./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/mix018_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 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/mix018_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 5a744aa24a15b244d86986861038a45981c329f5578e2da992d82373e2f73c5a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:56:10,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:56:10,707 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:56:10,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:56:10,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:56:10,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:56:10,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:56:10,740 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:56:10,741 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:56:10,742 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:56:10,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:56:10,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:56:10,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:56:10,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:56:10,744 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:56:10,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:56:10,745 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:56:10,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:56:10,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:56:10,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:56:10,746 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:56:10,750 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:56:10,750 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:56:10,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:56:10,751 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:56:10,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:56:10,751 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:56:10,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:56:10,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:56:10,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:56:10,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:56:10,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:56:10,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:56:10,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:56:10,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:56:10,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:56:10,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:56:10,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:56:10,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:56:10,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:56:10,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:56:10,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:56:10,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a744aa24a15b244d86986861038a45981c329f5578e2da992d82373e2f73c5a [2024-10-24 18:56:10,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:56:11,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:56:11,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:56:11,010 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:56:11,011 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:56:11,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2024-10-24 18:56:12,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:56:12,437 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:56:12,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_power.oepc_pso.oepc_rmo.oepc.i [2024-10-24 18:56:12,453 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91215124e/78b615ed92324388af3a486444079798/FLAG43bc73d78 [2024-10-24 18:56:12,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91215124e/78b615ed92324388af3a486444079798 [2024-10-24 18:56:12,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:56:12,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:56:12,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:56:12,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:56:12,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:56:12,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:12,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220bd229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12, skipping insertion in model container [2024-10-24 18:56:12,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:12,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:56:12,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:56:12,842 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:56:12,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:56:12,946 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:56:12,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12 WrapperNode [2024-10-24 18:56:12,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:56:12,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:56:12,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:56:12,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:56:12,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:12,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,025 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-10-24 18:56:13,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:56:13,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:56:13,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:56:13,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:56:13,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,042 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,061 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]. [2024-10-24 18:56:13,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:56:13,080 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:56:13,080 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:56:13,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:56:13,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (1/1) ... [2024-10-24 18:56:13,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:56:13,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:56:13,117 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) [2024-10-24 18:56:13,121 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 [2024-10-24 18:56:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 18:56:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:56:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 18:56:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 18:56:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 18:56:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 18:56:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 18:56:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 18:56:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 18:56:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 18:56:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 18:56:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 18:56:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:56:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:56:13,171 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 18:56:13,287 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:56:13,289 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:56:13,574 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 18:56:13,575 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:56:13,745 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:56:13,746 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 18:56:13,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:56:13 BoogieIcfgContainer [2024-10-24 18:56:13,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:56:13,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:56:13,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:56:13,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:56:13,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:56:12" (1/3) ... [2024-10-24 18:56:13,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c685fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:56:13, skipping insertion in model container [2024-10-24 18:56:13,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:56:12" (2/3) ... [2024-10-24 18:56:13,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c685fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:56:13, skipping insertion in model container [2024-10-24 18:56:13,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:56:13" (3/3) ... [2024-10-24 18:56:13,755 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_power.oepc_pso.oepc_rmo.oepc.i [2024-10-24 18:56:13,769 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:56:13,769 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 18:56:13,769 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 18:56:13,817 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 18:56:13,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-10-24 18:56:13,876 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-10-24 18:56:13,877 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:56:13,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-10-24 18:56:13,881 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-10-24 18:56:13,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-10-24 18:56:13,894 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:56:13,901 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;@6b531d72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:56:13,901 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-24 18:56:13,905 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 18:56:13,905 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-24 18:56:13,905 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:56:13,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:13,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-24 18:56:13,906 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:13,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:13,912 INFO L85 PathProgramCache]: Analyzing trace with hash 12922266, now seen corresponding path program 1 times [2024-10-24 18:56:13,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:13,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700947871] [2024-10-24 18:56:13,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:13,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:14,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:14,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700947871] [2024-10-24 18:56:14,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700947871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:14,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:14,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:56:14,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332497202] [2024-10-24 18:56:14,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:14,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:56:14,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:14,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:56:14,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:56:14,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-10-24 18:56:14,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 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) [2024-10-24 18:56:14,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:14,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-10-24 18:56:14,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:56:15,198 INFO L124 PetriNetUnfolderBase]: 3311/5438 cut-off events. [2024-10-24 18:56:15,199 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-24 18:56:15,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10118 conditions, 5438 events. 3311/5438 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 39063 event pairs, 593 based on Foata normal form. 288/5669 useless extension candidates. Maximal degree in co-relation 10106. Up to 3661 conditions per place. [2024-10-24 18:56:15,237 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 41 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2024-10-24 18:56:15,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 243 flow [2024-10-24 18:56:15,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:56:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:56:15,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2024-10-24 18:56:15,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716049382716049 [2024-10-24 18:56:15,249 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 125 transitions. [2024-10-24 18:56:15,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 243 flow [2024-10-24 18:56:15,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 66 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 18:56:15,255 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-10-24 18:56:15,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-10-24 18:56:15,259 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-10-24 18:56:15,261 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-10-24 18:56:15,261 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) [2024-10-24 18:56:15,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:15,261 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:56:15,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 18:56:15,262 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:15,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:15,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1204687332, now seen corresponding path program 1 times [2024-10-24 18:56:15,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:15,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660328624] [2024-10-24 18:56:15,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:15,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:15,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:15,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660328624] [2024-10-24 18:56:15,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660328624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:15,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:15,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:56:15,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042331110] [2024-10-24 18:56:15,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:15,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:56:15,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:15,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:56:15,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:56:15,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 54 [2024-10-24 18:56:15,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-10-24 18:56:15,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:15,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 54 [2024-10-24 18:56:15,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:56:15,888 INFO L124 PetriNetUnfolderBase]: 2903/4911 cut-off events. [2024-10-24 18:56:15,888 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-24 18:56:15,899 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 290. Compared 34711 event pairs, 2903 based on Foata normal form. 144/4880 useless extension candidates. Maximal degree in co-relation 9305. Up to 4016 conditions per place. [2024-10-24 18:56:15,917 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 22 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-10-24 18:56:15,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 148 flow [2024-10-24 18:56:15,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:56:15,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:56:15,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-10-24 18:56:15,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5987654320987654 [2024-10-24 18:56:15,920 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 97 transitions. [2024-10-24 18:56:15,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 148 flow [2024-10-24 18:56:15,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 18:56:15,923 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-10-24 18:56:15,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-10-24 18:56:15,924 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-10-24 18:56:15,924 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-10-24 18:56:15,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-10-24 18:56:15,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:15,925 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:56:15,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 18:56:15,925 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:15,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:15,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1204688585, now seen corresponding path program 1 times [2024-10-24 18:56:15,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:15,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648653654] [2024-10-24 18:56:15,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:16,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:16,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648653654] [2024-10-24 18:56:16,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648653654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:16,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:16,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:56:16,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270289463] [2024-10-24 18:56:16,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:16,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:56:16,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:16,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:56:16,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:56:16,186 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-24 18:56:16,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 18:56:16,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:16,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-24 18:56:16,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:56:19,736 INFO L124 PetriNetUnfolderBase]: 26337/38133 cut-off events. [2024-10-24 18:56:19,737 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:56:19,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74020 conditions, 38133 events. 26337/38133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1700. Compared 273206 event pairs, 7155 based on Foata normal form. 0/37232 useless extension candidates. Maximal degree in co-relation 74014. Up to 16162 conditions per place. [2024-10-24 18:56:19,963 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 46 selfloop transitions, 7 changer transitions 95/161 dead transitions. [2024-10-24 18:56:19,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 161 transitions, 632 flow [2024-10-24 18:56:19,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 18:56:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 18:56:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 312 transitions. [2024-10-24 18:56:19,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6419753086419753 [2024-10-24 18:56:19,966 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 9 states and 312 transitions. [2024-10-24 18:56:19,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 161 transitions, 632 flow [2024-10-24 18:56:19,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 161 transitions, 631 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 18:56:19,970 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 191 flow [2024-10-24 18:56:19,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=191, PETRI_PLACES=69, PETRI_TRANSITIONS=48} [2024-10-24 18:56:19,971 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-24 18:56:19,972 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 191 flow [2024-10-24 18:56:19,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-10-24 18:56:19,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:19,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:56:19,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 18:56:19,972 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:19,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:19,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1301961816, now seen corresponding path program 1 times [2024-10-24 18:56:19,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:19,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315737690] [2024-10-24 18:56:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:19,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:20,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:20,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315737690] [2024-10-24 18:56:20,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315737690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:20,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:20,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:56:20,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808586057] [2024-10-24 18:56:20,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:20,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:56:20,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:20,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:56:20,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:56:20,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-10-24 18:56:20,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 191 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) [2024-10-24 18:56:20,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:20,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-10-24 18:56:20,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:56:23,001 INFO L124 PetriNetUnfolderBase]: 14993/23725 cut-off events. [2024-10-24 18:56:23,001 INFO L125 PetriNetUnfolderBase]: For 22319/23673 co-relation queries the response was YES. [2024-10-24 18:56:23,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62959 conditions, 23725 events. 14993/23725 cut-off events. For 22319/23673 co-relation queries the response was YES. Maximal size of possible extension queue 1161. Compared 186163 event pairs, 4205 based on Foata normal form. 920/24090 useless extension candidates. Maximal degree in co-relation 62944. Up to 13036 conditions per place. [2024-10-24 18:56:23,180 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 34 selfloop transitions, 3 changer transitions 43/101 dead transitions. [2024-10-24 18:56:23,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 515 flow [2024-10-24 18:56:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 18:56:23,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 18:56:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2024-10-24 18:56:23,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6084656084656085 [2024-10-24 18:56:23,182 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 191 flow. Second operand 7 states and 230 transitions. [2024-10-24 18:56:23,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 515 flow [2024-10-24 18:56:23,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 101 transitions, 465 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-10-24 18:56:23,309 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 180 flow [2024-10-24 18:56:23,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=180, PETRI_PLACES=69, PETRI_TRANSITIONS=48} [2024-10-24 18:56:23,312 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-24 18:56:23,312 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 180 flow [2024-10-24 18:56:23,313 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) [2024-10-24 18:56:23,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:23,313 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:56:23,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 18:56:23,313 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:23,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:23,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1286337950, now seen corresponding path program 1 times [2024-10-24 18:56:23,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:23,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748145311] [2024-10-24 18:56:23,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:23,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:23,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:23,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:23,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748145311] [2024-10-24 18:56:23,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748145311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:23,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:23,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:56:23,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210656186] [2024-10-24 18:56:23,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:23,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:56:23,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:23,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:56:23,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:56:23,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-24 18:56:23,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:56:23,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:23,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-24 18:56:23,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:56:26,595 INFO L124 PetriNetUnfolderBase]: 18071/26835 cut-off events. [2024-10-24 18:56:26,595 INFO L125 PetriNetUnfolderBase]: For 29481/29532 co-relation queries the response was YES. [2024-10-24 18:56:26,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73658 conditions, 26835 events. 18071/26835 cut-off events. For 29481/29532 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 187768 event pairs, 5479 based on Foata normal form. 649/27466 useless extension candidates. Maximal degree in co-relation 73640. Up to 13648 conditions per place. [2024-10-24 18:56:26,817 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 63 selfloop transitions, 11 changer transitions 74/161 dead transitions. [2024-10-24 18:56:26,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 161 transitions, 892 flow [2024-10-24 18:56:26,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:56:26,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 18:56:26,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-10-24 18:56:26,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6055555555555555 [2024-10-24 18:56:26,819 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 180 flow. Second operand 10 states and 327 transitions. [2024-10-24 18:56:26,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 161 transitions, 892 flow [2024-10-24 18:56:27,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 161 transitions, 850 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-10-24 18:56:27,217 INFO L231 Difference]: Finished difference. Result has 74 places, 53 transitions, 250 flow [2024-10-24 18:56:27,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=250, PETRI_PLACES=74, PETRI_TRANSITIONS=53} [2024-10-24 18:56:27,218 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2024-10-24 18:56:27,218 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 53 transitions, 250 flow [2024-10-24 18:56:27,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:56:27,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:27,218 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:56:27,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 18:56:27,218 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:27,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:27,219 INFO L85 PathProgramCache]: Analyzing trace with hash -155948677, now seen corresponding path program 1 times [2024-10-24 18:56:27,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:27,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458342688] [2024-10-24 18:56:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:27,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:27,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:27,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:27,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458342688] [2024-10-24 18:56:27,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458342688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:27,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:27,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:56:27,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122622993] [2024-10-24 18:56:27,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:27,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:56:27,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:27,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:56:27,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:56:27,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-24 18:56:27,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 53 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-10-24 18:56:27,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:27,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-24 18:56:27,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:56:31,471 INFO L124 PetriNetUnfolderBase]: 28937/43273 cut-off events. [2024-10-24 18:56:31,471 INFO L125 PetriNetUnfolderBase]: For 36212/40275 co-relation queries the response was YES. [2024-10-24 18:56:31,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106935 conditions, 43273 events. 28937/43273 cut-off events. For 36212/40275 co-relation queries the response was YES. Maximal size of possible extension queue 1628. Compared 315644 event pairs, 5062 based on Foata normal form. 1588/43678 useless extension candidates. Maximal degree in co-relation 106915. Up to 23158 conditions per place. [2024-10-24 18:56:31,836 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 57 selfloop transitions, 6 changer transitions 0/87 dead transitions. [2024-10-24 18:56:31,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 87 transitions, 472 flow [2024-10-24 18:56:31,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:56:31,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 18:56:31,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 142 transitions. [2024-10-24 18:56:31,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2024-10-24 18:56:31,838 INFO L175 Difference]: Start difference. First operand has 74 places, 53 transitions, 250 flow. Second operand 4 states and 142 transitions. [2024-10-24 18:56:31,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 87 transitions, 472 flow [2024-10-24 18:56:32,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 87 transitions, 456 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-10-24 18:56:32,201 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 280 flow [2024-10-24 18:56:32,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=280, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2024-10-24 18:56:32,201 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-24 18:56:32,201 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 280 flow [2024-10-24 18:56:32,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-10-24 18:56:32,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:32,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:56:32,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 18:56:32,202 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:32,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:32,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1480653043, now seen corresponding path program 1 times [2024-10-24 18:56:32,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:32,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385857534] [2024-10-24 18:56:32,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:32,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:32,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:32,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:32,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385857534] [2024-10-24 18:56:32,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385857534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:32,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:32,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 18:56:32,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047879040] [2024-10-24 18:56:32,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:32,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:56:32,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:32,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:56:32,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:56:32,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-10-24 18:56:32,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-10-24 18:56:32,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:32,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-10-24 18:56:32,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:56:37,586 INFO L124 PetriNetUnfolderBase]: 33674/50159 cut-off events. [2024-10-24 18:56:37,586 INFO L125 PetriNetUnfolderBase]: For 47488/50196 co-relation queries the response was YES. [2024-10-24 18:56:37,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141014 conditions, 50159 events. 33674/50159 cut-off events. For 47488/50196 co-relation queries the response was YES. Maximal size of possible extension queue 2320. Compared 386682 event pairs, 13560 based on Foata normal form. 795/48248 useless extension candidates. Maximal degree in co-relation 140994. Up to 21391 conditions per place. [2024-10-24 18:56:38,057 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 102 selfloop transitions, 14 changer transitions 2/136 dead transitions. [2024-10-24 18:56:38,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 136 transitions, 813 flow [2024-10-24 18:56:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 18:56:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 18:56:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 258 transitions. [2024-10-24 18:56:38,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5972222222222222 [2024-10-24 18:56:38,059 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 280 flow. Second operand 8 states and 258 transitions. [2024-10-24 18:56:38,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 136 transitions, 813 flow [2024-10-24 18:56:38,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 136 transitions, 807 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-24 18:56:38,139 INFO L231 Difference]: Finished difference. Result has 78 places, 63 transitions, 363 flow [2024-10-24 18:56:38,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=363, PETRI_PLACES=78, PETRI_TRANSITIONS=63} [2024-10-24 18:56:38,140 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2024-10-24 18:56:38,140 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 63 transitions, 363 flow [2024-10-24 18:56:38,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-10-24 18:56:38,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:38,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:56:38,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 18:56:38,141 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:38,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:38,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1513694024, now seen corresponding path program 1 times [2024-10-24 18:56:38,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:38,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717042190] [2024-10-24 18:56:38,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:38,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:38,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:38,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717042190] [2024-10-24 18:56:38,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717042190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:38,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:38,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:56:38,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535384299] [2024-10-24 18:56:38,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:38,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:56:38,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:38,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:56:38,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:56:38,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-24 18:56:38,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 63 transitions, 363 flow. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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) [2024-10-24 18:56:38,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:38,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-24 18:56:38,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:56:43,373 INFO L124 PetriNetUnfolderBase]: 32724/48796 cut-off events. [2024-10-24 18:56:43,373 INFO L125 PetriNetUnfolderBase]: For 43037/46935 co-relation queries the response was YES. [2024-10-24 18:56:43,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131673 conditions, 48796 events. 32724/48796 cut-off events. For 43037/46935 co-relation queries the response was YES. Maximal size of possible extension queue 1872. Compared 357250 event pairs, 4420 based on Foata normal form. 2140/49476 useless extension candidates. Maximal degree in co-relation 131649. Up to 18553 conditions per place. [2024-10-24 18:56:43,730 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 74 selfloop transitions, 10 changer transitions 3/113 dead transitions. [2024-10-24 18:56:43,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 113 transitions, 696 flow [2024-10-24 18:56:43,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:56:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 18:56:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-10-24 18:56:43,731 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.674074074074074 [2024-10-24 18:56:43,731 INFO L175 Difference]: Start difference. First operand has 78 places, 63 transitions, 363 flow. Second operand 5 states and 182 transitions. [2024-10-24 18:56:43,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 113 transitions, 696 flow [2024-10-24 18:56:43,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 113 transitions, 657 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-10-24 18:56:43,948 INFO L231 Difference]: Finished difference. Result has 82 places, 65 transitions, 369 flow [2024-10-24 18:56:43,948 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=369, PETRI_PLACES=82, PETRI_TRANSITIONS=65} [2024-10-24 18:56:43,949 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 21 predicate places. [2024-10-24 18:56:43,949 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 65 transitions, 369 flow [2024-10-24 18:56:43,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 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) [2024-10-24 18:56:43,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:43,950 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:56:43,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 18:56:43,950 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:43,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:43,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1772990638, now seen corresponding path program 1 times [2024-10-24 18:56:43,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:43,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853736555] [2024-10-24 18:56:43,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:43,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:44,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:44,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:44,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853736555] [2024-10-24 18:56:44,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853736555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:44,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:56:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349682765] [2024-10-24 18:56:44,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:44,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:56:44,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:44,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:56:44,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:56:44,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-24 18:56:44,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 65 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:56:44,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:44,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-24 18:56:44,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:56:48,114 INFO L124 PetriNetUnfolderBase]: 24522/36299 cut-off events. [2024-10-24 18:56:48,114 INFO L125 PetriNetUnfolderBase]: For 49252/52161 co-relation queries the response was YES. [2024-10-24 18:56:48,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108273 conditions, 36299 events. 24522/36299 cut-off events. For 49252/52161 co-relation queries the response was YES. Maximal size of possible extension queue 1573. Compared 254625 event pairs, 2827 based on Foata normal form. 1311/36306 useless extension candidates. Maximal degree in co-relation 108247. Up to 12390 conditions per place. [2024-10-24 18:56:48,395 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 87 selfloop transitions, 14 changer transitions 2/129 dead transitions. [2024-10-24 18:56:48,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 129 transitions, 788 flow [2024-10-24 18:56:48,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:56:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 18:56:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 220 transitions. [2024-10-24 18:56:48,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2024-10-24 18:56:48,397 INFO L175 Difference]: Start difference. First operand has 82 places, 65 transitions, 369 flow. Second operand 6 states and 220 transitions. [2024-10-24 18:56:48,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 129 transitions, 788 flow [2024-10-24 18:56:48,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 129 transitions, 761 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-10-24 18:56:48,435 INFO L231 Difference]: Finished difference. Result has 82 places, 70 transitions, 428 flow [2024-10-24 18:56:48,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2024-10-24 18:56:48,436 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 21 predicate places. [2024-10-24 18:56:48,436 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 428 flow [2024-10-24 18:56:48,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:56:48,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:56:48,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:56:48,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 18:56:48,437 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 18:56:48,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:56:48,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1168565955, now seen corresponding path program 1 times [2024-10-24 18:56:48,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:56:48,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829240612] [2024-10-24 18:56:48,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:56:48,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:56:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:56:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:56:49,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:56:49,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829240612] [2024-10-24 18:56:49,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829240612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:56:49,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:56:49,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 18:56:49,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655568997] [2024-10-24 18:56:49,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:56:49,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 18:56:49,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:56:49,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 18:56:49,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 18:56:49,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-24 18:56:49,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 428 flow. Second operand has 9 states, 9 states have (on average 25.11111111111111) internal successors, (226), 9 states have internal predecessors, (226), 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) [2024-10-24 18:56:49,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:56:49,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-24 18:56:49,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand