./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 6a1fdac91c77d25a0ff7a4081206e72776b2070a8df670f4d024b55d140add18 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:55:17,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:55:17,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:55:17,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:55:17,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:55:17,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:55:17,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:55:17,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:55:17,866 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:55:17,866 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:55:17,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:55:17,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:55:17,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:55:17,868 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:55:17,868 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:55:17,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:55:17,868 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:55:17,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:55:17,869 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:55:17,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:55:17,869 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:55:17,870 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:55:17,870 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:55:17,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:55:17,871 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:55:17,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:55:17,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:55:17,871 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:55:17,871 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:55:17,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:55:17,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:55:17,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:55:17,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:55:17,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:55:17,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:55:17,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:55:17,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:55:17,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:55:17,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:55:17,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:55:17,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:55:17,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:55:17,875 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a1fdac91c77d25a0ff7a4081206e72776b2070a8df670f4d024b55d140add18 [2024-10-11 19:55:18,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:55:18,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:55:18,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:55:18,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:55:18,104 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:55:18,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-10-11 19:55:19,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:55:19,713 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:55:19,714 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-10-11 19:55:19,721 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8afcc003a/5a368bf725e0478bb774d954ac52552d/FLAG54f71420c [2024-10-11 19:55:20,109 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8afcc003a/5a368bf725e0478bb774d954ac52552d [2024-10-11 19:55:20,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:55:20,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:55:20,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:55:20,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:55:20,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:55:20,118 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf0a80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20, skipping insertion in model container [2024-10-11 19:55:20,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:55:20,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:55:20,301 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:55:20,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:55:20,340 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:55:20,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20 WrapperNode [2024-10-11 19:55:20,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:55:20,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:55:20,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:55:20,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:55:20,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,400 INFO L138 Inliner]: procedures = 21, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 152 [2024-10-11 19:55:20,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:55:20,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:55:20,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:55:20,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:55:20,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,442 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 19:55:20,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:55:20,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:55:20,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:55:20,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:55:20,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (1/1) ... [2024-10-11 19:55:20,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:55:20,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:55:20,483 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:55:20,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:55:20,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:55:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 19:55:20,531 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 19:55:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 19:55:20,531 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 19:55:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-11 19:55:20,531 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-11 19:55:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:55:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:55:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:55:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:55:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:55:20,535 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:55:20,618 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:55:20,620 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:55:20,828 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:55:20,828 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:55:20,973 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:55:20,973 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:55:20,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:55:20 BoogieIcfgContainer [2024-10-11 19:55:20,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:55:20,975 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:55:20,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:55:20,978 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:55:20,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:55:20" (1/3) ... [2024-10-11 19:55:20,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107bc077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:55:20, skipping insertion in model container [2024-10-11 19:55:20,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:55:20" (2/3) ... [2024-10-11 19:55:20,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107bc077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:55:20, skipping insertion in model container [2024-10-11 19:55:20,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:55:20" (3/3) ... [2024-10-11 19:55:20,980 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-10-11 19:55:20,992 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:55:20,993 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:55:20,993 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:55:21,027 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-11 19:55:21,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 37 transitions, 95 flow [2024-10-11 19:55:21,072 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-10-11 19:55:21,072 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 19:55:21,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 34 events. 0/34 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-11 19:55:21,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 37 transitions, 95 flow [2024-10-11 19:55:21,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 84 flow [2024-10-11 19:55:21,083 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:55:21,089 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;@4ec613a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:55:21,090 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-11 19:55:21,103 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:55:21,103 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-11 19:55:21,103 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 19:55:21,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:21,104 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:55:21,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:55:21,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:21,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1815729811, now seen corresponding path program 1 times [2024-10-11 19:55:21,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:21,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093998132] [2024-10-11 19:55:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:21,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:21,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:21,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093998132] [2024-10-11 19:55:21,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093998132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:21,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:21,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:55:21,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881407181] [2024-10-11 19:55:21,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:21,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:55:21,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:21,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:55:21,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:55:21,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2024-10-11 19:55:21,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:21,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:21,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2024-10-11 19:55:21,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:22,170 INFO L124 PetriNetUnfolderBase]: 1711/2644 cut-off events. [2024-10-11 19:55:22,172 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-10-11 19:55:22,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5482 conditions, 2644 events. 1711/2644 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 13033 event pairs, 1200 based on Foata normal form. 2/2633 useless extension candidates. Maximal degree in co-relation 5013. Up to 1620 conditions per place. [2024-10-11 19:55:22,188 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 51 selfloop transitions, 4 changer transitions 6/65 dead transitions. [2024-10-11 19:55:22,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 65 transitions, 288 flow [2024-10-11 19:55:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:55:22,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:55:22,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2024-10-11 19:55:22,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6418918918918919 [2024-10-11 19:55:22,200 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 84 flow. Second operand 4 states and 95 transitions. [2024-10-11 19:55:22,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 65 transitions, 288 flow [2024-10-11 19:55:22,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 65 transitions, 264 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-11 19:55:22,209 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 93 flow [2024-10-11 19:55:22,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2024-10-11 19:55:22,215 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-10-11 19:55:22,215 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 93 flow [2024-10-11 19:55:22,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:22,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:22,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:55:22,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:55:22,216 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:55:22,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash 517639159, now seen corresponding path program 2 times [2024-10-11 19:55:22,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:22,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352255286] [2024-10-11 19:55:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:22,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:22,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:22,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:22,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352255286] [2024-10-11 19:55:22,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352255286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:22,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:22,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:55:22,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610498699] [2024-10-11 19:55:22,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:22,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:55:22,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:22,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:55:22,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:55:22,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-10-11 19:55:22,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 93 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:22,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:22,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-10-11 19:55:22,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:22,542 INFO L124 PetriNetUnfolderBase]: 1025/1843 cut-off events. [2024-10-11 19:55:22,543 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-10-11 19:55:22,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3797 conditions, 1843 events. 1025/1843 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10662 event pairs, 316 based on Foata normal form. 28/1833 useless extension candidates. Maximal degree in co-relation 1871. Up to 590 conditions per place. [2024-10-11 19:55:22,551 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 52 selfloop transitions, 13 changer transitions 3/78 dead transitions. [2024-10-11 19:55:22,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 78 transitions, 326 flow [2024-10-11 19:55:22,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:55:22,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:55:22,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2024-10-11 19:55:22,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6972972972972973 [2024-10-11 19:55:22,554 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 93 flow. Second operand 5 states and 129 transitions. [2024-10-11 19:55:22,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 78 transitions, 326 flow [2024-10-11 19:55:22,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 78 transitions, 317 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-11 19:55:22,558 INFO L231 Difference]: Finished difference. Result has 43 places, 45 transitions, 163 flow [2024-10-11 19:55:22,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=163, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2024-10-11 19:55:22,559 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-10-11 19:55:22,559 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 163 flow [2024-10-11 19:55:22,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:22,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:22,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:55:22,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:55:22,561 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:55:22,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:22,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1031482989, now seen corresponding path program 3 times [2024-10-11 19:55:22,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:22,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950173498] [2024-10-11 19:55:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:22,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:22,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:22,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:22,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950173498] [2024-10-11 19:55:22,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950173498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:22,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:22,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:55:22,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452016851] [2024-10-11 19:55:22,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:22,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:55:22,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:22,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:55:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:55:22,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-10-11 19:55:22,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 163 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:22,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:22,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-10-11 19:55:22,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:22,867 INFO L124 PetriNetUnfolderBase]: 959/1785 cut-off events. [2024-10-11 19:55:22,867 INFO L125 PetriNetUnfolderBase]: For 749/759 co-relation queries the response was YES. [2024-10-11 19:55:22,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4448 conditions, 1785 events. 959/1785 cut-off events. For 749/759 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 10521 event pairs, 265 based on Foata normal form. 34/1795 useless extension candidates. Maximal degree in co-relation 1312. Up to 534 conditions per place. [2024-10-11 19:55:22,876 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 47 selfloop transitions, 15 changer transitions 6/78 dead transitions. [2024-10-11 19:55:22,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 78 transitions, 392 flow [2024-10-11 19:55:22,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:55:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:55:22,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2024-10-11 19:55:22,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6864864864864865 [2024-10-11 19:55:22,879 INFO L175 Difference]: Start difference. First operand has 43 places, 45 transitions, 163 flow. Second operand 5 states and 127 transitions. [2024-10-11 19:55:22,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 78 transitions, 392 flow [2024-10-11 19:55:22,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 78 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 19:55:22,881 INFO L231 Difference]: Finished difference. Result has 49 places, 48 transitions, 223 flow [2024-10-11 19:55:22,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=49, PETRI_TRANSITIONS=48} [2024-10-11 19:55:22,884 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 6 predicate places. [2024-10-11 19:55:22,884 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 48 transitions, 223 flow [2024-10-11 19:55:22,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:22,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:22,884 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:55:22,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:55:22,885 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:55:22,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:22,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1412656211, now seen corresponding path program 4 times [2024-10-11 19:55:22,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:22,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512763088] [2024-10-11 19:55:22,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:22,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:23,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:23,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512763088] [2024-10-11 19:55:23,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512763088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:23,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:23,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:55:23,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459807122] [2024-10-11 19:55:23,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:23,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:55:23,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:23,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:55:23,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:55:23,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-10-11 19:55:23,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2024-10-11 19:55:23,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:23,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-10-11 19:55:23,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:23,194 INFO L124 PetriNetUnfolderBase]: 616/1197 cut-off events. [2024-10-11 19:55:23,195 INFO L125 PetriNetUnfolderBase]: For 1125/1136 co-relation queries the response was YES. [2024-10-11 19:55:23,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3302 conditions, 1197 events. 616/1197 cut-off events. For 1125/1136 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6395 event pairs, 129 based on Foata normal form. 46/1233 useless extension candidates. Maximal degree in co-relation 1044. Up to 463 conditions per place. [2024-10-11 19:55:23,199 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 45 selfloop transitions, 22 changer transitions 16/93 dead transitions. [2024-10-11 19:55:23,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 93 transitions, 554 flow [2024-10-11 19:55:23,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:55:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:55:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2024-10-11 19:55:23,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6576576576576577 [2024-10-11 19:55:23,201 INFO L175 Difference]: Start difference. First operand has 49 places, 48 transitions, 223 flow. Second operand 6 states and 146 transitions. [2024-10-11 19:55:23,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 93 transitions, 554 flow [2024-10-11 19:55:23,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 511 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:55:23,204 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 279 flow [2024-10-11 19:55:23,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2024-10-11 19:55:23,204 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 10 predicate places. [2024-10-11 19:55:23,205 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 279 flow [2024-10-11 19:55:23,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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) [2024-10-11 19:55:23,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:23,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:55:23,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:55:23,205 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:55:23,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:23,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1096738953, now seen corresponding path program 5 times [2024-10-11 19:55:23,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:23,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992280756] [2024-10-11 19:55:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:23,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:23,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:23,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992280756] [2024-10-11 19:55:23,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992280756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:23,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:23,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:55:23,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005568145] [2024-10-11 19:55:23,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:23,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:55:23,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:23,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:55:23,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:55:23,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-10-11 19:55:23,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 279 flow. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:23,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:23,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-10-11 19:55:23,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:23,426 INFO L124 PetriNetUnfolderBase]: 338/683 cut-off events. [2024-10-11 19:55:23,426 INFO L125 PetriNetUnfolderBase]: For 773/785 co-relation queries the response was YES. [2024-10-11 19:55:23,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 683 events. 338/683 cut-off events. For 773/785 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3116 event pairs, 81 based on Foata normal form. 28/700 useless extension candidates. Maximal degree in co-relation 774. Up to 209 conditions per place. [2024-10-11 19:55:23,430 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 41 selfloop transitions, 18 changer transitions 14/83 dead transitions. [2024-10-11 19:55:23,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 83 transitions, 520 flow [2024-10-11 19:55:23,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:55:23,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:55:23,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2024-10-11 19:55:23,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5641891891891891 [2024-10-11 19:55:23,431 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 279 flow. Second operand 8 states and 167 transitions. [2024-10-11 19:55:23,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 83 transitions, 520 flow [2024-10-11 19:55:23,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 512 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 19:55:23,434 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 278 flow [2024-10-11 19:55:23,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=278, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2024-10-11 19:55:23,436 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2024-10-11 19:55:23,436 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 278 flow [2024-10-11 19:55:23,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:23,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:23,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:55:23,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:55:23,437 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:55:23,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:23,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1432700859, now seen corresponding path program 6 times [2024-10-11 19:55:23,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:23,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408011955] [2024-10-11 19:55:23,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:23,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:23,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:23,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:23,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408011955] [2024-10-11 19:55:23,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408011955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:23,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:23,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:55:23,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588370925] [2024-10-11 19:55:23,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:23,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:55:23,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:23,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:55:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:55:23,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-10-11 19:55:23,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 278 flow. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:23,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:23,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-10-11 19:55:23,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:23,722 INFO L124 PetriNetUnfolderBase]: 270/566 cut-off events. [2024-10-11 19:55:23,722 INFO L125 PetriNetUnfolderBase]: For 1126/1138 co-relation queries the response was YES. [2024-10-11 19:55:23,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1771 conditions, 566 events. 270/566 cut-off events. For 1126/1138 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2502 event pairs, 75 based on Foata normal form. 28/589 useless extension candidates. Maximal degree in co-relation 817. Up to 153 conditions per place. [2024-10-11 19:55:23,725 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 36 selfloop transitions, 12 changer transitions 23/80 dead transitions. [2024-10-11 19:55:23,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 80 transitions, 542 flow [2024-10-11 19:55:23,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:55:23,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:55:23,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2024-10-11 19:55:23,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5608108108108109 [2024-10-11 19:55:23,727 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 278 flow. Second operand 8 states and 166 transitions. [2024-10-11 19:55:23,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 80 transitions, 542 flow [2024-10-11 19:55:23,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 80 transitions, 488 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-10-11 19:55:23,730 INFO L231 Difference]: Finished difference. Result has 61 places, 38 transitions, 206 flow [2024-10-11 19:55:23,731 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=206, PETRI_PLACES=61, PETRI_TRANSITIONS=38} [2024-10-11 19:55:23,731 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 18 predicate places. [2024-10-11 19:55:23,732 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 38 transitions, 206 flow [2024-10-11 19:55:23,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:23,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:55:23,732 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:55:23,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:55:23,733 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:55:23,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:55:23,733 INFO L85 PathProgramCache]: Analyzing trace with hash -175939049, now seen corresponding path program 7 times [2024-10-11 19:55:23,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:55:23,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974051781] [2024-10-11 19:55:23,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:55:23,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:55:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:55:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:55:23,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:55:23,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974051781] [2024-10-11 19:55:23,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974051781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:55:23,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:55:23,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:55:23,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123342689] [2024-10-11 19:55:23,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:55:23,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:55:23,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:55:23,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:55:23,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:55:23,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-10-11 19:55:23,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 38 transitions, 206 flow. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:23,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:55:23,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-10-11 19:55:23,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:55:23,875 INFO L124 PetriNetUnfolderBase]: 34/90 cut-off events. [2024-10-11 19:55:23,875 INFO L125 PetriNetUnfolderBase]: For 164/164 co-relation queries the response was YES. [2024-10-11 19:55:23,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 90 events. 34/90 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 239 event pairs, 4 based on Foata normal form. 16/105 useless extension candidates. Maximal degree in co-relation 307. Up to 20 conditions per place. [2024-10-11 19:55:23,876 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2024-10-11 19:55:23,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 32 transitions, 203 flow [2024-10-11 19:55:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:55:23,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:55:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 125 transitions. [2024-10-11 19:55:23,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4222972972972973 [2024-10-11 19:55:23,877 INFO L175 Difference]: Start difference. First operand has 61 places, 38 transitions, 206 flow. Second operand 8 states and 125 transitions. [2024-10-11 19:55:23,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 32 transitions, 203 flow [2024-10-11 19:55:23,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 166 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-10-11 19:55:23,878 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2024-10-11 19:55:23,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2024-10-11 19:55:23,878 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2024-10-11 19:55:23,879 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2024-10-11 19:55:23,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:55:23,881 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-11 19:55:23,881 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-11 19:55:23,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-11 19:55:23,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-11 19:55:23,882 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-11 19:55:23,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:55:23,882 INFO L407 BasicCegarLoop]: Path program histogram: [7] [2024-10-11 19:55:23,884 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:55:23,885 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:55:23,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:55:23 BasicIcfg [2024-10-11 19:55:23,888 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:55:23,889 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:55:23,889 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:55:23,889 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:55:23,889 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:55:20" (3/4) ... [2024-10-11 19:55:23,891 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:55:23,893 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-11 19:55:23,893 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-11 19:55:23,893 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-11 19:55:23,897 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2024-10-11 19:55:23,897 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-11 19:55:23,897 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-11 19:55:23,897 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 19:55:23,963 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:55:23,964 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:55:23,964 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:55:23,964 INFO L158 Benchmark]: Toolchain (without parser) took 3852.16ms. Allocated memory was 182.5MB in the beginning and 241.2MB in the end (delta: 58.7MB). Free memory was 113.3MB in the beginning and 117.6MB in the end (delta: -4.4MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2024-10-11 19:55:23,965 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:55:23,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.91ms. Allocated memory is still 182.5MB. Free memory was 113.1MB in the beginning and 100.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 19:55:23,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.84ms. Allocated memory is still 182.5MB. Free memory was 100.2MB in the beginning and 154.7MB in the end (delta: -54.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2024-10-11 19:55:23,965 INFO L158 Benchmark]: Boogie Preprocessor took 53.23ms. Allocated memory is still 182.5MB. Free memory was 154.7MB in the beginning and 152.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:55:23,966 INFO L158 Benchmark]: RCFGBuilder took 518.75ms. Allocated memory is still 182.5MB. Free memory was 152.6MB in the beginning and 112.8MB in the end (delta: 39.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-10-11 19:55:23,966 INFO L158 Benchmark]: TraceAbstraction took 2913.67ms. Allocated memory was 182.5MB in the beginning and 241.2MB in the end (delta: 58.7MB). Free memory was 112.0MB in the beginning and 122.9MB in the end (delta: -10.8MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2024-10-11 19:55:23,966 INFO L158 Benchmark]: Witness Printer took 75.10ms. Allocated memory is still 241.2MB. Free memory was 121.8MB in the beginning and 117.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:55:23,967 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.91ms. Allocated memory is still 182.5MB. Free memory was 113.1MB in the beginning and 100.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.84ms. Allocated memory is still 182.5MB. Free memory was 100.2MB in the beginning and 154.7MB in the end (delta: -54.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.23ms. Allocated memory is still 182.5MB. Free memory was 154.7MB in the beginning and 152.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 518.75ms. Allocated memory is still 182.5MB. Free memory was 152.6MB in the beginning and 112.8MB in the end (delta: 39.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2913.67ms. Allocated memory was 182.5MB in the beginning and 241.2MB in the end (delta: 58.7MB). Free memory was 112.0MB in the beginning and 122.9MB in the end (delta: -10.8MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Witness Printer took 75.10ms. Allocated memory is still 241.2MB. Free memory was 121.8MB in the beginning and 117.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 101]: 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, 63 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: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 235 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 933 IncrementalHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 6 mSDtfsCounter, 933 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=4, InterpolantAutomatonStates: 44, 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-10-11 19:55:23,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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