./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c -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 0f1f05cefb3bd84a08d6d936499ca6f215f6edf0bfbf58f9874b646b6408f7c8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:17:33,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:17:33,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:17:33,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:17:33,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:17:33,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:17:33,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:17:33,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:17:33,284 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:17:33,284 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:17:33,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:17:33,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:17:33,286 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:17:33,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:17:33,286 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:17:33,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:17:33,287 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:17:33,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:17:33,288 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:17:33,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:17:33,289 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:17:33,291 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:17:33,292 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:17:33,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:17:33,292 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:17:33,293 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:17:33,293 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:17:33,293 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:17:33,293 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:17:33,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:17:33,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:17:33,294 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:17:33,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:17:33,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:17:33,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:17:33,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:17:33,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:17:33,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:17:33,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:17:33,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:17:33,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:17:33,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:17:33,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1f05cefb3bd84a08d6d936499ca6f215f6edf0bfbf58f9874b646b6408f7c8 [2024-10-24 19:17:33,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:17:33,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:17:33,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:17:33,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:17:33,574 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:17:33,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2024-10-24 19:17:35,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:17:35,231 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:17:35,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2024-10-24 19:17:35,240 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2cd92029/98634efa2e9142d8b197a9a1b0ede48c/FLAG8234407ef [2024-10-24 19:17:35,252 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2cd92029/98634efa2e9142d8b197a9a1b0ede48c [2024-10-24 19:17:35,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:17:35,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:17:35,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:17:35,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:17:35,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:17:35,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b04ab21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35, skipping insertion in model container [2024-10-24 19:17:35,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:17:35,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:17:35,557 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:17:35,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:17:35,600 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:17:35,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35 WrapperNode [2024-10-24 19:17:35,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:17:35,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:17:35,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:17:35,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:17:35,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,648 INFO L138 Inliner]: procedures = 21, calls = 96, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 254 [2024-10-24 19:17:35,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:17:35,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:17:35,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:17:35,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:17:35,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,665 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,687 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 19:17:35,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:17:35,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:17:35,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:17:35,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:17:35,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (1/1) ... [2024-10-24 19:17:35,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:17:35,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:17:35,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 19:17:35,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 19:17:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:17:35,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 19:17:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 19:17:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 19:17:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 19:17:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 19:17:35,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 19:17:35,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:17:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:17:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:17:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:17:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:17:35,820 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:17:35,911 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:17:35,913 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:17:36,211 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:17:36,212 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:17:36,510 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:17:36,511 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:17:36,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:17:36 BoogieIcfgContainer [2024-10-24 19:17:36,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:17:36,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:17:36,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:17:36,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:17:36,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:17:35" (1/3) ... [2024-10-24 19:17:36,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6668af7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:17:36, skipping insertion in model container [2024-10-24 19:17:36,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:35" (2/3) ... [2024-10-24 19:17:36,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6668af7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:17:36, skipping insertion in model container [2024-10-24 19:17:36,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:17:36" (3/3) ... [2024-10-24 19:17:36,521 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2024-10-24 19:17:36,538 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:17:36,540 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:17:36,540 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:17:36,588 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-24 19:17:36,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 60 transitions, 141 flow [2024-10-24 19:17:36,682 INFO L124 PetriNetUnfolderBase]: 0/57 cut-off events. [2024-10-24 19:17:36,683 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-24 19:17:36,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 57 events. 0/57 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-24 19:17:36,688 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 60 transitions, 141 flow [2024-10-24 19:17:36,692 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 56 transitions, 130 flow [2024-10-24 19:17:36,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:17:36,713 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;@4a71aeb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:17:36,714 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-24 19:17:36,739 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:17:36,741 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2024-10-24 19:17:36,741 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-24 19:17:36,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:36,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:36,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:36,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:36,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1618045045, now seen corresponding path program 1 times [2024-10-24 19:17:36,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:36,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340436519] [2024-10-24 19:17:36,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:36,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:37,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:37,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340436519] [2024-10-24 19:17:37,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340436519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:37,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:37,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:17:37,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922752094] [2024-10-24 19:17:37,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:37,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:17:37,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:37,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:17:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:17:37,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-10-24 19:17:37,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 130 flow. Second operand has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:37,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:37,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-10-24 19:17:37,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:38,849 INFO L124 PetriNetUnfolderBase]: 4441/7447 cut-off events. [2024-10-24 19:17:38,850 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2024-10-24 19:17:38,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14555 conditions, 7447 events. 4441/7447 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 50319 event pairs, 1599 based on Foata normal form. 6/7364 useless extension candidates. Maximal degree in co-relation 13435. Up to 2233 conditions per place. [2024-10-24 19:17:38,913 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 135 selfloop transitions, 15 changer transitions 18/187 dead transitions. [2024-10-24 19:17:38,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 187 transitions, 782 flow [2024-10-24 19:17:38,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 19:17:38,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-24 19:17:38,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 427 transitions. [2024-10-24 19:17:38,929 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.646969696969697 [2024-10-24 19:17:38,932 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 130 flow. Second operand 11 states and 427 transitions. [2024-10-24 19:17:38,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 187 transitions, 782 flow [2024-10-24 19:17:38,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 187 transitions, 734 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-24 19:17:38,961 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 206 flow [2024-10-24 19:17:38,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=206, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-10-24 19:17:38,968 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 6 predicate places. [2024-10-24 19:17:38,969 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 206 flow [2024-10-24 19:17:38,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:38,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:38,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:38,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:17:38,970 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:38,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:38,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1373225363, now seen corresponding path program 2 times [2024-10-24 19:17:38,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:38,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433620003] [2024-10-24 19:17:38,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:38,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:39,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:39,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433620003] [2024-10-24 19:17:39,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433620003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:39,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:39,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 19:17:39,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103050699] [2024-10-24 19:17:39,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:39,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 19:17:39,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:39,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 19:17:39,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 19:17:39,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-10-24 19:17:39,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 206 flow. Second operand has 8 states, 8 states have (on average 26.625) internal successors, (213), 8 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:39,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:39,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-10-24 19:17:39,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:40,964 INFO L124 PetriNetUnfolderBase]: 6540/10846 cut-off events. [2024-10-24 19:17:40,964 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-10-24 19:17:40,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21747 conditions, 10846 events. 6540/10846 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 73844 event pairs, 2248 based on Foata normal form. 122/10702 useless extension candidates. Maximal degree in co-relation 21720. Up to 8293 conditions per place. [2024-10-24 19:17:41,033 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 99 selfloop transitions, 21 changer transitions 0/154 dead transitions. [2024-10-24 19:17:41,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 154 transitions, 620 flow [2024-10-24 19:17:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:17:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:17:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 297 transitions. [2024-10-24 19:17:41,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-10-24 19:17:41,104 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 206 flow. Second operand 8 states and 297 transitions. [2024-10-24 19:17:41,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 154 transitions, 620 flow [2024-10-24 19:17:41,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 154 transitions, 618 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-24 19:17:41,115 INFO L231 Difference]: Finished difference. Result has 80 places, 91 transitions, 330 flow [2024-10-24 19:17:41,116 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=330, PETRI_PLACES=80, PETRI_TRANSITIONS=91} [2024-10-24 19:17:41,116 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 14 predicate places. [2024-10-24 19:17:41,117 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 91 transitions, 330 flow [2024-10-24 19:17:41,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.625) internal successors, (213), 8 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:41,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:41,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:41,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:17:41,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:41,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:41,120 INFO L85 PathProgramCache]: Analyzing trace with hash 607216483, now seen corresponding path program 3 times [2024-10-24 19:17:41,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:41,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443710070] [2024-10-24 19:17:41,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:41,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:41,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:41,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443710070] [2024-10-24 19:17:41,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443710070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:41,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:41,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:17:41,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140583380] [2024-10-24 19:17:41,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:41,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:17:41,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:41,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:17:41,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:17:41,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2024-10-24 19:17:41,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 91 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:41,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:41,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2024-10-24 19:17:41,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:41,798 INFO L124 PetriNetUnfolderBase]: 3715/7293 cut-off events. [2024-10-24 19:17:41,798 INFO L125 PetriNetUnfolderBase]: For 1174/1207 co-relation queries the response was YES. [2024-10-24 19:17:41,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15505 conditions, 7293 events. 3715/7293 cut-off events. For 1174/1207 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 56496 event pairs, 2476 based on Foata normal form. 121/7111 useless extension candidates. Maximal degree in co-relation 12316. Up to 4345 conditions per place. [2024-10-24 19:17:41,854 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 58 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-10-24 19:17:41,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 109 transitions, 504 flow [2024-10-24 19:17:41,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:17:41,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:17:41,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-10-24 19:17:41,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2024-10-24 19:17:41,856 INFO L175 Difference]: Start difference. First operand has 80 places, 91 transitions, 330 flow. Second operand 3 states and 128 transitions. [2024-10-24 19:17:41,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 109 transitions, 504 flow [2024-10-24 19:17:41,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 109 transitions, 504 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 19:17:41,866 INFO L231 Difference]: Finished difference. Result has 83 places, 91 transitions, 340 flow [2024-10-24 19:17:41,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=83, PETRI_TRANSITIONS=91} [2024-10-24 19:17:41,867 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2024-10-24 19:17:41,868 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 91 transitions, 340 flow [2024-10-24 19:17:41,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:41,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:41,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:41,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:17:41,869 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:41,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:41,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1819799741, now seen corresponding path program 4 times [2024-10-24 19:17:41,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:41,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359008171] [2024-10-24 19:17:41,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:41,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:41,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:41,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359008171] [2024-10-24 19:17:41,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359008171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:41,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:41,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:17:41,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026263527] [2024-10-24 19:17:41,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:41,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:17:41,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:41,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:17:41,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:17:41,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2024-10-24 19:17:41,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 91 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:41,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:41,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2024-10-24 19:17:41,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:42,728 INFO L124 PetriNetUnfolderBase]: 3611/7230 cut-off events. [2024-10-24 19:17:42,729 INFO L125 PetriNetUnfolderBase]: For 1524/1582 co-relation queries the response was YES. [2024-10-24 19:17:42,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15955 conditions, 7230 events. 3611/7230 cut-off events. For 1524/1582 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 57341 event pairs, 2624 based on Foata normal form. 102/7017 useless extension candidates. Maximal degree in co-relation 12615. Up to 4482 conditions per place. [2024-10-24 19:17:42,805 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 58 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-10-24 19:17:42,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 109 transitions, 523 flow [2024-10-24 19:17:42,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:17:42,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:17:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 127 transitions. [2024-10-24 19:17:42,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7055555555555556 [2024-10-24 19:17:42,807 INFO L175 Difference]: Start difference. First operand has 83 places, 91 transitions, 340 flow. Second operand 3 states and 127 transitions. [2024-10-24 19:17:42,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 109 transitions, 523 flow [2024-10-24 19:17:42,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 109 transitions, 519 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:17:42,820 INFO L231 Difference]: Finished difference. Result has 84 places, 91 transitions, 346 flow [2024-10-24 19:17:42,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=84, PETRI_TRANSITIONS=91} [2024-10-24 19:17:42,822 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 18 predicate places. [2024-10-24 19:17:42,823 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 91 transitions, 346 flow [2024-10-24 19:17:42,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:42,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:42,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:42,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:17:42,824 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:42,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:42,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1160101649, now seen corresponding path program 5 times [2024-10-24 19:17:42,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:42,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543205375] [2024-10-24 19:17:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:42,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:43,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:43,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543205375] [2024-10-24 19:17:43,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543205375] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:43,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:43,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:17:43,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835691530] [2024-10-24 19:17:43,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:43,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:17:43,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:43,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:17:43,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:17:43,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-10-24 19:17:43,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 91 transitions, 346 flow. Second operand has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:43,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:43,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-10-24 19:17:43,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:44,357 INFO L124 PetriNetUnfolderBase]: 7144/12461 cut-off events. [2024-10-24 19:17:44,358 INFO L125 PetriNetUnfolderBase]: For 3536/3617 co-relation queries the response was YES. [2024-10-24 19:17:44,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29498 conditions, 12461 events. 7144/12461 cut-off events. For 3536/3617 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 94199 event pairs, 2320 based on Foata normal form. 22/12227 useless extension candidates. Maximal degree in co-relation 19386. Up to 3074 conditions per place. [2024-10-24 19:17:44,559 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 184 selfloop transitions, 26 changer transitions 18/257 dead transitions. [2024-10-24 19:17:44,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 257 transitions, 1326 flow [2024-10-24 19:17:44,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 19:17:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-24 19:17:44,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 436 transitions. [2024-10-24 19:17:44,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6606060606060606 [2024-10-24 19:17:44,562 INFO L175 Difference]: Start difference. First operand has 84 places, 91 transitions, 346 flow. Second operand 11 states and 436 transitions. [2024-10-24 19:17:44,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 257 transitions, 1326 flow [2024-10-24 19:17:44,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 257 transitions, 1322 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:17:44,578 INFO L231 Difference]: Finished difference. Result has 98 places, 112 transitions, 549 flow [2024-10-24 19:17:44,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=549, PETRI_PLACES=98, PETRI_TRANSITIONS=112} [2024-10-24 19:17:44,579 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 32 predicate places. [2024-10-24 19:17:44,579 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 112 transitions, 549 flow [2024-10-24 19:17:44,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:44,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:44,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:44,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:17:44,580 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:44,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:44,581 INFO L85 PathProgramCache]: Analyzing trace with hash -596923145, now seen corresponding path program 6 times [2024-10-24 19:17:44,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:44,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629309238] [2024-10-24 19:17:44,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:44,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:44,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:44,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629309238] [2024-10-24 19:17:44,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629309238] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:44,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:44,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:17:44,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117372762] [2024-10-24 19:17:44,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:44,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:17:44,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:44,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:17:44,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:17:44,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-10-24 19:17:44,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 112 transitions, 549 flow. Second operand has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:44,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:44,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-10-24 19:17:44,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:46,526 INFO L124 PetriNetUnfolderBase]: 10731/19003 cut-off events. [2024-10-24 19:17:46,527 INFO L125 PetriNetUnfolderBase]: For 5536/5594 co-relation queries the response was YES. [2024-10-24 19:17:46,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45129 conditions, 19003 events. 10731/19003 cut-off events. For 5536/5594 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 150488 event pairs, 2411 based on Foata normal form. 144/18704 useless extension candidates. Maximal degree in co-relation 44997. Up to 4897 conditions per place. [2024-10-24 19:17:46,822 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 127 selfloop transitions, 36 changer transitions 2/227 dead transitions. [2024-10-24 19:17:46,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 227 transitions, 1239 flow [2024-10-24 19:17:46,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:17:46,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:17:46,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 344 transitions. [2024-10-24 19:17:46,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6370370370370371 [2024-10-24 19:17:46,828 INFO L175 Difference]: Start difference. First operand has 98 places, 112 transitions, 549 flow. Second operand 9 states and 344 transitions. [2024-10-24 19:17:46,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 227 transitions, 1239 flow [2024-10-24 19:17:46,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 227 transitions, 1231 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-24 19:17:46,887 INFO L231 Difference]: Finished difference. Result has 108 places, 139 transitions, 814 flow [2024-10-24 19:17:46,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=814, PETRI_PLACES=108, PETRI_TRANSITIONS=139} [2024-10-24 19:17:46,890 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 42 predicate places. [2024-10-24 19:17:46,890 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 139 transitions, 814 flow [2024-10-24 19:17:46,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.0) internal successors, (196), 7 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:46,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:46,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:46,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:17:46,891 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:46,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:46,892 INFO L85 PathProgramCache]: Analyzing trace with hash 232964883, now seen corresponding path program 7 times [2024-10-24 19:17:46,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:46,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932790538] [2024-10-24 19:17:46,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:46,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:47,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:47,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:47,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932790538] [2024-10-24 19:17:47,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932790538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:47,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:47,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:17:47,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140538576] [2024-10-24 19:17:47,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:47,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:17:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:17:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:17:47,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-10-24 19:17:47,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 139 transitions, 814 flow. Second operand has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:47,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:47,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-10-24 19:17:47,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:49,436 INFO L124 PetriNetUnfolderBase]: 12725/21517 cut-off events. [2024-10-24 19:17:49,436 INFO L125 PetriNetUnfolderBase]: For 18748/19410 co-relation queries the response was YES. [2024-10-24 19:17:49,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59319 conditions, 21517 events. 12725/21517 cut-off events. For 18748/19410 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 167556 event pairs, 4560 based on Foata normal form. 445/21405 useless extension candidates. Maximal degree in co-relation 56416. Up to 6250 conditions per place. [2024-10-24 19:17:49,645 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 221 selfloop transitions, 29 changer transitions 23/311 dead transitions. [2024-10-24 19:17:49,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 311 transitions, 2130 flow [2024-10-24 19:17:49,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 19:17:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-24 19:17:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 432 transitions. [2024-10-24 19:17:49,652 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-10-24 19:17:49,652 INFO L175 Difference]: Start difference. First operand has 108 places, 139 transitions, 814 flow. Second operand 11 states and 432 transitions. [2024-10-24 19:17:49,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 311 transitions, 2130 flow [2024-10-24 19:17:49,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 311 transitions, 2121 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-10-24 19:17:49,896 INFO L231 Difference]: Finished difference. Result has 121 places, 142 transitions, 917 flow [2024-10-24 19:17:49,896 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=917, PETRI_PLACES=121, PETRI_TRANSITIONS=142} [2024-10-24 19:17:49,897 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 55 predicate places. [2024-10-24 19:17:49,897 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 142 transitions, 917 flow [2024-10-24 19:17:49,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:49,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:49,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:49,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:17:49,898 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:49,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1290321525, now seen corresponding path program 8 times [2024-10-24 19:17:49,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:49,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128259938] [2024-10-24 19:17:49,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:49,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:49,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:49,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128259938] [2024-10-24 19:17:49,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128259938] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:49,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:49,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:17:49,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004593184] [2024-10-24 19:17:49,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:49,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:17:49,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:49,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:17:49,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:17:49,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 60 [2024-10-24 19:17:49,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 142 transitions, 917 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:49,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:49,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 60 [2024-10-24 19:17:49,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:51,625 INFO L124 PetriNetUnfolderBase]: 8387/16424 cut-off events. [2024-10-24 19:17:51,625 INFO L125 PetriNetUnfolderBase]: For 14702/15239 co-relation queries the response was YES. [2024-10-24 19:17:51,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43666 conditions, 16424 events. 8387/16424 cut-off events. For 14702/15239 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 140761 event pairs, 5886 based on Foata normal form. 522/16045 useless extension candidates. Maximal degree in co-relation 43509. Up to 10868 conditions per place. [2024-10-24 19:17:51,716 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 96 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2024-10-24 19:17:51,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 182 transitions, 1365 flow [2024-10-24 19:17:51,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:17:51,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:17:51,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2024-10-24 19:17:51,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2024-10-24 19:17:51,718 INFO L175 Difference]: Start difference. First operand has 121 places, 142 transitions, 917 flow. Second operand 3 states and 129 transitions. [2024-10-24 19:17:51,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 182 transitions, 1365 flow [2024-10-24 19:17:51,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 182 transitions, 1328 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-10-24 19:17:51,872 INFO L231 Difference]: Finished difference. Result has 118 places, 142 transitions, 890 flow [2024-10-24 19:17:51,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=118, PETRI_TRANSITIONS=142} [2024-10-24 19:17:51,874 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 52 predicate places. [2024-10-24 19:17:51,874 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 142 transitions, 890 flow [2024-10-24 19:17:51,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:51,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:51,876 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:51,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:17:51,876 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:51,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:51,878 INFO L85 PathProgramCache]: Analyzing trace with hash 100541631, now seen corresponding path program 9 times [2024-10-24 19:17:51,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:51,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140881511] [2024-10-24 19:17:51,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:51,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:52,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:52,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:52,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140881511] [2024-10-24 19:17:52,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140881511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:52,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:52,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 19:17:52,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833329642] [2024-10-24 19:17:52,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:52,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 19:17:52,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:52,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 19:17:52,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-24 19:17:52,436 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 60 [2024-10-24 19:17:52,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 142 transitions, 890 flow. Second operand has 12 states, 12 states have (on average 23.166666666666668) internal successors, (278), 12 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:52,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:52,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 60 [2024-10-24 19:17:52,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:56,346 INFO L124 PetriNetUnfolderBase]: 21928/38028 cut-off events. [2024-10-24 19:17:56,347 INFO L125 PetriNetUnfolderBase]: For 33249/33737 co-relation queries the response was YES. [2024-10-24 19:17:56,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107827 conditions, 38028 events. 21928/38028 cut-off events. For 33249/33737 co-relation queries the response was YES. Maximal size of possible extension queue 980. Compared 317034 event pairs, 5731 based on Foata normal form. 678/37884 useless extension candidates. Maximal degree in co-relation 102265. Up to 10433 conditions per place. [2024-10-24 19:17:56,925 INFO L140 encePairwiseOnDemand]: 44/60 looper letters, 268 selfloop transitions, 92 changer transitions 7/425 dead transitions. [2024-10-24 19:17:56,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 425 transitions, 2911 flow [2024-10-24 19:17:56,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 19:17:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 19:17:56,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 556 transitions. [2024-10-24 19:17:56,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6177777777777778 [2024-10-24 19:17:56,928 INFO L175 Difference]: Start difference. First operand has 118 places, 142 transitions, 890 flow. Second operand 15 states and 556 transitions. [2024-10-24 19:17:56,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 425 transitions, 2911 flow [2024-10-24 19:17:57,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 425 transitions, 2907 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:17:57,306 INFO L231 Difference]: Finished difference. Result has 143 places, 226 transitions, 1814 flow [2024-10-24 19:17:57,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1814, PETRI_PLACES=143, PETRI_TRANSITIONS=226} [2024-10-24 19:17:57,307 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 77 predicate places. [2024-10-24 19:17:57,307 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 226 transitions, 1814 flow [2024-10-24 19:17:57,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.166666666666668) internal successors, (278), 12 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:57,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:57,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:57,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 19:17:57,308 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:17:57,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1285112855, now seen corresponding path program 10 times [2024-10-24 19:17:57,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:57,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585106925] [2024-10-24 19:17:57,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:57,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:57,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:57,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:57,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585106925] [2024-10-24 19:17:57,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585106925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:57,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:57,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 19:17:57,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492107316] [2024-10-24 19:17:57,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:57,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 19:17:57,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:57,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 19:17:57,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-24 19:17:57,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-10-24 19:17:57,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 226 transitions, 1814 flow. Second operand has 10 states, 10 states have (on average 24.8) internal successors, (248), 10 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:17:57,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:57,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-10-24 19:17:57,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:18:03,597 INFO L124 PetriNetUnfolderBase]: 28194/49328 cut-off events. [2024-10-24 19:18:03,597 INFO L125 PetriNetUnfolderBase]: For 126213/128752 co-relation queries the response was YES. [2024-10-24 19:18:03,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171416 conditions, 49328 events. 28194/49328 cut-off events. For 126213/128752 co-relation queries the response was YES. Maximal size of possible extension queue 1238. Compared 426261 event pairs, 11467 based on Foata normal form. 453/48568 useless extension candidates. Maximal degree in co-relation 162329. Up to 31505 conditions per place. [2024-10-24 19:18:04,113 INFO L140 encePairwiseOnDemand]: 46/60 looper letters, 272 selfloop transitions, 76 changer transitions 0/410 dead transitions. [2024-10-24 19:18:04,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 410 transitions, 3625 flow [2024-10-24 19:18:04,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:18:04,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:18:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 387 transitions. [2024-10-24 19:18:04,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.645 [2024-10-24 19:18:04,116 INFO L175 Difference]: Start difference. First operand has 143 places, 226 transitions, 1814 flow. Second operand 10 states and 387 transitions. [2024-10-24 19:18:04,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 410 transitions, 3625 flow [2024-10-24 19:18:05,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 410 transitions, 3586 flow, removed 19 selfloop flow, removed 1 redundant places. [2024-10-24 19:18:05,275 INFO L231 Difference]: Finished difference. Result has 158 places, 294 transitions, 2657 flow [2024-10-24 19:18:05,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1783, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2657, PETRI_PLACES=158, PETRI_TRANSITIONS=294} [2024-10-24 19:18:05,276 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 92 predicate places. [2024-10-24 19:18:05,276 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 294 transitions, 2657 flow [2024-10-24 19:18:05,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 24.8) internal successors, (248), 10 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:18:05,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:18:05,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:18:05,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 19:18:05,277 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:18:05,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:18:05,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1246270253, now seen corresponding path program 11 times [2024-10-24 19:18:05,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:18:05,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637337863] [2024-10-24 19:18:05,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:18:05,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:18:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:18:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:18:05,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:18:05,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637337863] [2024-10-24 19:18:05,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637337863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:18:05,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:18:05,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 19:18:05,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518918882] [2024-10-24 19:18:05,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:18:05,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 19:18:05,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:18:05,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 19:18:05,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-24 19:18:05,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 60 [2024-10-24 19:18:05,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 294 transitions, 2657 flow. Second operand has 10 states, 10 states have (on average 23.8) internal successors, (238), 10 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:18:05,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:18:05,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 60 [2024-10-24 19:18:05,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:18:13,275 INFO L124 PetriNetUnfolderBase]: 33989/59782 cut-off events. [2024-10-24 19:18:13,275 INFO L125 PetriNetUnfolderBase]: For 197928/201105 co-relation queries the response was YES. [2024-10-24 19:18:13,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224080 conditions, 59782 events. 33989/59782 cut-off events. For 197928/201105 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 531160 event pairs, 14921 based on Foata normal form. 418/59000 useless extension candidates. Maximal degree in co-relation 210799. Up to 40492 conditions per place. [2024-10-24 19:18:14,067 INFO L140 encePairwiseOnDemand]: 46/60 looper letters, 308 selfloop transitions, 78 changer transitions 0/444 dead transitions. [2024-10-24 19:18:14,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 444 transitions, 4449 flow [2024-10-24 19:18:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:18:14,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:18:14,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 370 transitions. [2024-10-24 19:18:14,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-10-24 19:18:14,069 INFO L175 Difference]: Start difference. First operand has 158 places, 294 transitions, 2657 flow. Second operand 10 states and 370 transitions. [2024-10-24 19:18:14,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 444 transitions, 4449 flow [2024-10-24 19:18:16,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 444 transitions, 4354 flow, removed 43 selfloop flow, removed 1 redundant places. [2024-10-24 19:18:16,006 INFO L231 Difference]: Finished difference. Result has 172 places, 333 transitions, 3243 flow [2024-10-24 19:18:16,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2582, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3243, PETRI_PLACES=172, PETRI_TRANSITIONS=333} [2024-10-24 19:18:16,007 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 106 predicate places. [2024-10-24 19:18:16,007 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 333 transitions, 3243 flow [2024-10-24 19:18:16,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.8) internal successors, (238), 10 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:18:16,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:18:16,008 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:18:16,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 19:18:16,008 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:18:16,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:18:16,008 INFO L85 PathProgramCache]: Analyzing trace with hash -175420971, now seen corresponding path program 12 times [2024-10-24 19:18:16,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:18:16,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488016518] [2024-10-24 19:18:16,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:18:16,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:18:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:18:16,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:18:16,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:18:16,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488016518] [2024-10-24 19:18:16,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488016518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:18:16,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:18:16,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:18:16,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334112911] [2024-10-24 19:18:16,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:18:16,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:18:16,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:18:16,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:18:16,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:18:16,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-10-24 19:18:16,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 333 transitions, 3243 flow. Second operand has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:18:16,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:18:16,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-10-24 19:18:16,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:18:25,674 INFO L124 PetriNetUnfolderBase]: 38231/67788 cut-off events. [2024-10-24 19:18:25,674 INFO L125 PetriNetUnfolderBase]: For 285798/289563 co-relation queries the response was YES. [2024-10-24 19:18:26,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268498 conditions, 67788 events. 38231/67788 cut-off events. For 285798/289563 co-relation queries the response was YES. Maximal size of possible extension queue 1771. Compared 624671 event pairs, 15505 based on Foata normal form. 782/67097 useless extension candidates. Maximal degree in co-relation 253591. Up to 45740 conditions per place. [2024-10-24 19:18:26,636 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 334 selfloop transitions, 89 changer transitions 9/505 dead transitions. [2024-10-24 19:18:26,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 505 transitions, 5679 flow [2024-10-24 19:18:26,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:18:26,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:18:26,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 279 transitions. [2024-10-24 19:18:26,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6642857142857143 [2024-10-24 19:18:26,638 INFO L175 Difference]: Start difference. First operand has 172 places, 333 transitions, 3243 flow. Second operand 7 states and 279 transitions. [2024-10-24 19:18:26,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 505 transitions, 5679 flow [2024-10-24 19:18:29,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 505 transitions, 5562 flow, removed 40 selfloop flow, removed 2 redundant places. [2024-10-24 19:18:29,773 INFO L231 Difference]: Finished difference. Result has 181 places, 389 transitions, 4270 flow [2024-10-24 19:18:29,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=3119, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4270, PETRI_PLACES=181, PETRI_TRANSITIONS=389} [2024-10-24 19:18:29,774 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 115 predicate places. [2024-10-24 19:18:29,774 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 389 transitions, 4270 flow [2024-10-24 19:18:29,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:18:29,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:18:29,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:18:29,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 19:18:29,775 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-24 19:18:29,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:18:29,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1094216495, now seen corresponding path program 13 times [2024-10-24 19:18:29,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:18:29,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534336157] [2024-10-24 19:18:29,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:18:29,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:18:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:18:30,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:18:30,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:18:30,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534336157] [2024-10-24 19:18:30,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534336157] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:18:30,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:18:30,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:18:30,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004924543] [2024-10-24 19:18:30,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:18:30,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:18:30,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:18:30,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:18:30,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:18:30,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 60 [2024-10-24 19:18:30,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 389 transitions, 4270 flow. Second operand has 9 states, 9 states have (on average 24.22222222222222) internal successors, (218), 9 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:18:30,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:18:30,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 60 [2024-10-24 19:18:30,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand