./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cc2344d8bedffb786f66d288e651407abc416f1e22d065ca4595f05e214f2a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 18:53:55,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 18:53:55,874 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 18:53:55,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 18:53:55,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 18:53:55,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 18:53:55,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 18:53:55,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 18:53:55,903 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 18:53:55,903 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 18:53:55,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 18:53:55,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 18:53:55,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 18:53:55,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 18:53:55,905 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 18:53:55,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 18:53:55,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 18:53:55,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 18:53:55,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 18:53:55,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 18:53:55,907 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 18:53:55,908 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 18:53:55,908 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 18:53:55,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 18:53:55,909 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 18:53:55,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 18:53:55,909 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 18:53:55,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 18:53:55,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 18:53:55,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 18:53:55,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 18:53:55,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 18:53:55,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 18:53:55,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:53:55,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 18:53:55,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 18:53:55,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 18:53:55,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 18:53:55,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 18:53:55,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 18:53:55,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 18:53:55,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 18:53:55,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc2344d8bedffb786f66d288e651407abc416f1e22d065ca4595f05e214f2a3 [2024-10-24 18:53:56,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 18:53:56,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 18:53:56,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 18:53:56,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 18:53:56,205 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 18:53:56,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.i [2024-10-24 18:53:57,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 18:53:57,923 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 18:53:57,924 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.i [2024-10-24 18:53:57,939 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28fee6450/06d4a6866e52447db6be366c30c014bf/FLAGfe7b9beeb [2024-10-24 18:53:57,952 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28fee6450/06d4a6866e52447db6be366c30c014bf [2024-10-24 18:53:57,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 18:53:57,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 18:53:57,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 18:53:57,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 18:53:57,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 18:53:57,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:53:57" (1/1) ... [2024-10-24 18:53:57,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64bd1e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:57, skipping insertion in model container [2024-10-24 18:53:57,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:53:57" (1/1) ... [2024-10-24 18:53:58,020 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 18:53:58,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:53:58,412 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 18:53:58,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 18:53:58,580 INFO L204 MainTranslator]: Completed translation [2024-10-24 18:53:58,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58 WrapperNode [2024-10-24 18:53:58,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 18:53:58,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 18:53:58,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 18:53:58,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 18:53:58,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,644 INFO L138 Inliner]: procedures = 180, calls = 59, calls flagged for inlining = 54, calls inlined = 79, statements flattened = 479 [2024-10-24 18:53:58,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 18:53:58,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 18:53:58,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 18:53:58,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 18:53:58,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,676 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 18:53:58,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 18:53:58,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 18:53:58,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 18:53:58,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 18:53:58,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (1/1) ... [2024-10-24 18:53:58,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 18:53:58,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 18:53:58,755 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) [2024-10-24 18:53:58,761 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 [2024-10-24 18:53:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-24 18:53:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-24 18:53:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 18:53:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 18:53:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 18:53:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 18:53:58,806 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 18:53:58,930 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 18:53:58,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 18:53:59,579 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 18:53:59,579 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 18:53:59,870 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 18:53:59,871 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-24 18:53:59,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:53:59 BoogieIcfgContainer [2024-10-24 18:53:59,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 18:53:59,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 18:53:59,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 18:53:59,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 18:53:59,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:53:57" (1/3) ... [2024-10-24 18:53:59,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7283495f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:53:59, skipping insertion in model container [2024-10-24 18:53:59,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:53:58" (2/3) ... [2024-10-24 18:53:59,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7283495f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:53:59, skipping insertion in model container [2024-10-24 18:53:59,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:53:59" (3/3) ... [2024-10-24 18:53:59,883 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced.i [2024-10-24 18:53:59,902 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 18:53:59,903 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-24 18:53:59,903 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 18:54:00,009 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 18:54:00,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 223 transitions, 450 flow [2024-10-24 18:54:00,097 INFO L124 PetriNetUnfolderBase]: 64/227 cut-off events. [2024-10-24 18:54:00,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:54:00,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 227 events. 64/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 997 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 220. Up to 10 conditions per place. [2024-10-24 18:54:00,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 223 transitions, 450 flow [2024-10-24 18:54:00,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 223 transitions, 450 flow [2024-10-24 18:54:00,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:54:00,122 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;@7ffbf677, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:54:00,122 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-24 18:54:00,124 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 18:54:00,125 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-24 18:54:00,125 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:54:00,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:54:00,126 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-24 18:54:00,126 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err1ASSERT_VIOLATIONMEMORY_LEAK, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err3ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-10-24 18:54:00,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:54:00,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1472998, now seen corresponding path program 1 times [2024-10-24 18:54:00,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:54:00,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311180358] [2024-10-24 18:54:00,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:54:00,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:54:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:54:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:54:00,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:54:00,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311180358] [2024-10-24 18:54:00,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311180358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:54:00,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:54:00,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:54:00,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5261459] [2024-10-24 18:54:00,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:54:00,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 18:54:00,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:54:00,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 18:54:00,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 18:54:00,330 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 223 [2024-10-24 18:54:00,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 223 transitions, 450 flow. Second operand has 2 states, 2 states have (on average 96.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:54:00,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:54:00,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 223 [2024-10-24 18:54:00,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:54:00,526 INFO L124 PetriNetUnfolderBase]: 125/411 cut-off events. [2024-10-24 18:54:00,526 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:54:00,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 411 events. 125/411 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2272 event pairs, 65 based on Foata normal form. 66/420 useless extension candidates. Maximal degree in co-relation 627. Up to 225 conditions per place. [2024-10-24 18:54:00,533 INFO L140 encePairwiseOnDemand]: 187/223 looper letters, 80 selfloop transitions, 0 changer transitions 0/174 dead transitions. [2024-10-24 18:54:00,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 174 transitions, 512 flow [2024-10-24 18:54:00,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 18:54:00,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 18:54:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 306 transitions. [2024-10-24 18:54:00,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6860986547085202 [2024-10-24 18:54:00,553 INFO L175 Difference]: Start difference. First operand has 162 places, 223 transitions, 450 flow. Second operand 2 states and 306 transitions. [2024-10-24 18:54:00,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 174 transitions, 512 flow [2024-10-24 18:54:00,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 174 transitions, 512 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 18:54:00,562 INFO L231 Difference]: Finished difference. Result has 148 places, 174 transitions, 352 flow [2024-10-24 18:54:00,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=352, PETRI_PLACES=148, PETRI_TRANSITIONS=174} [2024-10-24 18:54:00,570 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, -14 predicate places. [2024-10-24 18:54:00,570 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 174 transitions, 352 flow [2024-10-24 18:54:00,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:54:00,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:54:00,570 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-10-24 18:54:00,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 18:54:00,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONMEMORY_LEAK, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err3ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-10-24 18:54:00,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:54:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1415839415, now seen corresponding path program 1 times [2024-10-24 18:54:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:54:00,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940449540] [2024-10-24 18:54:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:54:00,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:54:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 18:54:00,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 18:54:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 18:54:00,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 18:54:00,645 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 18:54:00,647 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-10-24 18:54:00,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (22 of 24 remaining) [2024-10-24 18:54:00,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (21 of 24 remaining) [2024-10-24 18:54:00,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (20 of 24 remaining) [2024-10-24 18:54:00,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (19 of 24 remaining) [2024-10-24 18:54:00,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (18 of 24 remaining) [2024-10-24 18:54:00,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (17 of 24 remaining) [2024-10-24 18:54:00,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (16 of 24 remaining) [2024-10-24 18:54:00,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (15 of 24 remaining) [2024-10-24 18:54:00,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (14 of 24 remaining) [2024-10-24 18:54:00,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (13 of 24 remaining) [2024-10-24 18:54:00,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (12 of 24 remaining) [2024-10-24 18:54:00,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 24 remaining) [2024-10-24 18:54:00,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 24 remaining) [2024-10-24 18:54:00,652 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (9 of 24 remaining) [2024-10-24 18:54:00,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (8 of 24 remaining) [2024-10-24 18:54:00,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (7 of 24 remaining) [2024-10-24 18:54:00,653 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (6 of 24 remaining) [2024-10-24 18:54:00,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (5 of 24 remaining) [2024-10-24 18:54:00,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 24 remaining) [2024-10-24 18:54:00,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (3 of 24 remaining) [2024-10-24 18:54:00,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (2 of 24 remaining) [2024-10-24 18:54:00,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (1 of 24 remaining) [2024-10-24 18:54:00,655 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (0 of 24 remaining) [2024-10-24 18:54:00,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 18:54:00,657 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 18:54:00,660 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 18:54:00,661 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 18:54:00,739 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 18:54:00,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 440 transitions, 890 flow [2024-10-24 18:54:00,844 INFO L124 PetriNetUnfolderBase]: 128/448 cut-off events. [2024-10-24 18:54:00,844 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 18:54:00,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 448 events. 128/448 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2566 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 436. Up to 10 conditions per place. [2024-10-24 18:54:00,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 440 transitions, 890 flow [2024-10-24 18:54:00,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 440 transitions, 890 flow [2024-10-24 18:54:00,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:54:00,876 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;@7ffbf677, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:54:00,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-10-24 18:54:00,877 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 18:54:00,878 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-24 18:54:00,878 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:54:00,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:54:00,879 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-24 18:54:00,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err1ASSERT_VIOLATIONMEMORY_LEAK, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err3ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-10-24 18:54:00,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:54:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1909918, now seen corresponding path program 1 times [2024-10-24 18:54:00,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:54:00,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140122270] [2024-10-24 18:54:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:54:00,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:54:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:54:00,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:54:00,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:54:00,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140122270] [2024-10-24 18:54:00,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140122270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:54:00,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:54:00,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:54:00,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228350532] [2024-10-24 18:54:00,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:54:00,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 18:54:00,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:54:00,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 18:54:00,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 18:54:00,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 440 [2024-10-24 18:54:00,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 440 transitions, 890 flow. Second operand has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:54:00,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:54:00,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 440 [2024-10-24 18:54:00,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 18:54:04,626 INFO L124 PetriNetUnfolderBase]: 18959/39069 cut-off events. [2024-10-24 18:54:04,627 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2024-10-24 18:54:04,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65274 conditions, 39069 events. 18959/39069 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 1785. Compared 404668 event pairs, 13409 based on Foata normal form. 9124/41949 useless extension candidates. Maximal degree in co-relation 63403. Up to 25999 conditions per place. [2024-10-24 18:54:04,959 INFO L140 encePairwiseOnDemand]: 369/440 looper letters, 158 selfloop transitions, 0 changer transitions 0/345 dead transitions. [2024-10-24 18:54:04,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 345 transitions, 1016 flow [2024-10-24 18:54:04,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 18:54:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 18:54:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 605 transitions. [2024-10-24 18:54:04,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-10-24 18:54:04,966 INFO L175 Difference]: Start difference. First operand has 317 places, 440 transitions, 890 flow. Second operand 2 states and 605 transitions. [2024-10-24 18:54:04,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 345 transitions, 1016 flow [2024-10-24 18:54:04,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 345 transitions, 1016 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 18:54:04,977 INFO L231 Difference]: Finished difference. Result has 291 places, 345 transitions, 700 flow [2024-10-24 18:54:04,981 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=440, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=700, PETRI_PLACES=291, PETRI_TRANSITIONS=345} [2024-10-24 18:54:04,982 INFO L277 CegarLoopForPetriNet]: 317 programPoint places, -26 predicate places. [2024-10-24 18:54:04,982 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 345 transitions, 700 flow [2024-10-24 18:54:04,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:54:04,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:54:04,984 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1] [2024-10-24 18:54:04,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 18:54:04,984 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONMEMORY_LEAK, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err3ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-10-24 18:54:04,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:54:04,985 INFO L85 PathProgramCache]: Analyzing trace with hash -891805107, now seen corresponding path program 1 times [2024-10-24 18:54:04,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:54:04,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304289734] [2024-10-24 18:54:04,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:54:04,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:54:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 18:54:05,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 18:54:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 18:54:05,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 18:54:05,022 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 18:54:05,026 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-10-24 18:54:05,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (33 of 35 remaining) [2024-10-24 18:54:05,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (32 of 35 remaining) [2024-10-24 18:54:05,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (31 of 35 remaining) [2024-10-24 18:54:05,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (30 of 35 remaining) [2024-10-24 18:54:05,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (29 of 35 remaining) [2024-10-24 18:54:05,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (28 of 35 remaining) [2024-10-24 18:54:05,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (27 of 35 remaining) [2024-10-24 18:54:05,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (26 of 35 remaining) [2024-10-24 18:54:05,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (25 of 35 remaining) [2024-10-24 18:54:05,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (24 of 35 remaining) [2024-10-24 18:54:05,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (23 of 35 remaining) [2024-10-24 18:54:05,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (22 of 35 remaining) [2024-10-24 18:54:05,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (21 of 35 remaining) [2024-10-24 18:54:05,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (20 of 35 remaining) [2024-10-24 18:54:05,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (19 of 35 remaining) [2024-10-24 18:54:05,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (18 of 35 remaining) [2024-10-24 18:54:05,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (17 of 35 remaining) [2024-10-24 18:54:05,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (16 of 35 remaining) [2024-10-24 18:54:05,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (15 of 35 remaining) [2024-10-24 18:54:05,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (14 of 35 remaining) [2024-10-24 18:54:05,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (13 of 35 remaining) [2024-10-24 18:54:05,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (12 of 35 remaining) [2024-10-24 18:54:05,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (11 of 35 remaining) [2024-10-24 18:54:05,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 35 remaining) [2024-10-24 18:54:05,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (9 of 35 remaining) [2024-10-24 18:54:05,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (8 of 35 remaining) [2024-10-24 18:54:05,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (7 of 35 remaining) [2024-10-24 18:54:05,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (6 of 35 remaining) [2024-10-24 18:54:05,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (5 of 35 remaining) [2024-10-24 18:54:05,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 35 remaining) [2024-10-24 18:54:05,032 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (3 of 35 remaining) [2024-10-24 18:54:05,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (2 of 35 remaining) [2024-10-24 18:54:05,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (1 of 35 remaining) [2024-10-24 18:54:05,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (0 of 35 remaining) [2024-10-24 18:54:05,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 18:54:05,034 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 18:54:05,035 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 18:54:05,035 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-24 18:54:05,142 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 18:54:05,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 472 places, 657 transitions, 1332 flow [2024-10-24 18:54:05,330 INFO L124 PetriNetUnfolderBase]: 192/669 cut-off events. [2024-10-24 18:54:05,330 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-24 18:54:05,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 669 events. 192/669 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4329 event pairs, 0 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 652. Up to 10 conditions per place. [2024-10-24 18:54:05,356 INFO L82 GeneralOperation]: Start removeDead. Operand has 472 places, 657 transitions, 1332 flow [2024-10-24 18:54:05,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 472 places, 657 transitions, 1332 flow [2024-10-24 18:54:05,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 18:54:05,384 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;@7ffbf677, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 18:54:05,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-10-24 18:54:05,386 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 18:54:05,386 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-24 18:54:05,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 18:54:05,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 18:54:05,387 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-24 18:54:05,387 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err1ASSERT_VIOLATIONMEMORY_LEAK, thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err3ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-10-24 18:54:05,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 18:54:05,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2562319, now seen corresponding path program 1 times [2024-10-24 18:54:05,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 18:54:05,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831745815] [2024-10-24 18:54:05,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 18:54:05,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 18:54:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 18:54:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 18:54:05,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 18:54:05,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831745815] [2024-10-24 18:54:05,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831745815] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 18:54:05,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 18:54:05,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 18:54:05,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315290282] [2024-10-24 18:54:05,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 18:54:05,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 18:54:05,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 18:54:05,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 18:54:05,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 18:54:05,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 657 [2024-10-24 18:54:05,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 657 transitions, 1332 flow. Second operand has 2 states, 2 states have (on average 282.0) internal successors, (564), 2 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 18:54:05,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 18:54:05,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 657 [2024-10-24 18:54:05,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand