./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --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/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:45:52,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:45:52,529 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:45:52,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:45:52,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:45:52,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:45:52,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:45:52,582 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:45:52,583 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:45:52,584 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:45:52,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:45:52,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:45:52,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:45:52,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:45:52,587 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:45:52,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:45:52,587 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:45:52,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:45:52,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:45:52,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:45:52,589 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:45:52,593 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:45:52,593 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:45:52,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:45:52,594 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:45:52,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:45:52,594 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:45:52,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:45:52,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:45:52,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:45:52,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:45:52,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:45:52,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:45:52,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:45:52,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:45:52,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:45:52,602 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:45:52,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:45:52,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:45:52,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:45:52,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:45:52,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:45:52,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2024-11-22 21:45:52,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:45:52,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:45:52,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:45:52,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:45:52,889 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:45:52,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-22 21:45:54,361 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:45:54,556 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:45:54,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-22 21:45:54,563 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566ab3ed7/10585d9c86df4656b0305f77ed585c4e/FLAG84546cfb2 [2024-11-22 21:45:54,575 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566ab3ed7/10585d9c86df4656b0305f77ed585c4e [2024-11-22 21:45:54,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:45:54,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:45:54,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:45:54,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:45:54,587 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:45:54,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,589 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d63e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54, skipping insertion in model container [2024-11-22 21:45:54,589 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:45:54,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:45:54,822 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:45:54,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:45:54,860 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:45:54,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54 WrapperNode [2024-11-22 21:45:54,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:45:54,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:45:54,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:45:54,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:45:54,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,901 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2024-11-22 21:45:54,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:45:54,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:45:54,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:45:54,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:45:54,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,931 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 21:45:54,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,940 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:45:54,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:45:54,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:45:54,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:45:54,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (1/1) ... [2024-11-22 21:45:54,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:45:54,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:45:54,994 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 21:45:54,998 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 21:45:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:45:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-22 21:45:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-22 21:45:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-22 21:45:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-22 21:45:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-22 21:45:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-22 21:45:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:45:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:45:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:45:55,064 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 21:45:55,165 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:45:55,167 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:45:55,388 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:45:55,389 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:45:55,564 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:45:55,564 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 21:45:55,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:45:55 BoogieIcfgContainer [2024-11-22 21:45:55,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:45:55,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:45:55,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:45:55,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:45:55,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:45:54" (1/3) ... [2024-11-22 21:45:55,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@961fc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:45:55, skipping insertion in model container [2024-11-22 21:45:55,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:54" (2/3) ... [2024-11-22 21:45:55,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@961fc63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:45:55, skipping insertion in model container [2024-11-22 21:45:55,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:45:55" (3/3) ... [2024-11-22 21:45:55,576 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-11-22 21:45:55,593 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:45:55,593 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 21:45:55,593 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:45:55,646 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-22 21:45:55,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 49 transitions, 119 flow [2024-11-22 21:45:55,748 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2024-11-22 21:45:55,748 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 21:45:55,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-11-22 21:45:55,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 49 transitions, 119 flow [2024-11-22 21:45:55,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 45 transitions, 108 flow [2024-11-22 21:45:55,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:45:55,786 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;@6b035ebe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:45:55,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-22 21:45:55,814 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:45:55,815 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2024-11-22 21:45:55,816 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 21:45:55,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:45:55,817 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:45:55,817 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)] === [2024-11-22 21:45:55,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:45:55,823 INFO L85 PathProgramCache]: Analyzing trace with hash -193127818, now seen corresponding path program 1 times [2024-11-22 21:45:55,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:45:55,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299395711] [2024-11-22 21:45:55,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:45:55,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:45:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:45:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:45:56,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:45:56,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299395711] [2024-11-22 21:45:56,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299395711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:45:56,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:45:56,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:45:56,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881113510] [2024-11-22 21:45:56,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:45:56,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:45:56,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:45:56,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:45:56,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:45:56,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-22 21:45:56,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 21:45:56,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:45:56,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-22 21:45:56,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:45:56,735 INFO L124 PetriNetUnfolderBase]: 1388/2193 cut-off events. [2024-11-22 21:45:56,735 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-11-22 21:45:56,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4425 conditions, 2193 events. 1388/2193 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11629 event pairs, 608 based on Foata normal form. 2/2079 useless extension candidates. Maximal degree in co-relation 3985. Up to 1117 conditions per place. [2024-11-22 21:45:56,763 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 44 selfloop transitions, 5 changer transitions 1/63 dead transitions. [2024-11-22 21:45:56,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 256 flow [2024-11-22 21:45:56,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:45:56,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:45:56,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-22 21:45:56,797 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7006802721088435 [2024-11-22 21:45:56,799 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 108 flow. Second operand 3 states and 103 transitions. [2024-11-22 21:45:56,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 256 flow [2024-11-22 21:45:56,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 236 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-22 21:45:56,822 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 117 flow [2024-11-22 21:45:56,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-11-22 21:45:56,830 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2024-11-22 21:45:56,831 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 117 flow [2024-11-22 21:45:56,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 21:45:56,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:45:56,832 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:45:56,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:45:56,832 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)] === [2024-11-22 21:45:56,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:45:56,833 INFO L85 PathProgramCache]: Analyzing trace with hash 495557236, now seen corresponding path program 1 times [2024-11-22 21:45:56,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:45:56,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867173460] [2024-11-22 21:45:56,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:45:56,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:45:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:45:56,924 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 21:45:56,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:45:56,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867173460] [2024-11-22 21:45:56,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867173460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:45:56,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:45:56,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:45:56,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534231081] [2024-11-22 21:45:56,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:45:56,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:45:56,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:45:56,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:45:56,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:45:56,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-22 21:45:56,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 21:45:56,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:45:56,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-22 21:45:56,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:45:57,244 INFO L124 PetriNetUnfolderBase]: 2053/3190 cut-off events. [2024-11-22 21:45:57,245 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-22 21:45:57,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6469 conditions, 3190 events. 2053/3190 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 16606 event pairs, 1611 based on Foata normal form. 0/3140 useless extension candidates. Maximal degree in co-relation 4806. Up to 2732 conditions per place. [2024-11-22 21:45:57,256 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 43 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2024-11-22 21:45:57,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 61 transitions, 251 flow [2024-11-22 21:45:57,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:45:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:45:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-11-22 21:45:57,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-11-22 21:45:57,259 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 117 flow. Second operand 3 states and 91 transitions. [2024-11-22 21:45:57,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 61 transitions, 251 flow [2024-11-22 21:45:57,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 61 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:45:57,262 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 156 flow [2024-11-22 21:45:57,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-11-22 21:45:57,263 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2024-11-22 21:45:57,264 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 156 flow [2024-11-22 21:45:57,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 21:45:57,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:45:57,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:45:57,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:45:57,265 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)] === [2024-11-22 21:45:57,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:45:57,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1119709064, now seen corresponding path program 1 times [2024-11-22 21:45:57,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:45:57,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114134001] [2024-11-22 21:45:57,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:45:57,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:45:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:45:57,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:45:57,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:45:57,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114134001] [2024-11-22 21:45:57,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114134001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:45:57,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:45:57,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:45:57,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360520392] [2024-11-22 21:45:57,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:45:57,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:45:57,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:45:57,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:45:57,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:45:57,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-22 21:45:57,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 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 21:45:57,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:45:57,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-22 21:45:57,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:45:57,919 INFO L124 PetriNetUnfolderBase]: 2102/3781 cut-off events. [2024-11-22 21:45:57,920 INFO L125 PetriNetUnfolderBase]: For 228/234 co-relation queries the response was YES. [2024-11-22 21:45:57,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7815 conditions, 3781 events. 2102/3781 cut-off events. For 228/234 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 25456 event pairs, 685 based on Foata normal form. 38/3742 useless extension candidates. Maximal degree in co-relation 5960. Up to 1318 conditions per place. [2024-11-22 21:45:57,943 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 56 selfloop transitions, 15 changer transitions 7/97 dead transitions. [2024-11-22 21:45:57,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 97 transitions, 420 flow [2024-11-22 21:45:57,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:45:57,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:45:57,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2024-11-22 21:45:57,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689795918367347 [2024-11-22 21:45:57,949 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 156 flow. Second operand 5 states and 169 transitions. [2024-11-22 21:45:57,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 97 transitions, 420 flow [2024-11-22 21:45:57,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 97 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:45:57,955 INFO L231 Difference]: Finished difference. Result has 55 places, 60 transitions, 227 flow [2024-11-22 21:45:57,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=55, PETRI_TRANSITIONS=60} [2024-11-22 21:45:57,956 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2024-11-22 21:45:57,957 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 60 transitions, 227 flow [2024-11-22 21:45:57,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 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 21:45:57,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:45:57,958 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:45:57,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 21:45:57,959 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)] === [2024-11-22 21:45:57,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:45:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash 430611782, now seen corresponding path program 2 times [2024-11-22 21:45:57,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:45:57,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100419893] [2024-11-22 21:45:57,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:45:57,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:45:57,980 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:45:57,980 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:45:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:45:58,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:45:58,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100419893] [2024-11-22 21:45:58,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100419893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:45:58,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:45:58,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:45:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290974633] [2024-11-22 21:45:58,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:45:58,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:45:58,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:45:58,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:45:58,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:45:58,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-22 21:45:58,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 60 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 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 21:45:58,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:45:58,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-22 21:45:58,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:45:58,549 INFO L124 PetriNetUnfolderBase]: 1953/3614 cut-off events. [2024-11-22 21:45:58,549 INFO L125 PetriNetUnfolderBase]: For 1814/1859 co-relation queries the response was YES. [2024-11-22 21:45:58,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9024 conditions, 3614 events. 1953/3614 cut-off events. For 1814/1859 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 24780 event pairs, 589 based on Foata normal form. 54/3580 useless extension candidates. Maximal degree in co-relation 6673. Up to 1161 conditions per place. [2024-11-22 21:45:58,575 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 56 selfloop transitions, 17 changer transitions 6/98 dead transitions. [2024-11-22 21:45:58,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 495 flow [2024-11-22 21:45:58,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:45:58,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:45:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-11-22 21:45:58,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6816326530612244 [2024-11-22 21:45:58,577 INFO L175 Difference]: Start difference. First operand has 55 places, 60 transitions, 227 flow. Second operand 5 states and 167 transitions. [2024-11-22 21:45:58,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 495 flow [2024-11-22 21:45:58,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 98 transitions, 495 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 21:45:58,583 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 291 flow [2024-11-22 21:45:58,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=291, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2024-11-22 21:45:58,585 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2024-11-22 21:45:58,586 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 291 flow [2024-11-22 21:45:58,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 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 21:45:58,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:45:58,587 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:45:58,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 21:45:58,587 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)] === [2024-11-22 21:45:58,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:45:58,588 INFO L85 PathProgramCache]: Analyzing trace with hash 164558312, now seen corresponding path program 3 times [2024-11-22 21:45:58,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:45:58,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956484403] [2024-11-22 21:45:58,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:45:58,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:45:58,613 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 21:45:58,614 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:45:58,750 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 21:45:58,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:45:58,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956484403] [2024-11-22 21:45:58,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956484403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:45:58,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:45:58,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:45:58,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537922556] [2024-11-22 21:45:58,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:45:58,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:45:58,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:45:58,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:45:58,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:45:58,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-22 21:45:58,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:45:58,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:45:58,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-22 21:45:58,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:45:59,085 INFO L124 PetriNetUnfolderBase]: 1390/2606 cut-off events. [2024-11-22 21:45:59,085 INFO L125 PetriNetUnfolderBase]: For 2756/2781 co-relation queries the response was YES. [2024-11-22 21:45:59,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7318 conditions, 2606 events. 1390/2606 cut-off events. For 2756/2781 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 16614 event pairs, 371 based on Foata normal form. 58/2599 useless extension candidates. Maximal degree in co-relation 6711. Up to 964 conditions per place. [2024-11-22 21:45:59,097 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 51 selfloop transitions, 24 changer transitions 26/118 dead transitions. [2024-11-22 21:45:59,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 118 transitions, 712 flow [2024-11-22 21:45:59,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:45:59,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:45:59,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 192 transitions. [2024-11-22 21:45:59,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6530612244897959 [2024-11-22 21:45:59,100 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 291 flow. Second operand 6 states and 192 transitions. [2024-11-22 21:45:59,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 118 transitions, 712 flow [2024-11-22 21:45:59,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 118 transitions, 675 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:45:59,105 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 346 flow [2024-11-22 21:45:59,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-22 21:45:59,106 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2024-11-22 21:45:59,106 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 346 flow [2024-11-22 21:45:59,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:45:59,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:45:59,106 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:45:59,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 21:45:59,107 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)] === [2024-11-22 21:45:59,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:45:59,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1658686974, now seen corresponding path program 4 times [2024-11-22 21:45:59,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:45:59,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897282201] [2024-11-22 21:45:59,108 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:45:59,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:45:59,125 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:45:59,126 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:45:59,313 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 21:45:59,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:45:59,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897282201] [2024-11-22 21:45:59,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897282201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:45:59,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:45:59,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:45:59,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826026134] [2024-11-22 21:45:59,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:45:59,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:45:59,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:45:59,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:45:59,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:45:59,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-22 21:45:59,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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 21:45:59,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:45:59,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-22 21:45:59,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:45:59,603 INFO L124 PetriNetUnfolderBase]: 643/1258 cut-off events. [2024-11-22 21:45:59,603 INFO L125 PetriNetUnfolderBase]: For 1481/1501 co-relation queries the response was YES. [2024-11-22 21:45:59,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3709 conditions, 1258 events. 643/1258 cut-off events. For 1481/1501 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6963 event pairs, 190 based on Foata normal form. 32/1253 useless extension candidates. Maximal degree in co-relation 1383. Up to 458 conditions per place. [2024-11-22 21:45:59,610 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 46 selfloop transitions, 20 changer transitions 18/101 dead transitions. [2024-11-22 21:45:59,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 101 transitions, 639 flow [2024-11-22 21:45:59,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:45:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:45:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 226 transitions. [2024-11-22 21:45:59,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.576530612244898 [2024-11-22 21:45:59,612 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 346 flow. Second operand 8 states and 226 transitions. [2024-11-22 21:45:59,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 101 transitions, 639 flow [2024-11-22 21:45:59,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 101 transitions, 617 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-22 21:45:59,616 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 335 flow [2024-11-22 21:45:59,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=335, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2024-11-22 21:45:59,617 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 19 predicate places. [2024-11-22 21:45:59,618 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 335 flow [2024-11-22 21:45:59,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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 21:45:59,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:45:59,618 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:45:59,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 21:45:59,619 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)] === [2024-11-22 21:45:59,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:45:59,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1495295746, now seen corresponding path program 5 times [2024-11-22 21:45:59,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:45:59,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633926566] [2024-11-22 21:45:59,620 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:45:59,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:45:59,634 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:45:59,634 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:45:59,740 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 21:45:59,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:45:59,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633926566] [2024-11-22 21:45:59,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633926566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:45:59,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:45:59,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:45:59,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083770084] [2024-11-22 21:45:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:45:59,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:45:59,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:45:59,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:45:59,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:45:59,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-22 21:45:59,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 335 flow. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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 21:45:59,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:45:59,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-22 21:45:59,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:46:00,001 INFO L124 PetriNetUnfolderBase]: 454/899 cut-off events. [2024-11-22 21:46:00,002 INFO L125 PetriNetUnfolderBase]: For 1788/1794 co-relation queries the response was YES. [2024-11-22 21:46:00,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2767 conditions, 899 events. 454/899 cut-off events. For 1788/1794 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4576 event pairs, 131 based on Foata normal form. 20/886 useless extension candidates. Maximal degree in co-relation 1367. Up to 308 conditions per place. [2024-11-22 21:46:00,008 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 40 selfloop transitions, 14 changer transitions 24/92 dead transitions. [2024-11-22 21:46:00,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 92 transitions, 612 flow [2024-11-22 21:46:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:46:00,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:46:00,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 221 transitions. [2024-11-22 21:46:00,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5637755102040817 [2024-11-22 21:46:00,010 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 335 flow. Second operand 8 states and 221 transitions. [2024-11-22 21:46:00,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 92 transitions, 612 flow [2024-11-22 21:46:00,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 92 transitions, 554 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-11-22 21:46:00,014 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 256 flow [2024-11-22 21:46:00,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=256, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2024-11-22 21:46:00,015 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 18 predicate places. [2024-11-22 21:46:00,015 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 256 flow [2024-11-22 21:46:00,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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 21:46:00,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:46:00,016 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:46:00,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 21:46:00,016 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:46:00,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:46:00,017 INFO L85 PathProgramCache]: Analyzing trace with hash -344408210, now seen corresponding path program 2 times [2024-11-22 21:46:00,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:46:00,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885949782] [2024-11-22 21:46:00,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:46:00,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:46:00,033 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:46:00,036 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:46:00,131 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 21:46:00,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:46:00,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885949782] [2024-11-22 21:46:00,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885949782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:46:00,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:46:00,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 21:46:00,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098370537] [2024-11-22 21:46:00,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:46:00,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:46:00,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:46:00,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:46:00,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:46:00,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-22 21:46:00,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 256 flow. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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 21:46:00,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:46:00,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-22 21:46:00,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:46:00,294 INFO L124 PetriNetUnfolderBase]: 153/329 cut-off events. [2024-11-22 21:46:00,294 INFO L125 PetriNetUnfolderBase]: For 428/434 co-relation queries the response was YES. [2024-11-22 21:46:00,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 329 events. 153/329 cut-off events. For 428/434 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1167 event pairs, 52 based on Foata normal form. 20/342 useless extension candidates. Maximal degree in co-relation 607. Up to 125 conditions per place. [2024-11-22 21:46:00,296 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2024-11-22 21:46:00,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 64 transitions, 398 flow [2024-11-22 21:46:00,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 21:46:00,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 21:46:00,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 201 transitions. [2024-11-22 21:46:00,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5127551020408163 [2024-11-22 21:46:00,298 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 256 flow. Second operand 8 states and 201 transitions. [2024-11-22 21:46:00,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 64 transitions, 398 flow [2024-11-22 21:46:00,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 64 transitions, 335 flow, removed 7 selfloop flow, removed 12 redundant places. [2024-11-22 21:46:00,300 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-22 21:46:00,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-22 21:46:00,301 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2024-11-22 21:46:00,301 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-22 21:46:00,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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 21:46:00,304 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-22 21:46:00,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-22 21:46:00,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-22 21:46:00,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-22 21:46:00,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-22 21:46:00,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 21:46:00,306 INFO L407 BasicCegarLoop]: Path program histogram: [5, 2, 1] [2024-11-22 21:46:00,309 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 21:46:00,309 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:46:00,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:46:00 BasicIcfg [2024-11-22 21:46:00,315 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:46:00,315 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:46:00,315 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:46:00,316 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:46:00,316 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:45:55" (3/4) ... [2024-11-22 21:46:00,318 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 21:46:00,321 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-22 21:46:00,322 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-22 21:46:00,322 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-22 21:46:00,328 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2024-11-22 21:46:00,329 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-22 21:46:00,329 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-22 21:46:00,329 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 21:46:00,426 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:46:00,426 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 21:46:00,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:46:00,427 INFO L158 Benchmark]: Toolchain (without parser) took 5847.97ms. Allocated memory was 155.2MB in the beginning and 276.8MB in the end (delta: 121.6MB). Free memory was 99.2MB in the beginning and 241.3MB in the end (delta: -142.1MB). Peak memory consumption was 144.1MB. Max. memory is 16.1GB. [2024-11-22 21:46:00,427 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory was 122.1MB in the beginning and 121.9MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:46:00,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.09ms. Allocated memory is still 155.2MB. Free memory was 99.2MB in the beginning and 86.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 21:46:00,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.54ms. Allocated memory is still 155.2MB. Free memory was 85.9MB in the beginning and 84.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:46:00,428 INFO L158 Benchmark]: Boogie Preprocessor took 40.73ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:46:00,428 INFO L158 Benchmark]: RCFGBuilder took 620.66ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 50.2MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-22 21:46:00,428 INFO L158 Benchmark]: TraceAbstraction took 4747.13ms. Allocated memory was 155.2MB in the beginning and 276.8MB in the end (delta: 121.6MB). Free memory was 49.6MB in the beginning and 83.0MB in the end (delta: -33.4MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. [2024-11-22 21:46:00,428 INFO L158 Benchmark]: Witness Printer took 110.98ms. Allocated memory is still 276.8MB. Free memory was 83.0MB in the beginning and 241.3MB in the end (delta: -158.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:46:00,430 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 155.2MB. Free memory was 122.1MB in the beginning and 121.9MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.09ms. Allocated memory is still 155.2MB. Free memory was 99.2MB in the beginning and 86.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.54ms. Allocated memory is still 155.2MB. Free memory was 85.9MB in the beginning and 84.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.73ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 82.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.66ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 50.2MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4747.13ms. Allocated memory was 155.2MB in the beginning and 276.8MB in the end (delta: 121.6MB). Free memory was 49.6MB in the beginning and 83.0MB in the end (delta: -33.4MB). Peak memory consumption was 89.6MB. Max. memory is 16.1GB. * Witness Printer took 110.98ms. Allocated memory is still 276.8MB. Free memory was 83.0MB in the beginning and 241.3MB in the end (delta: -158.4MB). 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: 71]: 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, 75 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: 4.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1176 IncrementalHoareTripleChecker+Invalid, 1242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 11 mSDtfsCounter, 1176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=5, InterpolantAutomatonStates: 46, 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, 1.1s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 21:46:00,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE