./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/mix055_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d 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/mix055_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 b8efebf87dc67f98045ac231dc43d6a61f436e058244f16134f1d46d3b696c80 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:19:36,214 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:19:36,270 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:19:36,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:19:36,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:19:36,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:19:36,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:19:36,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:19:36,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:19:36,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:19:36,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:19:36,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:19:36,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:19:36,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:19:36,301 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:19:36,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:19:36,302 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:19:36,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:19:36,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:19:36,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:19:36,304 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:19:36,304 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:19:36,305 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:19:36,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:19:36,305 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:19:36,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:19:36,306 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:19:36,306 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:19:36,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:19:36,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:19:36,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:19:36,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:19:36,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:19:36,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:19:36,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:19:36,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:19:36,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:19:36,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:19:36,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:19:36,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:19:36,310 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:19:36,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:19:36,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8efebf87dc67f98045ac231dc43d6a61f436e058244f16134f1d46d3b696c80 [2024-10-13 12:19:36,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:19:36,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:19:36,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:19:36,646 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:19:36,647 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:19:36,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 12:19:38,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:19:38,563 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:19:38,564 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 12:19:38,584 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6de2fe47/fa9e7351567e4315be08d570688a057a/FLAGf0589b2e2 [2024-10-13 12:19:38,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6de2fe47/fa9e7351567e4315be08d570688a057a [2024-10-13 12:19:38,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:19:38,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:19:38,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:19:38,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:19:38,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:19:38,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:19:38" (1/1) ... [2024-10-13 12:19:38,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1701843a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:38, skipping insertion in model container [2024-10-13 12:19:38,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:19:38" (1/1) ... [2024-10-13 12:19:38,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:19:39,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:19:39,445 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:19:39,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:19:39,668 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:19:39,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39 WrapperNode [2024-10-13 12:19:39,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:19:39,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:19:39,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:19:39,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:19:39,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,746 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 130 [2024-10-13 12:19:39,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:19:39,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:19:39,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:19:39,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:19:39,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,799 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]. [2024-10-13 12:19:39,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,812 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:19:39,834 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:19:39,834 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:19:39,834 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:19:39,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (1/1) ... [2024-10-13 12:19:39,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:19:39,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:19:39,871 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) [2024-10-13 12:19:39,880 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 [2024-10-13 12:19:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:19:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:19:39,928 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 12:19:39,928 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 12:19:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 12:19:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 12:19:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 12:19:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 12:19:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-13 12:19:39,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-13 12:19:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:19:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:19:39,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:19:39,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:19:39,931 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:19:40,101 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:19:40,103 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:19:40,417 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:19:40,417 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:19:40,661 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:19:40,662 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:19:40,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:40 BoogieIcfgContainer [2024-10-13 12:19:40,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:19:40,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:19:40,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:19:40,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:19:40,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:19:38" (1/3) ... [2024-10-13 12:19:40,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bf24e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:19:40, skipping insertion in model container [2024-10-13 12:19:40,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:19:39" (2/3) ... [2024-10-13 12:19:40,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bf24e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:19:40, skipping insertion in model container [2024-10-13 12:19:40,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:19:40" (3/3) ... [2024-10-13 12:19:40,673 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 12:19:40,691 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:19:40,692 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-13 12:19:40,692 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:19:40,767 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 12:19:40,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2024-10-13 12:19:40,854 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2024-10-13 12:19:40,855 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:19:40,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-10-13 12:19:40,861 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2024-10-13 12:19:40,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2024-10-13 12:19:40,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:19:40,890 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;@4aa87a41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:19:40,890 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-13 12:19:40,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:19:40,895 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-13 12:19:40,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:19:40,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:19:40,896 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-13 12:19:40,896 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:19:40,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:19:40,902 INFO L85 PathProgramCache]: Analyzing trace with hash 12528064, now seen corresponding path program 1 times [2024-10-13 12:19:40,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:19:40,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141234512] [2024-10-13 12:19:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:19:40,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:19:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:19:41,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:19:41,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:19:41,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141234512] [2024-10-13 12:19:41,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141234512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:19:41,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:19:41,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:19:41,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332524212] [2024-10-13 12:19:41,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:19:41,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:19:41,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:19:41,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:19:41,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:19:41,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-13 12:19:41,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:19:41,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:19:41,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-13 12:19:41,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:19:42,608 INFO L124 PetriNetUnfolderBase]: 3311/5456 cut-off events. [2024-10-13 12:19:42,609 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-13 12:19:42,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10136 conditions, 5456 events. 3311/5456 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 39538 event pairs, 593 based on Foata normal form. 288/5705 useless extension candidates. Maximal degree in co-relation 10124. Up to 3661 conditions per place. [2024-10-13 12:19:42,668 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 41 selfloop transitions, 2 changer transitions 2/65 dead transitions. [2024-10-13 12:19:42,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 65 transitions, 241 flow [2024-10-13 12:19:42,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:19:42,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:19:42,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2024-10-13 12:19:42,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2024-10-13 12:19:42,683 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 122 transitions. [2024-10-13 12:19:42,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 65 transitions, 241 flow [2024-10-13 12:19:42,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 65 transitions, 234 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 12:19:42,694 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2024-10-13 12:19:42,697 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-13 12:19:42,701 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-10-13 12:19:42,703 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2024-10-13 12:19:42,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:19:42,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:19:42,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:19:42,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:19:42,705 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:19:42,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:19:42,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1557375222, now seen corresponding path program 1 times [2024-10-13 12:19:42,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:19:42,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698773424] [2024-10-13 12:19:42,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:19:42,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:19:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:19:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:19:42,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:19:42,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698773424] [2024-10-13 12:19:42,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698773424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:19:42,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:19:42,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:19:42,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229824433] [2024-10-13 12:19:42,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:19:42,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:19:42,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:19:42,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:19:42,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:19:42,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 53 [2024-10-13 12:19:42,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:19:42,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:19:42,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 53 [2024-10-13 12:19:42,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:19:43,665 INFO L124 PetriNetUnfolderBase]: 2903/4911 cut-off events. [2024-10-13 12:19:43,665 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-13 12:19:43,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9315 conditions, 4911 events. 2903/4911 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 34775 event pairs, 2903 based on Foata normal form. 144/4916 useless extension candidates. Maximal degree in co-relation 9305. Up to 4016 conditions per place. [2024-10-13 12:19:43,705 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 22 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-10-13 12:19:43,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 146 flow [2024-10-13 12:19:43,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:19:43,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:19:43,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-10-13 12:19:43,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5911949685534591 [2024-10-13 12:19:43,708 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 94 transitions. [2024-10-13 12:19:43,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 146 flow [2024-10-13 12:19:43,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:19:43,710 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-10-13 12:19:43,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-10-13 12:19:43,710 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-10-13 12:19:43,711 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-10-13 12:19:43,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:19:43,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:19:43,711 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:19:43,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:19:43,712 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:19:43,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:19:43,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1557373973, now seen corresponding path program 1 times [2024-10-13 12:19:43,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:19:43,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147308271] [2024-10-13 12:19:43,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:19:43,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:19:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:19:44,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:19:44,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:19:44,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147308271] [2024-10-13 12:19:44,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147308271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:19:44,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:19:44,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:19:44,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992590049] [2024-10-13 12:19:44,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:19:44,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:19:44,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:19:44,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:19:44,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:19:44,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-10-13 12:19:44,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:19:44,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:19:44,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-10-13 12:19:44,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:19:49,969 INFO L124 PetriNetUnfolderBase]: 30766/44297 cut-off events. [2024-10-13 12:19:49,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:19:50,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86098 conditions, 44297 events. 30766/44297 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1995. Compared 317051 event pairs, 6819 based on Foata normal form. 0/43348 useless extension candidates. Maximal degree in co-relation 86092. Up to 14967 conditions per place. [2024-10-13 12:19:50,271 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 46 selfloop transitions, 7 changer transitions 97/162 dead transitions. [2024-10-13 12:19:50,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 162 transitions, 638 flow [2024-10-13 12:19:50,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:19:50,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 12:19:50,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 305 transitions. [2024-10-13 12:19:50,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.639412997903564 [2024-10-13 12:19:50,279 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 9 states and 305 transitions. [2024-10-13 12:19:50,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 162 transitions, 638 flow [2024-10-13 12:19:50,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 162 transitions, 637 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:19:50,288 INFO L231 Difference]: Finished difference. Result has 68 places, 47 transitions, 189 flow [2024-10-13 12:19:50,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=189, PETRI_PLACES=68, PETRI_TRANSITIONS=47} [2024-10-13 12:19:50,290 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 8 predicate places. [2024-10-13 12:19:50,290 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 47 transitions, 189 flow [2024-10-13 12:19:50,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:19:50,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:19:50,292 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:19:50,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:19:50,292 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:19:50,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:19:50,294 INFO L85 PathProgramCache]: Analyzing trace with hash -32738092, now seen corresponding path program 1 times [2024-10-13 12:19:50,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:19:50,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791132848] [2024-10-13 12:19:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:19:50,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:19:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:19:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:19:50,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:19:50,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791132848] [2024-10-13 12:19:50,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791132848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:19:50,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:19:50,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:19:50,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026066692] [2024-10-13 12:19:50,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:19:50,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:19:50,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:19:50,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:19:50,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:19:50,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-10-13 12:19:50,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 47 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:19:50,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:19:50,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-10-13 12:19:50,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:19:55,664 INFO L124 PetriNetUnfolderBase]: 22990/34194 cut-off events. [2024-10-13 12:19:55,665 INFO L125 PetriNetUnfolderBase]: For 45332/45379 co-relation queries the response was YES. [2024-10-13 12:19:55,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97638 conditions, 34194 events. 22990/34194 cut-off events. For 45332/45379 co-relation queries the response was YES. Maximal size of possible extension queue 1565. Compared 246671 event pairs, 1502 based on Foata normal form. 745/34898 useless extension candidates. Maximal degree in co-relation 97623. Up to 14211 conditions per place. [2024-10-13 12:19:55,957 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 59 selfloop transitions, 11 changer transitions 84/166 dead transitions. [2024-10-13 12:19:55,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 166 transitions, 1013 flow [2024-10-13 12:19:55,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:19:55,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:19:55,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 317 transitions. [2024-10-13 12:19:55,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5981132075471698 [2024-10-13 12:19:55,960 INFO L175 Difference]: Start difference. First operand has 68 places, 47 transitions, 189 flow. Second operand 10 states and 317 transitions. [2024-10-13 12:19:55,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 166 transitions, 1013 flow [2024-10-13 12:19:56,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 166 transitions, 901 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-10-13 12:19:56,331 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 283 flow [2024-10-13 12:19:56,332 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=283, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2024-10-13 12:19:56,333 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 15 predicate places. [2024-10-13 12:19:56,333 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 283 flow [2024-10-13 12:19:56,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:19:56,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:19:56,334 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:19:56,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:19:56,334 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:19:56,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:19:56,334 INFO L85 PathProgramCache]: Analyzing trace with hash -12082102, now seen corresponding path program 1 times [2024-10-13 12:19:56,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:19:56,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165367794] [2024-10-13 12:19:56,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:19:56,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:19:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:19:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:19:56,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:19:56,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165367794] [2024-10-13 12:19:56,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165367794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:19:56,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:19:56,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:19:56,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991254241] [2024-10-13 12:19:56,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:19:56,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:19:56,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:19:56,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:19:56,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:19:56,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-10-13 12:19:56,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:19:56,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:19:56,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-10-13 12:19:56,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:20:01,928 INFO L124 PetriNetUnfolderBase]: 22352/32933 cut-off events. [2024-10-13 12:20:01,928 INFO L125 PetriNetUnfolderBase]: For 88487/88553 co-relation queries the response was YES. [2024-10-13 12:20:02,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105175 conditions, 32933 events. 22352/32933 cut-off events. For 88487/88553 co-relation queries the response was YES. Maximal size of possible extension queue 1477. Compared 233641 event pairs, 4865 based on Foata normal form. 753/33657 useless extension candidates. Maximal degree in co-relation 105153. Up to 13760 conditions per place. [2024-10-13 12:20:02,247 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 68 selfloop transitions, 17 changer transitions 84/181 dead transitions. [2024-10-13 12:20:02,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 181 transitions, 1223 flow [2024-10-13 12:20:02,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:20:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:20:02,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2024-10-13 12:20:02,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6094339622641509 [2024-10-13 12:20:02,249 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 283 flow. Second operand 10 states and 323 transitions. [2024-10-13 12:20:02,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 181 transitions, 1223 flow [2024-10-13 12:20:03,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 181 transitions, 1195 flow, removed 14 selfloop flow, removed 0 redundant places. [2024-10-13 12:20:03,057 INFO L231 Difference]: Finished difference. Result has 87 places, 63 transitions, 455 flow [2024-10-13 12:20:03,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=455, PETRI_PLACES=87, PETRI_TRANSITIONS=63} [2024-10-13 12:20:03,058 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 27 predicate places. [2024-10-13 12:20:03,058 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 63 transitions, 455 flow [2024-10-13 12:20:03,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:20:03,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:20:03,059 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] [2024-10-13 12:20:03,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 12:20:03,059 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:20:03,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:20:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1412287195, now seen corresponding path program 1 times [2024-10-13 12:20:03,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:20:03,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119171228] [2024-10-13 12:20:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:20:03,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:20:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:20:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:20:03,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:20:03,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119171228] [2024-10-13 12:20:03,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119171228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:20:03,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:20:03,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:20:03,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748533916] [2024-10-13 12:20:03,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:20:03,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:20:03,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:20:03,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:20:03,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:20:03,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-13 12:20:03,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 63 transitions, 455 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:20:03,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:20:03,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-13 12:20:03,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:20:10,773 INFO L124 PetriNetUnfolderBase]: 33366/50357 cut-off events. [2024-10-13 12:20:10,774 INFO L125 PetriNetUnfolderBase]: For 100971/105598 co-relation queries the response was YES. [2024-10-13 12:20:11,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135486 conditions, 50357 events. 33366/50357 cut-off events. For 100971/105598 co-relation queries the response was YES. Maximal size of possible extension queue 2061. Compared 383553 event pairs, 5141 based on Foata normal form. 2932/51874 useless extension candidates. Maximal degree in co-relation 135454. Up to 27567 conditions per place. [2024-10-13 12:20:11,419 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 60 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2024-10-13 12:20:11,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 99 transitions, 721 flow [2024-10-13 12:20:11,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:20:11,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:20:11,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-10-13 12:20:11,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6509433962264151 [2024-10-13 12:20:11,421 INFO L175 Difference]: Start difference. First operand has 87 places, 63 transitions, 455 flow. Second operand 4 states and 138 transitions. [2024-10-13 12:20:11,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 99 transitions, 721 flow [2024-10-13 12:20:13,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 99 transitions, 705 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-10-13 12:20:13,339 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 485 flow [2024-10-13 12:20:13,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=485, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2024-10-13 12:20:13,340 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 22 predicate places. [2024-10-13 12:20:13,341 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 485 flow [2024-10-13 12:20:13,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:20:13,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:20:13,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:20:13,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 12:20:13,341 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:20:13,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:20:13,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1833081531, now seen corresponding path program 1 times [2024-10-13 12:20:13,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:20:13,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108315257] [2024-10-13 12:20:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:20:13,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:20:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:20:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:20:13,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:20:13,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108315257] [2024-10-13 12:20:13,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108315257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:20:13,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:20:13,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:20:13,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760440991] [2024-10-13 12:20:13,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:20:13,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:20:13,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:20:13,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:20:13,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:20:13,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-10-13 12:20:13,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:20:13,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:20:13,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-10-13 12:20:13,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:20:23,763 INFO L124 PetriNetUnfolderBase]: 44887/67535 cut-off events. [2024-10-13 12:20:23,764 INFO L125 PetriNetUnfolderBase]: For 189792/192656 co-relation queries the response was YES. [2024-10-13 12:20:24,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219097 conditions, 67535 events. 44887/67535 cut-off events. For 189792/192656 co-relation queries the response was YES. Maximal size of possible extension queue 3204. Compared 549208 event pairs, 13806 based on Foata normal form. 1288/65194 useless extension candidates. Maximal degree in co-relation 219064. Up to 21694 conditions per place. [2024-10-13 12:20:24,632 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 129 selfloop transitions, 33 changer transitions 14/193 dead transitions. [2024-10-13 12:20:24,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 193 transitions, 1497 flow [2024-10-13 12:20:24,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:20:24,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:20:24,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 322 transitions. [2024-10-13 12:20:24,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6075471698113207 [2024-10-13 12:20:24,634 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 485 flow. Second operand 10 states and 322 transitions. [2024-10-13 12:20:24,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 193 transitions, 1497 flow [2024-10-13 12:20:25,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 193 transitions, 1481 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-10-13 12:20:25,213 INFO L231 Difference]: Finished difference. Result has 95 places, 84 transitions, 821 flow [2024-10-13 12:20:25,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=821, PETRI_PLACES=95, PETRI_TRANSITIONS=84} [2024-10-13 12:20:25,215 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 35 predicate places. [2024-10-13 12:20:25,215 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 84 transitions, 821 flow [2024-10-13 12:20:25,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:20:25,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:20:25,215 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:20:25,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 12:20:25,216 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:20:25,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:20:25,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1263459794, now seen corresponding path program 1 times [2024-10-13 12:20:25,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:20:25,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830195123] [2024-10-13 12:20:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:20:25,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:20:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:20:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:20:25,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:20:25,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830195123] [2024-10-13 12:20:25,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830195123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:20:25,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:20:25,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:20:25,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806940700] [2024-10-13 12:20:25,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:20:25,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:20:25,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:20:25,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:20:25,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:20:25,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-13 12:20:25,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 84 transitions, 821 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:20:25,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:20:25,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-13 12:20:25,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:20:34,611 INFO L124 PetriNetUnfolderBase]: 41799/62197 cut-off events. [2024-10-13 12:20:34,612 INFO L125 PetriNetUnfolderBase]: For 163350/170168 co-relation queries the response was YES. [2024-10-13 12:20:35,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184182 conditions, 62197 events. 41799/62197 cut-off events. For 163350/170168 co-relation queries the response was YES. Maximal size of possible extension queue 2341. Compared 466428 event pairs, 5149 based on Foata normal form. 4127/64855 useless extension candidates. Maximal degree in co-relation 184143. Up to 24973 conditions per place. [2024-10-13 12:20:35,326 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 80 selfloop transitions, 10 changer transitions 7/136 dead transitions. [2024-10-13 12:20:35,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 136 transitions, 1231 flow [2024-10-13 12:20:35,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:20:35,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:20:35,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 177 transitions. [2024-10-13 12:20:35,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6679245283018868 [2024-10-13 12:20:35,328 INFO L175 Difference]: Start difference. First operand has 95 places, 84 transitions, 821 flow. Second operand 5 states and 177 transitions. [2024-10-13 12:20:35,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 136 transitions, 1231 flow [2024-10-13 12:20:36,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 136 transitions, 1165 flow, removed 17 selfloop flow, removed 2 redundant places. [2024-10-13 12:20:36,531 INFO L231 Difference]: Finished difference. Result has 99 places, 80 transitions, 716 flow [2024-10-13 12:20:36,531 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=716, PETRI_PLACES=99, PETRI_TRANSITIONS=80} [2024-10-13 12:20:36,534 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 39 predicate places. [2024-10-13 12:20:36,535 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 80 transitions, 716 flow [2024-10-13 12:20:36,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:20:36,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:20:36,536 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] [2024-10-13 12:20:36,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 12:20:36,537 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-13 12:20:36,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:20:36,537 INFO L85 PathProgramCache]: Analyzing trace with hash 782492513, now seen corresponding path program 1 times [2024-10-13 12:20:36,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:20:36,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476982980] [2024-10-13 12:20:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:20:36,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:20:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:20:36,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:20:36,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:20:36,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476982980] [2024-10-13 12:20:36,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476982980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:20:36,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:20:36,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:20:36,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338666396] [2024-10-13 12:20:36,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:20:36,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:20:36,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:20:36,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:20:36,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:20:36,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-10-13 12:20:36,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 80 transitions, 716 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 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) [2024-10-13 12:20:36,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:20:36,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-10-13 12:20:36,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand