./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/mix040_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/mix040_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 a72b3b3683b5d2b2d35965fc1a3189152678e29fe154c9fbeb2d06d1447980e3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:17:39,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:17:39,184 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:17:39,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:17:39,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:17:39,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:17:39,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:17:39,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:17:39,228 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:17:39,229 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:17:39,229 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:17:39,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:17:39,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:17:39,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:17:39,232 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:17:39,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:17:39,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:17:39,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:17:39,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:17:39,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:17:39,234 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:17:39,238 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:17:39,238 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:17:39,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:17:39,239 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:17:39,239 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:17:39,239 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:17:39,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:17:39,240 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:17:39,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:17:39,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:17:39,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:17:39,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:17:39,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:17:39,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:17:39,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:17:39,244 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:17:39,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:17:39,245 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:17:39,245 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:17:39,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:17:39,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:17:39,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a72b3b3683b5d2b2d35965fc1a3189152678e29fe154c9fbeb2d06d1447980e3 [2024-10-13 12:17:39,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:17:39,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:17:39,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:17:39,516 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:17:39,516 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:17:39,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 12:17:41,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:17:41,586 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:17:41,590 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 12:17:41,615 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e3488315/d612f77522a94c4eb77a72442c78a56d/FLAG01c427476 [2024-10-13 12:17:41,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e3488315/d612f77522a94c4eb77a72442c78a56d [2024-10-13 12:17:41,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:17:41,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:17:41,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:17:41,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:17:41,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:17:41,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:17:41" (1/1) ... [2024-10-13 12:17:41,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15976043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:41, skipping insertion in model container [2024-10-13 12:17:41,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:17:41" (1/1) ... [2024-10-13 12:17:41,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:17:42,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:17:42,267 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:17:42,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:17:42,425 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:17:42,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42 WrapperNode [2024-10-13 12:17:42,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:17:42,428 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:17:42,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:17:42,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:17:42,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,485 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-10-13 12:17:42,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:17:42,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:17:42,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:17:42,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:17:42,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,503 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,518 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 12:17:42,518 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:17:42,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:17:42,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:17:42,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:17:42,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (1/1) ... [2024-10-13 12:17:42,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:17:42,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:17:42,580 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 12:17:42,583 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 12:17:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 12:17:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 12:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 12:17:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 12:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 12:17:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 12:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-13 12:17:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-13 12:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:17:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:17:42,631 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 12:17:42,796 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:17:42,798 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:17:43,057 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:17:43,057 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:17:43,366 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:17:43,367 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:17:43,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:17:43 BoogieIcfgContainer [2024-10-13 12:17:43,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:17:43,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:17:43,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:17:43,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:17:43,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:17:41" (1/3) ... [2024-10-13 12:17:43,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e87f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:17:43, skipping insertion in model container [2024-10-13 12:17:43,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:42" (2/3) ... [2024-10-13 12:17:43,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e87f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:17:43, skipping insertion in model container [2024-10-13 12:17:43,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:17:43" (3/3) ... [2024-10-13 12:17:43,376 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_power.oepc_pso.oepc_rmo.oepc.i [2024-10-13 12:17:43,390 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:17:43,390 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-13 12:17:43,390 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:17:43,443 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 12:17:43,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-13 12:17:43,496 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-13 12:17:43,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:17:43,501 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 4. Compared 105 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. [2024-10-13 12:17:43,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-13 12:17:43,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-13 12:17:43,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:17:43,523 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;@454d498b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:17:43,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-13 12:17:43,528 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:17:43,528 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-13 12:17:43,528 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:17:43,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:17:43,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-13 12:17:43,529 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 12:17:43,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:17:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash 12835840, now seen corresponding path program 1 times [2024-10-13 12:17:43,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:17:43,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406360158] [2024-10-13 12:17:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:17:43,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:17:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:17:43,903 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 12:17:43,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:17:43,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406360158] [2024-10-13 12:17:43,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406360158] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:17:43,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:17:43,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:17:43,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688741614] [2024-10-13 12:17:43,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:17:43,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:17:43,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:17:43,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:17:43,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:17:43,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-13 12:17:43,943 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) [2024-10-13 12:17:43,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:17:43,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-13 12:17:43,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:17:44,928 INFO L124 PetriNetUnfolderBase]: 3311/5215 cut-off events. [2024-10-13 12:17:44,928 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-13 12:17:44,957 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 33357 event pairs, 2177 based on Foata normal form. 288/5459 useless extension candidates. Maximal degree in co-relation 9883. Up to 3661 conditions per place. [2024-10-13 12:17:44,985 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-10-13 12:17:44,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-10-13 12:17:44,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:17:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:17:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-10-13 12:17:44,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-10-13 12:17:44,996 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-10-13 12:17:44,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-10-13 12:17:45,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 12:17:45,002 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-13 12:17:45,003 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} [2024-10-13 12:17:45,010 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-13 12:17:45,010 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-13 12:17:45,010 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) [2024-10-13 12:17:45,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:17:45,010 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 12:17:45,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:17:45,011 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 12:17:45,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:17:45,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1230100567, now seen corresponding path program 1 times [2024-10-13 12:17:45,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:17:45,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445771547] [2024-10-13 12:17:45,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:17:45,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:17:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:17:45,106 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 12:17:45,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:17:45,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445771547] [2024-10-13 12:17:45,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445771547] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:17:45,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:17:45,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:17:45,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88321491] [2024-10-13 12:17:45,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:17:45,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:17:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:17:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:17:45,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:17:45,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-13 12:17:45,117 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) [2024-10-13 12:17:45,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:17:45,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-13 12:17:45,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:17:45,895 INFO L124 PetriNetUnfolderBase]: 2903/4947 cut-off events. [2024-10-13 12:17:45,895 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-13 12:17:45,906 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 34997 event pairs, 2903 based on Foata normal form. 144/4929 useless extension candidates. Maximal degree in co-relation 9341. Up to 4016 conditions per place. [2024-10-13 12:17:45,928 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-13 12:17:45,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-10-13 12:17:45,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:17:45,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:17:45,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-10-13 12:17:45,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-13 12:17:45,930 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-10-13 12:17:45,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-10-13 12:17:45,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 12:17:45,932 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-13 12:17:45,932 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} [2024-10-13 12:17:45,933 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-13 12:17:45,933 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-13 12:17:45,934 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) [2024-10-13 12:17:45,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:17:45,934 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 12:17:45,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:17:45,934 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 12:17:45,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:17:45,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1230101755, now seen corresponding path program 1 times [2024-10-13 12:17:45,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:17:45,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323587102] [2024-10-13 12:17:45,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:17:45,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:17:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:17:46,235 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 12:17:46,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:17:46,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323587102] [2024-10-13 12:17:46,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323587102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:17:46,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:17:46,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:17:46,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269136994] [2024-10-13 12:17:46,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:17:46,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:17:46,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:17:46,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:17:46,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:17:46,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:17:46,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:17:46,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:17:46,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:17:46,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:17:53,450 INFO L124 PetriNetUnfolderBase]: 38109/54764 cut-off events. [2024-10-13 12:17:53,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:17:53,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106292 conditions, 54764 events. 38109/54764 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2309. Compared 398135 event pairs, 8776 based on Foata normal form. 0/53207 useless extension candidates. Maximal degree in co-relation 106286. Up to 19638 conditions per place. [2024-10-13 12:17:53,851 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 47 selfloop transitions, 8 changer transitions 103/171 dead transitions. [2024-10-13 12:17:53,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 171 transitions, 672 flow [2024-10-13 12:17:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:17:53,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 12:17:53,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 322 transitions. [2024-10-13 12:17:53,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6505050505050505 [2024-10-13 12:17:53,861 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 322 transitions. [2024-10-13 12:17:53,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 171 transitions, 672 flow [2024-10-13 12:17:53,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 171 transitions, 671 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:17:53,867 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-10-13 12:17:53,868 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=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=207, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-10-13 12:17:53,869 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-13 12:17:53,869 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-10-13 12:17:53,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:17:53,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:17:53,870 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 12:17:53,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:17:53,870 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 12:17:53,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:17:53,871 INFO L85 PathProgramCache]: Analyzing trace with hash 2073826458, now seen corresponding path program 1 times [2024-10-13 12:17:53,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:17:53,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360356370] [2024-10-13 12:17:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:17:53,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:17:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:17:54,117 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 12:17:54,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:17:54,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360356370] [2024-10-13 12:17:54,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360356370] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:17:54,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:17:54,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:17:54,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846767153] [2024-10-13 12:17:54,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:17:54,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:17:54,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:17:54,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:17:54,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:17:54,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:17:54,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:17:54,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:17:54,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:17:54,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:18:00,550 INFO L124 PetriNetUnfolderBase]: 28353/41893 cut-off events. [2024-10-13 12:18:00,551 INFO L125 PetriNetUnfolderBase]: For 60245/61305 co-relation queries the response was YES. [2024-10-13 12:18:00,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124073 conditions, 41893 events. 28353/41893 cut-off events. For 60245/61305 co-relation queries the response was YES. Maximal size of possible extension queue 1733. Compared 304841 event pairs, 3512 based on Foata normal form. 1095/42712 useless extension candidates. Maximal degree in co-relation 124058. Up to 15805 conditions per place. [2024-10-13 12:18:01,159 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 62 selfloop transitions, 9 changer transitions 102/186 dead transitions. [2024-10-13 12:18:01,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 186 transitions, 1195 flow [2024-10-13 12:18:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:18:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:18:01,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 338 transitions. [2024-10-13 12:18:01,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145454545454545 [2024-10-13 12:18:01,162 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 10 states and 338 transitions. [2024-10-13 12:18:01,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 186 transitions, 1195 flow [2024-10-13 12:18:01,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 186 transitions, 1049 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-10-13 12:18:01,394 INFO L231 Difference]: Finished difference. Result has 77 places, 55 transitions, 277 flow [2024-10-13 12:18:01,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=277, PETRI_PLACES=77, PETRI_TRANSITIONS=55} [2024-10-13 12:18:01,396 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-10-13 12:18:01,397 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 55 transitions, 277 flow [2024-10-13 12:18:01,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:18:01,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:18:01,398 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 12:18:01,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:18:01,398 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 12:18:01,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:18:01,398 INFO L85 PathProgramCache]: Analyzing trace with hash 309675321, now seen corresponding path program 1 times [2024-10-13 12:18:01,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:18:01,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934013563] [2024-10-13 12:18:01,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:18:01,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:18:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:18:01,550 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 12:18:01,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:18:01,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934013563] [2024-10-13 12:18:01,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934013563] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:18:01,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:18:01,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:18:01,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618062994] [2024-10-13 12:18:01,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:18:01,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:18:01,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:18:01,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:18:01,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:18:01,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:18:01,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 55 transitions, 277 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:18:01,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:18:01,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:18:01,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:18:06,751 INFO L124 PetriNetUnfolderBase]: 26250/38483 cut-off events. [2024-10-13 12:18:06,751 INFO L125 PetriNetUnfolderBase]: For 96816/97153 co-relation queries the response was YES. [2024-10-13 12:18:06,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122973 conditions, 38483 events. 26250/38483 cut-off events. For 96816/97153 co-relation queries the response was YES. Maximal size of possible extension queue 1533. Compared 272493 event pairs, 5654 based on Foata normal form. 910/39353 useless extension candidates. Maximal degree in co-relation 122951. Up to 16557 conditions per place. [2024-10-13 12:18:07,171 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 67 selfloop transitions, 18 changer transitions 84/182 dead transitions. [2024-10-13 12:18:07,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 182 transitions, 1213 flow [2024-10-13 12:18:07,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:18:07,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:18:07,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 342 transitions. [2024-10-13 12:18:07,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6218181818181818 [2024-10-13 12:18:07,175 INFO L175 Difference]: Start difference. First operand has 77 places, 55 transitions, 277 flow. Second operand 10 states and 342 transitions. [2024-10-13 12:18:07,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 182 transitions, 1213 flow [2024-10-13 12:18:07,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 182 transitions, 1166 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-10-13 12:18:07,870 INFO L231 Difference]: Finished difference. Result has 85 places, 62 transitions, 406 flow [2024-10-13 12:18:07,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=406, PETRI_PLACES=85, PETRI_TRANSITIONS=62} [2024-10-13 12:18:07,876 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 23 predicate places. [2024-10-13 12:18:07,876 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 62 transitions, 406 flow [2024-10-13 12:18:07,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:18:07,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:18:07,876 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] [2024-10-13 12:18:07,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 12:18:07,877 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 12:18:07,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:18:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1689113786, now seen corresponding path program 1 times [2024-10-13 12:18:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:18:07,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530893322] [2024-10-13 12:18:07,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:18:07,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:18:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:18:08,126 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 12:18:08,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:18:08,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530893322] [2024-10-13 12:18:08,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530893322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:18:08,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:18:08,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:18:08,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313349423] [2024-10-13 12:18:08,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:18:08,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:18:08,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:18:08,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:18:08,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:18:08,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:18:08,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 62 transitions, 406 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:18:08,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:18:08,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:18:08,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:18:13,706 INFO L124 PetriNetUnfolderBase]: 25022/36725 cut-off events. [2024-10-13 12:18:13,707 INFO L125 PetriNetUnfolderBase]: For 117711/119119 co-relation queries the response was YES. [2024-10-13 12:18:14,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127550 conditions, 36725 events. 25022/36725 cut-off events. For 117711/119119 co-relation queries the response was YES. Maximal size of possible extension queue 1483. Compared 259958 event pairs, 3649 based on Foata normal form. 854/37513 useless extension candidates. Maximal degree in co-relation 127521. Up to 16023 conditions per place. [2024-10-13 12:18:14,179 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 72 selfloop transitions, 22 changer transitions 88/195 dead transitions. [2024-10-13 12:18:14,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 195 transitions, 1563 flow [2024-10-13 12:18:14,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:18:14,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:18:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 336 transitions. [2024-10-13 12:18:14,181 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.610909090909091 [2024-10-13 12:18:14,181 INFO L175 Difference]: Start difference. First operand has 85 places, 62 transitions, 406 flow. Second operand 10 states and 336 transitions. [2024-10-13 12:18:14,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 195 transitions, 1563 flow [2024-10-13 12:18:15,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 195 transitions, 1445 flow, removed 59 selfloop flow, removed 10 redundant places. [2024-10-13 12:18:15,681 INFO L231 Difference]: Finished difference. Result has 87 places, 75 transitions, 619 flow [2024-10-13 12:18:15,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=619, PETRI_PLACES=87, PETRI_TRANSITIONS=75} [2024-10-13 12:18:15,682 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 25 predicate places. [2024-10-13 12:18:15,682 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 75 transitions, 619 flow [2024-10-13 12:18:15,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:18:15,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:18:15,682 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 12:18:15,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 12:18:15,685 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 12:18:15,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:18:15,686 INFO L85 PathProgramCache]: Analyzing trace with hash -325282640, now seen corresponding path program 1 times [2024-10-13 12:18:15,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:18:15,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580062524] [2024-10-13 12:18:15,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:18:15,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:18:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:18:15,846 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 12:18:15,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:18:15,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580062524] [2024-10-13 12:18:15,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580062524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:18:15,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:18:15,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:18:15,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704159716] [2024-10-13 12:18:15,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:18:15,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:18:15,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:18:15,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:18:15,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:18:15,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:18:15,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 75 transitions, 619 flow. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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 12:18:15,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:18:15,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:18:15,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:18:21,840 INFO L124 PetriNetUnfolderBase]: 32685/48370 cut-off events. [2024-10-13 12:18:21,840 INFO L125 PetriNetUnfolderBase]: For 189007/189605 co-relation queries the response was YES. [2024-10-13 12:18:22,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170563 conditions, 48370 events. 32685/48370 cut-off events. For 189007/189605 co-relation queries the response was YES. Maximal size of possible extension queue 1913. Compared 364967 event pairs, 5515 based on Foata normal form. 909/49187 useless extension candidates. Maximal degree in co-relation 170533. Up to 17546 conditions per place. [2024-10-13 12:18:22,398 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 72 selfloop transitions, 31 changer transitions 84/200 dead transitions. [2024-10-13 12:18:22,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 200 transitions, 1677 flow [2024-10-13 12:18:22,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 12:18:22,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 12:18:22,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 335 transitions. [2024-10-13 12:18:22,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090909090909091 [2024-10-13 12:18:22,401 INFO L175 Difference]: Start difference. First operand has 87 places, 75 transitions, 619 flow. Second operand 10 states and 335 transitions. [2024-10-13 12:18:22,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 200 transitions, 1677 flow [2024-10-13 12:18:23,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 200 transitions, 1631 flow, removed 23 selfloop flow, removed 0 redundant places. [2024-10-13 12:18:23,585 INFO L231 Difference]: Finished difference. Result has 99 places, 78 transitions, 809 flow [2024-10-13 12:18:23,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=809, PETRI_PLACES=99, PETRI_TRANSITIONS=78} [2024-10-13 12:18:23,586 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 37 predicate places. [2024-10-13 12:18:23,586 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 78 transitions, 809 flow [2024-10-13 12:18:23,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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 12:18:23,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:18:23,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:18:23,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 12:18:23,587 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 12:18:23,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:18:23,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1488918227, now seen corresponding path program 1 times [2024-10-13 12:18:23,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:18:23,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440841408] [2024-10-13 12:18:23,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:18:23,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:18:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:18:23,668 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 12:18:23,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:18:23,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440841408] [2024-10-13 12:18:23,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440841408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:18:23,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:18:23,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:18:23,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640516872] [2024-10-13 12:18:23,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:18:23,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:18:23,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:18:23,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:18:23,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:18:23,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-13 12:18:23,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 78 transitions, 809 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) [2024-10-13 12:18:23,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:18:23,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-13 12:18:23,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:18:34,079 INFO L124 PetriNetUnfolderBase]: 53474/79497 cut-off events. [2024-10-13 12:18:34,080 INFO L125 PetriNetUnfolderBase]: For 194976/200483 co-relation queries the response was YES. [2024-10-13 12:18:35,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218084 conditions, 79497 events. 53474/79497 cut-off events. For 194976/200483 co-relation queries the response was YES. Maximal size of possible extension queue 2914. Compared 619280 event pairs, 9769 based on Foata normal form. 3551/81403 useless extension candidates. Maximal degree in co-relation 218043. Up to 44202 conditions per place. [2024-10-13 12:18:35,961 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 63 selfloop transitions, 6 changer transitions 0/116 dead transitions. [2024-10-13 12:18:35,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 116 transitions, 1151 flow [2024-10-13 12:18:35,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:18:35,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:18:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-10-13 12:18:35,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-10-13 12:18:35,963 INFO L175 Difference]: Start difference. First operand has 99 places, 78 transitions, 809 flow. Second operand 4 states and 146 transitions. [2024-10-13 12:18:35,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 116 transitions, 1151 flow [2024-10-13 12:18:36,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 116 transitions, 1123 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-10-13 12:18:36,308 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 835 flow [2024-10-13 12:18:36,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=835, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2024-10-13 12:18:36,309 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 29 predicate places. [2024-10-13 12:18:36,309 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 835 flow [2024-10-13 12:18:36,310 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) [2024-10-13 12:18:36,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:18:36,310 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:18:36,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 12:18:36,310 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 12:18:36,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:18:36,312 INFO L85 PathProgramCache]: Analyzing trace with hash 234810587, now seen corresponding path program 1 times [2024-10-13 12:18:36,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:18:36,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648066533] [2024-10-13 12:18:36,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:18:36,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:18:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:18:36,563 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 12:18:36,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:18:36,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648066533] [2024-10-13 12:18:36,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648066533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:18:36,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:18:36,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:18:36,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709377626] [2024-10-13 12:18:36,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:18:36,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:18:36,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:18:36,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:18:36,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:18:36,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-10-13 12:18:36,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 835 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 12:18:36,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:18:36,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-10-13 12:18:36,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand