./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/mix037_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/mix037_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 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:58:27,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:58:27,947 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:58:27,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:58:27,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:58:27,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:58:27,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:58:27,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:58:27,986 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:58:27,987 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:58:27,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:58:27,988 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:58:27,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:58:27,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:58:27,990 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:58:27,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:58:27,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:58:27,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:58:27,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:58:27,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:58:27,992 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:58:27,996 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:58:27,997 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:58:27,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:58:27,997 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:58:27,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:58:27,998 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:58:27,998 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:58:27,998 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:58:27,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:58:27,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:58:28,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:58:28,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:58:28,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:58:28,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:58:28,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:58:28,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:58:28,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:58:28,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:58:28,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:58:28,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:58:28,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:58:28,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f [2024-10-24 18:58:28,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:58:28,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:58:28,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:58:28,295 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:58:28,295 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:58:28,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2024-10-24 18:58:29,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:58:29,991 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:58:29,992 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2024-10-24 18:58:30,019 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3b9ecc79/531eb01146824a7983f37695b9fc97e7/FLAG10cd95b83 [2024-10-24 18:58:30,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3b9ecc79/531eb01146824a7983f37695b9fc97e7 [2024-10-24 18:58:30,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:58:30,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:58:30,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:58:30,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:58:30,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:58:30,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24679c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30, skipping insertion in model container [2024-10-24 18:58:30,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:58:30,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:58:30,526 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:58:30,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:58:30,633 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:58:30,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30 WrapperNode [2024-10-24 18:58:30,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:58:30,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:58:30,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:58:30,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:58:30,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,716 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-10-24 18:58:30,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:58:30,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:58:30,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:58:30,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:58:30,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,741 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,775 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 18:58:30,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:58:30,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:58:30,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:58:30,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:58:30,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (1/1) ... [2024-10-24 18:58:30,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:58:30,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:58:30,847 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 18:58:30,850 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 18:58:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 18:58:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:58:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 18:58:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 18:58:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 18:58:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 18:58:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 18:58:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 18:58:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 18:58:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 18:58:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 18:58:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 18:58:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:58:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:58:30,938 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 18:58:31,069 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:58:31,071 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:58:31,414 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 18:58:31,415 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:58:31,647 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:58:31,648 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 18:58:31,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:58:31 BoogieIcfgContainer [2024-10-24 18:58:31,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:58:31,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:58:31,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:58:31,655 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:58:31,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:58:30" (1/3) ... [2024-10-24 18:58:31,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6465d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:58:31, skipping insertion in model container [2024-10-24 18:58:31,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:58:30" (2/3) ... [2024-10-24 18:58:31,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6465d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:58:31, skipping insertion in model container [2024-10-24 18:58:31,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:58:31" (3/3) ... [2024-10-24 18:58:31,659 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037_power.oepc_pso.oepc_rmo.oepc.i [2024-10-24 18:58:31,675 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:58:31,675 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 18:58:31,676 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 18:58:31,732 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 18:58:31,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-24 18:58:31,805 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-24 18:58:31,806 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:58:31,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-10-24 18:58:31,811 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-24 18:58:31,816 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-24 18:58:31,837 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:58:31,845 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;@3ab9ba8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:58:31,846 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-24 18:58:31,871 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 18:58:31,872 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-24 18:58:31,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:58:31,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:58:31,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-24 18:58:31,874 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 18:58:31,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:58:31,880 INFO L85 PathProgramCache]: Analyzing trace with hash 13010806, now seen corresponding path program 1 times [2024-10-24 18:58:31,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:58:31,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781241454] [2024-10-24 18:58:31,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:58:31,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:58:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:58:32,405 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 18:58:32,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:58:32,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781241454] [2024-10-24 18:58:32,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781241454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:58:32,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:58:32,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:58:32,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55022616] [2024-10-24 18:58:32,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:58:32,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:58:32,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:58:32,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:58:32,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:58:32,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-24 18:58:32,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:58:32,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:58:32,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-24 18:58:32,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:58:33,655 INFO L124 PetriNetUnfolderBase]: 3311/5215 cut-off events. [2024-10-24 18:58:33,656 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-24 18:58:33,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9895 conditions, 5215 events. 3311/5215 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 33468 event pairs, 2177 based on Foata normal form. 288/5439 useless extension candidates. Maximal degree in co-relation 9883. Up to 3661 conditions per place. [2024-10-24 18:58:33,703 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-10-24 18:58:33,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-10-24 18:58:33,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:58:33,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:58:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-10-24 18:58:33,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-10-24 18:58:33,718 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-10-24 18:58:33,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-10-24 18:58:33,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 18:58:33,725 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-24 18:58:33,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-10-24 18:58:33,733 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-24 18:58:33,733 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-24 18:58:33,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:58:33,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:58:33,734 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 18:58:33,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 18:58:33,735 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 18:58:33,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:58:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash -947079504, now seen corresponding path program 1 times [2024-10-24 18:58:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:58:33,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704633135] [2024-10-24 18:58:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:58:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:58:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:58:33,843 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 18:58:33,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:58:33,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704633135] [2024-10-24 18:58:33,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704633135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:58:33,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:58:33,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 18:58:33,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576739260] [2024-10-24 18:58:33,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:58:33,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 18:58:33,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:58:33,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 18:58:33,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 18:58:33,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-24 18:58:33,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:58:33,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:58:33,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-24 18:58:33,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:58:34,651 INFO L124 PetriNetUnfolderBase]: 2903/4947 cut-off events. [2024-10-24 18:58:34,651 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-24 18:58:34,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9351 conditions, 4947 events. 2903/4947 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 35212 event pairs, 2903 based on Foata normal form. 144/4849 useless extension candidates. Maximal degree in co-relation 9341. Up to 4016 conditions per place. [2024-10-24 18:58:34,683 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-24 18:58:34,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-10-24 18:58:34,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 18:58:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 18:58:34,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-10-24 18:58:34,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-24 18:58:34,685 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-10-24 18:58:34,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-10-24 18:58:34,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 18:58:34,687 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-24 18:58:34,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-24 18:58:34,688 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-24 18:58:34,688 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-24 18:58:34,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 18:58:34,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:58:34,689 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 18:58:34,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 18:58:34,690 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 18:58:34,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:58:34,690 INFO L85 PathProgramCache]: Analyzing trace with hash -947078218, now seen corresponding path program 1 times [2024-10-24 18:58:34,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:58:34,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498229216] [2024-10-24 18:58:34,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:58:34,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:58:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:58:34,959 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 18:58:34,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:58:34,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498229216] [2024-10-24 18:58:34,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498229216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:58:34,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:58:34,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:58:34,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364024425] [2024-10-24 18:58:34,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:58:34,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:58:34,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:58:34,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:58:34,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:58:34,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-10-24 18:58:34,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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 18:58:34,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:58:34,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-10-24 18:58:34,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:58:39,545 INFO L124 PetriNetUnfolderBase]: 26337/38577 cut-off events. [2024-10-24 18:58:39,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:58:39,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74464 conditions, 38577 events. 26337/38577 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1725. Compared 282423 event pairs, 8295 based on Foata normal form. 0/37506 useless extension candidates. Maximal degree in co-relation 74458. Up to 16162 conditions per place. [2024-10-24 18:58:39,983 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 46 selfloop transitions, 7 changer transitions 95/162 dead transitions. [2024-10-24 18:58:39,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 162 transitions, 634 flow [2024-10-24 18:58:39,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 18:58:39,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 18:58:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 321 transitions. [2024-10-24 18:58:39,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2024-10-24 18:58:39,988 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 321 transitions. [2024-10-24 18:58:39,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 162 transitions, 634 flow [2024-10-24 18:58:39,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 162 transitions, 633 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 18:58:39,996 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 193 flow [2024-10-24 18:58:39,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=193, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2024-10-24 18:58:39,998 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-24 18:58:39,998 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 193 flow [2024-10-24 18:58:39,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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 18:58:39,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:58:39,999 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 18:58:39,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 18:58:39,999 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 18:58:40,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:58:40,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1797660843, now seen corresponding path program 1 times [2024-10-24 18:58:40,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:58:40,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443340086] [2024-10-24 18:58:40,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:58:40,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:58:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:58:40,216 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 18:58:40,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:58:40,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443340086] [2024-10-24 18:58:40,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443340086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:58:40,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:58:40,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:58:40,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679656543] [2024-10-24 18:58:40,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:58:40,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:58:40,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:58:40,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:58:40,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:58:40,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-10-24 18:58:40,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 193 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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 18:58:40,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:58:40,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-10-24 18:58:40,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:58:43,617 INFO L124 PetriNetUnfolderBase]: 14870/23714 cut-off events. [2024-10-24 18:58:43,618 INFO L125 PetriNetUnfolderBase]: For 23597/25109 co-relation queries the response was YES. [2024-10-24 18:58:43,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62537 conditions, 23714 events. 14870/23714 cut-off events. For 23597/25109 co-relation queries the response was YES. Maximal size of possible extension queue 1156. Compared 187809 event pairs, 4637 based on Foata normal form. 920/23972 useless extension candidates. Maximal degree in co-relation 62522. Up to 13009 conditions per place. [2024-10-24 18:58:43,832 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 34 selfloop transitions, 3 changer transitions 43/102 dead transitions. [2024-10-24 18:58:43,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 102 transitions, 517 flow [2024-10-24 18:58:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 18:58:43,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 18:58:43,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-10-24 18:58:43,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6155844155844156 [2024-10-24 18:58:43,835 INFO L175 Difference]: Start difference. First operand has 70 places, 49 transitions, 193 flow. Second operand 7 states and 237 transitions. [2024-10-24 18:58:43,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 102 transitions, 517 flow [2024-10-24 18:58:44,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 102 transitions, 467 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-10-24 18:58:44,096 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 182 flow [2024-10-24 18:58:44,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=182, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2024-10-24 18:58:44,097 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-24 18:58:44,097 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 182 flow [2024-10-24 18:58:44,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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 18:58:44,099 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:58:44,099 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] [2024-10-24 18:58:44,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 18:58:44,100 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 18:58:44,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:58:44,100 INFO L85 PathProgramCache]: Analyzing trace with hash -441793482, now seen corresponding path program 1 times [2024-10-24 18:58:44,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:58:44,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458860037] [2024-10-24 18:58:44,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:58:44,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:58:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:58:44,336 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 18:58:44,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:58:44,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458860037] [2024-10-24 18:58:44,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458860037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:58:44,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:58:44,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:58:44,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368447989] [2024-10-24 18:58:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:58:44,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:58:44,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:58:44,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:58:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:58:44,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-10-24 18:58:44,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 18:58:44,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:58:44,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-10-24 18:58:44,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:58:47,734 INFO L124 PetriNetUnfolderBase]: 18071/26782 cut-off events. [2024-10-24 18:58:47,734 INFO L125 PetriNetUnfolderBase]: For 28492/28694 co-relation queries the response was YES. [2024-10-24 18:58:47,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73605 conditions, 26782 events. 18071/26782 cut-off events. For 28492/28694 co-relation queries the response was YES. Maximal size of possible extension queue 1122. Compared 186192 event pairs, 5479 based on Foata normal form. 649/27398 useless extension candidates. Maximal degree in co-relation 73587. Up to 13648 conditions per place. [2024-10-24 18:58:47,966 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 63 selfloop transitions, 11 changer transitions 74/162 dead transitions. [2024-10-24 18:58:47,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 162 transitions, 894 flow [2024-10-24 18:58:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 18:58:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 18:58:47,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 337 transitions. [2024-10-24 18:58:47,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6127272727272727 [2024-10-24 18:58:47,968 INFO L175 Difference]: Start difference. First operand has 70 places, 49 transitions, 182 flow. Second operand 10 states and 337 transitions. [2024-10-24 18:58:47,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 162 transitions, 894 flow [2024-10-24 18:58:48,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 162 transitions, 852 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-10-24 18:58:48,382 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 252 flow [2024-10-24 18:58:48,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=252, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2024-10-24 18:58:48,383 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 13 predicate places. [2024-10-24 18:58:48,383 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 252 flow [2024-10-24 18:58:48,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 18:58:48,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:58:48,384 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:58:48,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 18:58:48,384 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 18:58:48,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:58:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash -59346925, now seen corresponding path program 1 times [2024-10-24 18:58:48,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:58:48,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642829984] [2024-10-24 18:58:48,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:58:48,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:58:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:58:48,499 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 18:58:48,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:58:48,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642829984] [2024-10-24 18:58:48,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642829984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:58:48,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:58:48,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 18:58:48,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373131887] [2024-10-24 18:58:48,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:58:48,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 18:58:48,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:58:48,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 18:58:48,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 18:58:48,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-24 18:58:48,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 18:58:48,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:58:48,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-24 18:58:48,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:58:52,999 INFO L124 PetriNetUnfolderBase]: 28938/43306 cut-off events. [2024-10-24 18:58:52,999 INFO L125 PetriNetUnfolderBase]: For 35218/38087 co-relation queries the response was YES. [2024-10-24 18:58:53,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106972 conditions, 43306 events. 28938/43306 cut-off events. For 35218/38087 co-relation queries the response was YES. Maximal size of possible extension queue 1646. Compared 317034 event pairs, 5142 based on Foata normal form. 1569/43501 useless extension candidates. Maximal degree in co-relation 106952. Up to 23158 conditions per place. [2024-10-24 18:58:53,370 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 57 selfloop transitions, 6 changer transitions 0/88 dead transitions. [2024-10-24 18:58:53,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 88 transitions, 474 flow [2024-10-24 18:58:53,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 18:58:53,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 18:58:53,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-10-24 18:58:53,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-10-24 18:58:53,373 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 252 flow. Second operand 4 states and 146 transitions. [2024-10-24 18:58:53,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 88 transitions, 474 flow [2024-10-24 18:58:53,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 88 transitions, 458 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-10-24 18:58:53,923 INFO L231 Difference]: Finished difference. Result has 70 places, 59 transitions, 282 flow [2024-10-24 18:58:53,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=70, PETRI_TRANSITIONS=59} [2024-10-24 18:58:53,924 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-24 18:58:53,924 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 59 transitions, 282 flow [2024-10-24 18:58:53,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 18:58:53,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:58:53,924 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] [2024-10-24 18:58:53,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 18:58:53,925 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 18:58:53,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:58:53,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2045013251, now seen corresponding path program 1 times [2024-10-24 18:58:53,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:58:53,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419418951] [2024-10-24 18:58:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:58:53,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:58:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:58:54,187 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 18:58:54,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:58:54,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419418951] [2024-10-24 18:58:54,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419418951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:58:54,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:58:54,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 18:58:54,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116198579] [2024-10-24 18:58:54,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:58:54,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:58:54,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:58:54,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:58:54,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:58:54,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 55 [2024-10-24 18:58:54,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 59 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:58:54,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:58:54,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 55 [2024-10-24 18:58:54,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:58:59,976 INFO L124 PetriNetUnfolderBase]: 32909/49128 cut-off events. [2024-10-24 18:58:59,977 INFO L125 PetriNetUnfolderBase]: For 47834/50432 co-relation queries the response was YES. [2024-10-24 18:59:00,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138199 conditions, 49128 events. 32909/49128 cut-off events. For 47834/50432 co-relation queries the response was YES. Maximal size of possible extension queue 2299. Compared 379530 event pairs, 12951 based on Foata normal form. 799/47317 useless extension candidates. Maximal degree in co-relation 138179. Up to 20835 conditions per place. [2024-10-24 18:59:00,310 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 98 selfloop transitions, 14 changer transitions 6/137 dead transitions. [2024-10-24 18:59:00,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 137 transitions, 815 flow [2024-10-24 18:59:00,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 18:59:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 18:59:00,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 266 transitions. [2024-10-24 18:59:00,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6045454545454545 [2024-10-24 18:59:00,312 INFO L175 Difference]: Start difference. First operand has 70 places, 59 transitions, 282 flow. Second operand 8 states and 266 transitions. [2024-10-24 18:59:00,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 137 transitions, 815 flow [2024-10-24 18:59:00,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 137 transitions, 809 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-24 18:59:00,392 INFO L231 Difference]: Finished difference. Result has 79 places, 64 transitions, 365 flow [2024-10-24 18:59:00,393 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=365, PETRI_PLACES=79, PETRI_TRANSITIONS=64} [2024-10-24 18:59:00,394 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-10-24 18:59:00,394 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 64 transitions, 365 flow [2024-10-24 18:59:00,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:59:00,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:00,395 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] [2024-10-24 18:59:00,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 18:59:00,395 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 18:59:00,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:00,395 INFO L85 PathProgramCache]: Analyzing trace with hash 843164742, now seen corresponding path program 1 times [2024-10-24 18:59:00,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:00,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329124036] [2024-10-24 18:59:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:00,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:00,577 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 18:59:00,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:00,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329124036] [2024-10-24 18:59:00,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329124036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:00,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:00,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 18:59:00,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571781445] [2024-10-24 18:59:00,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:00,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 18:59:00,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:00,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 18:59:00,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 18:59:00,590 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-24 18:59:00,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 64 transitions, 365 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 18:59:00,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:00,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-24 18:59:00,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:59:05,885 INFO L124 PetriNetUnfolderBase]: 32792/48909 cut-off events. [2024-10-24 18:59:05,885 INFO L125 PetriNetUnfolderBase]: For 41743/44152 co-relation queries the response was YES. [2024-10-24 18:59:06,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131603 conditions, 48909 events. 32792/48909 cut-off events. For 41743/44152 co-relation queries the response was YES. Maximal size of possible extension queue 1891. Compared 358244 event pairs, 4581 based on Foata normal form. 2059/49341 useless extension candidates. Maximal degree in co-relation 131579. Up to 18665 conditions per place. [2024-10-24 18:59:06,249 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 74 selfloop transitions, 10 changer transitions 3/114 dead transitions. [2024-10-24 18:59:06,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 114 transitions, 698 flow [2024-10-24 18:59:06,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 18:59:06,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 18:59:06,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 187 transitions. [2024-10-24 18:59:06,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.68 [2024-10-24 18:59:06,251 INFO L175 Difference]: Start difference. First operand has 79 places, 64 transitions, 365 flow. Second operand 5 states and 187 transitions. [2024-10-24 18:59:06,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 114 transitions, 698 flow [2024-10-24 18:59:06,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 114 transitions, 659 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-10-24 18:59:06,625 INFO L231 Difference]: Finished difference. Result has 83 places, 66 transitions, 371 flow [2024-10-24 18:59:06,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=371, PETRI_PLACES=83, PETRI_TRANSITIONS=66} [2024-10-24 18:59:06,626 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2024-10-24 18:59:06,626 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 66 transitions, 371 flow [2024-10-24 18:59:06,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 18:59:06,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:06,627 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] [2024-10-24 18:59:06,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 18:59:06,627 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 18:59:06,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:06,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1325791411, now seen corresponding path program 1 times [2024-10-24 18:59:06,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:06,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669493159] [2024-10-24 18:59:06,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:06,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:59:07,166 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 18:59:07,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:59:07,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669493159] [2024-10-24 18:59:07,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669493159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:59:07,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:59:07,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 18:59:07,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824355721] [2024-10-24 18:59:07,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:59:07,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 18:59:07,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:59:07,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 18:59:07,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 18:59:07,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-24 18:59:07,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 66 transitions, 371 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:59:07,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:59:07,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-24 18:59:07,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:59:10,893 INFO L124 PetriNetUnfolderBase]: 24440/36209 cut-off events. [2024-10-24 18:59:10,893 INFO L125 PetriNetUnfolderBase]: For 47594/49102 co-relation queries the response was YES. [2024-10-24 18:59:11,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107819 conditions, 36209 events. 24440/36209 cut-off events. For 47594/49102 co-relation queries the response was YES. Maximal size of possible extension queue 1577. Compared 254399 event pairs, 2817 based on Foata normal form. 1233/35920 useless extension candidates. Maximal degree in co-relation 107793. Up to 12358 conditions per place. [2024-10-24 18:59:11,120 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 87 selfloop transitions, 14 changer transitions 2/130 dead transitions. [2024-10-24 18:59:11,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 130 transitions, 790 flow [2024-10-24 18:59:11,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 18:59:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 18:59:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 226 transitions. [2024-10-24 18:59:11,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2024-10-24 18:59:11,122 INFO L175 Difference]: Start difference. First operand has 83 places, 66 transitions, 371 flow. Second operand 6 states and 226 transitions. [2024-10-24 18:59:11,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 130 transitions, 790 flow [2024-10-24 18:59:11,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 130 transitions, 763 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-10-24 18:59:11,163 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 430 flow [2024-10-24 18:59:11,163 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2024-10-24 18:59:11,163 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2024-10-24 18:59:11,163 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 430 flow [2024-10-24 18:59:11,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:59:11,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:59:11,164 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 18:59:11,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 18:59:11,164 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 18:59:11,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:59:11,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1990611262, now seen corresponding path program 1 times [2024-10-24 18:59:11,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:59:11,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955618702] [2024-10-24 18:59:11,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:59:11,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:59:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat