./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/pthread-wmm/safe002_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:29:52,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:29:53,017 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:29:53,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:29:53,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:29:53,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:29:53,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:29:53,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:29:53,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:29:53,056 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:29:53,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:29:53,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:29:53,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:29:53,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:29:53,060 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:29:53,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:29:53,060 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:29:53,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:29:53,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:29:53,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:29:53,061 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:29:53,062 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:29:53,065 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:29:53,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:29:53,066 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:29:53,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:29:53,067 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:29:53,067 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:29:53,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:29:53,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:29:53,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:29:53,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:29:53,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:29:53,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:29:53,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:29:53,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:29:53,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:29:53,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:29:53,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:29:53,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:29:53,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:29:53,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:29:53,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 [2024-11-22 21:29:53,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:29:53,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:29:53,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:29:53,361 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:29:53,364 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:29:53,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.i [2024-11-22 21:29:54,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:29:55,132 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:29:55,133 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2024-11-22 21:29:55,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a011ae9/225189ddf4cb4547babf712773f66e32/FLAG2685b42ac [2024-11-22 21:29:55,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8a011ae9/225189ddf4cb4547babf712773f66e32 [2024-11-22 21:29:55,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:29:55,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:29:55,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:29:55,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:29:55,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:29:55,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdac5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55, skipping insertion in model container [2024-11-22 21:29:55,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,223 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:29:55,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:29:55,650 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:29:55,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:29:55,751 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:29:55,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55 WrapperNode [2024-11-22 21:29:55,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:29:55,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:29:55,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:29:55,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:29:55,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,803 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-22 21:29:55,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:29:55,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:29:55,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:29:55,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:29:55,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,843 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]. [2024-11-22 21:29:55,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,850 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,855 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:29:55,856 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:29:55,856 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:29:55,856 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:29:55,857 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (1/1) ... [2024-11-22 21:29:55,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:29:55,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:29:55,903 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) [2024-11-22 21:29:55,909 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 [2024-11-22 21:29:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 21:29:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:29:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-22 21:29:55,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-22 21:29:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-22 21:29:55,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-22 21:29:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-22 21:29:55,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-22 21:29:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:29:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 21:29:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:29:55,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:29:55,960 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:29:56,091 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:29:56,094 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:29:56,233 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:29:56,233 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:29:56,325 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:29:56,325 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 21:29:56,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:29:56 BoogieIcfgContainer [2024-11-22 21:29:56,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:29:56,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:29:56,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:29:56,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:29:56,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:29:55" (1/3) ... [2024-11-22 21:29:56,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0193e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:29:56, skipping insertion in model container [2024-11-22 21:29:56,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:55" (2/3) ... [2024-11-22 21:29:56,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0193e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:29:56, skipping insertion in model container [2024-11-22 21:29:56,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:29:56" (3/3) ... [2024-11-22 21:29:56,335 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2024-11-22 21:29:56,351 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:29:56,351 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 21:29:56,352 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:29:56,400 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 21:29:56,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-11-22 21:29:56,487 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-11-22 21:29:56,487 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:29:56,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-11-22 21:29:56,491 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-11-22 21:29:56,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-11-22 21:29:56,503 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:29:56,511 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;@6b60d868, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:29:56,512 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-22 21:29:56,528 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:29:56,529 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-11-22 21:29:56,529 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:29:56,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:29:56,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:29:56,530 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:29:56,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:29:56,536 INFO L85 PathProgramCache]: Analyzing trace with hash 710438097, now seen corresponding path program 1 times [2024-11-22 21:29:56,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:29:56,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401278543] [2024-11-22 21:29:56,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:29:56,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:29:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:29:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:29:56,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:29:56,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401278543] [2024-11-22 21:29:56,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401278543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:29:56,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:29:56,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-22 21:29:56,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470269003] [2024-11-22 21:29:56,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:29:56,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:29:56,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:29:56,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:29:56,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:29:56,887 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-11-22 21:29:56,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:29:56,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:29:56,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-11-22 21:29:56,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:29:56,995 INFO L124 PetriNetUnfolderBase]: 75/219 cut-off events. [2024-11-22 21:29:56,996 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:29:56,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 219 events. 75/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1153 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 363. Up to 136 conditions per place. [2024-11-22 21:29:57,002 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-22 21:29:57,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-11-22 21:29:57,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:29:57,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:29:57,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-22 21:29:57,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-11-22 21:29:57,015 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-11-22 21:29:57,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-11-22 21:29:57,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:29:57,020 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-11-22 21:29:57,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-11-22 21:29:57,025 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-11-22 21:29:57,025 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-11-22 21:29:57,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:29:57,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:29:57,026 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:29:57,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:29:57,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:29:57,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:29:57,027 INFO L85 PathProgramCache]: Analyzing trace with hash 710439650, now seen corresponding path program 1 times [2024-11-22 21:29:57,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:29:57,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960258630] [2024-11-22 21:29:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:29:57,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:29:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:29:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:29:57,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:29:57,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960258630] [2024-11-22 21:29:57,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960258630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:29:57,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:29:57,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:29:57,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423254205] [2024-11-22 21:29:57,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:29:57,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:29:57,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:29:57,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:29:57,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:29:57,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-22 21:29:57,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:29:57,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:29:57,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-22 21:29:57,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:29:57,995 INFO L124 PetriNetUnfolderBase]: 1499/2782 cut-off events. [2024-11-22 21:29:57,996 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:29:58,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5142 conditions, 2782 events. 1499/2782 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 19862 event pairs, 374 based on Foata normal form. 0/2688 useless extension candidates. Maximal degree in co-relation 5136. Up to 818 conditions per place. [2024-11-22 21:29:58,016 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 29 selfloop transitions, 6 changer transitions 55/104 dead transitions. [2024-11-22 21:29:58,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 104 transitions, 400 flow [2024-11-22 21:29:58,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:29:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:29:58,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 254 transitions. [2024-11-22 21:29:58,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6563307493540051 [2024-11-22 21:29:58,022 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 254 transitions. [2024-11-22 21:29:58,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 104 transitions, 400 flow [2024-11-22 21:29:58,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 104 transitions, 399 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:29:58,026 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2024-11-22 21:29:58,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-11-22 21:29:58,030 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-11-22 21:29:58,030 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2024-11-22 21:29:58,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:29:58,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:29:58,030 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:29:58,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:29:58,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:29:58,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:29:58,031 INFO L85 PathProgramCache]: Analyzing trace with hash 861097345, now seen corresponding path program 1 times [2024-11-22 21:29:58,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:29:58,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587119181] [2024-11-22 21:29:58,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:29:58,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:29:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:29:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:29:58,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:29:58,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587119181] [2024-11-22 21:29:58,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587119181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:29:58,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:29:58,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:29:58,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419207435] [2024-11-22 21:29:58,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:29:58,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:29:58,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:29:58,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:29:58,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:29:58,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-22 21:29:58,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:29:58,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:29:58,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-22 21:29:58,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:29:58,727 INFO L124 PetriNetUnfolderBase]: 976/1975 cut-off events. [2024-11-22 21:29:58,727 INFO L125 PetriNetUnfolderBase]: For 3016/3021 co-relation queries the response was YES. [2024-11-22 21:29:58,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5652 conditions, 1975 events. 976/1975 cut-off events. For 3016/3021 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 13633 event pairs, 150 based on Foata normal form. 60/2020 useless extension candidates. Maximal degree in co-relation 5637. Up to 704 conditions per place. [2024-11-22 21:29:58,745 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 36 selfloop transitions, 10 changer transitions 46/106 dead transitions. [2024-11-22 21:29:58,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 106 transitions, 707 flow [2024-11-22 21:29:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 21:29:58,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 21:29:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 265 transitions. [2024-11-22 21:29:58,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2024-11-22 21:29:58,749 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 265 transitions. [2024-11-22 21:29:58,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 106 transitions, 707 flow [2024-11-22 21:29:58,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 106 transitions, 613 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-22 21:29:58,769 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 237 flow [2024-11-22 21:29:58,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=237, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-11-22 21:29:58,771 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-11-22 21:29:58,771 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 237 flow [2024-11-22 21:29:58,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:29:58,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:29:58,772 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:29:58,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 21:29:58,773 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:29:58,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:29:58,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2110605603, now seen corresponding path program 1 times [2024-11-22 21:29:58,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:29:58,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160723899] [2024-11-22 21:29:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:29:58,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:29:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:29:58,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:29:58,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:29:58,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160723899] [2024-11-22 21:29:58,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160723899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:29:58,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:29:58,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:29:58,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504336310] [2024-11-22 21:29:58,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:29:58,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:29:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:29:58,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:29:58,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:29:58,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-22 21:29:58,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:29:58,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:29:58,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-22 21:29:58,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:29:59,335 INFO L124 PetriNetUnfolderBase]: 846/1694 cut-off events. [2024-11-22 21:29:59,335 INFO L125 PetriNetUnfolderBase]: For 4557/4564 co-relation queries the response was YES. [2024-11-22 21:29:59,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5493 conditions, 1694 events. 846/1694 cut-off events. For 4557/4564 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 11282 event pairs, 216 based on Foata normal form. 42/1727 useless extension candidates. Maximal degree in co-relation 5471. Up to 662 conditions per place. [2024-11-22 21:29:59,349 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 40 selfloop transitions, 12 changer transitions 32/98 dead transitions. [2024-11-22 21:29:59,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 98 transitions, 679 flow [2024-11-22 21:29:59,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 21:29:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 21:29:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-11-22 21:29:59,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2024-11-22 21:29:59,352 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 237 flow. Second operand 10 states and 256 transitions. [2024-11-22 21:29:59,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 98 transitions, 679 flow [2024-11-22 21:29:59,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 98 transitions, 613 flow, removed 33 selfloop flow, removed 2 redundant places. [2024-11-22 21:29:59,370 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 311 flow [2024-11-22 21:29:59,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2024-11-22 21:29:59,371 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2024-11-22 21:29:59,371 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 311 flow [2024-11-22 21:29:59,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:29:59,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:29:59,372 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] [2024-11-22 21:29:59,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 21:29:59,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:29:59,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:29:59,373 INFO L85 PathProgramCache]: Analyzing trace with hash 511833086, now seen corresponding path program 1 times [2024-11-22 21:29:59,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:29:59,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751816135] [2024-11-22 21:29:59,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:29:59,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:29:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:29:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:29:59,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:29:59,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751816135] [2024-11-22 21:29:59,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751816135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:29:59,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:29:59,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:29:59,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974845150] [2024-11-22 21:29:59,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:29:59,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:29:59,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:29:59,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:29:59,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:29:59,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-22 21:29:59,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 311 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-11-22 21:29:59,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:29:59,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-22 21:29:59,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:29:59,886 INFO L124 PetriNetUnfolderBase]: 926/1875 cut-off events. [2024-11-22 21:29:59,886 INFO L125 PetriNetUnfolderBase]: For 5448/5452 co-relation queries the response was YES. [2024-11-22 21:29:59,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6238 conditions, 1875 events. 926/1875 cut-off events. For 5448/5452 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 13075 event pairs, 131 based on Foata normal form. 64/1904 useless extension candidates. Maximal degree in co-relation 6207. Up to 626 conditions per place. [2024-11-22 21:29:59,899 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 34 selfloop transitions, 9 changer transitions 51/108 dead transitions. [2024-11-22 21:29:59,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 108 transitions, 881 flow [2024-11-22 21:29:59,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 21:29:59,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-22 21:29:59,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 281 transitions. [2024-11-22 21:29:59,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5940803382663847 [2024-11-22 21:29:59,902 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 311 flow. Second operand 11 states and 281 transitions. [2024-11-22 21:29:59,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 108 transitions, 881 flow [2024-11-22 21:29:59,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 819 flow, removed 28 selfloop flow, removed 12 redundant places. [2024-11-22 21:29:59,919 INFO L231 Difference]: Finished difference. Result has 75 places, 42 transitions, 270 flow [2024-11-22 21:29:59,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=270, PETRI_PLACES=75, PETRI_TRANSITIONS=42} [2024-11-22 21:29:59,921 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2024-11-22 21:29:59,921 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 42 transitions, 270 flow [2024-11-22 21:29:59,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-11-22 21:29:59,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:29:59,922 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:29:59,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 21:29:59,922 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:29:59,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:29:59,923 INFO L85 PathProgramCache]: Analyzing trace with hash 549789387, now seen corresponding path program 1 times [2024-11-22 21:29:59,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:29:59,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748160696] [2024-11-22 21:29:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:29:59,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:29:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:30:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:30:00,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:30:00,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748160696] [2024-11-22 21:30:00,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748160696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:30:00,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:30:00,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:30:00,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286835886] [2024-11-22 21:30:00,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:30:00,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:30:00,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:30:00,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:30:00,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:30:00,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-11-22 21:30:00,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 42 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-11-22 21:30:00,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:30:00,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-11-22 21:30:00,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:30:00,297 INFO L124 PetriNetUnfolderBase]: 412/861 cut-off events. [2024-11-22 21:30:00,298 INFO L125 PetriNetUnfolderBase]: For 2164/2170 co-relation queries the response was YES. [2024-11-22 21:30:00,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 861 events. 412/861 cut-off events. For 2164/2170 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4955 event pairs, 102 based on Foata normal form. 20/852 useless extension candidates. Maximal degree in co-relation 2881. Up to 294 conditions per place. [2024-11-22 21:30:00,306 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 7 changer transitions 19/74 dead transitions. [2024-11-22 21:30:00,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 74 transitions, 530 flow [2024-11-22 21:30:00,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:30:00,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:30:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 200 transitions. [2024-11-22 21:30:00,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5813953488372093 [2024-11-22 21:30:00,309 INFO L175 Difference]: Start difference. First operand has 75 places, 42 transitions, 270 flow. Second operand 8 states and 200 transitions. [2024-11-22 21:30:00,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 74 transitions, 530 flow [2024-11-22 21:30:00,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 74 transitions, 473 flow, removed 14 selfloop flow, removed 11 redundant places. [2024-11-22 21:30:00,317 INFO L231 Difference]: Finished difference. Result has 70 places, 42 transitions, 254 flow [2024-11-22 21:30:00,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=254, PETRI_PLACES=70, PETRI_TRANSITIONS=42} [2024-11-22 21:30:00,319 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2024-11-22 21:30:00,320 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 42 transitions, 254 flow [2024-11-22 21:30:00,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-11-22 21:30:00,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:30:00,320 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:30:00,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 21:30:00,321 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:30:00,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:30:00,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1204596331, now seen corresponding path program 1 times [2024-11-22 21:30:00,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:30:00,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108411579] [2024-11-22 21:30:00,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:30:00,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:30:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:30:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:30:00,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:30:00,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108411579] [2024-11-22 21:30:00,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108411579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:30:00,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:30:00,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:30:00,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123704460] [2024-11-22 21:30:00,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:30:00,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:30:00,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:30:00,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:30:00,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:30:00,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-11-22 21:30:00,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 42 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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) [2024-11-22 21:30:00,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:30:00,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-11-22 21:30:00,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:30:00,658 INFO L124 PetriNetUnfolderBase]: 381/860 cut-off events. [2024-11-22 21:30:00,658 INFO L125 PetriNetUnfolderBase]: For 2153/2252 co-relation queries the response was YES. [2024-11-22 21:30:00,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 860 events. 381/860 cut-off events. For 2153/2252 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5376 event pairs, 156 based on Foata normal form. 33/866 useless extension candidates. Maximal degree in co-relation 2786. Up to 277 conditions per place. [2024-11-22 21:30:00,664 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 5 changer transitions 15/64 dead transitions. [2024-11-22 21:30:00,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 432 flow [2024-11-22 21:30:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:30:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:30:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2024-11-22 21:30:00,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6201550387596899 [2024-11-22 21:30:00,667 INFO L175 Difference]: Start difference. First operand has 70 places, 42 transitions, 254 flow. Second operand 6 states and 160 transitions. [2024-11-22 21:30:00,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 432 flow [2024-11-22 21:30:00,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 387 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-11-22 21:30:00,672 INFO L231 Difference]: Finished difference. Result has 67 places, 39 transitions, 209 flow [2024-11-22 21:30:00,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=67, PETRI_TRANSITIONS=39} [2024-11-22 21:30:00,673 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-11-22 21:30:00,673 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 39 transitions, 209 flow [2024-11-22 21:30:00,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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) [2024-11-22 21:30:00,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:30:00,674 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:30:00,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 21:30:00,674 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:30:00,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:30:00,675 INFO L85 PathProgramCache]: Analyzing trace with hash -6368503, now seen corresponding path program 2 times [2024-11-22 21:30:00,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:30:00,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773440239] [2024-11-22 21:30:00,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:30:00,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:30:00,687 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:30:00,687 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:30:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:30:00,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:30:00,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773440239] [2024-11-22 21:30:00,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773440239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:30:00,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:30:00,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:30:00,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847208823] [2024-11-22 21:30:00,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:30:00,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:30:00,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:30:00,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:30:00,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:30:00,804 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-11-22 21:30:00,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 39 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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) [2024-11-22 21:30:00,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:30:00,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-11-22 21:30:00,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:30:00,969 INFO L124 PetriNetUnfolderBase]: 286/655 cut-off events. [2024-11-22 21:30:00,970 INFO L125 PetriNetUnfolderBase]: For 973/994 co-relation queries the response was YES. [2024-11-22 21:30:00,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2013 conditions, 655 events. 286/655 cut-off events. For 973/994 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3900 event pairs, 92 based on Foata normal form. 24/670 useless extension candidates. Maximal degree in co-relation 1995. Up to 183 conditions per place. [2024-11-22 21:30:00,975 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 20 selfloop transitions, 2 changer transitions 25/63 dead transitions. [2024-11-22 21:30:00,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 365 flow [2024-11-22 21:30:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:30:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:30:00,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-11-22 21:30:00,977 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6112956810631229 [2024-11-22 21:30:00,977 INFO L175 Difference]: Start difference. First operand has 67 places, 39 transitions, 209 flow. Second operand 7 states and 184 transitions. [2024-11-22 21:30:00,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 365 flow [2024-11-22 21:30:00,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 63 transitions, 326 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-11-22 21:30:00,982 INFO L231 Difference]: Finished difference. Result has 65 places, 33 transitions, 125 flow [2024-11-22 21:30:00,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=125, PETRI_PLACES=65, PETRI_TRANSITIONS=33} [2024-11-22 21:30:00,985 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-11-22 21:30:00,985 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 33 transitions, 125 flow [2024-11-22 21:30:00,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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) [2024-11-22 21:30:00,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:30:00,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:30:00,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 21:30:00,986 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:30:00,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:30:00,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1572595045, now seen corresponding path program 3 times [2024-11-22 21:30:00,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:30:00,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914456183] [2024-11-22 21:30:00,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:30:00,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:30:01,005 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 21:30:01,006 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:30:01,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:30:01,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:30:01,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914456183] [2024-11-22 21:30:01,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914456183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:30:01,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:30:01,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:30:01,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090276244] [2024-11-22 21:30:01,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:30:01,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:30:01,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:30:01,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:30:01,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:30:01,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-22 21:30:01,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 33 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-22 21:30:01,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:30:01,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-22 21:30:01,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:30:01,208 INFO L124 PetriNetUnfolderBase]: 370/728 cut-off events. [2024-11-22 21:30:01,208 INFO L125 PetriNetUnfolderBase]: For 421/429 co-relation queries the response was YES. [2024-11-22 21:30:01,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 728 events. 370/728 cut-off events. For 421/429 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3980 event pairs, 78 based on Foata normal form. 27/727 useless extension candidates. Maximal degree in co-relation 1657. Up to 353 conditions per place. [2024-11-22 21:30:01,214 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 24 selfloop transitions, 5 changer transitions 1/46 dead transitions. [2024-11-22 21:30:01,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 46 transitions, 213 flow [2024-11-22 21:30:01,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:30:01,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:30:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-22 21:30:01,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-11-22 21:30:01,216 INFO L175 Difference]: Start difference. First operand has 65 places, 33 transitions, 125 flow. Second operand 4 states and 116 transitions. [2024-11-22 21:30:01,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 46 transitions, 213 flow [2024-11-22 21:30:01,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 185 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-22 21:30:01,219 INFO L231 Difference]: Finished difference. Result has 53 places, 36 transitions, 131 flow [2024-11-22 21:30:01,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2024-11-22 21:30:01,220 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 6 predicate places. [2024-11-22 21:30:01,220 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 131 flow [2024-11-22 21:30:01,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-22 21:30:01,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:30:01,223 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:30:01,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 21:30:01,223 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:30:01,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:30:01,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1889347666, now seen corresponding path program 1 times [2024-11-22 21:30:01,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:30:01,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994762309] [2024-11-22 21:30:01,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:30:01,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:30:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:30:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:30:01,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:30:01,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994762309] [2024-11-22 21:30:01,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994762309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:30:01,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:30:01,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:30:01,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046466406] [2024-11-22 21:30:01,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:30:01,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:30:01,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:30:01,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:30:01,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:30:01,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-22 21:30:01,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 36 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:30:01,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:30:01,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-22 21:30:01,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:30:01,448 INFO L124 PetriNetUnfolderBase]: 285/570 cut-off events. [2024-11-22 21:30:01,448 INFO L125 PetriNetUnfolderBase]: For 271/351 co-relation queries the response was YES. [2024-11-22 21:30:01,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 570 events. 285/570 cut-off events. For 271/351 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2753 event pairs, 27 based on Foata normal form. 30/581 useless extension candidates. Maximal degree in co-relation 1404. Up to 245 conditions per place. [2024-11-22 21:30:01,453 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 28 selfloop transitions, 8 changer transitions 1/53 dead transitions. [2024-11-22 21:30:01,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 256 flow [2024-11-22 21:30:01,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:30:01,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:30:01,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2024-11-22 21:30:01,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6697674418604651 [2024-11-22 21:30:01,455 INFO L175 Difference]: Start difference. First operand has 53 places, 36 transitions, 131 flow. Second operand 5 states and 144 transitions. [2024-11-22 21:30:01,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 256 flow [2024-11-22 21:30:01,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 246 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-22 21:30:01,457 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 171 flow [2024-11-22 21:30:01,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=171, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-11-22 21:30:01,458 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2024-11-22 21:30:01,458 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 171 flow [2024-11-22 21:30:01,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:30:01,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:30:01,460 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:30:01,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 21:30:01,461 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:30:01,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:30:01,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1227158705, now seen corresponding path program 1 times [2024-11-22 21:30:01,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:30:01,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359292648] [2024-11-22 21:30:01,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:30:01,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:30:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:30:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:30:01,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:30:01,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359292648] [2024-11-22 21:30:01,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359292648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:30:01,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:30:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:30:01,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695393556] [2024-11-22 21:30:01,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:30:01,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:30:01,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:30:01,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:30:01,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:30:01,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-11-22 21:30:01,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-11-22 21:30:01,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:30:01,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-11-22 21:30:01,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:30:01,675 INFO L124 PetriNetUnfolderBase]: 162/321 cut-off events. [2024-11-22 21:30:01,678 INFO L125 PetriNetUnfolderBase]: For 362/454 co-relation queries the response was YES. [2024-11-22 21:30:01,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 321 events. 162/321 cut-off events. For 362/454 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1113 event pairs, 6 based on Foata normal form. 28/336 useless extension candidates. Maximal degree in co-relation 883. Up to 84 conditions per place. [2024-11-22 21:30:01,680 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 11 changer transitions 1/54 dead transitions. [2024-11-22 21:30:01,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 283 flow [2024-11-22 21:30:01,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:30:01,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:30:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2024-11-22 21:30:01,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-11-22 21:30:01,682 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 171 flow. Second operand 6 states and 166 transitions. [2024-11-22 21:30:01,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 283 flow [2024-11-22 21:30:01,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 54 transitions, 242 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-11-22 21:30:01,683 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 169 flow [2024-11-22 21:30:01,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-11-22 21:30:01,684 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2024-11-22 21:30:01,686 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 169 flow [2024-11-22 21:30:01,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-11-22 21:30:01,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:30:01,687 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:30:01,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 21:30:01,691 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:30:01,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:30:01,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2140280908, now seen corresponding path program 1 times [2024-11-22 21:30:01,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:30:01,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928662583] [2024-11-22 21:30:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:30:01,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:30:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:30:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:30:01,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:30:01,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928662583] [2024-11-22 21:30:01,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928662583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:30:01,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:30:01,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:30:01,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099158145] [2024-11-22 21:30:01,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:30:01,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:30:01,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:30:01,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:30:01,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:30:01,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-11-22 21:30:01,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-22 21:30:01,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:30:01,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-11-22 21:30:01,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:30:01,967 INFO L124 PetriNetUnfolderBase]: 123/273 cut-off events. [2024-11-22 21:30:01,967 INFO L125 PetriNetUnfolderBase]: For 202/206 co-relation queries the response was YES. [2024-11-22 21:30:01,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 273 events. 123/273 cut-off events. For 202/206 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1028 event pairs, 28 based on Foata normal form. 8/261 useless extension candidates. Maximal degree in co-relation 688. Up to 113 conditions per place. [2024-11-22 21:30:01,968 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-11-22 21:30:01,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 48 transitions, 251 flow [2024-11-22 21:30:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:30:01,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:30:01,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 151 transitions. [2024-11-22 21:30:01,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5016611295681063 [2024-11-22 21:30:01,970 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 169 flow. Second operand 7 states and 151 transitions. [2024-11-22 21:30:01,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 48 transitions, 251 flow [2024-11-22 21:30:01,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 195 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-22 21:30:01,971 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-11-22 21:30:01,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-11-22 21:30:01,972 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 5 predicate places. [2024-11-22 21:30:01,972 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-11-22 21:30:01,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-22 21:30:01,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-22 21:30:01,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-22 21:30:01,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-22 21:30:01,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-22 21:30:01,976 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-22 21:30:01,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 21:30:01,977 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:30:01,980 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 21:30:01,980 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:30:01,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:30:01 BasicIcfg [2024-11-22 21:30:01,989 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:30:01,990 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:30:01,990 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:30:01,990 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:30:01,991 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:29:56" (3/4) ... [2024-11-22 21:30:01,993 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 21:30:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-22 21:30:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-22 21:30:01,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-22 21:30:02,002 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-22 21:30:02,003 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-22 21:30:02,003 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 21:30:02,003 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-22 21:30:02,087 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:30:02,087 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 21:30:02,088 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:30:02,088 INFO L158 Benchmark]: Toolchain (without parser) took 6923.19ms. Allocated memory was 172.0MB in the beginning and 226.5MB in the end (delta: 54.5MB). Free memory was 101.5MB in the beginning and 108.8MB in the end (delta: -7.2MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-11-22 21:30:02,088 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:30:02,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.48ms. Allocated memory is still 172.0MB. Free memory was 101.2MB in the beginning and 128.3MB in the end (delta: -27.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-22 21:30:02,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.68ms. Allocated memory is still 172.0MB. Free memory was 128.3MB in the beginning and 126.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:30:02,089 INFO L158 Benchmark]: Boogie Preprocessor took 50.27ms. Allocated memory is still 172.0MB. Free memory was 126.7MB in the beginning and 124.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:30:02,090 INFO L158 Benchmark]: RCFGBuilder took 469.81ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 104.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 21:30:02,090 INFO L158 Benchmark]: TraceAbstraction took 5662.12ms. Allocated memory was 172.0MB in the beginning and 226.5MB in the end (delta: 54.5MB). Free memory was 103.8MB in the beginning and 114.0MB in the end (delta: -10.2MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2024-11-22 21:30:02,090 INFO L158 Benchmark]: Witness Printer took 97.72ms. Allocated memory is still 226.5MB. Free memory was 114.0MB in the beginning and 108.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:30:02,093 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.48ms. Allocated memory is still 172.0MB. Free memory was 101.2MB in the beginning and 128.3MB in the end (delta: -27.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.68ms. Allocated memory is still 172.0MB. Free memory was 128.3MB in the beginning and 126.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.27ms. Allocated memory is still 172.0MB. Free memory was 126.7MB in the beginning and 124.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.81ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 104.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5662.12ms. Allocated memory was 172.0MB in the beginning and 226.5MB in the end (delta: 54.5MB). Free memory was 103.8MB in the beginning and 114.0MB in the end (delta: -10.2MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. * Witness Printer took 97.72ms. Allocated memory is still 226.5MB. Free memory was 114.0MB in the beginning and 108.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 491 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 448 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1135 IncrementalHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 58 mSDtfsCounter, 1135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=4, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 21:30:02,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE