./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.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 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:41:37,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:41:38,056 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:41:38,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:41:38,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:41:38,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:41:38,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:41:38,085 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:41:38,085 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:41:38,087 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:41:38,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:41:38,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:41:38,088 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:41:38,088 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:41:38,088 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:41:38,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:41:38,089 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:41:38,089 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:41:38,089 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:41:38,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:41:38,090 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:41:38,093 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:41:38,093 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:41:38,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:41:38,093 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:41:38,093 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:41:38,093 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:41:38,094 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:41:38,094 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:41:38,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:41:38,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:41:38,094 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:41:38,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:41:38,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:41:38,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:41:38,095 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:41:38,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:41:38,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:41:38,095 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:41:38,096 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:41:38,096 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:41:38,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:41:38,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b [2024-11-20 17:41:38,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:41:38,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:41:38,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:41:38,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:41:38,349 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:41:38,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-20 17:41:39,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:41:39,823 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:41:39,823 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-20 17:41:39,829 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96387fee7/74ec03c284114b80b3df4143132558c3/FLAGbeb33a46f [2024-11-20 17:41:40,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96387fee7/74ec03c284114b80b3df4143132558c3 [2024-11-20 17:41:40,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:41:40,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:41:40,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:41:40,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:41:40,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:41:40,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12410a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40, skipping insertion in model container [2024-11-20 17:41:40,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:41:40,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:41:40,529 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:41:40,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:41:40,557 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:41:40,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40 WrapperNode [2024-11-20 17:41:40,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:41:40,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:41:40,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:41:40,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:41:40,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,585 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 141 [2024-11-20 17:41:40,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:41:40,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:41:40,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:41:40,587 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:41:40,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,609 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]. [2024-11-20 17:41:40,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,624 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:41:40,625 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:41:40,625 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:41:40,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:41:40,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (1/1) ... [2024-11-20 17:41:40,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:41:40,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:41:40,659 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) [2024-11-20 17:41:40,662 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 [2024-11-20 17:41:40,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:41:40,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 17:41:40,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 17:41:40,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 17:41:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 17:41:40,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:41:40,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:41:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:41:40,701 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:41:40,770 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:41:40,772 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:41:40,965 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:41:40,966 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:41:41,084 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:41:41,084 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:41:41,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:41:41 BoogieIcfgContainer [2024-11-20 17:41:41,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:41:41,086 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:41:41,086 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:41:41,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:41:41,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:41:40" (1/3) ... [2024-11-20 17:41:41,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394ae6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:41:41, skipping insertion in model container [2024-11-20 17:41:41,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:40" (2/3) ... [2024-11-20 17:41:41,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394ae6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:41:41, skipping insertion in model container [2024-11-20 17:41:41,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:41:41" (3/3) ... [2024-11-20 17:41:41,092 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2024-11-20 17:41:41,105 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:41:41,106 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 17:41:41,106 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:41:41,157 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 17:41:41,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 126 flow [2024-11-20 17:41:41,220 INFO L124 PetriNetUnfolderBase]: 2/54 cut-off events. [2024-11-20 17:41:41,220 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 17:41:41,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 54 events. 2/54 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-20 17:41:41,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 56 transitions, 126 flow [2024-11-20 17:41:41,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 53 transitions, 118 flow [2024-11-20 17:41:41,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:41:41,239 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;@c036f49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:41:41,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-20 17:41:41,254 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:41:41,254 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-20 17:41:41,255 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 17:41:41,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:41,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:41,256 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:41,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:41,260 INFO L85 PathProgramCache]: Analyzing trace with hash 532631702, now seen corresponding path program 1 times [2024-11-20 17:41:41,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:41,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340607507] [2024-11-20 17:41:41,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:41,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:41,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340607507] [2024-11-20 17:41:41,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340607507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:41,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:41,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:41:41,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966503943] [2024-11-20 17:41:41,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:41,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:41:41,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:41,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:41:41,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:41:41,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2024-11-20 17:41:41,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 53 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2024-11-20 17:41:41,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:41,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2024-11-20 17:41:41,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:42,000 INFO L124 PetriNetUnfolderBase]: 168/427 cut-off events. [2024-11-20 17:41:42,000 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-20 17:41:42,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 427 events. 168/427 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1942 event pairs, 56 based on Foata normal form. 4/407 useless extension candidates. Maximal degree in co-relation 684. Up to 98 conditions per place. [2024-11-20 17:41:42,005 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 51 selfloop transitions, 10 changer transitions 12/94 dead transitions. [2024-11-20 17:41:42,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 373 flow [2024-11-20 17:41:42,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:41:42,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:41:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 269 transitions. [2024-11-20 17:41:42,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6004464285714286 [2024-11-20 17:41:42,023 INFO L175 Difference]: Start difference. First operand has 58 places, 53 transitions, 118 flow. Second operand 8 states and 269 transitions. [2024-11-20 17:41:42,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 373 flow [2024-11-20 17:41:42,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 94 transitions, 347 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:41:42,031 INFO L231 Difference]: Finished difference. Result has 62 places, 56 transitions, 150 flow [2024-11-20 17:41:42,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=150, PETRI_PLACES=62, PETRI_TRANSITIONS=56} [2024-11-20 17:41:42,037 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2024-11-20 17:41:42,037 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 150 flow [2024-11-20 17:41:42,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2024-11-20 17:41:42,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:42,038 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:42,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:41:42,039 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:42,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1887306448, now seen corresponding path program 2 times [2024-11-20 17:41:42,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:42,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459383479] [2024-11-20 17:41:42,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:42,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:42,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:42,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459383479] [2024-11-20 17:41:42,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459383479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:42,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:42,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:41:42,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810290268] [2024-11-20 17:41:42,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:42,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:41:42,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:42,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:41:42,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:41:42,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-20 17:41:42,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:41:42,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:42,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-20 17:41:42,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:42,360 INFO L124 PetriNetUnfolderBase]: 330/757 cut-off events. [2024-11-20 17:41:42,360 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-20 17:41:42,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 757 events. 330/757 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3878 event pairs, 46 based on Foata normal form. 0/720 useless extension candidates. Maximal degree in co-relation 1469. Up to 418 conditions per place. [2024-11-20 17:41:42,365 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 50 selfloop transitions, 18 changer transitions 6/98 dead transitions. [2024-11-20 17:41:42,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 98 transitions, 385 flow [2024-11-20 17:41:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:41:42,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:41:42,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 230 transitions. [2024-11-20 17:41:42,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5867346938775511 [2024-11-20 17:41:42,367 INFO L175 Difference]: Start difference. First operand has 62 places, 56 transitions, 150 flow. Second operand 7 states and 230 transitions. [2024-11-20 17:41:42,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 98 transitions, 385 flow [2024-11-20 17:41:42,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 98 transitions, 383 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-20 17:41:42,370 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 261 flow [2024-11-20 17:41:42,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=261, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2024-11-20 17:41:42,371 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2024-11-20 17:41:42,371 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 261 flow [2024-11-20 17:41:42,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:41:42,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:42,372 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:42,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:41:42,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:42,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:42,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2089213480, now seen corresponding path program 3 times [2024-11-20 17:41:42,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:42,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665817207] [2024-11-20 17:41:42,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:42,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:42,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:42,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:42,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665817207] [2024-11-20 17:41:42,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665817207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:42,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:42,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:41:42,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510567010] [2024-11-20 17:41:42,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:42,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:41:42,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:42,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:41:42,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:41:42,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2024-11-20 17:41:42,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-20 17:41:42,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:42,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2024-11-20 17:41:42,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:42,534 INFO L124 PetriNetUnfolderBase]: 209/577 cut-off events. [2024-11-20 17:41:42,534 INFO L125 PetriNetUnfolderBase]: For 234/237 co-relation queries the response was YES. [2024-11-20 17:41:42,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1369 conditions, 577 events. 209/577 cut-off events. For 234/237 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3044 event pairs, 101 based on Foata normal form. 8/553 useless extension candidates. Maximal degree in co-relation 833. Up to 250 conditions per place. [2024-11-20 17:41:42,537 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 33 selfloop transitions, 2 changer transitions 1/76 dead transitions. [2024-11-20 17:41:42,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 354 flow [2024-11-20 17:41:42,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:41:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:41:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-20 17:41:42,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2024-11-20 17:41:42,539 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 261 flow. Second operand 3 states and 116 transitions. [2024-11-20 17:41:42,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 354 flow [2024-11-20 17:41:42,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 76 transitions, 349 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-20 17:41:42,542 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 264 flow [2024-11-20 17:41:42,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-11-20 17:41:42,543 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2024-11-20 17:41:42,543 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 264 flow [2024-11-20 17:41:42,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-20 17:41:42,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:42,544 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:42,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:41:42,544 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:42,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:42,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1262023420, now seen corresponding path program 4 times [2024-11-20 17:41:42,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:42,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616692327] [2024-11-20 17:41:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:42,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:42,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:42,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616692327] [2024-11-20 17:41:42,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616692327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:42,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:42,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:41:42,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840838493] [2024-11-20 17:41:42,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:42,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:41:42,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:41:42,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:41:42,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2024-11-20 17:41:42,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-20 17:41:42,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:42,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2024-11-20 17:41:42,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:42,778 INFO L124 PetriNetUnfolderBase]: 228/599 cut-off events. [2024-11-20 17:41:42,778 INFO L125 PetriNetUnfolderBase]: For 369/381 co-relation queries the response was YES. [2024-11-20 17:41:42,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 599 events. 228/599 cut-off events. For 369/381 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2992 event pairs, 59 based on Foata normal form. 6/571 useless extension candidates. Maximal degree in co-relation 747. Up to 366 conditions per place. [2024-11-20 17:41:42,782 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 36 selfloop transitions, 10 changer transitions 4/81 dead transitions. [2024-11-20 17:41:42,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 389 flow [2024-11-20 17:41:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:41:42,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:41:42,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-11-20 17:41:42,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2024-11-20 17:41:42,784 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 264 flow. Second operand 5 states and 174 transitions. [2024-11-20 17:41:42,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 389 flow [2024-11-20 17:41:42,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 385 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:41:42,789 INFO L231 Difference]: Finished difference. Result has 75 places, 67 transitions, 266 flow [2024-11-20 17:41:42,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=266, PETRI_PLACES=75, PETRI_TRANSITIONS=67} [2024-11-20 17:41:42,790 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 17 predicate places. [2024-11-20 17:41:42,790 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 67 transitions, 266 flow [2024-11-20 17:41:42,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-20 17:41:42,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:42,791 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:42,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:41:42,791 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:42,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:42,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1464129024, now seen corresponding path program 5 times [2024-11-20 17:41:42,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:42,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941861992] [2024-11-20 17:41:42,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:42,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:42,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:42,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:42,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941861992] [2024-11-20 17:41:42,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941861992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:42,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:42,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:41:42,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774214720] [2024-11-20 17:41:42,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:42,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:41:42,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:42,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:41:42,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:41:42,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-20 17:41:42,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 67 transitions, 266 flow. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:41:42,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:42,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-20 17:41:42,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:43,102 INFO L124 PetriNetUnfolderBase]: 346/861 cut-off events. [2024-11-20 17:41:43,103 INFO L125 PetriNetUnfolderBase]: For 569/631 co-relation queries the response was YES. [2024-11-20 17:41:43,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2191 conditions, 861 events. 346/861 cut-off events. For 569/631 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4655 event pairs, 51 based on Foata normal form. 8/817 useless extension candidates. Maximal degree in co-relation 1165. Up to 446 conditions per place. [2024-11-20 17:41:43,109 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 54 selfloop transitions, 22 changer transitions 0/104 dead transitions. [2024-11-20 17:41:43,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 104 transitions, 536 flow [2024-11-20 17:41:43,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:41:43,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:41:43,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 229 transitions. [2024-11-20 17:41:43,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5841836734693877 [2024-11-20 17:41:43,110 INFO L175 Difference]: Start difference. First operand has 75 places, 67 transitions, 266 flow. Second operand 7 states and 229 transitions. [2024-11-20 17:41:43,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 104 transitions, 536 flow [2024-11-20 17:41:43,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 104 transitions, 502 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-20 17:41:43,115 INFO L231 Difference]: Finished difference. Result has 80 places, 81 transitions, 385 flow [2024-11-20 17:41:43,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=385, PETRI_PLACES=80, PETRI_TRANSITIONS=81} [2024-11-20 17:41:43,116 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 22 predicate places. [2024-11-20 17:41:43,117 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 81 transitions, 385 flow [2024-11-20 17:41:43,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:41:43,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:43,118 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:43,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:41:43,118 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:43,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:43,119 INFO L85 PathProgramCache]: Analyzing trace with hash 277291846, now seen corresponding path program 6 times [2024-11-20 17:41:43,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:43,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658935701] [2024-11-20 17:41:43,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:43,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:43,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:43,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:43,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658935701] [2024-11-20 17:41:43,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658935701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:43,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:43,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:41:43,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791184329] [2024-11-20 17:41:43,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:43,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:41:43,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:43,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:41:43,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:41:43,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2024-11-20 17:41:43,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 81 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-20 17:41:43,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:43,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2024-11-20 17:41:43,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:43,266 INFO L124 PetriNetUnfolderBase]: 248/725 cut-off events. [2024-11-20 17:41:43,267 INFO L125 PetriNetUnfolderBase]: For 589/643 co-relation queries the response was YES. [2024-11-20 17:41:43,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1896 conditions, 725 events. 248/725 cut-off events. For 589/643 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4211 event pairs, 118 based on Foata normal form. 18/709 useless extension candidates. Maximal degree in co-relation 1076. Up to 266 conditions per place. [2024-11-20 17:41:43,271 INFO L140 encePairwiseOnDemand]: 53/56 looper letters, 36 selfloop transitions, 2 changer transitions 0/88 dead transitions. [2024-11-20 17:41:43,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 88 transitions, 485 flow [2024-11-20 17:41:43,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:41:43,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:41:43,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2024-11-20 17:41:43,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2024-11-20 17:41:43,272 INFO L175 Difference]: Start difference. First operand has 80 places, 81 transitions, 385 flow. Second operand 3 states and 117 transitions. [2024-11-20 17:41:43,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 88 transitions, 485 flow [2024-11-20 17:41:43,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 88 transitions, 473 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-20 17:41:43,275 INFO L231 Difference]: Finished difference. Result has 83 places, 81 transitions, 381 flow [2024-11-20 17:41:43,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=83, PETRI_TRANSITIONS=81} [2024-11-20 17:41:43,278 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 25 predicate places. [2024-11-20 17:41:43,278 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 81 transitions, 381 flow [2024-11-20 17:41:43,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-20 17:41:43,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:43,279 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:43,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:41:43,279 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:43,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:43,280 INFO L85 PathProgramCache]: Analyzing trace with hash -756262732, now seen corresponding path program 7 times [2024-11-20 17:41:43,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:43,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623119167] [2024-11-20 17:41:43,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:43,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:43,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:43,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623119167] [2024-11-20 17:41:43,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623119167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:43,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:43,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:41:43,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962493886] [2024-11-20 17:41:43,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:43,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:41:43,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:43,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:41:43,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:41:43,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2024-11-20 17:41:43,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 81 transitions, 381 flow. Second operand has 7 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2024-11-20 17:41:43,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:43,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2024-11-20 17:41:43,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:43,575 INFO L124 PetriNetUnfolderBase]: 309/731 cut-off events. [2024-11-20 17:41:43,575 INFO L125 PetriNetUnfolderBase]: For 723/748 co-relation queries the response was YES. [2024-11-20 17:41:43,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2102 conditions, 731 events. 309/731 cut-off events. For 723/748 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3793 event pairs, 101 based on Foata normal form. 3/682 useless extension candidates. Maximal degree in co-relation 1152. Up to 204 conditions per place. [2024-11-20 17:41:43,579 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 48 selfloop transitions, 11 changer transitions 12/112 dead transitions. [2024-11-20 17:41:43,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 112 transitions, 617 flow [2024-11-20 17:41:43,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 17:41:43,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 17:41:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 258 transitions. [2024-11-20 17:41:43,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5758928571428571 [2024-11-20 17:41:43,580 INFO L175 Difference]: Start difference. First operand has 83 places, 81 transitions, 381 flow. Second operand 8 states and 258 transitions. [2024-11-20 17:41:43,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 112 transitions, 617 flow [2024-11-20 17:41:43,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 112 transitions, 613 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:41:43,583 INFO L231 Difference]: Finished difference. Result has 89 places, 80 transitions, 398 flow [2024-11-20 17:41:43,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=398, PETRI_PLACES=89, PETRI_TRANSITIONS=80} [2024-11-20 17:41:43,584 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 31 predicate places. [2024-11-20 17:41:43,584 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 80 transitions, 398 flow [2024-11-20 17:41:43,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.285714285714285) internal successors, (198), 7 states have internal predecessors, (198), 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) [2024-11-20 17:41:43,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:43,584 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:43,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:41:43,584 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:43,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:43,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1111021620, now seen corresponding path program 8 times [2024-11-20 17:41:43,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:43,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298293199] [2024-11-20 17:41:43,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:43,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:43,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:43,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298293199] [2024-11-20 17:41:43,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298293199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:43,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:43,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:41:43,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284016541] [2024-11-20 17:41:43,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:43,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:41:43,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:43,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:41:43,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:41:43,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2024-11-20 17:41:43,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 80 transitions, 398 flow. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-20 17:41:43,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:43,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2024-11-20 17:41:43,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:43,794 INFO L124 PetriNetUnfolderBase]: 235/644 cut-off events. [2024-11-20 17:41:43,795 INFO L125 PetriNetUnfolderBase]: For 738/762 co-relation queries the response was YES. [2024-11-20 17:41:43,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 644 events. 235/644 cut-off events. For 738/762 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3472 event pairs, 50 based on Foata normal form. 6/611 useless extension candidates. Maximal degree in co-relation 1829. Up to 369 conditions per place. [2024-11-20 17:41:43,798 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 35 selfloop transitions, 12 changer transitions 8/89 dead transitions. [2024-11-20 17:41:43,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 89 transitions, 524 flow [2024-11-20 17:41:43,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:41:43,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:41:43,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-11-20 17:41:43,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6178571428571429 [2024-11-20 17:41:43,799 INFO L175 Difference]: Start difference. First operand has 89 places, 80 transitions, 398 flow. Second operand 5 states and 173 transitions. [2024-11-20 17:41:43,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 89 transitions, 524 flow [2024-11-20 17:41:43,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 89 transitions, 505 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-20 17:41:43,802 INFO L231 Difference]: Finished difference. Result has 87 places, 73 transitions, 362 flow [2024-11-20 17:41:43,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=87, PETRI_TRANSITIONS=73} [2024-11-20 17:41:43,803 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 29 predicate places. [2024-11-20 17:41:43,803 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 73 transitions, 362 flow [2024-11-20 17:41:43,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-20 17:41:43,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:43,803 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:43,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 17:41:43,803 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:43,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:43,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1895945103, now seen corresponding path program 1 times [2024-11-20 17:41:43,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:43,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285246512] [2024-11-20 17:41:43,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:43,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:43,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:43,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285246512] [2024-11-20 17:41:43,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285246512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:43,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:43,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:41:43,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61455620] [2024-11-20 17:41:43,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:43,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:41:43,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:43,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:41:43,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:41:43,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-20 17:41:43,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 73 transitions, 362 flow. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-20 17:41:43,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:43,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-20 17:41:43,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:43,978 INFO L124 PetriNetUnfolderBase]: 236/617 cut-off events. [2024-11-20 17:41:43,979 INFO L125 PetriNetUnfolderBase]: For 849/885 co-relation queries the response was YES. [2024-11-20 17:41:43,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1814 conditions, 617 events. 236/617 cut-off events. For 849/885 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3012 event pairs, 45 based on Foata normal form. 16/612 useless extension candidates. Maximal degree in co-relation 1250. Up to 263 conditions per place. [2024-11-20 17:41:43,981 INFO L140 encePairwiseOnDemand]: 45/56 looper letters, 43 selfloop transitions, 13 changer transitions 1/83 dead transitions. [2024-11-20 17:41:43,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 83 transitions, 503 flow [2024-11-20 17:41:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:41:43,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:41:43,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-11-20 17:41:43,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5857142857142857 [2024-11-20 17:41:43,982 INFO L175 Difference]: Start difference. First operand has 87 places, 73 transitions, 362 flow. Second operand 5 states and 164 transitions. [2024-11-20 17:41:43,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 83 transitions, 503 flow [2024-11-20 17:41:43,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 83 transitions, 449 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-20 17:41:43,984 INFO L231 Difference]: Finished difference. Result has 84 places, 70 transitions, 352 flow [2024-11-20 17:41:43,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=352, PETRI_PLACES=84, PETRI_TRANSITIONS=70} [2024-11-20 17:41:43,985 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 26 predicate places. [2024-11-20 17:41:43,985 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 70 transitions, 352 flow [2024-11-20 17:41:43,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-20 17:41:43,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:43,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:43,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 17:41:43,986 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:43,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:43,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1771087361, now seen corresponding path program 1 times [2024-11-20 17:41:43,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:43,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148744817] [2024-11-20 17:41:43,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:43,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:44,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:44,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:44,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148744817] [2024-11-20 17:41:44,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148744817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:44,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:44,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:41:44,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847318932] [2024-11-20 17:41:44,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:44,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:41:44,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:44,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:41:44,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:41:44,072 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-20 17:41:44,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 70 transitions, 352 flow. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-20 17:41:44,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:44,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-20 17:41:44,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:44,187 INFO L124 PetriNetUnfolderBase]: 180/502 cut-off events. [2024-11-20 17:41:44,187 INFO L125 PetriNetUnfolderBase]: For 851/877 co-relation queries the response was YES. [2024-11-20 17:41:44,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 502 events. 180/502 cut-off events. For 851/877 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2355 event pairs, 32 based on Foata normal form. 8/496 useless extension candidates. Maximal degree in co-relation 1240. Up to 233 conditions per place. [2024-11-20 17:41:44,189 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 41 selfloop transitions, 9 changer transitions 4/78 dead transitions. [2024-11-20 17:41:44,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 78 transitions, 471 flow [2024-11-20 17:41:44,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:41:44,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:41:44,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 163 transitions. [2024-11-20 17:41:44,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5821428571428572 [2024-11-20 17:41:44,190 INFO L175 Difference]: Start difference. First operand has 84 places, 70 transitions, 352 flow. Second operand 5 states and 163 transitions. [2024-11-20 17:41:44,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 78 transitions, 471 flow [2024-11-20 17:41:44,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 431 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-20 17:41:44,192 INFO L231 Difference]: Finished difference. Result has 81 places, 63 transitions, 290 flow [2024-11-20 17:41:44,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=290, PETRI_PLACES=81, PETRI_TRANSITIONS=63} [2024-11-20 17:41:44,193 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 23 predicate places. [2024-11-20 17:41:44,194 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 290 flow [2024-11-20 17:41:44,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-20 17:41:44,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:44,194 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:44,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 17:41:44,194 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:44,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:44,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2093668075, now seen corresponding path program 2 times [2024-11-20 17:41:44,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:44,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992714329] [2024-11-20 17:41:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:44,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:44,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:44,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:44,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992714329] [2024-11-20 17:41:44,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992714329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:44,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:44,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:41:44,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990263419] [2024-11-20 17:41:44,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:44,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:41:44,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:44,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:41:44,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:41:44,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-20 17:41:44,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 290 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-20 17:41:44,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:44,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-20 17:41:44,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:44,449 INFO L124 PetriNetUnfolderBase]: 157/453 cut-off events. [2024-11-20 17:41:44,449 INFO L125 PetriNetUnfolderBase]: For 774/794 co-relation queries the response was YES. [2024-11-20 17:41:44,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 453 events. 157/453 cut-off events. For 774/794 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2035 event pairs, 62 based on Foata normal form. 12/455 useless extension candidates. Maximal degree in co-relation 521. Up to 197 conditions per place. [2024-11-20 17:41:44,451 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 31 selfloop transitions, 5 changer transitions 19/79 dead transitions. [2024-11-20 17:41:44,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 79 transitions, 471 flow [2024-11-20 17:41:44,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:41:44,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:41:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 205 transitions. [2024-11-20 17:41:44,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5229591836734694 [2024-11-20 17:41:44,452 INFO L175 Difference]: Start difference. First operand has 81 places, 63 transitions, 290 flow. Second operand 7 states and 205 transitions. [2024-11-20 17:41:44,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 79 transitions, 471 flow [2024-11-20 17:41:44,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 449 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-20 17:41:44,454 INFO L231 Difference]: Finished difference. Result has 85 places, 56 transitions, 241 flow [2024-11-20 17:41:44,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=241, PETRI_PLACES=85, PETRI_TRANSITIONS=56} [2024-11-20 17:41:44,455 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 27 predicate places. [2024-11-20 17:41:44,455 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 56 transitions, 241 flow [2024-11-20 17:41:44,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-20 17:41:44,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:41:44,455 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:41:44,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 17:41:44,455 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 17:41:44,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:41:44,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1371415233, now seen corresponding path program 2 times [2024-11-20 17:41:44,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:41:44,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420528127] [2024-11-20 17:41:44,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:41:44,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:41:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:41:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:41:44,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:41:44,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420528127] [2024-11-20 17:41:44,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420528127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:41:44,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:41:44,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 17:41:44,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936149888] [2024-11-20 17:41:44,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:41:44,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:41:44,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:41:44,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:41:44,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:41:44,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 56 [2024-11-20 17:41:44,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 56 transitions, 241 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-20 17:41:44,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:41:44,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 56 [2024-11-20 17:41:44,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:41:44,676 INFO L124 PetriNetUnfolderBase]: 54/176 cut-off events. [2024-11-20 17:41:44,676 INFO L125 PetriNetUnfolderBase]: For 180/182 co-relation queries the response was YES. [2024-11-20 17:41:44,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 176 events. 54/176 cut-off events. For 180/182 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 516 event pairs, 29 based on Foata normal form. 8/181 useless extension candidates. Maximal degree in co-relation 450. Up to 83 conditions per place. [2024-11-20 17:41:44,677 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2024-11-20 17:41:44,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 51 transitions, 276 flow [2024-11-20 17:41:44,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:41:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:41:44,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2024-11-20 17:41:44,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4846938775510204 [2024-11-20 17:41:44,678 INFO L175 Difference]: Start difference. First operand has 85 places, 56 transitions, 241 flow. Second operand 7 states and 190 transitions. [2024-11-20 17:41:44,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 51 transitions, 276 flow [2024-11-20 17:41:44,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 238 flow, removed 2 selfloop flow, removed 14 redundant places. [2024-11-20 17:41:44,679 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2024-11-20 17:41:44,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2024-11-20 17:41:44,680 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2024-11-20 17:41:44,680 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2024-11-20 17:41:44,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-20 17:41:44,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-20 17:41:44,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-20 17:41:44,683 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-20 17:41:44,683 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-20 17:41:44,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 17:41:44,683 INFO L407 BasicCegarLoop]: Path program histogram: [8, 2, 2] [2024-11-20 17:41:44,685 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:41:44,685 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:41:44,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:41:44 BasicIcfg [2024-11-20 17:41:44,689 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:41:44,689 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:41:44,689 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:41:44,689 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:41:44,690 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:41:41" (3/4) ... [2024-11-20 17:41:44,691 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 17:41:44,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-20 17:41:44,694 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-20 17:41:44,697 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2024-11-20 17:41:44,697 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-20 17:41:44,698 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-20 17:41:44,698 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 17:41:44,758 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 17:41:44,758 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 17:41:44,758 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:41:44,759 INFO L158 Benchmark]: Toolchain (without parser) took 4511.12ms. Allocated memory was 186.6MB in the beginning and 264.2MB in the end (delta: 77.6MB). Free memory was 120.5MB in the beginning and 209.5MB in the end (delta: -89.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:41:44,759 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:41:44,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.05ms. Allocated memory is still 186.6MB. Free memory was 120.5MB in the beginning and 107.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 17:41:44,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.32ms. Allocated memory is still 186.6MB. Free memory was 107.2MB in the beginning and 105.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:41:44,759 INFO L158 Benchmark]: Boogie Preprocessor took 37.43ms. Allocated memory is still 186.6MB. Free memory was 105.2MB in the beginning and 103.2MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:41:44,760 INFO L158 Benchmark]: RCFGBuilder took 459.86ms. Allocated memory is still 186.6MB. Free memory was 103.0MB in the beginning and 143.9MB in the end (delta: -40.9MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-11-20 17:41:44,760 INFO L158 Benchmark]: TraceAbstraction took 3602.54ms. Allocated memory was 186.6MB in the beginning and 264.2MB in the end (delta: 77.6MB). Free memory was 143.5MB in the beginning and 213.7MB in the end (delta: -70.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 17:41:44,760 INFO L158 Benchmark]: Witness Printer took 69.18ms. Allocated memory is still 264.2MB. Free memory was 213.7MB in the beginning and 209.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:41:44,761 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.05ms. Allocated memory is still 186.6MB. Free memory was 120.5MB in the beginning and 107.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.32ms. Allocated memory is still 186.6MB. Free memory was 107.2MB in the beginning and 105.2MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.43ms. Allocated memory is still 186.6MB. Free memory was 105.2MB in the beginning and 103.2MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 459.86ms. Allocated memory is still 186.6MB. Free memory was 103.0MB in the beginning and 143.9MB in the end (delta: -40.9MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3602.54ms. Allocated memory was 186.6MB in the beginning and 264.2MB in the end (delta: 77.6MB). Free memory was 143.5MB in the beginning and 213.7MB in the end (delta: -70.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 69.18ms. Allocated memory is still 264.2MB. Free memory was 213.7MB in the beginning and 209.5MB 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: 77]: 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 5 procedures, 85 locations, 4 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: 3.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 480 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 369 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1835 IncrementalHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 76 mSDtfsCounter, 1835 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=398occurred in iteration=7, InterpolantAutomatonStates: 70, 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, 568 NumberOfCodeBlocks, 568 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 556 ConstructedInterpolants, 0 QuantifiedInterpolants, 1266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 17:41:44,777 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