./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-figure1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/popl20-figure1.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 facd7612076746f2d167aef7303c13ba7b66236eba7a99773acf1e3861338848 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:37:18,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:37:18,105 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:37:18,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:37:18,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:37:18,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:37:18,134 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:37:18,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:37:18,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:37:18,136 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:37:18,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:37:18,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:37:18,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:37:18,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:37:18,139 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:37:18,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:37:18,139 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:37:18,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:37:18,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:37:18,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:37:18,143 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:37:18,143 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:37:18,143 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:37:18,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:37:18,144 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:37:18,144 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:37:18,144 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:37:18,144 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:37:18,144 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:37:18,144 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:37:18,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:37:18,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:37:18,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:37:18,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:37:18,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:37:18,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:37:18,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:37:18,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:37:18,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:37:18,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:37:18,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:37:18,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:37:18,147 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> facd7612076746f2d167aef7303c13ba7b66236eba7a99773acf1e3861338848 [2024-11-17 03:37:18,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:37:18,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:37:18,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:37:18,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:37:18,346 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:37:18,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-figure1.wvr.c [2024-11-17 03:37:19,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:37:19,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:37:19,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-figure1.wvr.c [2024-11-17 03:37:19,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/774698664/24670e80817a4f11bd6237ae5726cb18/FLAGb9b6022b0 [2024-11-17 03:37:20,083 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/774698664/24670e80817a4f11bd6237ae5726cb18 [2024-11-17 03:37:20,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:37:20,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:37:20,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:37:20,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:37:20,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:37:20,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7107685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20, skipping insertion in model container [2024-11-17 03:37:20,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,106 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:37:20,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:37:20,281 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:37:20,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:37:20,311 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:37:20,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20 WrapperNode [2024-11-17 03:37:20,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:37:20,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:37:20,313 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:37:20,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:37:20,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,334 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2024-11-17 03:37:20,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:37:20,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:37:20,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:37:20,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:37:20,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,343 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,351 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]. [2024-11-17 03:37:20,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,353 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,354 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:37:20,357 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:37:20,357 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:37:20,357 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:37:20,359 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (1/1) ... [2024-11-17 03:37:20,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:37:20,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:20,388 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) [2024-11-17 03:37:20,390 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 [2024-11-17 03:37:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:37:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 03:37:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 03:37:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 03:37:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 03:37:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:37:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:37:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:37:20,448 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:37:20,535 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:37:20,537 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:37:20,675 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:37:20,675 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:37:20,755 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:37:20,755 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:37:20,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:37:20 BoogieIcfgContainer [2024-11-17 03:37:20,755 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:37:20,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:37:20,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:37:20,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:37:20,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:37:20" (1/3) ... [2024-11-17 03:37:20,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afa7b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:37:20, skipping insertion in model container [2024-11-17 03:37:20,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:37:20" (2/3) ... [2024-11-17 03:37:20,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2afa7b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:37:20, skipping insertion in model container [2024-11-17 03:37:20,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:37:20" (3/3) ... [2024-11-17 03:37:20,761 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure1.wvr.c [2024-11-17 03:37:20,773 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:37:20,774 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:37:20,774 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:37:20,816 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 03:37:20,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 74 flow [2024-11-17 03:37:20,864 INFO L124 PetriNetUnfolderBase]: 4/28 cut-off events. [2024-11-17 03:37:20,865 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 03:37:20,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 4/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-11-17 03:37:20,867 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 30 transitions, 74 flow [2024-11-17 03:37:20,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 66 flow [2024-11-17 03:37:20,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:37:20,885 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;@6416cb56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:37:20,886 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-17 03:37:20,893 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:37:20,893 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2024-11-17 03:37:20,893 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 03:37:20,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:20,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:20,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:20,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:20,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2144655474, now seen corresponding path program 1 times [2024-11-17 03:37:20,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:20,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503124844] [2024-11-17 03:37:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:20,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:21,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:21,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:21,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503124844] [2024-11-17 03:37:21,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503124844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:21,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:21,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:37:21,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676713892] [2024-11-17 03:37:21,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:21,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:37:21,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:21,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:37:21,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:37:21,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-17 03:37:21,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 66 flow. Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2024-11-17 03:37:21,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:21,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-17 03:37:21,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:21,128 INFO L124 PetriNetUnfolderBase]: 74/153 cut-off events. [2024-11-17 03:37:21,129 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-17 03:37:21,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 153 events. 74/153 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 558 event pairs, 53 based on Foata normal form. 22/166 useless extension candidates. Maximal degree in co-relation 262. Up to 131 conditions per place. [2024-11-17 03:37:21,132 INFO L140 encePairwiseOnDemand]: 27/30 looper letters, 17 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2024-11-17 03:37:21,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 92 flow [2024-11-17 03:37:21,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:37:21,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:37:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 38 transitions. [2024-11-17 03:37:21,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-17 03:37:21,143 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 66 flow. Second operand 2 states and 38 transitions. [2024-11-17 03:37:21,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 92 flow [2024-11-17 03:37:21,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 84 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:37:21,148 INFO L231 Difference]: Finished difference. Result has 25 places, 23 transitions, 50 flow [2024-11-17 03:37:21,150 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=50, PETRI_PLACES=25, PETRI_TRANSITIONS=23} [2024-11-17 03:37:21,153 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2024-11-17 03:37:21,153 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 23 transitions, 50 flow [2024-11-17 03:37:21,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 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) [2024-11-17 03:37:21,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:21,153 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:21,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:37:21,154 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:21,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash -322479106, now seen corresponding path program 1 times [2024-11-17 03:37:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:21,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687336163] [2024-11-17 03:37:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:21,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:21,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:21,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:21,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687336163] [2024-11-17 03:37:21,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687336163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:21,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:21,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:37:21,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93312154] [2024-11-17 03:37:21,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:21,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:37:21,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:21,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:37:21,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:37:21,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-17 03:37:21,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 23 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-17 03:37:21,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:21,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-17 03:37:21,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:21,340 INFO L124 PetriNetUnfolderBase]: 86/201 cut-off events. [2024-11-17 03:37:21,342 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 03:37:21,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 201 events. 86/201 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 807 event pairs, 32 based on Foata normal form. 8/192 useless extension candidates. Maximal degree in co-relation 366. Up to 108 conditions per place. [2024-11-17 03:37:21,344 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 21 selfloop transitions, 2 changer transitions 3/32 dead transitions. [2024-11-17 03:37:21,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 32 transitions, 123 flow [2024-11-17 03:37:21,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:37:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:37:21,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2024-11-17 03:37:21,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-17 03:37:21,346 INFO L175 Difference]: Start difference. First operand has 25 places, 23 transitions, 50 flow. Second operand 3 states and 55 transitions. [2024-11-17 03:37:21,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 32 transitions, 123 flow [2024-11-17 03:37:21,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 32 transitions, 123 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:37:21,347 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 64 flow [2024-11-17 03:37:21,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2024-11-17 03:37:21,349 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-11-17 03:37:21,349 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 64 flow [2024-11-17 03:37:21,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-17 03:37:21,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:21,349 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:21,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:37:21,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:21,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:21,350 INFO L85 PathProgramCache]: Analyzing trace with hash 452401224, now seen corresponding path program 1 times [2024-11-17 03:37:21,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:21,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603083146] [2024-11-17 03:37:21,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:21,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:21,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:21,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:21,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603083146] [2024-11-17 03:37:21,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603083146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:21,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:21,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:37:21,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788476203] [2024-11-17 03:37:21,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:21,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:37:21,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:21,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:37:21,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:37:21,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:21,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-11-17 03:37:21,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:21,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:21,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:21,622 INFO L124 PetriNetUnfolderBase]: 200/387 cut-off events. [2024-11-17 03:37:21,622 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-17 03:37:21,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 387 events. 200/387 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1684 event pairs, 91 based on Foata normal form. 4/366 useless extension candidates. Maximal degree in co-relation 810. Up to 249 conditions per place. [2024-11-17 03:37:21,627 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 38 selfloop transitions, 6 changer transitions 2/49 dead transitions. [2024-11-17 03:37:21,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 49 transitions, 215 flow [2024-11-17 03:37:21,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:37:21,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:37:21,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2024-11-17 03:37:21,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2024-11-17 03:37:21,628 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 64 flow. Second operand 5 states and 77 transitions. [2024-11-17 03:37:21,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 49 transitions, 215 flow [2024-11-17 03:37:21,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 49 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:37:21,630 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 105 flow [2024-11-17 03:37:21,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=105, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2024-11-17 03:37:21,632 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2024-11-17 03:37:21,632 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 105 flow [2024-11-17 03:37:21,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-11-17 03:37:21,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:21,633 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:21,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:37:21,633 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:21,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:21,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1512955576, now seen corresponding path program 2 times [2024-11-17 03:37:21,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:21,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830307293] [2024-11-17 03:37:21,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:21,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:21,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:21,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:21,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830307293] [2024-11-17 03:37:21,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830307293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:21,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539741247] [2024-11-17 03:37:21,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:37:21,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:21,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:21,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:21,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 03:37:21,772 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:37:21,772 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:21,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 03:37:21,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:21,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:21,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539741247] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:21,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:21,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-17 03:37:21,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139550039] [2024-11-17 03:37:21,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:21,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 03:37:21,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:21,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 03:37:21,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-17 03:37:21,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:21,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 105 flow. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:21,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:21,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:21,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:22,125 INFO L124 PetriNetUnfolderBase]: 233/441 cut-off events. [2024-11-17 03:37:22,126 INFO L125 PetriNetUnfolderBase]: For 197/197 co-relation queries the response was YES. [2024-11-17 03:37:22,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 441 events. 233/441 cut-off events. For 197/197 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1908 event pairs, 3 based on Foata normal form. 11/451 useless extension candidates. Maximal degree in co-relation 1123. Up to 106 conditions per place. [2024-11-17 03:37:22,131 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 63 selfloop transitions, 20 changer transitions 1/87 dead transitions. [2024-11-17 03:37:22,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 87 transitions, 448 flow [2024-11-17 03:37:22,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 03:37:22,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-17 03:37:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 158 transitions. [2024-11-17 03:37:22,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4388888888888889 [2024-11-17 03:37:22,135 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 105 flow. Second operand 12 states and 158 transitions. [2024-11-17 03:37:22,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 87 transitions, 448 flow [2024-11-17 03:37:22,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 87 transitions, 446 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-17 03:37:22,139 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 230 flow [2024-11-17 03:37:22,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=230, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2024-11-17 03:37:22,140 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 20 predicate places. [2024-11-17 03:37:22,140 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 230 flow [2024-11-17 03:37:22,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:22,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:22,140 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:22,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 03:37:22,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:22,342 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:22,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:22,342 INFO L85 PathProgramCache]: Analyzing trace with hash 810315776, now seen corresponding path program 3 times [2024-11-17 03:37:22,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:22,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407918456] [2024-11-17 03:37:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:22,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:22,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:22,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:22,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407918456] [2024-11-17 03:37:22,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407918456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:22,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:22,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:37:22,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28515501] [2024-11-17 03:37:22,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:22,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:37:22,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:22,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:37:22,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:37:22,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 30 [2024-11-17 03:37:22,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 230 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-17 03:37:22,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:22,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 30 [2024-11-17 03:37:22,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:22,534 INFO L124 PetriNetUnfolderBase]: 272/529 cut-off events. [2024-11-17 03:37:22,535 INFO L125 PetriNetUnfolderBase]: For 1044/1048 co-relation queries the response was YES. [2024-11-17 03:37:22,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1696 conditions, 529 events. 272/529 cut-off events. For 1044/1048 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2378 event pairs, 89 based on Foata normal form. 8/534 useless extension candidates. Maximal degree in co-relation 1682. Up to 219 conditions per place. [2024-11-17 03:37:22,538 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 66 selfloop transitions, 12 changer transitions 5/87 dead transitions. [2024-11-17 03:37:22,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 87 transitions, 636 flow [2024-11-17 03:37:22,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:37:22,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:37:22,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 101 transitions. [2024-11-17 03:37:22,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48095238095238096 [2024-11-17 03:37:22,540 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 230 flow. Second operand 7 states and 101 transitions. [2024-11-17 03:37:22,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 87 transitions, 636 flow [2024-11-17 03:37:22,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 87 transitions, 585 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-17 03:37:22,547 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 286 flow [2024-11-17 03:37:22,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=286, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2024-11-17 03:37:22,550 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 27 predicate places. [2024-11-17 03:37:22,550 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 286 flow [2024-11-17 03:37:22,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2024-11-17 03:37:22,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:22,550 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:22,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:37:22,551 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:22,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:22,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1779666408, now seen corresponding path program 4 times [2024-11-17 03:37:22,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:22,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031171643] [2024-11-17 03:37:22,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:22,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:22,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:22,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:22,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031171643] [2024-11-17 03:37:22,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031171643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:22,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221217690] [2024-11-17 03:37:22,622 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-17 03:37:22,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:22,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:22,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:22,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 03:37:22,666 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-17 03:37:22,666 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:22,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 03:37:22,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:22,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:22,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221217690] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:22,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:22,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2024-11-17 03:37:22,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355345413] [2024-11-17 03:37:22,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:22,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 03:37:22,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:22,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 03:37:22,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-17 03:37:22,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:22,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 286 flow. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-11-17 03:37:22,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:22,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:22,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:23,064 INFO L124 PetriNetUnfolderBase]: 508/936 cut-off events. [2024-11-17 03:37:23,064 INFO L125 PetriNetUnfolderBase]: For 2197/2201 co-relation queries the response was YES. [2024-11-17 03:37:23,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3173 conditions, 936 events. 508/936 cut-off events. For 2197/2201 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4686 event pairs, 39 based on Foata normal form. 15/951 useless extension candidates. Maximal degree in co-relation 3154. Up to 208 conditions per place. [2024-11-17 03:37:23,071 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 84 selfloop transitions, 51 changer transitions 2/140 dead transitions. [2024-11-17 03:37:23,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 140 transitions, 1032 flow [2024-11-17 03:37:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-17 03:37:23,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-17 03:37:23,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 215 transitions. [2024-11-17 03:37:23,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4479166666666667 [2024-11-17 03:37:23,073 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 286 flow. Second operand 16 states and 215 transitions. [2024-11-17 03:37:23,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 140 transitions, 1032 flow [2024-11-17 03:37:23,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 140 transitions, 987 flow, removed 13 selfloop flow, removed 2 redundant places. [2024-11-17 03:37:23,082 INFO L231 Difference]: Finished difference. Result has 78 places, 82 transitions, 734 flow [2024-11-17 03:37:23,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=734, PETRI_PLACES=78, PETRI_TRANSITIONS=82} [2024-11-17 03:37:23,084 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 48 predicate places. [2024-11-17 03:37:23,084 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 82 transitions, 734 flow [2024-11-17 03:37:23,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 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) [2024-11-17 03:37:23,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:23,084 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:23,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 03:37:23,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-17 03:37:23,288 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:23,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:23,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1452439578, now seen corresponding path program 5 times [2024-11-17 03:37:23,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:23,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546344551] [2024-11-17 03:37:23,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:23,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:23,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:23,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546344551] [2024-11-17 03:37:23,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546344551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:23,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728098849] [2024-11-17 03:37:23,360 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 03:37:23,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:23,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:23,362 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:23,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 03:37:23,399 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:37:23,399 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:23,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 03:37:23,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:23,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:23,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728098849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:23,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:23,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2024-11-17 03:37:23,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770195575] [2024-11-17 03:37:23,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:23,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 03:37:23,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:23,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 03:37:23,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-17 03:37:23,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:23,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 82 transitions, 734 flow. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 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) [2024-11-17 03:37:23,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:23,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:23,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:23,664 INFO L124 PetriNetUnfolderBase]: 511/944 cut-off events. [2024-11-17 03:37:23,665 INFO L125 PetriNetUnfolderBase]: For 4171/4175 co-relation queries the response was YES. [2024-11-17 03:37:23,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3792 conditions, 944 events. 511/944 cut-off events. For 4171/4175 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4721 event pairs, 100 based on Foata normal form. 15/957 useless extension candidates. Maximal degree in co-relation 3765. Up to 314 conditions per place. [2024-11-17 03:37:23,670 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 71 selfloop transitions, 60 changer transitions 2/136 dead transitions. [2024-11-17 03:37:23,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 136 transitions, 1346 flow [2024-11-17 03:37:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 03:37:23,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 03:37:23,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 132 transitions. [2024-11-17 03:37:23,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2024-11-17 03:37:23,671 INFO L175 Difference]: Start difference. First operand has 78 places, 82 transitions, 734 flow. Second operand 9 states and 132 transitions. [2024-11-17 03:37:23,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 136 transitions, 1346 flow [2024-11-17 03:37:23,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 136 transitions, 1284 flow, removed 24 selfloop flow, removed 2 redundant places. [2024-11-17 03:37:23,682 INFO L231 Difference]: Finished difference. Result has 91 places, 102 transitions, 1138 flow [2024-11-17 03:37:23,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1138, PETRI_PLACES=91, PETRI_TRANSITIONS=102} [2024-11-17 03:37:23,683 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 61 predicate places. [2024-11-17 03:37:23,683 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 102 transitions, 1138 flow [2024-11-17 03:37:23,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 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) [2024-11-17 03:37:23,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:23,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:23,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 03:37:23,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:23,884 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:23,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:23,884 INFO L85 PathProgramCache]: Analyzing trace with hash 533765356, now seen corresponding path program 6 times [2024-11-17 03:37:23,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:23,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24663967] [2024-11-17 03:37:23,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:23,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:23,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:23,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:23,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24663967] [2024-11-17 03:37:23,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24663967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:23,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:23,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:37:23,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899932255] [2024-11-17 03:37:23,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:23,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:37:23,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:23,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:37:23,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:37:23,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:23,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 102 transitions, 1138 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-11-17 03:37:23,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:23,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:23,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:24,059 INFO L124 PetriNetUnfolderBase]: 487/898 cut-off events. [2024-11-17 03:37:24,059 INFO L125 PetriNetUnfolderBase]: For 5599/5603 co-relation queries the response was YES. [2024-11-17 03:37:24,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4085 conditions, 898 events. 487/898 cut-off events. For 5599/5603 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4466 event pairs, 186 based on Foata normal form. 4/900 useless extension candidates. Maximal degree in co-relation 4053. Up to 705 conditions per place. [2024-11-17 03:37:24,064 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 90 selfloop transitions, 14 changer transitions 15/122 dead transitions. [2024-11-17 03:37:24,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 122 transitions, 1514 flow [2024-11-17 03:37:24,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:37:24,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:37:24,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 91 transitions. [2024-11-17 03:37:24,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5055555555555555 [2024-11-17 03:37:24,066 INFO L175 Difference]: Start difference. First operand has 91 places, 102 transitions, 1138 flow. Second operand 6 states and 91 transitions. [2024-11-17 03:37:24,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 122 transitions, 1514 flow [2024-11-17 03:37:24,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 122 transitions, 1465 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-11-17 03:37:24,077 INFO L231 Difference]: Finished difference. Result has 98 places, 98 transitions, 1093 flow [2024-11-17 03:37:24,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1093, PETRI_PLACES=98, PETRI_TRANSITIONS=98} [2024-11-17 03:37:24,078 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 68 predicate places. [2024-11-17 03:37:24,078 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 98 transitions, 1093 flow [2024-11-17 03:37:24,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-11-17 03:37:24,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:24,079 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:24,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:37:24,079 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:24,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:24,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1831107804, now seen corresponding path program 7 times [2024-11-17 03:37:24,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:24,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598420633] [2024-11-17 03:37:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:24,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:24,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:24,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598420633] [2024-11-17 03:37:24,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598420633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:24,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:37:24,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:37:24,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521319057] [2024-11-17 03:37:24,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:24,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:37:24,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:24,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:37:24,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:37:24,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:24,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 98 transitions, 1093 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-11-17 03:37:24,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:24,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:24,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:24,237 INFO L124 PetriNetUnfolderBase]: 432/794 cut-off events. [2024-11-17 03:37:24,237 INFO L125 PetriNetUnfolderBase]: For 4522/4522 co-relation queries the response was YES. [2024-11-17 03:37:24,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3606 conditions, 794 events. 432/794 cut-off events. For 4522/4522 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3731 event pairs, 141 based on Foata normal form. 4/797 useless extension candidates. Maximal degree in co-relation 3571. Up to 419 conditions per place. [2024-11-17 03:37:24,242 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 75 selfloop transitions, 26 changer transitions 5/109 dead transitions. [2024-11-17 03:37:24,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 109 transitions, 1347 flow [2024-11-17 03:37:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:37:24,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:37:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 81 transitions. [2024-11-17 03:37:24,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-11-17 03:37:24,243 INFO L175 Difference]: Start difference. First operand has 98 places, 98 transitions, 1093 flow. Second operand 6 states and 81 transitions. [2024-11-17 03:37:24,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 109 transitions, 1347 flow [2024-11-17 03:37:24,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 109 transitions, 1276 flow, removed 16 selfloop flow, removed 7 redundant places. [2024-11-17 03:37:24,256 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 1018 flow [2024-11-17 03:37:24,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1018, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2024-11-17 03:37:24,256 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 66 predicate places. [2024-11-17 03:37:24,257 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 1018 flow [2024-11-17 03:37:24,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2024-11-17 03:37:24,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:24,257 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:24,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:37:24,257 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:24,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:24,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1060654558, now seen corresponding path program 1 times [2024-11-17 03:37:24,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:24,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526212654] [2024-11-17 03:37:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:24,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:24,336 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 03:37:24,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:24,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526212654] [2024-11-17 03:37:24,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526212654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:24,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65507115] [2024-11-17 03:37:24,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:24,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:24,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:24,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:24,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 03:37:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:24,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 03:37:24,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:24,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 03:37:24,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65507115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:37:24,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 03:37:24,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 5 [2024-11-17 03:37:24,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290868576] [2024-11-17 03:37:24,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:37:24,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:37:24,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:24,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:37:24,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:37:24,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-17 03:37:24,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 1018 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:24,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:24,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-17 03:37:24,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:24,549 INFO L124 PetriNetUnfolderBase]: 594/1199 cut-off events. [2024-11-17 03:37:24,550 INFO L125 PetriNetUnfolderBase]: For 7917/7947 co-relation queries the response was YES. [2024-11-17 03:37:24,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5407 conditions, 1199 events. 594/1199 cut-off events. For 7917/7947 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6731 event pairs, 81 based on Foata normal form. 26/1201 useless extension candidates. Maximal degree in co-relation 5374. Up to 479 conditions per place. [2024-11-17 03:37:24,556 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 133 selfloop transitions, 5 changer transitions 30/182 dead transitions. [2024-11-17 03:37:24,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 182 transitions, 2374 flow [2024-11-17 03:37:24,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:37:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:37:24,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2024-11-17 03:37:24,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-17 03:37:24,557 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 1018 flow. Second operand 4 states and 80 transitions. [2024-11-17 03:37:24,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 182 transitions, 2374 flow [2024-11-17 03:37:24,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 182 transitions, 2085 flow, removed 7 selfloop flow, removed 11 redundant places. [2024-11-17 03:37:24,572 INFO L231 Difference]: Finished difference. Result has 86 places, 93 transitions, 893 flow [2024-11-17 03:37:24,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=893, PETRI_PLACES=86, PETRI_TRANSITIONS=93} [2024-11-17 03:37:24,573 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 56 predicate places. [2024-11-17 03:37:24,573 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 93 transitions, 893 flow [2024-11-17 03:37:24,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:24,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:24,574 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:24,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-17 03:37:24,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:24,774 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:24,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:24,775 INFO L85 PathProgramCache]: Analyzing trace with hash 226655028, now seen corresponding path program 2 times [2024-11-17 03:37:24,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:24,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959534219] [2024-11-17 03:37:24,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:24,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:24,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:24,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959534219] [2024-11-17 03:37:24,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959534219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:24,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983710606] [2024-11-17 03:37:24,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:37:24,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:24,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:24,841 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:24,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 03:37:24,881 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:37:24,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:24,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:24,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:24,944 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:24,991 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:24,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983710606] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:24,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:24,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-17 03:37:24,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264210784] [2024-11-17 03:37:24,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:24,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 03:37:24,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:24,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 03:37:24,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-17 03:37:25,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:25,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 93 transitions, 893 flow. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:25,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:25,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:25,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:25,579 INFO L124 PetriNetUnfolderBase]: 1550/2760 cut-off events. [2024-11-17 03:37:25,580 INFO L125 PetriNetUnfolderBase]: For 12041/12041 co-relation queries the response was YES. [2024-11-17 03:37:25,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11732 conditions, 2760 events. 1550/2760 cut-off events. For 12041/12041 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 15702 event pairs, 117 based on Foata normal form. 32/2792 useless extension candidates. Maximal degree in co-relation 11704. Up to 499 conditions per place. [2024-11-17 03:37:25,593 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 185 selfloop transitions, 114 changer transitions 15/317 dead transitions. [2024-11-17 03:37:25,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 317 transitions, 3123 flow [2024-11-17 03:37:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-17 03:37:25,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-17 03:37:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 338 transitions. [2024-11-17 03:37:25,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46944444444444444 [2024-11-17 03:37:25,594 INFO L175 Difference]: Start difference. First operand has 86 places, 93 transitions, 893 flow. Second operand 24 states and 338 transitions. [2024-11-17 03:37:25,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 317 transitions, 3123 flow [2024-11-17 03:37:25,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 317 transitions, 3123 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:37:25,617 INFO L231 Difference]: Finished difference. Result has 123 places, 172 transitions, 2056 flow [2024-11-17 03:37:25,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2056, PETRI_PLACES=123, PETRI_TRANSITIONS=172} [2024-11-17 03:37:25,617 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 93 predicate places. [2024-11-17 03:37:25,617 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 172 transitions, 2056 flow [2024-11-17 03:37:25,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 13 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:25,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:25,618 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:25,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-17 03:37:25,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-17 03:37:25,819 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:25,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1440991202, now seen corresponding path program 3 times [2024-11-17 03:37:25,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:25,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090505624] [2024-11-17 03:37:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:25,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:25,875 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:25,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:25,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090505624] [2024-11-17 03:37:25,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090505624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:25,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816905063] [2024-11-17 03:37:25,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 03:37:25,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:25,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:25,878 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:25,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 03:37:25,915 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-17 03:37:25,916 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:25,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:25,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:25,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:26,012 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:26,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816905063] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:26,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:26,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-17 03:37:26,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414895689] [2024-11-17 03:37:26,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:26,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 03:37:26,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:26,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 03:37:26,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-17 03:37:26,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:26,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 172 transitions, 2056 flow. Second operand has 15 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 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) [2024-11-17 03:37:26,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:26,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:26,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:26,850 INFO L124 PetriNetUnfolderBase]: 2254/4012 cut-off events. [2024-11-17 03:37:26,850 INFO L125 PetriNetUnfolderBase]: For 41498/41498 co-relation queries the response was YES. [2024-11-17 03:37:26,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22759 conditions, 4012 events. 2254/4012 cut-off events. For 41498/41498 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 24403 event pairs, 171 based on Foata normal form. 36/4048 useless extension candidates. Maximal degree in co-relation 22716. Up to 738 conditions per place. [2024-11-17 03:37:26,877 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 189 selfloop transitions, 189 changer transitions 10/391 dead transitions. [2024-11-17 03:37:26,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 391 transitions, 5004 flow [2024-11-17 03:37:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-17 03:37:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-17 03:37:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 365 transitions. [2024-11-17 03:37:26,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2024-11-17 03:37:26,879 INFO L175 Difference]: Start difference. First operand has 123 places, 172 transitions, 2056 flow. Second operand 28 states and 365 transitions. [2024-11-17 03:37:26,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 391 transitions, 5004 flow [2024-11-17 03:37:26,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 391 transitions, 4652 flow, removed 130 selfloop flow, removed 5 redundant places. [2024-11-17 03:37:26,966 INFO L231 Difference]: Finished difference. Result has 161 places, 263 transitions, 3584 flow [2024-11-17 03:37:26,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1852, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=3584, PETRI_PLACES=161, PETRI_TRANSITIONS=263} [2024-11-17 03:37:26,967 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 131 predicate places. [2024-11-17 03:37:26,967 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 263 transitions, 3584 flow [2024-11-17 03:37:26,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.733333333333333) internal successors, (131), 15 states have internal predecessors, (131), 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) [2024-11-17 03:37:26,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:26,968 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:27,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 03:37:27,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:27,168 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:27,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1266445368, now seen corresponding path program 4 times [2024-11-17 03:37:27,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:27,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296665549] [2024-11-17 03:37:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:27,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:27,224 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:27,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:27,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296665549] [2024-11-17 03:37:27,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296665549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:27,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133200147] [2024-11-17 03:37:27,225 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-17 03:37:27,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:27,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:27,226 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:27,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 03:37:27,265 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-17 03:37:27,265 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:27,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:27,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:27,314 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:27,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133200147] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:27,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:27,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-17 03:37:27,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968697139] [2024-11-17 03:37:27,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:27,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 03:37:27,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:27,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 03:37:27,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-17 03:37:27,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:27,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 263 transitions, 3584 flow. Second operand has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 11 states have internal predecessors, (104), 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) [2024-11-17 03:37:27,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:27,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:27,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:28,125 INFO L124 PetriNetUnfolderBase]: 2578/4551 cut-off events. [2024-11-17 03:37:28,125 INFO L125 PetriNetUnfolderBase]: For 85737/85737 co-relation queries the response was YES. [2024-11-17 03:37:28,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30221 conditions, 4551 events. 2578/4551 cut-off events. For 85737/85737 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 28422 event pairs, 208 based on Foata normal form. 56/4607 useless extension candidates. Maximal degree in co-relation 30164. Up to 1530 conditions per place. [2024-11-17 03:37:28,162 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 199 selfloop transitions, 171 changer transitions 76/449 dead transitions. [2024-11-17 03:37:28,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 449 transitions, 6765 flow [2024-11-17 03:37:28,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 03:37:28,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-17 03:37:28,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 200 transitions. [2024-11-17 03:37:28,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-17 03:37:28,163 INFO L175 Difference]: Start difference. First operand has 161 places, 263 transitions, 3584 flow. Second operand 15 states and 200 transitions. [2024-11-17 03:37:28,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 449 transitions, 6765 flow [2024-11-17 03:37:28,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 449 transitions, 6214 flow, removed 238 selfloop flow, removed 3 redundant places. [2024-11-17 03:37:28,416 INFO L231 Difference]: Finished difference. Result has 179 places, 301 transitions, 4413 flow [2024-11-17 03:37:28,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=3190, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4413, PETRI_PLACES=179, PETRI_TRANSITIONS=301} [2024-11-17 03:37:28,417 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 149 predicate places. [2024-11-17 03:37:28,417 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 301 transitions, 4413 flow [2024-11-17 03:37:28,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.454545454545455) internal successors, (104), 11 states have internal predecessors, (104), 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) [2024-11-17 03:37:28,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:28,417 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:28,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 03:37:28,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:28,618 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:28,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:28,619 INFO L85 PathProgramCache]: Analyzing trace with hash 742753800, now seen corresponding path program 5 times [2024-11-17 03:37:28,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:28,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592883150] [2024-11-17 03:37:28,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:28,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:28,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:28,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592883150] [2024-11-17 03:37:28,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592883150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:28,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825496873] [2024-11-17 03:37:28,683 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 03:37:28,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:28,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:28,684 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:28,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 03:37:28,721 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-17 03:37:28,721 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:28,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:28,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:28,766 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:28,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825496873] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:28,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:28,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-17 03:37:28,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715372138] [2024-11-17 03:37:28,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:28,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 03:37:28,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:28,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 03:37:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-17 03:37:28,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:28,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 301 transitions, 4413 flow. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 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) [2024-11-17 03:37:28,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:28,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:28,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:29,819 INFO L124 PetriNetUnfolderBase]: 2934/5211 cut-off events. [2024-11-17 03:37:29,820 INFO L125 PetriNetUnfolderBase]: For 128051/128051 co-relation queries the response was YES. [2024-11-17 03:37:29,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36566 conditions, 5211 events. 2934/5211 cut-off events. For 128051/128051 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 33651 event pairs, 142 based on Foata normal form. 116/5323 useless extension candidates. Maximal degree in co-relation 36503. Up to 1037 conditions per place. [2024-11-17 03:37:29,866 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 231 selfloop transitions, 268 changer transitions 11/513 dead transitions. [2024-11-17 03:37:29,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 513 transitions, 8302 flow [2024-11-17 03:37:29,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-17 03:37:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-17 03:37:29,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 359 transitions. [2024-11-17 03:37:29,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46025641025641023 [2024-11-17 03:37:29,868 INFO L175 Difference]: Start difference. First operand has 179 places, 301 transitions, 4413 flow. Second operand 26 states and 359 transitions. [2024-11-17 03:37:29,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 513 transitions, 8302 flow [2024-11-17 03:37:30,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 513 transitions, 8155 flow, removed 66 selfloop flow, removed 2 redundant places. [2024-11-17 03:37:30,151 INFO L231 Difference]: Finished difference. Result has 216 places, 372 transitions, 6904 flow [2024-11-17 03:37:30,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=4175, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=6904, PETRI_PLACES=216, PETRI_TRANSITIONS=372} [2024-11-17 03:37:30,152 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 186 predicate places. [2024-11-17 03:37:30,152 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 372 transitions, 6904 flow [2024-11-17 03:37:30,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 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) [2024-11-17 03:37:30,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:30,152 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:30,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-17 03:37:30,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-17 03:37:30,353 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:30,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1451003308, now seen corresponding path program 6 times [2024-11-17 03:37:30,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:30,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289245956] [2024-11-17 03:37:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:30,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:30,399 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:30,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:30,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289245956] [2024-11-17 03:37:30,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289245956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:30,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907977012] [2024-11-17 03:37:30,400 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-17 03:37:30,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:30,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:30,401 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:30,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 03:37:30,438 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-17 03:37:30,438 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:30,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:30,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:30,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:30,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907977012] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:30,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:30,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-17 03:37:30,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831095736] [2024-11-17 03:37:30,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:30,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 03:37:30,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:30,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 03:37:30,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-17 03:37:30,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:30,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 372 transitions, 6904 flow. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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) [2024-11-17 03:37:30,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:30,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:30,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:31,799 INFO L124 PetriNetUnfolderBase]: 3690/6575 cut-off events. [2024-11-17 03:37:31,799 INFO L125 PetriNetUnfolderBase]: For 234745/234745 co-relation queries the response was YES. [2024-11-17 03:37:31,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53356 conditions, 6575 events. 3690/6575 cut-off events. For 234745/234745 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 44497 event pairs, 150 based on Foata normal form. 58/6631 useless extension candidates. Maximal degree in co-relation 53278. Up to 1953 conditions per place. [2024-11-17 03:37:31,868 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 247 selfloop transitions, 331 changer transitions 3/584 dead transitions. [2024-11-17 03:37:31,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 584 transitions, 11757 flow [2024-11-17 03:37:31,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 03:37:31,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-17 03:37:31,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 228 transitions. [2024-11-17 03:37:31,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4470588235294118 [2024-11-17 03:37:31,873 INFO L175 Difference]: Start difference. First operand has 216 places, 372 transitions, 6904 flow. Second operand 17 states and 228 transitions. [2024-11-17 03:37:31,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 584 transitions, 11757 flow [2024-11-17 03:37:32,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 584 transitions, 11119 flow, removed 233 selfloop flow, removed 9 redundant places. [2024-11-17 03:37:32,609 INFO L231 Difference]: Finished difference. Result has 228 places, 477 transitions, 10011 flow [2024-11-17 03:37:32,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=6442, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10011, PETRI_PLACES=228, PETRI_TRANSITIONS=477} [2024-11-17 03:37:32,610 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 198 predicate places. [2024-11-17 03:37:32,610 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 477 transitions, 10011 flow [2024-11-17 03:37:32,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 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) [2024-11-17 03:37:32,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:32,610 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:32,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-17 03:37:32,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-17 03:37:32,811 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:32,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:32,811 INFO L85 PathProgramCache]: Analyzing trace with hash -601909444, now seen corresponding path program 7 times [2024-11-17 03:37:32,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:32,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51589969] [2024-11-17 03:37:32,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:32,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:32,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:32,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51589969] [2024-11-17 03:37:32,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51589969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:32,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867716452] [2024-11-17 03:37:32,869 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-17 03:37:32,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:32,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:32,870 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:32,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-17 03:37:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:32,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:32,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:32,957 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:32,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:32,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867716452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:32,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-17 03:37:32,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982628350] [2024-11-17 03:37:32,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:32,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 03:37:32,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:32,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 03:37:32,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 03:37:33,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:33,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 477 transitions, 10011 flow. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 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) [2024-11-17 03:37:33,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:33,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:33,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:34,341 INFO L124 PetriNetUnfolderBase]: 3692/6637 cut-off events. [2024-11-17 03:37:34,341 INFO L125 PetriNetUnfolderBase]: For 240448/240448 co-relation queries the response was YES. [2024-11-17 03:37:34,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55015 conditions, 6637 events. 3692/6637 cut-off events. For 240448/240448 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 45481 event pairs, 317 based on Foata normal form. 16/6653 useless extension candidates. Maximal degree in co-relation 54933. Up to 1152 conditions per place. [2024-11-17 03:37:34,391 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 259 selfloop transitions, 325 changer transitions 14/601 dead transitions. [2024-11-17 03:37:34,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 601 transitions, 12884 flow [2024-11-17 03:37:34,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-17 03:37:34,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-17 03:37:34,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 276 transitions. [2024-11-17 03:37:34,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46 [2024-11-17 03:37:34,392 INFO L175 Difference]: Start difference. First operand has 228 places, 477 transitions, 10011 flow. Second operand 20 states and 276 transitions. [2024-11-17 03:37:34,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 601 transitions, 12884 flow [2024-11-17 03:37:35,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 601 transitions, 12719 flow, removed 49 selfloop flow, removed 6 redundant places. [2024-11-17 03:37:35,442 INFO L231 Difference]: Finished difference. Result has 245 places, 479 transitions, 10908 flow [2024-11-17 03:37:35,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=9747, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=309, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10908, PETRI_PLACES=245, PETRI_TRANSITIONS=479} [2024-11-17 03:37:35,443 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 215 predicate places. [2024-11-17 03:37:35,443 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 479 transitions, 10908 flow [2024-11-17 03:37:35,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 12 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) [2024-11-17 03:37:35,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:35,444 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:35,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-17 03:37:35,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-17 03:37:35,644 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:35,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1959816960, now seen corresponding path program 8 times [2024-11-17 03:37:35,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:35,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98561743] [2024-11-17 03:37:35,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:35,710 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:35,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:35,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98561743] [2024-11-17 03:37:35,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98561743] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:35,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259746597] [2024-11-17 03:37:35,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:37:35,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:35,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:35,713 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:35,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-17 03:37:35,749 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:37:35,749 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:35,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:35,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:35,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:35,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259746597] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:35,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:35,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-17 03:37:35,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459207445] [2024-11-17 03:37:35,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:35,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 03:37:35,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:35,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 03:37:35,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-17 03:37:35,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:35,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 479 transitions, 10908 flow. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 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) [2024-11-17 03:37:35,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:35,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:35,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:37,332 INFO L124 PetriNetUnfolderBase]: 4224/7509 cut-off events. [2024-11-17 03:37:37,332 INFO L125 PetriNetUnfolderBase]: For 312944/312944 co-relation queries the response was YES. [2024-11-17 03:37:37,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66634 conditions, 7509 events. 4224/7509 cut-off events. For 312944/312944 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 51905 event pairs, 309 based on Foata normal form. 66/7567 useless extension candidates. Maximal degree in co-relation 66546. Up to 1335 conditions per place. [2024-11-17 03:37:37,501 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 246 selfloop transitions, 454 changer transitions 18/721 dead transitions. [2024-11-17 03:37:37,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 721 transitions, 16877 flow [2024-11-17 03:37:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-17 03:37:37,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-17 03:37:37,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 343 transitions. [2024-11-17 03:37:37,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43974358974358974 [2024-11-17 03:37:37,504 INFO L175 Difference]: Start difference. First operand has 245 places, 479 transitions, 10908 flow. Second operand 26 states and 343 transitions. [2024-11-17 03:37:37,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 721 transitions, 16877 flow [2024-11-17 03:37:38,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 721 transitions, 16403 flow, removed 58 selfloop flow, removed 13 redundant places. [2024-11-17 03:37:38,742 INFO L231 Difference]: Finished difference. Result has 261 places, 587 transitions, 15095 flow [2024-11-17 03:37:38,742 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=10444, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=343, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=15095, PETRI_PLACES=261, PETRI_TRANSITIONS=587} [2024-11-17 03:37:38,743 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 231 predicate places. [2024-11-17 03:37:38,743 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 587 transitions, 15095 flow [2024-11-17 03:37:38,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 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) [2024-11-17 03:37:38,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:38,743 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:38,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-17 03:37:38,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-17 03:37:38,944 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:38,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:38,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1212221898, now seen corresponding path program 9 times [2024-11-17 03:37:38,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:38,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323504767] [2024-11-17 03:37:38,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:39,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:39,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323504767] [2024-11-17 03:37:39,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323504767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:39,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295134318] [2024-11-17 03:37:39,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 03:37:39,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:39,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:39,005 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:39,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-17 03:37:39,044 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-17 03:37:39,044 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:39,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:39,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:39,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:39,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295134318] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:39,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:39,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-17 03:37:39,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138018156] [2024-11-17 03:37:39,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:39,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 03:37:39,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:39,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 03:37:39,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-17 03:37:39,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:39,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 587 transitions, 15095 flow. Second operand has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 15 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:39,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:39,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:39,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:41,250 INFO L124 PetriNetUnfolderBase]: 4832/8630 cut-off events. [2024-11-17 03:37:41,250 INFO L125 PetriNetUnfolderBase]: For 413401/413401 co-relation queries the response was YES. [2024-11-17 03:37:41,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81301 conditions, 8630 events. 4832/8630 cut-off events. For 413401/413401 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 61290 event pairs, 203 based on Foata normal form. 42/8667 useless extension candidates. Maximal degree in co-relation 81209. Up to 1728 conditions per place. [2024-11-17 03:37:41,322 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 321 selfloop transitions, 560 changer transitions 12/896 dead transitions. [2024-11-17 03:37:41,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 896 transitions, 23530 flow [2024-11-17 03:37:41,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-17 03:37:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-17 03:37:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 389 transitions. [2024-11-17 03:37:41,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43222222222222223 [2024-11-17 03:37:41,323 INFO L175 Difference]: Start difference. First operand has 261 places, 587 transitions, 15095 flow. Second operand 30 states and 389 transitions. [2024-11-17 03:37:41,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 896 transitions, 23530 flow [2024-11-17 03:37:43,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 896 transitions, 22718 flow, removed 196 selfloop flow, removed 11 redundant places. [2024-11-17 03:37:43,328 INFO L231 Difference]: Finished difference. Result has 286 places, 718 transitions, 20413 flow [2024-11-17 03:37:43,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=14439, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=425, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=20413, PETRI_PLACES=286, PETRI_TRANSITIONS=718} [2024-11-17 03:37:43,328 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 256 predicate places. [2024-11-17 03:37:43,328 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 718 transitions, 20413 flow [2024-11-17 03:37:43,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 15 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:43,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:43,329 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:43,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-17 03:37:43,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-17 03:37:43,529 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:43,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:43,529 INFO L85 PathProgramCache]: Analyzing trace with hash 257785900, now seen corresponding path program 10 times [2024-11-17 03:37:43,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:43,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665842224] [2024-11-17 03:37:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:43,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:43,575 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:43,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:43,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665842224] [2024-11-17 03:37:43,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665842224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:43,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611856722] [2024-11-17 03:37:43,576 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-17 03:37:43,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:43,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:43,577 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:43,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-17 03:37:43,615 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-17 03:37:43,615 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:43,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:43,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:43,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:43,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611856722] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:43,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:43,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-17 03:37:43,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928746488] [2024-11-17 03:37:43,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:43,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 03:37:43,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:43,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 03:37:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-17 03:37:43,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:43,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 718 transitions, 20413 flow. Second operand has 15 states, 15 states have (on average 8.866666666666667) internal successors, (133), 15 states have internal predecessors, (133), 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) [2024-11-17 03:37:43,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:43,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:43,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:46,630 INFO L124 PetriNetUnfolderBase]: 5654/10079 cut-off events. [2024-11-17 03:37:46,630 INFO L125 PetriNetUnfolderBase]: For 584327/584327 co-relation queries the response was YES. [2024-11-17 03:37:46,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100163 conditions, 10079 events. 5654/10079 cut-off events. For 584327/584327 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 73607 event pairs, 1356 based on Foata normal form. 36/10114 useless extension candidates. Maximal degree in co-relation 100068. Up to 5220 conditions per place. [2024-11-17 03:37:46,737 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 454 selfloop transitions, 525 changer transitions 13/995 dead transitions. [2024-11-17 03:37:46,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 995 transitions, 27970 flow [2024-11-17 03:37:46,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-17 03:37:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-17 03:37:46,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 359 transitions. [2024-11-17 03:37:46,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42738095238095236 [2024-11-17 03:37:46,738 INFO L175 Difference]: Start difference. First operand has 286 places, 718 transitions, 20413 flow. Second operand 28 states and 359 transitions. [2024-11-17 03:37:46,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 995 transitions, 27970 flow [2024-11-17 03:37:51,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 995 transitions, 27733 flow, removed 36 selfloop flow, removed 12 redundant places. [2024-11-17 03:37:51,530 INFO L231 Difference]: Finished difference. Result has 314 places, 866 transitions, 26141 flow [2024-11-17 03:37:51,531 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=20189, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=718, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=399, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=26141, PETRI_PLACES=314, PETRI_TRANSITIONS=866} [2024-11-17 03:37:51,531 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 284 predicate places. [2024-11-17 03:37:51,531 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 866 transitions, 26141 flow [2024-11-17 03:37:51,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.866666666666667) internal successors, (133), 15 states have internal predecessors, (133), 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) [2024-11-17 03:37:51,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:51,532 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:51,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-17 03:37:51,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:51,732 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:51,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:51,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1898367796, now seen corresponding path program 11 times [2024-11-17 03:37:51,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:51,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373537485] [2024-11-17 03:37:51,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:51,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:51,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:51,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373537485] [2024-11-17 03:37:51,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373537485] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:51,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074184148] [2024-11-17 03:37:51,786 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 03:37:51,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:51,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:51,787 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:51,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-17 03:37:51,823 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-17 03:37:51,823 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:51,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:37:51,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:51,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:51,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074184148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:51,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:51,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-17 03:37:51,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842012543] [2024-11-17 03:37:51,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:51,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 03:37:51,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:51,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 03:37:51,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-17 03:37:51,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:37:51,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 866 transitions, 26141 flow. Second operand has 15 states, 15 states have (on average 9.266666666666667) internal successors, (139), 15 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) [2024-11-17 03:37:51,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:51,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:37:51,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:55,641 INFO L124 PetriNetUnfolderBase]: 6217/10989 cut-off events. [2024-11-17 03:37:55,641 INFO L125 PetriNetUnfolderBase]: For 813611/813611 co-relation queries the response was YES. [2024-11-17 03:37:55,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119612 conditions, 10989 events. 6217/10989 cut-off events. For 813611/813611 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 80635 event pairs, 914 based on Foata normal form. 120/11108 useless extension candidates. Maximal degree in co-relation 119503. Up to 3804 conditions per place. [2024-11-17 03:37:55,806 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 477 selfloop transitions, 591 changer transitions 14/1085 dead transitions. [2024-11-17 03:37:55,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 1085 transitions, 33459 flow [2024-11-17 03:37:55,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-17 03:37:55,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-17 03:37:55,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 280 transitions. [2024-11-17 03:37:55,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-17 03:37:55,807 INFO L175 Difference]: Start difference. First operand has 314 places, 866 transitions, 26141 flow. Second operand 20 states and 280 transitions. [2024-11-17 03:37:55,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 1085 transitions, 33459 flow [2024-11-17 03:38:02,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 1085 transitions, 31964 flow, removed 509 selfloop flow, removed 6 redundant places. [2024-11-17 03:38:02,262 INFO L231 Difference]: Finished difference. Result has 339 places, 944 transitions, 30018 flow [2024-11-17 03:38:02,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=24755, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=857, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=510, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=30018, PETRI_PLACES=339, PETRI_TRANSITIONS=944} [2024-11-17 03:38:02,263 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 309 predicate places. [2024-11-17 03:38:02,263 INFO L471 AbstractCegarLoop]: Abstraction has has 339 places, 944 transitions, 30018 flow [2024-11-17 03:38:02,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.266666666666667) internal successors, (139), 15 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) [2024-11-17 03:38:02,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:38:02,263 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:38:02,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-17 03:38:02,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:38:02,464 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:38:02,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:38:02,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1382505520, now seen corresponding path program 12 times [2024-11-17 03:38:02,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:38:02,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558262687] [2024-11-17 03:38:02,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:38:02,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:38:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:38:02,505 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:02,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:38:02,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558262687] [2024-11-17 03:38:02,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558262687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:38:02,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201004873] [2024-11-17 03:38:02,506 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-17 03:38:02,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:38:02,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:38:02,508 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:38:02,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-17 03:38:02,548 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-17 03:38:02,548 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:38:02,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:38:02,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:38:02,606 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:02,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:38:02,641 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 03:38:02,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201004873] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:38:02,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:38:02,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-17 03:38:02,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904683090] [2024-11-17 03:38:02,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:38:02,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 03:38:02,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:38:02,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 03:38:02,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-17 03:38:02,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:38:02,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 944 transitions, 30018 flow. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:38:02,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:38:02,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:38:02,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:38:06,184 INFO L124 PetriNetUnfolderBase]: 6559/11589 cut-off events. [2024-11-17 03:38:06,184 INFO L125 PetriNetUnfolderBase]: For 868969/868969 co-relation queries the response was YES. [2024-11-17 03:38:06,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128618 conditions, 11589 events. 6559/11589 cut-off events. For 868969/868969 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 85581 event pairs, 901 based on Foata normal form. 66/11654 useless extension candidates. Maximal degree in co-relation 128501. Up to 3559 conditions per place. [2024-11-17 03:38:06,312 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 442 selfloop transitions, 640 changer transitions 11/1096 dead transitions. [2024-11-17 03:38:06,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 1096 transitions, 35559 flow [2024-11-17 03:38:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-17 03:38:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-17 03:38:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 257 transitions. [2024-11-17 03:38:06,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45087719298245615 [2024-11-17 03:38:06,313 INFO L175 Difference]: Start difference. First operand has 339 places, 944 transitions, 30018 flow. Second operand 19 states and 257 transitions. [2024-11-17 03:38:06,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 1096 transitions, 35559 flow [2024-11-17 03:38:11,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 1096 transitions, 35142 flow, removed 140 selfloop flow, removed 5 redundant places. [2024-11-17 03:38:11,340 INFO L231 Difference]: Finished difference. Result has 359 places, 986 transitions, 33756 flow [2024-11-17 03:38:11,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=29540, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=935, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=591, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=33756, PETRI_PLACES=359, PETRI_TRANSITIONS=986} [2024-11-17 03:38:11,341 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 329 predicate places. [2024-11-17 03:38:11,341 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 986 transitions, 33756 flow [2024-11-17 03:38:11,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:38:11,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:38:11,342 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:38:11,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-17 03:38:11,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:38:11,542 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:38:11,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:38:11,543 INFO L85 PathProgramCache]: Analyzing trace with hash 239436092, now seen corresponding path program 13 times [2024-11-17 03:38:11,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:38:11,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588885036] [2024-11-17 03:38:11,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:38:11,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:38:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:38:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:11,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:38:11,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588885036] [2024-11-17 03:38:11,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588885036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:38:11,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118230440] [2024-11-17 03:38:11,585 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-17 03:38:11,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:38:11,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:38:11,586 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:38:11,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-17 03:38:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:38:11,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 03:38:11,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:38:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:11,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:38:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:11,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118230440] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:38:11,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:38:11,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2024-11-17 03:38:11,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082892233] [2024-11-17 03:38:11,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:38:11,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 03:38:11,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:38:11,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 03:38:11,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-17 03:38:11,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 30 [2024-11-17 03:38:11,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 986 transitions, 33756 flow. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 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) [2024-11-17 03:38:11,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:38:11,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 30 [2024-11-17 03:38:11,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:38:15,783 INFO L124 PetriNetUnfolderBase]: 6550/11647 cut-off events. [2024-11-17 03:38:15,783 INFO L125 PetriNetUnfolderBase]: For 941887/941887 co-relation queries the response was YES. [2024-11-17 03:38:15,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134967 conditions, 11647 events. 6550/11647 cut-off events. For 941887/941887 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 86896 event pairs, 1645 based on Foata normal form. 16/11662 useless extension candidates. Maximal degree in co-relation 134842. Up to 6419 conditions per place. [2024-11-17 03:38:15,927 INFO L140 encePairwiseOnDemand]: 20/30 looper letters, 458 selfloop transitions, 590 changer transitions 13/1064 dead transitions. [2024-11-17 03:38:15,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 1064 transitions, 36979 flow [2024-11-17 03:38:15,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 03:38:15,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-17 03:38:15,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 237 transitions. [2024-11-17 03:38:15,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4388888888888889 [2024-11-17 03:38:15,928 INFO L175 Difference]: Start difference. First operand has 359 places, 986 transitions, 33756 flow. Second operand 18 states and 237 transitions. [2024-11-17 03:38:15,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 1064 transitions, 36979 flow [2024-11-17 03:38:21,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1064 transitions, 36692 flow, removed 76 selfloop flow, removed 14 redundant places. [2024-11-17 03:38:21,698 INFO L231 Difference]: Finished difference. Result has 362 places, 980 transitions, 35758 flow [2024-11-17 03:38:21,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=33211, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=577, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=35758, PETRI_PLACES=362, PETRI_TRANSITIONS=980} [2024-11-17 03:38:21,699 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 332 predicate places. [2024-11-17 03:38:21,699 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 980 transitions, 35758 flow [2024-11-17 03:38:21,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 13 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) [2024-11-17 03:38:21,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:38:21,700 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:38:21,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-17 03:38:21,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-17 03:38:21,900 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:38:21,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:38:21,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1120003894, now seen corresponding path program 14 times [2024-11-17 03:38:21,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:38:21,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686059163] [2024-11-17 03:38:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:38:21,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:38:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:38:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 03:38:21,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:38:21,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686059163] [2024-11-17 03:38:21,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686059163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:38:21,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657185244] [2024-11-17 03:38:21,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:38:21,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:38:21,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:38:21,970 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:38:21,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-17 03:38:22,009 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:38:22,010 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:38:22,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 03:38:22,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:38:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:22,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:38:22,118 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:38:22,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657185244] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:38:22,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:38:22,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 7 [2024-11-17 03:38:22,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58378662] [2024-11-17 03:38:22,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:38:22,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 03:38:22,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:38:22,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 03:38:22,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-17 03:38:22,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-17 03:38:22,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 980 transitions, 35758 flow. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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) [2024-11-17 03:38:22,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:38:22,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-17 03:38:22,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand