33:28,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206846 conditions, 66756 events. 44259/66756 cut-off events. For 143246/146131 co-relation queries the response was YES. Maximal size of possible extension queue 3086. Compared 544575 event pairs, 12373 based on Foata normal form. 1260/64348 useless extension candidates. Maximal degree in co-relation 206820. Up to 22033 conditions per place. [2024-10-14 19:33:28,456 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 141 selfloop transitions, 30 changer transitions 0/188 dead transitions. [2024-10-14 19:33:28,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 188 transitions, 1350 flow [2024-10-14 19:33:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:33:28,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:33:28,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 321 transitions. [2024-10-14 19:33:28,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6056603773584905 [2024-10-14 19:33:28,458 INFO L175 Difference]: Start difference. First operand has 75 places, 66 transitions, 423 flow. Second operand 10 states and 321 transitions. [2024-10-14 19:33:28,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 188 transitions, 1350 flow [2024-10-14 19:33:28,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 188 transitions, 1344 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-14 19:33:28,701 INFO L231 Difference]: Finished difference. Result has 92 places, 83 transitions, 746 flow [2024-10-14 19:33:28,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=746, PETRI_PLACES=92, PETRI_TRANSITIONS=83} [2024-10-14 19:33:28,702 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 32 predicate places. [2024-10-14 19:33:28,702 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 83 transitions, 746 flow [2024-10-14 19:33:28,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-14 19:33:28,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:33:28,702 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:33:28,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 19:33:28,703 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:33:28,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:33:28,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1201636596, now seen corresponding path program 1 times [2024-10-14 19:33:28,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:33:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404618223] [2024-10-14 19:33:28,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:33:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:33:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:33:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:33:28,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:33:28,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404618223] [2024-10-14 19:33:28,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404618223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:33:28,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:33:28,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:33:28,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861475437] [2024-10-14 19:33:28,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:33:28,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:33:28,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:33:28,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:33:28,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:33:28,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-14 19:33:28,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 83 transitions, 746 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) [2024-10-14 19:33:28,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:33:28,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-14 19:33:28,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand