./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/mix030_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_tso.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 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:30:42,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:30:42,611 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:30:42,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:30:42,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:30:42,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:30:42,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:30:42,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:30:42,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:30:42,643 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:30:42,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:30:42,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:30:42,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:30:42,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:30:42,646 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:30:42,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:30:42,647 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:30:42,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:30:42,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:30:42,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:30:42,650 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:30:42,650 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:30:42,650 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:30:42,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:30:42,650 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:30:42,651 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:30:42,651 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:30:42,651 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:30:42,651 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:30:42,651 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:30:42,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:30:42,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:30:42,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:30:42,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:30:42,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:30:42,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:30:42,654 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:30:42,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:30:42,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:30:42,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:30:42,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:30:42,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:30:42,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa [2024-10-14 19:30:42,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:30:42,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:30:42,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:30:42,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:30:42,862 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:30:42,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_tso.i [2024-10-14 19:30:44,064 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:30:44,235 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:30:44,236 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_tso.i [2024-10-14 19:30:44,252 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483d5e2bf/535fd83cca9747238a2e901efac5c589/FLAGdba44d4d0 [2024-10-14 19:30:44,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483d5e2bf/535fd83cca9747238a2e901efac5c589 [2024-10-14 19:30:44,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:30:44,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:30:44,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:30:44,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:30:44,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:30:44,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbae2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44, skipping insertion in model container [2024-10-14 19:30:44,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,319 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:30:44,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:30:44,595 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:30:44,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:30:44,692 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:30:44,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44 WrapperNode [2024-10-14 19:30:44,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:30:44,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:30:44,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:30:44,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:30:44,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,739 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 171 [2024-10-14 19:30:44,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:30:44,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:30:44,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:30:44,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:30:44,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,787 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 19:30:44,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:30:44,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:30:44,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:30:44,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:30:44,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (1/1) ... [2024-10-14 19:30:44,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:30:44,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:30:44,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 19:30:44,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 19:30:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:30:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:30:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 19:30:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 19:30:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 19:30:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 19:30:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 19:30:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 19:30:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-14 19:30:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-14 19:30:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:30:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:30:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:30:44,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:30:44,883 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:30:44,995 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:30:44,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:30:45,249 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:30:45,249 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:30:45,421 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:30:45,421 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:30:45,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:30:45 BoogieIcfgContainer [2024-10-14 19:30:45,422 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:30:45,423 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:30:45,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:30:45,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:30:45,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:30:44" (1/3) ... [2024-10-14 19:30:45,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b023ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:30:45, skipping insertion in model container [2024-10-14 19:30:45,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:30:44" (2/3) ... [2024-10-14 19:30:45,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b023ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:30:45, skipping insertion in model container [2024-10-14 19:30:45,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:30:45" (3/3) ... [2024-10-14 19:30:45,430 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_tso.i [2024-10-14 19:30:45,443 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:30:45,444 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-14 19:30:45,444 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:30:45,490 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:30:45,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-10-14 19:30:45,546 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-10-14 19:30:45,546 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:30:45,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-10-14 19:30:45,550 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-10-14 19:30:45,552 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-10-14 19:30:45,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:30:45,564 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;@5c06162b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:30:45,565 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 19:30:45,572 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:30:45,572 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-14 19:30:45,572 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:30:45,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:30:45,573 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:30:45,573 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:30:45,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:30:45,577 INFO L85 PathProgramCache]: Analyzing trace with hash -695178262, now seen corresponding path program 1 times [2024-10-14 19:30:45,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:30:45,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4671648] [2024-10-14 19:30:45,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:30:45,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:30:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:30:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:30:46,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:30:46,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4671648] [2024-10-14 19:30:46,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4671648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:30:46,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:30:46,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:30:46,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242599475] [2024-10-14 19:30:46,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:30:46,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:30:46,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:30:46,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:30:46,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:30:46,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 54 [2024-10-14 19:30:46,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:46,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:30:46,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 54 [2024-10-14 19:30:46,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:30:46,460 INFO L124 PetriNetUnfolderBase]: 1323/2219 cut-off events. [2024-10-14 19:30:46,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:30:46,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4163 conditions, 2219 events. 1323/2219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 15785 event pairs, 219 based on Foata normal form. 120/2298 useless extension candidates. Maximal degree in co-relation 4151. Up to 1537 conditions per place. [2024-10-14 19:30:46,481 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 32 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-10-14 19:30:46,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 58 transitions, 200 flow [2024-10-14 19:30:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:30:46,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:30:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-10-14 19:30:46,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7345679012345679 [2024-10-14 19:30:46,492 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 119 transitions. [2024-10-14 19:30:46,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 58 transitions, 200 flow [2024-10-14 19:30:46,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 58 transitions, 196 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:30:46,498 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-10-14 19:30:46,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-10-14 19:30:46,503 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-10-14 19:30:46,504 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-10-14 19:30:46,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:46,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:30:46,504 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:30:46,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:30:46,505 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:30:46,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:30:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1262996493, now seen corresponding path program 1 times [2024-10-14 19:30:46,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:30:46,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716292926] [2024-10-14 19:30:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:30:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:30:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:30:46,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:30:46,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:30:46,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716292926] [2024-10-14 19:30:46,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716292926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:30:46,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:30:46,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:30:46,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311566176] [2024-10-14 19:30:46,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:30:46,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:30:46,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:30:46,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:30:46,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:30:46,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 54 [2024-10-14 19:30:46,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:46,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:30:46,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 54 [2024-10-14 19:30:46,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:30:46,817 INFO L124 PetriNetUnfolderBase]: 1175/2011 cut-off events. [2024-10-14 19:30:46,817 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-14 19:30:46,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3841 conditions, 2011 events. 1175/2011 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 14568 event pairs, 1175 based on Foata normal form. 60/2006 useless extension candidates. Maximal degree in co-relation 3831. Up to 1692 conditions per place. [2024-10-14 19:30:46,825 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 21 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-10-14 19:30:46,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 146 flow [2024-10-14 19:30:46,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:30:46,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:30:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-10-14 19:30:46,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-10-14 19:30:46,828 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 99 transitions. [2024-10-14 19:30:46,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 146 flow [2024-10-14 19:30:46,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:30:46,832 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-10-14 19:30:46,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-10-14 19:30:46,833 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-10-14 19:30:46,833 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-10-14 19:30:46,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:46,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:30:46,833 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:30:46,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:30:46,834 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:30:46,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:30:46,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1262997747, now seen corresponding path program 1 times [2024-10-14 19:30:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:30:46,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792176907] [2024-10-14 19:30:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:30:46,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:30:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:30:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:30:47,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:30:47,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792176907] [2024-10-14 19:30:47,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792176907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:30:47,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:30:47,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:30:47,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142715691] [2024-10-14 19:30:47,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:30:47,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:30:47,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:30:47,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:30:47,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:30:47,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-14 19:30:47,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:47,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:30:47,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-14 19:30:47,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:30:47,805 INFO L124 PetriNetUnfolderBase]: 3832/6557 cut-off events. [2024-10-14 19:30:47,806 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:30:47,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11977 conditions, 6557 events. 3832/6557 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 48666 event pairs, 1168 based on Foata normal form. 0/6316 useless extension candidates. Maximal degree in co-relation 11971. Up to 3323 conditions per place. [2024-10-14 19:30:47,829 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 38 selfloop transitions, 3 changer transitions 52/111 dead transitions. [2024-10-14 19:30:47,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 111 transitions, 424 flow [2024-10-14 19:30:47,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 19:30:47,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 19:30:47,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 279 transitions. [2024-10-14 19:30:47,834 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-10-14 19:30:47,835 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 8 states and 279 transitions. [2024-10-14 19:30:47,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 111 transitions, 424 flow [2024-10-14 19:30:47,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 111 transitions, 423 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:30:47,837 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 128 flow [2024-10-14 19:30:47,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=128, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-10-14 19:30:47,838 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2024-10-14 19:30:47,838 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 128 flow [2024-10-14 19:30:47,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:47,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:30:47,838 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:30:47,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:30:47,839 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:30:47,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:30:47,839 INFO L85 PathProgramCache]: Analyzing trace with hash 779691890, now seen corresponding path program 1 times [2024-10-14 19:30:47,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:30:47,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53355017] [2024-10-14 19:30:47,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:30:47,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:30:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:30:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:30:48,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:30:48,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53355017] [2024-10-14 19:30:48,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53355017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:30:48,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:30:48,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:30:48,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206304075] [2024-10-14 19:30:48,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:30:48,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:30:48,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:30:48,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:30:48,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:30:48,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-14 19:30:48,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:48,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:30:48,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-14 19:30:48,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:30:50,028 INFO L124 PetriNetUnfolderBase]: 9763/15303 cut-off events. [2024-10-14 19:30:50,028 INFO L125 PetriNetUnfolderBase]: For 10527/10527 co-relation queries the response was YES. [2024-10-14 19:30:50,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36269 conditions, 15303 events. 9763/15303 cut-off events. For 10527/10527 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 115903 event pairs, 1445 based on Foata normal form. 424/15624 useless extension candidates. Maximal degree in co-relation 36257. Up to 5625 conditions per place. [2024-10-14 19:30:50,107 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 47 selfloop transitions, 11 changer transitions 69/142 dead transitions. [2024-10-14 19:30:50,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 142 transitions, 704 flow [2024-10-14 19:30:50,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:30:50,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:30:50,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2024-10-14 19:30:50,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6037037037037037 [2024-10-14 19:30:50,109 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 128 flow. Second operand 10 states and 326 transitions. [2024-10-14 19:30:50,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 142 transitions, 704 flow [2024-10-14 19:30:50,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 142 transitions, 685 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-14 19:30:50,320 INFO L231 Difference]: Finished difference. Result has 74 places, 53 transitions, 259 flow [2024-10-14 19:30:50,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=259, PETRI_PLACES=74, PETRI_TRANSITIONS=53} [2024-10-14 19:30:50,321 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2024-10-14 19:30:50,321 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 53 transitions, 259 flow [2024-10-14 19:30:50,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:50,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:30:50,322 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:30:50,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:30:50,322 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:30:50,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:30:50,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1146787146, now seen corresponding path program 1 times [2024-10-14 19:30:50,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:30:50,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301235355] [2024-10-14 19:30:50,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:30:50,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:30:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:30:50,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:30:50,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:30:50,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301235355] [2024-10-14 19:30:50,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301235355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:30:50,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:30:50,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:30:50,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144186929] [2024-10-14 19:30:50,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:30:50,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:30:50,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:30:50,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:30:50,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:30:51,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-14 19:30:51,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 53 transitions, 259 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:51,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:30:51,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-14 19:30:51,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:30:52,648 INFO L124 PetriNetUnfolderBase]: 9395/15539 cut-off events. [2024-10-14 19:30:52,648 INFO L125 PetriNetUnfolderBase]: For 41054/41054 co-relation queries the response was YES. [2024-10-14 19:30:52,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52583 conditions, 15539 events. 9395/15539 cut-off events. For 41054/41054 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 124007 event pairs, 985 based on Foata normal form. 298/15797 useless extension candidates. Maximal degree in co-relation 52563. Up to 6703 conditions per place. [2024-10-14 19:30:52,733 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 60 selfloop transitions, 23 changer transitions 70/168 dead transitions. [2024-10-14 19:30:52,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 1293 flow [2024-10-14 19:30:52,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:30:52,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:30:52,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2024-10-14 19:30:52,735 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6092592592592593 [2024-10-14 19:30:52,735 INFO L175 Difference]: Start difference. First operand has 74 places, 53 transitions, 259 flow. Second operand 10 states and 329 transitions. [2024-10-14 19:30:52,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 1293 flow [2024-10-14 19:30:52,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 168 transitions, 1275 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-14 19:30:52,778 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 548 flow [2024-10-14 19:30:52,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=548, PETRI_PLACES=83, PETRI_TRANSITIONS=72} [2024-10-14 19:30:52,779 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 22 predicate places. [2024-10-14 19:30:52,779 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 548 flow [2024-10-14 19:30:52,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:52,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:30:52,780 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] [2024-10-14 19:30:52,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:30:52,780 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:30:52,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:30:52,781 INFO L85 PathProgramCache]: Analyzing trace with hash 2005992067, now seen corresponding path program 1 times [2024-10-14 19:30:52,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:30:52,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943773538] [2024-10-14 19:30:52,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:30:52,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:30:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:30:52,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:30:52,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:30:52,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943773538] [2024-10-14 19:30:52,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943773538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:30:52,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:30:52,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:30:52,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559004082] [2024-10-14 19:30:52,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:30:52,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:30:52,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:30:52,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:30:52,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:30:52,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-14 19:30:52,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 548 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:52,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:30:52,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-14 19:30:52,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:30:54,886 INFO L124 PetriNetUnfolderBase]: 9597/16373 cut-off events. [2024-10-14 19:30:54,886 INFO L125 PetriNetUnfolderBase]: For 67579/68058 co-relation queries the response was YES. [2024-10-14 19:30:54,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62296 conditions, 16373 events. 9597/16373 cut-off events. For 67579/68058 co-relation queries the response was YES. Maximal size of possible extension queue 915. Compared 141199 event pairs, 3534 based on Foata normal form. 409/16152 useless extension candidates. Maximal degree in co-relation 62268. Up to 5942 conditions per place. [2024-10-14 19:30:54,980 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 56 selfloop transitions, 7 changer transitions 41/135 dead transitions. [2024-10-14 19:30:54,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 135 transitions, 1170 flow [2024-10-14 19:30:54,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:30:54,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:30:54,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2024-10-14 19:30:54,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-10-14 19:30:54,982 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 548 flow. Second operand 7 states and 234 transitions. [2024-10-14 19:30:54,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 135 transitions, 1170 flow [2024-10-14 19:30:55,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 135 transitions, 1130 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-10-14 19:30:55,168 INFO L231 Difference]: Finished difference. Result has 84 places, 71 transitions, 551 flow [2024-10-14 19:30:55,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=551, PETRI_PLACES=84, PETRI_TRANSITIONS=71} [2024-10-14 19:30:55,169 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 23 predicate places. [2024-10-14 19:30:55,169 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 71 transitions, 551 flow [2024-10-14 19:30:55,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:55,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:30:55,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:30:55,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:30:55,170 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:30:55,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:30:55,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1626753565, now seen corresponding path program 1 times [2024-10-14 19:30:55,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:30:55,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098865929] [2024-10-14 19:30:55,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:30:55,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:30:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:30:55,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:30:55,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:30:55,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098865929] [2024-10-14 19:30:55,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098865929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:30:55,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:30:55,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:30:55,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999085465] [2024-10-14 19:30:55,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:30:55,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:30:55,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:30:55,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:30:55,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:30:55,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-10-14 19:30:55,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 71 transitions, 551 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:30:55,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:30:55,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-10-14 19:30:55,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:30:59,597 INFO L124 PetriNetUnfolderBase]: 29954/44270 cut-off events. [2024-10-14 19:30:59,598 INFO L125 PetriNetUnfolderBase]: For 109720/121738 co-relation queries the response was YES. [2024-10-14 19:30:59,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140861 conditions, 44270 events. 29954/44270 cut-off events. For 109720/121738 co-relation queries the response was YES. Maximal size of possible extension queue 2145. Compared 337359 event pairs, 5826 based on Foata normal form. 3184/45549 useless extension candidates. Maximal degree in co-relation 140831. Up to 24456 conditions per place. [2024-10-14 19:30:59,884 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 70 selfloop transitions, 6 changer transitions 0/111 dead transitions. [2024-10-14 19:30:59,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 111 transitions, 925 flow [2024-10-14 19:30:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:30:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 19:30:59,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2024-10-14 19:30:59,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6527777777777778 [2024-10-14 19:30:59,885 INFO L175 Difference]: Start difference. First operand has 84 places, 71 transitions, 551 flow. Second operand 4 states and 141 transitions. [2024-10-14 19:30:59,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 111 transitions, 925 flow [2024-10-14 19:31:00,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 111 transitions, 894 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-10-14 19:31:00,199 INFO L231 Difference]: Finished difference. Result has 78 places, 76 transitions, 574 flow [2024-10-14 19:31:00,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=574, PETRI_PLACES=78, PETRI_TRANSITIONS=76} [2024-10-14 19:31:00,200 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2024-10-14 19:31:00,200 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 76 transitions, 574 flow [2024-10-14 19:31:00,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:00,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:00,201 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] [2024-10-14 19:31:00,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 19:31:00,201 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:00,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:00,201 INFO L85 PathProgramCache]: Analyzing trace with hash 335113011, now seen corresponding path program 1 times [2024-10-14 19:31:00,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:00,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953728175] [2024-10-14 19:31:00,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:00,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:00,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:00,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:00,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953728175] [2024-10-14 19:31:00,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953728175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:00,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:00,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:31:00,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907803163] [2024-10-14 19:31:00,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:00,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:31:00,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:00,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:31:00,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:31:00,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-14 19:31:00,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 76 transitions, 574 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:00,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:00,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-14 19:31:00,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:04,722 INFO L124 PetriNetUnfolderBase]: 26170/43528 cut-off events. [2024-10-14 19:31:04,722 INFO L125 PetriNetUnfolderBase]: For 116668/120865 co-relation queries the response was YES. [2024-10-14 19:31:04,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147292 conditions, 43528 events. 26170/43528 cut-off events. For 116668/120865 co-relation queries the response was YES. Maximal size of possible extension queue 2343. Compared 399802 event pairs, 11124 based on Foata normal form. 1836/41236 useless extension candidates. Maximal degree in co-relation 147265. Up to 16229 conditions per place. [2024-10-14 19:31:05,107 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 85 selfloop transitions, 17 changer transitions 4/138 dead transitions. [2024-10-14 19:31:05,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 138 transitions, 1168 flow [2024-10-14 19:31:05,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:31:05,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:31:05,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2024-10-14 19:31:05,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6243386243386243 [2024-10-14 19:31:05,109 INFO L175 Difference]: Start difference. First operand has 78 places, 76 transitions, 574 flow. Second operand 7 states and 236 transitions. [2024-10-14 19:31:05,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 138 transitions, 1168 flow [2024-10-14 19:31:05,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 138 transitions, 1154 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-10-14 19:31:05,129 INFO L231 Difference]: Finished difference. Result has 88 places, 81 transitions, 686 flow [2024-10-14 19:31:05,129 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=686, PETRI_PLACES=88, PETRI_TRANSITIONS=81} [2024-10-14 19:31:05,130 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2024-10-14 19:31:05,130 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 81 transitions, 686 flow [2024-10-14 19:31:05,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:05,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:05,130 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] [2024-10-14 19:31:05,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 19:31:05,131 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:05,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:05,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1803320923, now seen corresponding path program 1 times [2024-10-14 19:31:05,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:05,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441220805] [2024-10-14 19:31:05,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:05,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:05,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:05,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441220805] [2024-10-14 19:31:05,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441220805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:05,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:05,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:31:05,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216420316] [2024-10-14 19:31:05,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:05,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:31:05,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:05,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:31:05,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:31:05,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-10-14 19:31:05,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 81 transitions, 686 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 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) [2024-10-14 19:31:05,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:05,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-10-14 19:31:05,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:10,393 INFO L124 PetriNetUnfolderBase]: 37111/54833 cut-off events. [2024-10-14 19:31:10,393 INFO L125 PetriNetUnfolderBase]: For 133047/149271 co-relation queries the response was YES. [2024-10-14 19:31:10,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184777 conditions, 54833 events. 37111/54833 cut-off events. For 133047/149271 co-relation queries the response was YES. Maximal size of possible extension queue 2705. Compared 425657 event pairs, 4429 based on Foata normal form. 4299/57098 useless extension candidates. Maximal degree in co-relation 184745. Up to 23429 conditions per place. [2024-10-14 19:31:10,725 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 88 selfloop transitions, 10 changer transitions 5/138 dead transitions. [2024-10-14 19:31:10,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 138 transitions, 1210 flow [2024-10-14 19:31:10,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:31:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:31:10,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 180 transitions. [2024-10-14 19:31:10,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-14 19:31:10,726 INFO L175 Difference]: Start difference. First operand has 88 places, 81 transitions, 686 flow. Second operand 5 states and 180 transitions. [2024-10-14 19:31:10,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 138 transitions, 1210 flow [2024-10-14 19:31:11,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 138 transitions, 1172 flow, removed 13 selfloop flow, removed 1 redundant places. [2024-10-14 19:31:11,124 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 657 flow [2024-10-14 19:31:11,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=657, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-10-14 19:31:11,125 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 32 predicate places. [2024-10-14 19:31:11,125 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 657 flow [2024-10-14 19:31:11,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 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) [2024-10-14 19:31:11,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:11,125 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:11,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 19:31:11,125 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:11,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:11,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1546864659, now seen corresponding path program 1 times [2024-10-14 19:31:11,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:11,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604243039] [2024-10-14 19:31:11,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:11,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:11,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:11,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604243039] [2024-10-14 19:31:11,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604243039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:11,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:11,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:31:11,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159920717] [2024-10-14 19:31:11,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:11,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:31:11,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:11,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:31:11,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:31:11,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-10-14 19:31:11,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:11,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:11,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-10-14 19:31:11,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:15,451 INFO L124 PetriNetUnfolderBase]: 28075/41441 cut-off events. [2024-10-14 19:31:15,451 INFO L125 PetriNetUnfolderBase]: For 119426/138009 co-relation queries the response was YES. [2024-10-14 19:31:15,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152827 conditions, 41441 events. 28075/41441 cut-off events. For 119426/138009 co-relation queries the response was YES. Maximal size of possible extension queue 2221. Compared 313502 event pairs, 1862 based on Foata normal form. 3389/43111 useless extension candidates. Maximal degree in co-relation 152792. Up to 13692 conditions per place. [2024-10-14 19:31:15,742 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 97 selfloop transitions, 14 changer transitions 5/151 dead transitions. [2024-10-14 19:31:15,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 151 transitions, 1290 flow [2024-10-14 19:31:15,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:31:15,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:31:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 217 transitions. [2024-10-14 19:31:15,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6697530864197531 [2024-10-14 19:31:15,744 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 657 flow. Second operand 6 states and 217 transitions. [2024-10-14 19:31:15,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 151 transitions, 1290 flow [2024-10-14 19:31:15,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 151 transitions, 1247 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-10-14 19:31:15,778 INFO L231 Difference]: Finished difference. Result has 89 places, 84 transitions, 684 flow [2024-10-14 19:31:15,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=684, PETRI_PLACES=89, PETRI_TRANSITIONS=84} [2024-10-14 19:31:15,778 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 28 predicate places. [2024-10-14 19:31:15,778 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 84 transitions, 684 flow [2024-10-14 19:31:15,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:15,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:15,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:15,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 19:31:15,779 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:15,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:15,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1822220119, now seen corresponding path program 1 times [2024-10-14 19:31:15,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:15,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567026201] [2024-10-14 19:31:15,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:15,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:16,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:16,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:16,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567026201] [2024-10-14 19:31:16,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567026201] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:16,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:16,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:31:16,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836475810] [2024-10-14 19:31:16,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:16,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 19:31:16,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:16,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 19:31:16,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:31:16,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-10-14 19:31:16,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 84 transitions, 684 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:16,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:16,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-10-14 19:31:16,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:31:19,635 INFO L124 PetriNetUnfolderBase]: 25067/36977 cut-off events. [2024-10-14 19:31:19,635 INFO L125 PetriNetUnfolderBase]: For 147479/166672 co-relation queries the response was YES. [2024-10-14 19:31:19,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147259 conditions, 36977 events. 25067/36977 cut-off events. For 147479/166672 co-relation queries the response was YES. Maximal size of possible extension queue 2209. Compared 280448 event pairs, 1710 based on Foata normal form. 2557/37847 useless extension candidates. Maximal degree in co-relation 147227. Up to 13692 conditions per place. [2024-10-14 19:31:19,828 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 80 selfloop transitions, 18 changer transitions 11/144 dead transitions. [2024-10-14 19:31:19,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 144 transitions, 1211 flow [2024-10-14 19:31:19,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:31:19,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:31:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 236 transitions. [2024-10-14 19:31:19,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6243386243386243 [2024-10-14 19:31:19,830 INFO L175 Difference]: Start difference. First operand has 89 places, 84 transitions, 684 flow. Second operand 7 states and 236 transitions. [2024-10-14 19:31:19,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 144 transitions, 1211 flow [2024-10-14 19:31:20,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 144 transitions, 1104 flow, removed 41 selfloop flow, removed 8 redundant places. [2024-10-14 19:31:20,259 INFO L231 Difference]: Finished difference. Result has 89 places, 82 transitions, 627 flow [2024-10-14 19:31:20,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=627, PETRI_PLACES=89, PETRI_TRANSITIONS=82} [2024-10-14 19:31:20,260 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 28 predicate places. [2024-10-14 19:31:20,260 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 82 transitions, 627 flow [2024-10-14 19:31:20,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:20,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:31:20,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:31:20,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 19:31:20,260 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:31:20,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:31:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1514265962, now seen corresponding path program 1 times [2024-10-14 19:31:20,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:31:20,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780927886] [2024-10-14 19:31:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:31:20,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:31:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:31:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:31:20,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:31:20,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780927886] [2024-10-14 19:31:20,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780927886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:31:20,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:31:20,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 19:31:20,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686718866] [2024-10-14 19:31:20,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:31:20,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 19:31:20,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:31:20,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 19:31:20,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:31:20,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 54 [2024-10-14 19:31:20,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 82 transitions, 627 flow. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:31:20,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:31:20,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 54 [2024-10-14 19:31:20,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand