./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../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 3061b6dc 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/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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:23:16,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:23:17,031 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:23:17,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:23:17,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:23:17,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:23:17,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:23:17,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:23:17,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:23:17,065 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:23:17,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:23:17,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:23:17,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:23:17,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:23:17,067 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:23:17,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:23:17,068 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:23:17,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:23:17,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:23:17,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:23:17,069 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:23:17,070 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:23:17,070 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:23:17,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:23:17,071 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:23:17,073 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:23:17,073 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:23:17,073 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:23:17,073 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:23:17,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:23:17,074 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:23:17,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:23:17,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:23:17,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:23:17,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:23:17,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:23:17,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:23:17,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:23:17,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:23:17,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:23:17,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:23:17,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:23:17,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc2344d8bedffb786f66d288e651407abc416f1e22d065ca4595f05e214f2a3 [2024-11-19 09:23:17,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:23:17,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:23:17,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:23:17,281 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:23:17,282 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:23:17,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.i [2024-11-19 09:23:18,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:23:18,702 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:23:18,703 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced.i [2024-11-19 09:23:18,716 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b08efd9d/8d40324b8d0b4828a00c4006c4c43371/FLAG928b45d45 [2024-11-19 09:23:18,727 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b08efd9d/8d40324b8d0b4828a00c4006c4c43371 [2024-11-19 09:23:18,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:23:18,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:23:18,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:23:18,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:23:18,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:23:18,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:23:18" (1/1) ... [2024-11-19 09:23:18,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b67a564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:18, skipping insertion in model container [2024-11-19 09:23:18,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:23:18" (1/1) ... [2024-11-19 09:23:18,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:23:19,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:23:19,123 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:23:19,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:23:19,208 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:23:19,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19 WrapperNode [2024-11-19 09:23:19,208 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:23:19,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:23:19,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:23:19,210 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:23:19,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,270 INFO L138 Inliner]: procedures = 180, calls = 59, calls flagged for inlining = 54, calls inlined = 79, statements flattened = 479 [2024-11-19 09:23:19,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:23:19,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:23:19,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:23:19,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:23:19,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,288 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,311 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]. [2024-11-19 09:23:19,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:23:19,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:23:19,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:23:19,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:23:19,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (1/1) ... [2024-11-19 09:23:19,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:23:19,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:23:19,381 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) [2024-11-19 09:23:19,386 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 [2024-11-19 09:23:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-19 09:23:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-19 09:23:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:23:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:23:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:23:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:23:19,421 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:23:19,526 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:23:19,528 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:23:19,973 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:23:19,974 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:23:20,230 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:23:20,230 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 09:23:20,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:23:20 BoogieIcfgContainer [2024-11-19 09:23:20,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:23:20,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:23:20,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:23:20,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:23:20,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:23:18" (1/3) ... [2024-11-19 09:23:20,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d452a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:23:20, skipping insertion in model container [2024-11-19 09:23:20,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:23:19" (2/3) ... [2024-11-19 09:23:20,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d452a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:23:20, skipping insertion in model container [2024-11-19 09:23:20,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:23:20" (3/3) ... [2024-11-19 09:23:20,239 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced.i [2024-11-19 09:23:20,254 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:23:20,254 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 09:23:20,254 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:23:20,337 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:23:20,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 223 transitions, 450 flow [2024-11-19 09:23:20,419 INFO L124 PetriNetUnfolderBase]: 64/227 cut-off events. [2024-11-19 09:23:20,419 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:23:20,425 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. [2024-11-19 09:23:20,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 223 transitions, 450 flow [2024-11-19 09:23:20,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 223 transitions, 450 flow [2024-11-19 09:23:20,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:23:20,443 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;@3c70a9f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:23:20,443 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-19 09:23:20,445 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:23:20,446 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-19 09:23:20,446 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:23:20,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:23:20,446 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 09:23:20,447 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)] === [2024-11-19 09:23:20,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:23:20,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1472998, now seen corresponding path program 1 times [2024-11-19 09:23:20,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:23:20,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030800773] [2024-11-19 09:23:20,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:23:20,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:23:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:23:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:23:20,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:23:20,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030800773] [2024-11-19 09:23:20,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030800773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:23:20,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:23:20,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:23:20,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648829303] [2024-11-19 09:23:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:23:20,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 09:23:20,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:23:20,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 09:23:20,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 09:23:20,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 223 [2024-11-19 09:23:20,598 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) [2024-11-19 09:23:20,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:23:20,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 223 [2024-11-19 09:23:20,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:23:20,777 INFO L124 PetriNetUnfolderBase]: 125/411 cut-off events. [2024-11-19 09:23:20,777 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:23:20,779 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. [2024-11-19 09:23:20,781 INFO L140 encePairwiseOnDemand]: 187/223 looper letters, 80 selfloop transitions, 0 changer transitions 0/174 dead transitions. [2024-11-19 09:23:20,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 174 transitions, 512 flow [2024-11-19 09:23:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 09:23:20,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 09:23:20,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 306 transitions. [2024-11-19 09:23:20,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6860986547085202 [2024-11-19 09:23:20,820 INFO L175 Difference]: Start difference. First operand has 162 places, 223 transitions, 450 flow. Second operand 2 states and 306 transitions. [2024-11-19 09:23:20,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 174 transitions, 512 flow [2024-11-19 09:23:20,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 174 transitions, 512 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 09:23:20,830 INFO L231 Difference]: Finished difference. Result has 148 places, 174 transitions, 352 flow [2024-11-19 09:23:20,832 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} [2024-11-19 09:23:20,835 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, -14 predicate places. [2024-11-19 09:23:20,835 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 174 transitions, 352 flow [2024-11-19 09:23:20,835 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) [2024-11-19 09:23:20,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:23:20,836 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-11-19 09:23:20,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:23:20,836 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)] === [2024-11-19 09:23:20,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:23:20,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1415839415, now seen corresponding path program 1 times [2024-11-19 09:23:20,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:23:20,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409154698] [2024-11-19 09:23:20,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:23:20,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:23:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:23:20,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 09:23:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:23:20,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 09:23:20,885 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 09:23:20,886 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-19 09:23:20,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (22 of 24 remaining) [2024-11-19 09:23:20,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (21 of 24 remaining) [2024-11-19 09:23:20,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (20 of 24 remaining) [2024-11-19 09:23:20,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (19 of 24 remaining) [2024-11-19 09:23:20,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (18 of 24 remaining) [2024-11-19 09:23:20,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (17 of 24 remaining) [2024-11-19 09:23:20,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (16 of 24 remaining) [2024-11-19 09:23:20,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (15 of 24 remaining) [2024-11-19 09:23:20,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (14 of 24 remaining) [2024-11-19 09:23:20,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (13 of 24 remaining) [2024-11-19 09:23:20,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (12 of 24 remaining) [2024-11-19 09:23:20,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 24 remaining) [2024-11-19 09:23:20,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 24 remaining) [2024-11-19 09:23:20,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (9 of 24 remaining) [2024-11-19 09:23:20,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (8 of 24 remaining) [2024-11-19 09:23:20,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (7 of 24 remaining) [2024-11-19 09:23:20,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (6 of 24 remaining) [2024-11-19 09:23:20,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (5 of 24 remaining) [2024-11-19 09:23:20,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 24 remaining) [2024-11-19 09:23:20,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (3 of 24 remaining) [2024-11-19 09:23:20,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (2 of 24 remaining) [2024-11-19 09:23:20,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (1 of 24 remaining) [2024-11-19 09:23:20,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (0 of 24 remaining) [2024-11-19 09:23:20,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:23:20,894 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 09:23:20,896 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 09:23:20,896 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 09:23:20,974 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:23:20,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 440 transitions, 890 flow [2024-11-19 09:23:21,029 INFO L124 PetriNetUnfolderBase]: 128/448 cut-off events. [2024-11-19 09:23:21,030 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 09:23:21,041 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. [2024-11-19 09:23:21,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 440 transitions, 890 flow [2024-11-19 09:23:21,052 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 440 transitions, 890 flow [2024-11-19 09:23:21,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:23:21,054 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;@3c70a9f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:23:21,055 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-19 09:23:21,056 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:23:21,056 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-19 09:23:21,057 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:23:21,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:23:21,057 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 09:23:21,057 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)] === [2024-11-19 09:23:21,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:23:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1909918, now seen corresponding path program 1 times [2024-11-19 09:23:21,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:23:21,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661841735] [2024-11-19 09:23:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:23:21,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:23:21,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:23:21,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:23:21,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:23:21,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661841735] [2024-11-19 09:23:21,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661841735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:23:21,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:23:21,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:23:21,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769460022] [2024-11-19 09:23:21,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:23:21,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 09:23:21,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:23:21,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 09:23:21,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 09:23:21,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 440 [2024-11-19 09:23:21,091 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) [2024-11-19 09:23:21,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:23:21,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 440 [2024-11-19 09:23:21,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:23:23,804 INFO L124 PetriNetUnfolderBase]: 18959/39069 cut-off events. [2024-11-19 09:23:23,806 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2024-11-19 09:23:23,870 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. [2024-11-19 09:23:24,030 INFO L140 encePairwiseOnDemand]: 369/440 looper letters, 158 selfloop transitions, 0 changer transitions 0/345 dead transitions. [2024-11-19 09:23:24,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 345 transitions, 1016 flow [2024-11-19 09:23:24,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 09:23:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 09:23:24,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 605 transitions. [2024-11-19 09:23:24,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-11-19 09:23:24,039 INFO L175 Difference]: Start difference. First operand has 317 places, 440 transitions, 890 flow. Second operand 2 states and 605 transitions. [2024-11-19 09:23:24,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 345 transitions, 1016 flow [2024-11-19 09:23:24,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 345 transitions, 1016 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 09:23:24,048 INFO L231 Difference]: Finished difference. Result has 291 places, 345 transitions, 700 flow [2024-11-19 09:23:24,049 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} [2024-11-19 09:23:24,050 INFO L277 CegarLoopForPetriNet]: 317 programPoint places, -26 predicate places. [2024-11-19 09:23:24,050 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 345 transitions, 700 flow [2024-11-19 09:23:24,050 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) [2024-11-19 09:23:24,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:23:24,050 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1] [2024-11-19 09:23:24,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:23:24,051 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)] === [2024-11-19 09:23:24,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:23:24,051 INFO L85 PathProgramCache]: Analyzing trace with hash -891805107, now seen corresponding path program 1 times [2024-11-19 09:23:24,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:23:24,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256922373] [2024-11-19 09:23:24,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:23:24,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:23:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:23:24,067 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 09:23:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 09:23:24,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 09:23:24,081 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 09:23:24,082 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-19 09:23:24,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (33 of 35 remaining) [2024-11-19 09:23:24,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (32 of 35 remaining) [2024-11-19 09:23:24,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (31 of 35 remaining) [2024-11-19 09:23:24,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (30 of 35 remaining) [2024-11-19 09:23:24,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (29 of 35 remaining) [2024-11-19 09:23:24,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (28 of 35 remaining) [2024-11-19 09:23:24,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (27 of 35 remaining) [2024-11-19 09:23:24,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (26 of 35 remaining) [2024-11-19 09:23:24,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (25 of 35 remaining) [2024-11-19 09:23:24,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (24 of 35 remaining) [2024-11-19 09:23:24,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (23 of 35 remaining) [2024-11-19 09:23:24,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (22 of 35 remaining) [2024-11-19 09:23:24,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (21 of 35 remaining) [2024-11-19 09:23:24,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (20 of 35 remaining) [2024-11-19 09:23:24,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (19 of 35 remaining) [2024-11-19 09:23:24,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (18 of 35 remaining) [2024-11-19 09:23:24,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (17 of 35 remaining) [2024-11-19 09:23:24,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (16 of 35 remaining) [2024-11-19 09:23:24,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (15 of 35 remaining) [2024-11-19 09:23:24,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (14 of 35 remaining) [2024-11-19 09:23:24,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (13 of 35 remaining) [2024-11-19 09:23:24,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (12 of 35 remaining) [2024-11-19 09:23:24,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (11 of 35 remaining) [2024-11-19 09:23:24,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 35 remaining) [2024-11-19 09:23:24,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (9 of 35 remaining) [2024-11-19 09:23:24,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (8 of 35 remaining) [2024-11-19 09:23:24,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (7 of 35 remaining) [2024-11-19 09:23:24,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (6 of 35 remaining) [2024-11-19 09:23:24,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (5 of 35 remaining) [2024-11-19 09:23:24,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (4 of 35 remaining) [2024-11-19 09:23:24,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (3 of 35 remaining) [2024-11-19 09:23:24,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (2 of 35 remaining) [2024-11-19 09:23:24,088 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (1 of 35 remaining) [2024-11-19 09:23:24,088 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (0 of 35 remaining) [2024-11-19 09:23:24,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:23:24,088 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 09:23:24,091 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 09:23:24,091 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 09:23:24,157 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 09:23:24,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 472 places, 657 transitions, 1332 flow [2024-11-19 09:23:24,235 INFO L124 PetriNetUnfolderBase]: 192/669 cut-off events. [2024-11-19 09:23:24,236 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 09:23:24,251 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. [2024-11-19 09:23:24,251 INFO L82 GeneralOperation]: Start removeDead. Operand has 472 places, 657 transitions, 1332 flow [2024-11-19 09:23:24,362 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 472 places, 657 transitions, 1332 flow [2024-11-19 09:23:24,363 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:23:24,364 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;@3c70a9f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:23:24,364 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-19 09:23:24,365 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:23:24,365 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-19 09:23:24,365 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:23:24,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:23:24,365 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 09:23:24,365 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)] === [2024-11-19 09:23:24,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:23:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash 2562319, now seen corresponding path program 1 times [2024-11-19 09:23:24,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:23:24,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546949132] [2024-11-19 09:23:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:23:24,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:23:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:23:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:23:24,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:23:24,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546949132] [2024-11-19 09:23:24,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546949132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:23:24,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:23:24,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:23:24,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297567441] [2024-11-19 09:23:24,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:23:24,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 09:23:24,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:23:24,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 09:23:24,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 09:23:24,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 657 [2024-11-19 09:23:24,382 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) [2024-11-19 09:23:24,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:23:24,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 657 [2024-11-19 09:23:24,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand